151
|
Ding S, Hao M, Fu C, Lin T, Baktash A, Chen P, He D, Zhang C, Chen W, Whittaker AK, Bai Y, Wang L. In Situ Bonding Regulation of Surface Ligands for Efficient and Stable FAPbI 3 Quantum Dot Solar Cells. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2204476. [PMID: 36316248 PMCID: PMC9762318 DOI: 10.1002/advs.202204476] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/13/2022] [Indexed: 06/16/2023]
Abstract
Quantum dots (QDs) of formamidinium lead triiodide (FAPbI3 ) perovskite hold great potential, outperforming their inorganic counterparts in terms of phase stability and carrier lifetime, for high-performance solar cells. However, the highly dynamic nature of FAPbI3 QDs, which mainly originates from the proton exchange between oleic acid and oleylamine (OAm) surface ligands, is a key hurdle that impedes the fabrication of high-efficiency solar cells. To tackle such an issue, here, protonated-OAm in situ to strengthen the ligand binding at the surface of FAPbI3 QDs, which can effectively suppress the defect formation during QD synthesis and purification processes is selectively introduced. In addition, by forming a halide-rich surface environment, the ligand density in a broader range for FAPbI3 QDs without compromising their structural integrity, which significantly improves their optoelectronic properties can be modulated. As a result, the power conversion efficiency of FAPbI3 QD solar cells (QDSCs) is enhanced from 7.4% to 13.8%, a record for FAPbI3 QDSCs. Furthermore, the suppressed proton exchange and reduced surface defects in FAPbI3 QDs also enhance the stability of QDSCs, which retain 80% of the initial efficiency upon exposure to ambient air for 3000 hours.
Collapse
Affiliation(s)
- Shanshan Ding
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Mengmeng Hao
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Changkui Fu
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Tongen Lin
- School of Chemical EngineeringThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Ardeshir Baktash
- School of Chemical EngineeringThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Peng Chen
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Dongxu He
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Chengxi Zhang
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Weijian Chen
- Australian Centre for Advanced PhotovoltaicsSchool of Photovoltaics and Renewable Energy EngineeringUniversity of New South WalesSydneyNSW2052Australia
| | - Andrew K. Whittaker
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Yang Bai
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
- Faculty of Materials Science and Engineering/Institute of Technology for Carbon NeutralityShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen518055P. R. China
- Shenzhen Key Laboratory of Energy Materials for Carbon NeutralityShenzhen518055P. R. China
| | - Lianzhou Wang
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
- School of Chemical EngineeringThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| |
Collapse
|
152
|
Ion-exchange controlled precipitation of CsPbX3 nanocrystals in glasses. Ann Ital Chir 2022. [DOI: 10.1016/j.jeurceramsoc.2022.08.061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
153
|
Vurgaft A, Strassberg R, Shechter R, Lifer R, Dahl JC, Chan EM, Bekenstein Y. Inverse size-dependent Stokes shift in strongly quantum confined CsPbBr 3 perovskite nanoplates. NANOSCALE 2022; 14:17262-17270. [PMID: 36377431 DOI: 10.1039/d2nr03275a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Colloidal semiconductor nanocrystals (NCs) are used as bright chromatic fluorophores for energy-efficient displays. We focus here on the size-dependent Stokes shift for CsPbBr3 nanocrystals. The Stokes shift, i.e., the difference between the wavelengths of absorption and emission maxima, is crucial for display application, as it controls the degree to which light is reabsorbed by the emitting material reducing the energetic efficiency. One major impediment to the industrial adoption of NCs is that slight deviations in manufacturing conditions may result in a wide dispersion of the product's properties. A data-driven analysis of over 2000 reactions comparing two data sets, one produced via standard colloidal synthesis and the other via high-throughput automated synthesis is discussed. We show that differences in the reaction conditions of colloidal CsPbBr3 nanocrystals yield nanocrystals with opposite Stokes shift size-dependent trends. These match the morphologies of two-dimensional nanoplatelets (NPLs) and nanocrystal cubes. The Stokes shift size dependence trend of NPLs and nanocubes is non-monotonic indicating different physics is at play for the two nanocrystal morphologies. For nanocrystals with cubic shape, with the increase of edge length, there is a significant decrease in Stokes shift values. However, for NPLs with the increase of thickness (1-4 ML), Stokes shift values will increase. The study emphasizes the transition from a spectroscopic point of view and relates the two Stokes shift trends to 2D and 0D exciton dimensionalities for the two morphologies. Our findings highlight the importance of CsPbBr3 nanocrystal morphology for Stokes shift prediction.
Collapse
Affiliation(s)
- Amit Vurgaft
- The Solid-State Institute, Technion - Israel Institute of Technology, 32000 Haifa, Israel
| | - Rotem Strassberg
- The Solid-State Institute, Technion - Israel Institute of Technology, 32000 Haifa, Israel
| | - Reut Shechter
- Department of Materials Science and Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel.
| | - Rachel Lifer
- Department of Materials Science and Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel.
| | - Jakob C Dahl
- Department of Chemistry, University of California, Berkeley, California 94720, USA
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Emory M Chan
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Yehonadav Bekenstein
- The Solid-State Institute, Technion - Israel Institute of Technology, 32000 Haifa, Israel
- Department of Materials Science and Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel.
| |
Collapse
|
154
|
Ekanayaka TK, Richmond D, McCormick M, Nandyala SR, Helfrich HC, Sinitskii A, Pikal JM, Ilie CC, Dowben PA, Yost AJ. Surface Versus Bulk State Transitions in Inkjet-Printed All-Inorganic Perovskite Quantum Dot Films. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3956. [PMID: 36432242 PMCID: PMC9697151 DOI: 10.3390/nano12223956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/05/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
The anion exchange of the halides, Br and I, is demonstrated through the direct mixing of two pure perovskite quantum dot solutions, CsPbBr3 and CsPbI3, and is shown to be both facile and result in a completely alloyed single phase mixed halide perovskite. Anion exchange is also observed in an interlayer printing method utilizing the pure, unalloyed perovskite solutions and a commercial inkjet printer. The halide exchange was confirmed by optical absorption spectroscopy, photoluminescent spectroscopy, X-ray diffraction, and X-ray photoemission spectroscopy characterization and indicates that alloying is thermodynamically favorable, while the formation of a clustered alloy is not favored. Additionally, a surface-to-bulk photoemission core level transition is observed for the Cs 4d photoemission feature, which indicates that the electronic structure of the surface is different from the bulk. Time resolved photoluminescence spectroscopy indicates the presence of multiple excitonic decay features, which is argued to originate from states residing at surface and bulk environments.
Collapse
Affiliation(s)
- Thilini K. Ekanayaka
- Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Dylan Richmond
- Department of Physics, State University of New York-Oswego, Oswego, NY 13126, USA
| | - Mason McCormick
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Shashank R. Nandyala
- Department of Electrical and Computer Engineering, University of Wyoming, Laramie, WY 82071, USA
| | - Halle C. Helfrich
- Department of Physics, Oklahoma State University, Stillwater, OK 74078, USA
- Department of Physics, Pittsburg State University, Pittsburg, KS 66762, USA
| | - Alexander Sinitskii
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Jon M. Pikal
- Department of Electrical and Computer Engineering, University of Wyoming, Laramie, WY 82071, USA
| | - Carolina C. Ilie
- Department of Physics, State University of New York-Oswego, Oswego, NY 13126, USA
| | - Peter A. Dowben
- Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Andrew J. Yost
- Department of Physics, Oklahoma State University, Stillwater, OK 74078, USA
- Oklahoma Photovoltaic Research Institute, Oklahoma State University, Stillwater, OK 74078, USA
| |
Collapse
|
155
|
Mashiach R, Avram L, Bar-Shir A. Diffusion 19F-NMR of Nanofluorides: In Situ Quantification of Colloidal Diameters and Protein Corona Formation in Solution. NANO LETTERS 2022; 22:8519-8525. [PMID: 36255401 PMCID: PMC9650773 DOI: 10.1021/acs.nanolett.2c02994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 10/08/2022] [Indexed: 06/16/2023]
Abstract
The NMR-detectability of elements of organic ligands that stabilize colloidal inorganic nanocrystals (NCs) allow the study of their diffusion characteristics in solutions. Nevertheless, these measurements are sensitive to dynamic ligand exchange and often lead to overestimation of diffusion coefficients of dispersed colloids. Here, we present an approach for the quantitative assessment of the diffusion properties of colloidal NCs based on the NMR signals of the elements of their inorganic cores. Benefiting from the robust 19F-NMR signals of the fluorides in the core of colloidal CaF2 and SrF2, we show the immunity of 19F-diffusion NMR to dynamic ligand exchange and, thus, the ability to quantify, with high accuracy, the colloidal diameters of different types of nanofluorides in situ. With the demonstrated ability to characterize the formation of protein corona at the surface of nanofluorides, we envision that this study can be extended to additional formulations and applications.
Collapse
Affiliation(s)
- Reut Mashiach
- Department
of Molecular Chemistry and Materials Science and Department of
Chemical Research Support, Weizmann Institute
of Science, Rehovot, 7610001, Israel
| | - Liat Avram
- Department
of Molecular Chemistry and Materials Science and Department of
Chemical Research Support, Weizmann Institute
of Science, Rehovot, 7610001, Israel
| | - Amnon Bar-Shir
- Department
of Molecular Chemistry and Materials Science and Department of
Chemical Research Support, Weizmann Institute
of Science, Rehovot, 7610001, Israel
| |
Collapse
|
156
|
Pathipati SR, Shah MN, Akhil S, Mishra N. In situ synthesis of high-quantum-efficiency and stable bromide-based blue-emitting perovskite nanoplatelets. NANOSCALE ADVANCES 2022; 4:4766-4781. [PMID: 36381516 PMCID: PMC9642352 DOI: 10.1039/d2na00354f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
We present a facile synthetic approach for the growth of two-dimensional CsPbBr3 nanoplatelets (NPLs) in the temperature range of 50-80 °C via the vacuum-assisted low-temperature (VALT) method. In this method, we utilized the solubility of the PbBr2 precursor at temperatures high than the reaction temperature, thus making Br available during the reaction to form NPLs with fewer defects. The high chemical availability of Br during the reaction changes the growth dynamics and formation of highly crystalline nanoplatelets. Using this method, we have synthesized NPLs with an emission wavelength range of 450 to 485 nm that have high photoluminescence quantum yields (PLQY) from 80 to 100%. The synthesized NPLs retain their initial PLQY of about 80% after one month at ambient conditions. The formation of NPLs with fewer defects and enhanced radiative recombination was further confirmed by X-ray diffraction (XRD), reduced Urbach energy, time-resolved photocurrent measurements, X-ray photoelectron spectroscopy (XPS), and Fourier-transform infrared (FTIR) spectroscopy. Additionally, we utilized the synthesized NPLs for the fabrication of down-conversion light emitting diodes (LEDs), and the electroluminescence peak was barely shifted compared to the photoluminescence peak.
Collapse
Affiliation(s)
- Srinivasa Rao Pathipati
- Laboratory for Semiconductor Research, Department of Physics, School of Applied Science and Humanities, Vignan's Foundation for Science, Technology, and Research (Deemed University) Vadlamudi Guntur Andhra Pradesh India 522213
| | - Muhammad Naeem Shah
- College of Electronics and Information Engineering, Shenzhen University Shenzhen Guangdong P. R. China 518000
| | - Syed Akhil
- Department of Chemistry, SRM University - AP, Andhra Pradesh Neerukonda, Guntur Andhra Pradesh 522240 India
| | - Nimai Mishra
- Department of Chemistry, SRM University - AP, Andhra Pradesh Neerukonda, Guntur Andhra Pradesh 522240 India
| |
Collapse
|
157
|
Ryu HJ, Shin M, Park M, Lee JS. In Situ Tetraalkylammonium Ligand Engineering of Organic-Inorganic Hybrid Perovskite Nanoparticles for Enhancing Long-Term Stability and Optical Tunability. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:13448-13455. [PMID: 36288550 DOI: 10.1021/acs.langmuir.2c01888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Organic-inorganic hybrid perovskite nanoparticles (OIHP NPs) have attracted scientific attention owing to their efficient photoluminescence with optical tunability, which is highly advantageous for optoelectronic applications. However, the limited long-term stability of OIHP NPs has significantly hindered their practical application. Despite several synthetic strategies and encapsulation methods to stabilize OIHP NPs, complicated multi-step procedures are often required. In this study, we introduce an in situ ligand engineering method for stabilizing and controlling the optical properties of OIHP NPs using tetraalkylammonium (TAA) halides with various molecular structures at different concentrations. Our one-pot ligand engineering substantially enhanced the stability of the OIHP NPs without post-synthetic processes. Moreover, in certain cases, approximately 90% of the initial photoluminescence (PL) intensity was preserved even after a month under ambient conditions (room temperature, 20-50% relative humidity). To determine the role of ligand engineering in stabilizing the OIHP NPs, the surface binding properties of the TAA ligands were thoroughly analyzed using Raman spectroscopy. Specifically, the permanent positive charge of the TAA cations and consequent effective electrostatic interactions with the surfaces of the OIHP NPs are pivotal for preserving the initial PL intensity. Our investigation is beneficial for developing OIHP nanomaterials with improved stability and controlled photoluminescence for various optoelectronic applications, such as light-emitting devices, photosensitizers, photodetectors, photocatalysis, and solar cells.
Collapse
Affiliation(s)
- Han-Jung Ryu
- Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Mingyeong Shin
- Department of Chemistry, Dong-A University, 37 Nakdong-daero 550beon-gil, Saha-gu, Busan 49315, Republic of Korea
- Department of Chemistry, College of Natural Science, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea
| | - Myeongkee Park
- Department of Chemistry, College of Natural Science, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea
| | - Jae-Seung Lee
- Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| |
Collapse
|
158
|
Chevalier OJGL, Nakamuro T, Sato W, Miyashita S, Chiba T, Kido J, Shang R, Nakamura E. Precision Synthesis and Atomistic Analysis of Deep-Blue Cubic Quantum Dots Made via Self-Organization. J Am Chem Soc 2022; 144:21146-21156. [DOI: 10.1021/jacs.2c08227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Takayuki Nakamuro
- Department of Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Wataru Sato
- Department of Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Satoru Miyashita
- Department of Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Takayuki Chiba
- Graduate School of Organic Materials Science, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Junji Kido
- Graduate School of Organic Materials Science, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Rui Shang
- Department of Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Eiichi Nakamura
- Department of Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| |
Collapse
|
159
|
Romero Esquivel G, Toader V, Reven L, Kambhampati P. Ligand-flexible synthesis of strongly confined perovskite nanocrystals: a microwave synthetic approach. NANOSCALE 2022; 14:15789-15798. [PMID: 36250330 DOI: 10.1039/d2nr04597d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Perovskite nanocrystals (PNCs) and their strongly confined versions have traditionally been synthesized via hot injection methods. However, there is a pressing need for a new synthesis method that offers more flexible surface chemistry, improved optical properties, and greater sample stability. Here we explore and exploit the recently introduced microwave (MW) synthesis method, focusing on temperature and coating ligands, including a polymer ligand for which the hot injection method is unsuitable. The optimized microwave synthetic protocols produce PNCs with better exciton definition, lower polydispersity, and stronger ligand attachment than their hot injection counterparts. A variety of characterization techniques were employed to compare the properties of PNCs produced by the hot injection versus microwave methods. Insight into the molecular basis for the improved PNC properties was provided by FTIR and several NMR experiments that revealed the nature of the attachment of different ligands and their interactions with the PNCs. The overall results demonstrate that MW synthesis is a promising alternative to the HI method, particularly if smaller PNCs with strong quantum confinement are desired.
Collapse
Affiliation(s)
| | - Violeta Toader
- Department of Chemistry, McGill University, Montreal, Canada.
| | - Linda Reven
- Department of Chemistry, McGill University, Montreal, Canada.
| | | |
Collapse
|
160
|
Hsieh CW, Singh RK, Som S, Lu CH. Detection of Fe (III) using APTES-coated CsPbBr3–CsPb2Br5 perovskite quantum dots. CHEMICAL ENGINEERING JOURNAL ADVANCES 2022. [DOI: 10.1016/j.ceja.2022.100358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
161
|
Jin X, Ma K, Gao H. Tunable Luminescence and Enhanced Polar Solvent Resistance of Perovskite Nanocrystals Achieved by Surface-Initiated Photopolymerization. J Am Chem Soc 2022; 144:20411-20420. [DOI: 10.1021/jacs.2c08622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiuyu Jin
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Kangling Ma
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Haifeng Gao
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| |
Collapse
|
162
|
Feng X, Xu P, Liu J, Zhao X, Cao J, Liu J. Stable Core-Shell Structure Nanocrystals of Cs 4PbBr 6-Zn(moi) 2 Achieved by an In Situ Surface Reconstruction Strategy for Optical Anticounterfeiting. Inorg Chem 2022; 61:17590-17598. [PMID: 36272156 DOI: 10.1021/acs.inorgchem.2c02632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Zero-dimensional Cs4PbBr6 nanocrystals (NCs) possess attractive photoluminescence (PL) properties and feature facile chemical synthesis, making them promising for application in luminescent materials. However, Cs4PbBr6 remains sensitive to polar solvents and thermal stimuli because of soft ionic nature of Cs4PbBr6 and dynamic behavior of surface ligands. Herein, a strategy controlled by an in situ surface coordination reaction is developed to fabricate stable NCs with a Cs4PbBr6-Zn(moi)2 core-shell structure. It was found that the Cs4PbBr6 surface regulated by the use of 2-mercaptoimidazole (called moi) and the coordination between the -NH group of moi and Zn2+ is critical for the formation of Cs4PbBr6-Zn(moi)2 core-shell NCs. Meanwhile, the thickness of the Zn(moi)2 shell can be facilely controlled by the growth time because of the solubility of moi and Zn(OAc)2·2H2O in ethyl acetate. Compared to bare Cs4PbBr6, Cs4PbBr6-Zn(moi)2 NCs exhibited highly improved polar solvent resistance and thermal stability. By combining the sensitivity of Cs4PbBr6 and the stability of Cs4PbBr6-Zn(moi)2, we used two NCs as PL security inks to fabricate optical anticounterfeiting labels. Thus, the disposable or reusable optical anticounterfeiting label is achieved by changing the external dual-stimuli. This work provides a novel strategy to enhance the stability of Cs4PbBr6 and develop its potential interest for application in anticounterfeiting technologies.
Collapse
Affiliation(s)
- Xiaoxia Feng
- Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education, Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
| | - Pengxiao Xu
- Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education, Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
| | - Jinli Liu
- Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education, Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
| | - Xiyue Zhao
- Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education, Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
| | - Jing Cao
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jiacheng Liu
- Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education, Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
| |
Collapse
|
163
|
Abstract
As an emerging new class of semiconductor nanomaterials, halide perovskite (ABX3, X = Cl, Br, or I) nanocrystals (NCs) are attracting increasing attention owing to their great potential in optoelectronics and beyond. This field has experienced rapid breakthroughs over the past few years. In this comprehensive review, halide perovskite NCs that are either freestanding or embedded in a matrix (e.g., perovskites, metal-organic frameworks, glass) will be discussed. We will summarize recent progress on the synthesis and post-synthesis methods of halide perovskite NCs. Characterizations of halide perovskite NCs by using a variety of techniques will be present. Tremendous efforts to tailor the optical and electronic properties of halide perovskite NCs in terms of manipulating their size, surface, and component will be highlighted. Physical insights gained on the unique optical and charge-carrier transport properties will be provided. Importantly, the growing potential of halide perovskite NCs for advancing optoelectronic applications and beyond including light-emitting devices (LEDs), solar cells, scintillators and X-ray imaging, lasers, thin-film transistors (TFTs), artificial synapses, and light communication will be extensively discussed, along with prospecting their development in the future.
Collapse
|
164
|
Akhil S, Biswas S, Palabathuni M, Singh R, Mishra N. Amine-Free Synthetic Route: An Emerging Approach to Making High-Quality Perovskite Nanocrystals for Futuristic Applications. J Phys Chem Lett 2022; 13:9480-9493. [PMID: 36200748 DOI: 10.1021/acs.jpclett.2c02403] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
In recent years, colloidal cesium lead halide (CsPbX3) perovskite nanocrystals (PNCs) have attracted significant attention from researchers due to their unique optical properties and potential use in optoelectronic applications. In colloidal synthesis, oleic acid and oleylamine are commonly used as surface-capping ligands. Although oleylamine plays a crucial role in maintaining the colloidal stability and surface passivation of PNCs, its dynamic equilibrium with oleic acid leads to the formation of labile oleylammonium, which pulls halides from the surface of PNCs and thus degrades the crystals. In this Perspective, we summarize the various approaches for eliminating the amines to make high-quality, photostable, and amine-free CsPbX3 PNCs. In addition, we look over the prospects of these PNCs regarding stability in different environmental conditions, photoluminescence properties, and optoelectronic device performance. This perspective will give a broad overview of amine-free PNCs starting from their synthesis, challenges, and optoelectronic properties to their future prospects.
Collapse
Affiliation(s)
- Syed Akhil
- Department of Chemistry, SRM University, Andhra Pradesh, Neerukonda, Guntur District, Mangalagiri, Andhra Pradesh 522240, India
| | - Subarna Biswas
- Department of Chemistry, SRM University, Andhra Pradesh, Neerukonda, Guntur District, Mangalagiri, Andhra Pradesh 522240, India
| | - Manoj Palabathuni
- Department of Chemistry, SRM University, Andhra Pradesh, Neerukonda, Guntur District, Mangalagiri, Andhra Pradesh 522240, India
| | - Rahul Singh
- Department of Chemistry, SRM University, Andhra Pradesh, Neerukonda, Guntur District, Mangalagiri, Andhra Pradesh 522240, India
| | - Nimai Mishra
- Department of Chemistry, SRM University, Andhra Pradesh, Neerukonda, Guntur District, Mangalagiri, Andhra Pradesh 522240, India
| |
Collapse
|
165
|
Yao J, Xu L, Wang S, Yang Z, Song J. Recent progress of single-halide perovskite nanocrystals for advanced displays. NANOSCALE 2022; 14:13990-14007. [PMID: 36125019 DOI: 10.1039/d2nr03872b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Light-emitting diodes based on lead halide perovskite nanocrystals (LHP NCs) have shown an astonishing increase in efficiency in just several years of academic research, reaching high external quantum efficiencies exceeding 20%. The extensive color-tunability and narrow emission bandwidth of LHP NCs, in particular, are of great importance in the creation of the next generation of ultra-high-definition displays, as defined by the Rec. 2020 standard recommendation. In fact, whereas the colour of LHP NCs can be easily tuned by the compositions of halogens, the ion migration in mixed-halide perovskites under the electric field will seriously affect the spectral stability and operational lifetimes of perovskite light-emitting diodes (PeLEDs). Therefore, it is essential to realize efficient colour-saturated PeLEDs based on single-halide perovskite NCs. In this review, we focus on the recent progress in LHP NC-based PeLEDs and highlight the strategy of tuning the spectral emission based on quantum confinement or cation alloying/doping in single-halide perovskite NCs. Finally, we will give an outlook on future research avenues for preparing high-efficiency pure green, red and blue PeLEDs based on single-halide perovskite NCs.
Collapse
Affiliation(s)
- Jisong Yao
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China.
| | - Leimeng Xu
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China.
| | - Shalong Wang
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China.
| | - Zhi Yang
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China.
| | - Jizhong Song
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China.
| |
Collapse
|
166
|
Xue W, Zhang X, Zhu W, Zhang X, Wang W, Peng L, Ma X, Li Y. Large-scale Heterogeneous Synthesis of Monodisperse High Performance Colloidal CsPbBr3 Nanocrystals. FUNDAMENTAL RESEARCH 2022. [DOI: 10.1016/j.fmre.2022.05.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
|
167
|
Xu Y, Hu X, Chen H, Tang H, Hu Q, Chen T, Jiang W, Wang L, Jiang W. In situ passivation of Pb 0 traps by fluoride acid-based ionic liquids enables enhanced emission and stability of CsPbBr 3 nanocrystals for efficient white light-emitting diodes. NANOSCALE 2022; 14:13779-13789. [PMID: 36102672 DOI: 10.1039/d2nr03861g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A great hurdle restricting the optoelectronic applications of cesium lead halide perovskite (CsPbX3) nanocrystals (NCs) is due to the uncoordinated lead atoms (Pb0) on the surface, where most attempts to address the challenges in the literature depend on complicated post-treatment processes. Here we report a simple in situ surface engineering strategy to obtain highly fluorescent and stable perovskite NCs, wherein the introduction of the multifunctional additive 1-butyl-3-methyl-imidazolium tetrafluoroborate ([Bmim]BF4) can significantly eliminate the Pb0 traps. The photoluminescence quantum yield (PLQY) of the as-synthesized NCs was improved from 63.82% to 94.63% due to the good passivation of the surface defects. We also confirm the universality of this in situ passivation pathway to remove Pb0 deep traps by using fluoride acid-based ionic liquids (ILs). Due to the high hydrophobicity of the cations of ILs, the as-prepared CsPbBr3 NCs exhibit robust water resistance stability, maintaining 67.5% of the initial photoluminescence (PL) intensity after immersion in water for 21 days. A white light emitting diode (LED), assembled by mixing the as-synthesized CsPbBr3 NCs and red K2SiF6:Mn4+ phosphors onto a blue chip, exhibits high luminous efficiency (100.07 lm W-1) and wide color gamut (140.64% of the National Television System Committee (NTSC) standard). This work provides a promising and facile technique to eliminate the Pb0 traps and improve the optical performance and stability of halide perovskite NCs, facilitating their applications in optoelectronic fields.
Collapse
Affiliation(s)
- Yanqiao Xu
- National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen Ceramic University, Jingdezhen 333000, China
- School of Material Science and Engineering, Jingdezhen Ceramic University, Jingdezhen 333000, China
| | - Xiaobo Hu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Haijie Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Huidong Tang
- School of Material Science and Engineering, Jingdezhen Ceramic University, Jingdezhen 333000, China
| | - Qing Hu
- School of Material Science and Engineering, Jingdezhen Ceramic University, Jingdezhen 333000, China
| | - Ting Chen
- National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen Ceramic University, Jingdezhen 333000, China
| | - Weihui Jiang
- National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen Ceramic University, Jingdezhen 333000, China
- School of Material Science and Engineering, Jingdezhen Ceramic University, Jingdezhen 333000, China
| | - Lianjun Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Wan Jiang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
| |
Collapse
|
168
|
Bhatia H, Ghosh B, Debroye E. Colloidal FAPbBr 3 perovskite nanocrystals for light emission: what's going on? JOURNAL OF MATERIALS CHEMISTRY. C 2022; 10:13437-13461. [PMID: 36324302 PMCID: PMC9521414 DOI: 10.1039/d2tc01373h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 05/06/2022] [Indexed: 06/16/2023]
Abstract
Semiconducting nanomaterials have been widely explored in diverse optoelectronic applications. Colloidal lead halide perovskite nanocrystals (NCs) have recently been an excellent addition to the field of nanomaterials, promising an enticing building block in the field of light emission. In addition to the notable optoelectronic properties of perovskites, the colloidal NCs exhibit unique size-dependent optical properties due to the quantum size effect, which makes them highly attractive for light-emitting diodes (LEDs). In the past few years, perovskite-based LEDs (PeLEDs) have demonstrated a meteoritic rise in their external quantum efficiency (EQE) values, reaching over 20% so far. Among various halide perovskite compositions, FAPbBr3 and its variants remain one of the most interesting and sought-after compounds for green light emission. This review focuses on recent progress in the design and synthesis protocols of colloidal FAPbBr3 NCs and the emerging concepts in tailoring their surface chemistry. The structural and physicochemical features of lead halide perovskites along with a comprehensive discussion on their defect-tolerant properties are briefly outlined. Later, the prevalent synthesis, ligand, and compositional engineering strategies to boost the stability and photoluminescence quantum yield (PLQY) of FAPbBr3 NCs are extensively discussed. Finally, the fundamental concepts and recent progress on FAPbBr3-based LEDs, followed by a discussion of the challenges and prospects that are on the table for this enticing class of perovskites, are reviewed.
Collapse
Affiliation(s)
- Harshita Bhatia
- Department of Chemistry, KU Leuven Celestijnenlaan 200F B-3001 Leuven Belgium
| | - Biplab Ghosh
- cMACS, Department of Microbial and Molecular Systems, KU Leuven Celestijnenlaan 200F B-3001 Leuven Belgium
| | - Elke Debroye
- Department of Chemistry, KU Leuven Celestijnenlaan 200F B-3001 Leuven Belgium
| |
Collapse
|
169
|
Chen R, Liu M, Wang M, Zhang Y, Shan B, Cao K. Acid-mediated phase transition synthesis of stable nanocrystals for high-power LED backlights. NANOSCALE 2022; 14:13628-13638. [PMID: 36093742 DOI: 10.1039/d2nr03431j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Perovskite nanocrystals (PNCs) have excellent optical and optoelectronic properties, but their intrinsic instability hampers their practical applications. Herein, stable CsPbBr3 nanocrystals (NCs) are fabricated with triethylaluminium (TMA, a Lewis acid) and hydrobromic acid by the co-assisted transformation of Cs4PbBr6 NCs. TMA forms a cross-linked alumina (AlOx) encapsulation layer on the nanocrystal surface to suppress the deformation and ion migration. The introduction of hydrobromic acid acts as a binding ligand, and the acidified reaction environment provides conditions for the water-triggered phase transformation of Cs4PbBr6 NCs into CsPbBr3 NCs. The synergistic effect of TMA and hydrobromic acid improves the stability of CsPbBr3 NCs. The obtained CsPbBr3 NC film maintains a high photoluminescence (PL) intensity after immersion in water. When stored in the atmosphere for over 30 days, the PL intensity of the CsPbBr3 NC film hardly decreases. The proposed acid co-assisted phase transformation strategy provides a new avenue for the stabilization of PNCs which exhibits wider application prospects in backlight displays.
Collapse
Affiliation(s)
- Rong Chen
- State Key Laboratory of Digital Manufacturing Equipment and Technology, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Hubei 430074, China.
| | - Mengjia Liu
- State Key Laboratory of Digital Manufacturing Equipment and Technology, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Hubei 430074, China.
| | - Min Wang
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Hubei 430074, China
| | - Yinghao Zhang
- State Key Laboratory of Digital Manufacturing Equipment and Technology, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Hubei 430074, China.
| | - Bin Shan
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Hubei 430074, China
| | - Kun Cao
- State Key Laboratory of Digital Manufacturing Equipment and Technology, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Hubei 430074, China.
| |
Collapse
|
170
|
Zhan Y, Liu Y, Zhang A, Yang P. Stable and Bright CsPbX 3 Nanocrystals in Metal-Organic Frameworks for White Light-Emitting Diodes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:11121-11129. [PMID: 36018291 DOI: 10.1021/acs.langmuir.2c02054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The stability of metal halide perovskite (CsPbX3, X = Cl, Br, and I) nanocrystals (NCs) is crucial for their practical applications. In this paper, perovskite NCs were synthesized in situ in lead-based metal-organic frameworks (Pb-MOFs: [Pb2(1,3,5-HBTC)2(H2O)4]·H2O), and we obtained stable and bright luminescence composites with different colors. Namely, CsPbBr3@Pb-MOF composites were created by the in situ growth of CsPbBr3 crystals (NCs) on Pb-MOF, which had high ion resistance, bright photoluminescence (PL), and excellent stability. The composites still had bright luminescence after 11 months of storage. The PL intensity of green-emitting CsPbBr3@Pb-MOF composites was increased compared with as-prepared CsPbBr3 NCs. Bright and stable blue- and red-emitting CsPbX3@Pb-MOF composites were obtained by adjusting the amount of PbX2 (X = Cl, Br, and I) in the synthesis process. These CsPbX3 NCs were homogeneously distributed in Pb-MOF substrates. The growth of CsPbX3 NCs in Pb-MOFs prevented NC aggregation and decreased surface defects against nonradiative recombination during emitting. Thus, the PL lifetime and stability were improved. Furthermore, white light-emission diodes were prepared using three color CsPbX3@Pb-MOF composites with Commission Internationale de I'Eclairage color coordinates of (0.296, 0.316). This result provided an efficient way to overcome the limitation of chemical solution synthesis and improve the stability of CsPbX3 NCs.
Collapse
Affiliation(s)
- Yan Zhan
- School of Material Science and Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Yanping Liu
- School of Material Science and Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Aiyu Zhang
- School of Material Science and Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Ping Yang
- School of Material Science and Engineering, University of Jinan, Jinan 250022, P. R. China
| |
Collapse
|
171
|
Cai Y, Li W, Tian D, Shi S, Chen X, Gao P, Xie R. Organic Sulfonium‐Stabilized High‐Efficiency Cesium or Methylammonium Lead Bromide Perovskite Nanocrystals. Angew Chem Int Ed Engl 2022; 61:e202209880. [DOI: 10.1002/anie.202209880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Yuting Cai
- College of Materials and Fujian Key Laboratory of Materials Genome Xiamen University Xiamen 361005 China
- College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Wenbo Li
- Laboratory of Advanced Functional Materials Xiamen Institute of Rare Earth Materials Haixi Institute Chinese Academy of Sciences Xiamen 361005 China
| | - Dongjie Tian
- College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Shuchen Shi
- College of Materials and Fujian Key Laboratory of Materials Genome Xiamen University Xiamen 361005 China
| | - Xi Chen
- College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Peng Gao
- Laboratory of Advanced Functional Materials Xiamen Institute of Rare Earth Materials Haixi Institute Chinese Academy of Sciences Xiamen 361005 China
| | - Rong‐Jun Xie
- College of Materials and Fujian Key Laboratory of Materials Genome Xiamen University Xiamen 361005 China
- State Key Laboratory of Physical Chemistry of Solid Surfaces Xiamen 361005 China
| |
Collapse
|
172
|
Cueto C, Hu W, Ribbe A, Bolduc K, Emrick T. Polystyrene‐based Macromolecular Ammonium Halides for Tuning Color and Exchange Kinetics of Perovskite Nanocrystals. Angew Chem Int Ed Engl 2022; 61:e202207126. [DOI: 10.1002/anie.202207126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Christopher Cueto
- Department of Polymer Science & Engineering University of Massachusetts Conte Center for Polymer Research 120 Governors Dr Amherst MA 01003 USA
| | - Weiguo Hu
- Department of Polymer Science & Engineering University of Massachusetts Conte Center for Polymer Research 120 Governors Dr Amherst MA 01003 USA
| | - Alexander Ribbe
- Department of Polymer Science & Engineering University of Massachusetts Conte Center for Polymer Research 120 Governors Dr Amherst MA 01003 USA
| | - Kimberly Bolduc
- Department of Chemistry University of Massachusetts Physical Sciences Building 690 North Pleasant St Amherst MA 01003 USA
| | - Todd Emrick
- Department of Polymer Science & Engineering University of Massachusetts Conte Center for Polymer Research 120 Governors Dr Amherst MA 01003 USA
| |
Collapse
|
173
|
Akkerman QA, Nguyen TPT, Boehme SC, Montanarella F, Dirin DN, Wechsler P, Beiglböck F, Rainò G, Erni R, Katan C, Even J, Kovalenko MV. Controlling the nucleation and growth kinetics of lead halide perovskite quantum dots. Science 2022; 377:1406-1412. [PMID: 36074820 DOI: 10.1126/science.abq3616] [Citation(s) in RCA: 75] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Colloidal lead halide perovskite (LHP) nanocrystals are of interest as photoluminescent quantum dots (QDs) whose properties depend on the size and shape. They are normally synthesized on subsecond time scales through hard-to-control ionic metathesis reactions. We report a room-temperature synthesis of monodisperse, isolable spheroidal APbBr3 QDs (A=Cs, formamidinium, methylammonium) that are size-tunable from 3 to over 13 nanometers. The kinetics of both nucleation and growth are temporally separated and drastically slowed down by the intricate equilibrium between the precursor (PbBr2) and the A[PbBr3] solute, with the latter serving as a monomer. QDs of all these compositions exhibit up to four excitonic transitions in their linear absorption spectra, and we demonstrate that the size-dependent confinement energy for all transitions is independent of the A-site cation.
Collapse
Affiliation(s)
- Quinten A Akkerman
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland.,Empa-Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, CH-8600, Switzerland
| | - Tan P T Nguyen
- Univ Rennes, ENSCR, INSA Rennes, CNRS, ISCR - UMR 6226, F-35000 Rennes, France
| | - Simon C Boehme
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland.,Empa-Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, CH-8600, Switzerland
| | - Federico Montanarella
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland.,Empa-Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, CH-8600, Switzerland
| | - Dmitry N Dirin
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland.,Empa-Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, CH-8600, Switzerland
| | - Philipp Wechsler
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland
| | - Finn Beiglböck
- Empa-Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, CH-8600, Switzerland
| | - Gabriele Rainò
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland.,Empa-Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, CH-8600, Switzerland
| | - Rolf Erni
- Electron Microscopy Center, Empa - Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland
| | - Claudine Katan
- Univ Rennes, ENSCR, INSA Rennes, CNRS, ISCR - UMR 6226, F-35000 Rennes, France
| | - Jacky Even
- Univ Rennes, INSA Rennes, CNRS, Institut FOTON - UMR 6082, F-35000 Rennes, France
| | - Maksym V Kovalenko
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland.,Empa-Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, CH-8600, Switzerland
| |
Collapse
|
174
|
Guan X, Lei Z, Yu X, Lin CH, Huang JK, Huang CY, Hu L, Li F, Vinu A, Yi J, Wu T. Low-Dimensional Metal-Halide Perovskites as High-Performance Materials for Memory Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203311. [PMID: 35989093 DOI: 10.1002/smll.202203311] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 07/05/2022] [Indexed: 06/15/2023]
Abstract
Metal-halide perovskites have drawn profuse attention during the past decade, owing to their excellent electrical and optical properties, facile synthesis, efficient energy conversion, and so on. Meanwhile, the development of information storage technologies and digital communications has fueled the demand for novel semiconductor materials. Low-dimensional perovskites have offered a new force to propel the developments of the memory field due to the excellent physical and electrical properties associated with the reduced dimensionality. In this review, the mechanisms, properties, as well as stability and performance of low-dimensional perovskite memories, involving both molecular-level perovskites and structure-level nanostructures, are comprehensively reviewed. The property-performance correlation is discussed in-depth, aiming to present effective strategies for designing memory devices based on this new class of high-performance materials. Finally, the existing challenges and future opportunities are presented.
Collapse
Affiliation(s)
- Xinwei Guan
- School of Materials Science and Engineering, University of New South Wales (UNSW), Sydney, New South Wales, 2052, Australia
- Global Innovative Centre for Advanced Nanomaterials, School of Engineering, The University of Newcastle, Callaghan, New South Wales, 2308, Australia
| | - Zhihao Lei
- Global Innovative Centre for Advanced Nanomaterials, School of Engineering, The University of Newcastle, Callaghan, New South Wales, 2308, Australia
| | - Xuechao Yu
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nanotech and Nano-bionics, Chinese Academy of Science, 398 Ruoshui Road, Suzhou, 215123, China
| | - Chun-Ho Lin
- School of Materials Science and Engineering, University of New South Wales (UNSW), Sydney, New South Wales, 2052, Australia
| | - Jing-Kai Huang
- School of Materials Science and Engineering, University of New South Wales (UNSW), Sydney, New South Wales, 2052, Australia
| | - Chien-Yu Huang
- School of Materials Science and Engineering, University of New South Wales (UNSW), Sydney, New South Wales, 2052, Australia
| | - Long Hu
- School of Materials Science and Engineering, University of New South Wales (UNSW), Sydney, New South Wales, 2052, Australia
| | - Feng Li
- School of Physics, Nano Institute, ACMM, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Ajayan Vinu
- Global Innovative Centre for Advanced Nanomaterials, School of Engineering, The University of Newcastle, Callaghan, New South Wales, 2308, Australia
| | - Jiabao Yi
- Global Innovative Centre for Advanced Nanomaterials, School of Engineering, The University of Newcastle, Callaghan, New South Wales, 2308, Australia
| | - Tom Wu
- School of Materials Science and Engineering, University of New South Wales (UNSW), Sydney, New South Wales, 2052, Australia
| |
Collapse
|
175
|
Li H, Yin W, Ng CK, Huang R, Du S, Sharma M, Li B, Yuan G, Michalska M, Matta SK, Chen Y, Chandrasekaran N, Russo S, Cameron NR, Funston AM, Jasieniak JJ. Macroporous perovskite nanocrystal composites for ultrasensitive copper ion detection. NANOSCALE 2022; 14:11953-11962. [PMID: 35899800 DOI: 10.1039/d2nr02737b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Accumulation of heavy metal ions, including copper ions (Cu2+), presents a serious threat to human health and to the environment. A substantial amount of research has focused on detecting such species in aqueous solutions. However, progress towards ultrasensitive and easy-to-use sensors for non-aqueous solutions is still limited. Here, we focus on the detection of copper species in hexane, realising ultra-sensitive detection through a fluorescence-based approach. To achieve this, a novel macroporous composite material has been developed featuring luminescent CsPbBr3 nanocrystals (NCs) chemically adhered to a polymerized high internal phase emulsion (polyHIPE) substrate through surface thiol groups. Due to this thiol functionality, sub-monolayer NC formation is realised, which also renders outstanding stability of the composite in the ambient environment. Copper detection is achieved through a direct solution based immersion of the CsPbBr3-(SH)polyHIPE composite, which results in concentration-dependent quenching of the NC photoluminescence. This newly developed sensor has a limit of detection (LOD) for copper as low as 1 × 10-16 M, and a wide operating window spanning 10-2 to 10-16 M. Moreover, the composite exhibits excellent selectivity among different transition metals.
Collapse
Affiliation(s)
- Hanchen Li
- Australian Research Council Centre of Excellence in Exciton Science, Australia.
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria, 3800, Australia
| | - Wenping Yin
- Australian Research Council Centre of Excellence in Exciton Science, Australia.
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria, 3800, Australia
| | - Chun Kiu Ng
- Australian Research Council Centre of Excellence in Exciton Science, Australia.
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria, 3800, Australia
| | - Ruoxi Huang
- Australian Research Council Centre of Excellence in Exciton Science, Australia.
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria, 3800, Australia
| | - Shengrong Du
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria, 3800, Australia
| | - Manoj Sharma
- Australian Research Council Centre of Excellence in Exciton Science, Australia.
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria, 3800, Australia
| | - Bin Li
- Australian Research Council Centre of Excellence in Exciton Science, Australia.
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria, 3800, Australia
| | - Gangcheng Yuan
- Australian Research Council Centre of Excellence in Exciton Science, Australia.
- School of Chemistry, Monash University, Clayton, Victoria, 3800, Australia
| | - Monika Michalska
- Australian Research Council Centre of Excellence in Exciton Science, Australia.
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria, 3800, Australia
| | - Sri Kasi Matta
- Australian Research Council Centre of Excellence in Exciton Science, Australia.
- School of Science, RMIT University, Melbourne, 3000, Australia
| | - Yu Chen
- Monash Centre for Electron Microscopy (MCEM), Monash University, Clayton, Victoria, 3800, Australia
| | - Naresh Chandrasekaran
- Australian Research Council Centre of Excellence in Exciton Science, Australia.
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria, 3800, Australia
| | - Salvy Russo
- Australian Research Council Centre of Excellence in Exciton Science, Australia.
- School of Science, RMIT University, Melbourne, 3000, Australia
| | - Neil R Cameron
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria, 3800, Australia
- School of Engineering, University of Warwick, Coventry CV4 7AL, U.K
| | - Alison M Funston
- Australian Research Council Centre of Excellence in Exciton Science, Australia.
- School of Chemistry, Monash University, Clayton, Victoria, 3800, Australia
| | - Jacek J Jasieniak
- Australian Research Council Centre of Excellence in Exciton Science, Australia.
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria, 3800, Australia
| |
Collapse
|
176
|
Pan Q, Hu J, Fu J, Lin Y, Zou C, Di D, Wang Y, Zhang Q, Cao M. Ultrahigh Stability of Perovskite Nanocrystals by Using Semiconducting Molecular Species for Displays. ACS NANO 2022; 16:12253-12261. [PMID: 35913128 DOI: 10.1021/acsnano.2c03062] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The instability of perovskite nanocrystals (NCs) to moisture, heat, and blue light severely hinders their commercial applications in quantum dot displays. Here, organic semiconducting molecules are introduced onto CsPbBr3 NCs, and the as-obtained CsPbBr3 NCs have a high photoluminescent quantum yield (PLQY) of 82% and extremely high stability in harsh commercial accelerated operational stability tests (such as high temperature (85 °C) and high humidity (85%)). The products can survive and maintain more than 80% of the initial PL intensity value under high temperature, high humidity, and long-term blue light irradiation for hundreds to thousands of hours. They are among the most stable perovskite NCs and even superior to those encapsulated by inert shells and commercial green-emissive CdSe@ZnS quantum dots (QDs). The mechanism of the exceptional stability has been proposed, mainly including the strong interaction and moderate photocarrier transfer between the quasi type II heterostructure formed by the molecule and CsPbBr3. By using these stable CsPbBr3 NCs, a QD-enhanced liquid crystal display prototype has been successfully fabricated with a wide color gamut. This work provides understandings on the functionality of ligands in perovskite fields and a promising prospect in perovskite-based display technologies.
Collapse
Affiliation(s)
- Qi Pan
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Jingjing Hu
- Suzhou Xingshuo Nanotech Co., Ltd. (Mesolight), 99 Jinjihu Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Jie Fu
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Yi Lin
- Suzhou Xingshuo Nanotech Co., Ltd. (Mesolight), 99 Jinjihu Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Chen Zou
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Hangzhou, 310027, Zhejiang, People's Republic of China
| | - Dawei Di
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Hangzhou, 310027, Zhejiang, People's Republic of China
| | - Yunjun Wang
- Suzhou Xingshuo Nanotech Co., Ltd. (Mesolight), 99 Jinjihu Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Qiao Zhang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Muhan Cao
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, People's Republic of China
| |
Collapse
|
177
|
Mourdikoudis S, Menelaou M, Fiuza-Maneiro N, Zheng G, Wei S, Pérez-Juste J, Polavarapu L, Sofer Z. Oleic acid/oleylamine ligand pair: a versatile combination in the synthesis of colloidal nanoparticles. NANOSCALE HORIZONS 2022; 7:941-1015. [PMID: 35770698 DOI: 10.1039/d2nh00111j] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A variety of colloidal chemical approaches has been developed in the last few decades for the controlled synthesis of nanostructured materials in either water or organic solvents. Besides the precursors, the solvents, reducing agents, and the choice of surfactants are crucial for tuning the composition, morphology and other properties of the resulting nanoparticles. The ligands employed include thiols, amines, carboxylic acids, phosphines and phosphine oxides. Generally, adding a single ligand to the reaction mixture is not always adequate to yield the desired features. In this review, we discuss in detail the role of the oleic acid/oleylamine ligand pair in the chemical synthesis of nanoparticles. The combined use of these ligands belonging to two different categories of molecules aims to control the size and shape of nanoparticles and prevent their aggregation, not only during their synthesis but also after their dispersion in a carrier solvent. We show how the different binding strengths of these two molecules and their distinct binding modes on specific facets affect the reaction kinetics toward the production of nanostructures with tailored characteristics. Additional functions, such as the reducing function, are also noted, especially for oleylamine. Sometimes, the carboxylic acid will react with the alkylamine to form an acid-base complex, which may serve as a binary capping agent and reductant; however, its reducing capacity may range from lower to much lower than that of oleylamine. The types of nanoparticles synthesized in the simultaneous presence of oleic acid and oleylamine and discussed herein include metal oxides, metal chalcogenides, metals, bimetallic structures, perovskites, upconversion particles and rare earth-based materials. Diverse morphologies, ranging from spherical nanoparticles to anisotropic, core-shell and hetero-structured configurations are presented. Finally, the relation between tuning the resulting surface and volume nanoparticle properties and the relevant applications is highlighted.
Collapse
Affiliation(s)
- Stefanos Mourdikoudis
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technicka 5, 16628 - Prague 6, Czech Republic.
| | - Melita Menelaou
- Department of Chemical Engineering, Faculty of Geotechnical Sciences and Environmental Management, Cyprus University of Technology, 3036 Limassol, Cyprus.
| | - Nadesh Fiuza-Maneiro
- CINBIO, Universidade de Vigo, Materials Chemistry and Physics, Department of Physical Chemistry, Campus Universitario Lagoas Marcosende, 36310 Vigo, Spain.
| | - Guangchao Zheng
- School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450001, China
| | - Shuangying Wei
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technicka 5, 16628 - Prague 6, Czech Republic.
| | - Jorge Pérez-Juste
- CINBIO, Universidade de Vigo, Departamento de Química Física, Campus Universitario As Lagoas, Marcosende, 36310 Vigo, Spain
- Galicia Sur Health Research Institute (IIS Galicia Sur), 36310 Vigo, Spain
| | - Lakshminarayana Polavarapu
- CINBIO, Universidade de Vigo, Materials Chemistry and Physics, Department of Physical Chemistry, Campus Universitario Lagoas Marcosende, 36310 Vigo, Spain.
| | - Zdeněk Sofer
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technicka 5, 16628 - Prague 6, Czech Republic.
| |
Collapse
|
178
|
Guo Y, Chen J, Zhao Y, Lou Y. In-Situ Anchoring Pb-Free Cs 3 Bi 2 Br 9 @BiOBr Quantum Dots on NH x -Rich Silica with Enhanced Blue Emission and Satisfactory Stability for Photocatalytic Toluene Oxidation. CHEMSUSCHEM 2022; 15:e202200793. [PMID: 35674682 DOI: 10.1002/cssc.202200793] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/24/2022] [Indexed: 06/15/2023]
Abstract
All-inorganic metal halide perovskite quantum dots (QDs) have attracted attention from researchers with their fascinating optoelectronic properties. However, blue-emitting perovskite QDs typically have low photoluminescence quantum yield (PLQY). For potential commercial applications, it is preferable to replace Pb with an element having low toxicity. Here, Pb-free Cs3 Bi2 Br9 @BiOBr perovskite QDs were anchored on the surface of NHx -rich monodisperse silica (A-SiO2 ) via N-Bi chemical bonding to isolate QDs from each other, thus enhancing efficient surface passivation and suppressing optical decay. Compared to unanchored QDs, Cs3 Bi2 Br9 @BiOBr QDs/A-SiO2 composites exhibited significantly enhanced blue emission performance, the PLQY of which increased from 16.62 % to 77.26 %, in addition to good water and environmental stability. Finally, the novel composites as photocatalysts were used to drive the oxidation of toluene, a template reaction of C(sp3 )-H bond activation and demonstrated astonishing conversion rates (4317 μmol g-1 h-1 ) with high selectivity (around 87 %).
Collapse
Affiliation(s)
- Yanmei Guo
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu, 211189, P.R. China
| | - Jinxi Chen
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu, 211189, P.R. China
| | - Yixin Zhao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P.R. China
| | - Yongbing Lou
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu, 211189, P.R. China
| |
Collapse
|
179
|
Wang Y, Zhao H, Piotrowski M, Han X, Ge Z, Dong L, Wang C, Pinisetty SK, Balguri PK, Bandela AK, Thumu U. Cesium Lead Iodide Perovskites: Optically Active Crystal Phase Stability to Surface Engineering. MICROMACHINES 2022; 13:mi13081318. [PMID: 36014240 PMCID: PMC9414704 DOI: 10.3390/mi13081318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/07/2022] [Accepted: 08/10/2022] [Indexed: 05/04/2023]
Abstract
Among perovskites, the research on cesium lead iodides (CsPbI3) has attracted a large research community, owing to their all-inorganic nature and promising solar cell performance. Typically, the CsPbI3 solar cell devices are prepared at various heterojunctions, and working at fluctuating temperatures raises questions on the material stability-related performance of such devices. The fundamental studies reveal that their poor stability is due to a lower side deviation from Goldschmidt's tolerance factor, causing weak chemical interactions within the crystal lattice. In the case of organic-inorganic hybrid perovskites, where their stability is related to the inherent chemical nature of the organic cations, which cannot be manipulated to improve the stability drastically whereas the stability of CsPbI3 is related to surface and lattice engineering. Thus, the challenges posed by CsPbI3 could be overcome by engineering the surface and inside the CsPbI3 crystal lattice. A few solutions have been proposed, including controlled crystal sizes, surface modifications, and lattice engineering. Various research groups have been working on these aspects and had accumulated a rich understanding of these materials. In this review, at first, we survey the fundamental aspects of CsPbI3 polymorphs structure, highlighting the superiority of CsPbI3 over other halide systems, stability, the factors (temperature, polarity, and size influence) leading to their phase transformations, and electronic band structure along with the important property of the defect tolerance nature. Fortunately, the factors stabilizing the most effective phases are achieved through a size reduction and the efficient surface passivation on the delicate CsPbI3 nanocrystal surfaces. In the following section, we have provided the up-to-date surface passivating methods to suppress the non-radiative process for near-unity photoluminescence quantum yield, while maintaining their optically active phases, especially through molecular links (ligands, polymers, zwitterions, polymers) and inorganic halides. We have also provided recent advances to the efficient synthetic protocols for optically active CsPbI3 NC phases to use readily for solar cell applications. The nanocrystal purification techniques are challenging and had a significant effect on the device performances. In part, we summarized the CsPbI3-related solar cell device performances with respect to the device fabrication methods. At the end, we provide a brief outlook on the view of surface and lattice engineering in CsPbI3 NCs for advancing the enhanced stability which is crucial for superior optical and light applications.
Collapse
Affiliation(s)
- Yixi Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Hairong Zhao
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Marek Piotrowski
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Xiao Han
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Zhongsheng Ge
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Lizhuang Dong
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Chengjie Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Sowjanya Krishna Pinisetty
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Praveen Kumar Balguri
- Department of Aeronautical Engineering, Institute of Aeronautical Engineering, Hyderabad 500043, India
| | - Anil Kumar Bandela
- Department of Chemistry, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
- Correspondence: (A.K.B.); (U.T.)
| | - Udayabhaskararao Thumu
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
- Correspondence: (A.K.B.); (U.T.)
| |
Collapse
|
180
|
Zhang C, Yin X, Guo Y, Xie H, Liu D, Que W. Hole transport free carbon-based high thermal stability CsPbI 1.2Br 1.8 solar cells with an amorphous InGaZnO 4 electron transport layer. Phys Chem Chem Phys 2022; 24:18896-18904. [PMID: 35913206 DOI: 10.1039/d2cp02201j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Due to their low cost, tunable band gap and excellent thermostability, all-inorganic halide perovskites CsPbX3 (X = Br, I) have become a kind of promising photovoltaic material. However, compared to the organic-inorganic hybrid perovskite solar cells, the performance of CsPbX3 solar cells still needs to be improved. In this work, for the first time, we applied the sol-gel derived amorphous InGaZnO4 film as electron transport layers (ETLs) in CsPbX3-based devices. In these devices, the carbon electrode deposited by screen printing replaced the unstable hole transport layer and the expensive metal electrode to obtain hole transport free carbon-based devices, which significantly simplifies the preparation process and reduces the production cost. With the application of amorphous InGaZnO4 films, devices show a relatively high power conversion efficiency (9.07%) and excellent thermal stability. Compared with the reported CsPbX3 devices using SnO2 or TiO2 ETLs, the performance of amorphous InGaZnO4 based devices has been significantly improved. This work provides a promising route to prepare highly thermally stable all-inorganic perovskite solar cells using a-IGZO films.
Collapse
Affiliation(s)
- Cong Zhang
- Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, Shaanxi Engineering Research Center of Advanced Energy Materials and Devices, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, P. R. China.
| | - Xingtian Yin
- Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, Shaanxi Engineering Research Center of Advanced Energy Materials and Devices, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, P. R. China.
| | - Yuxiao Guo
- Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, Shaanxi Engineering Research Center of Advanced Energy Materials and Devices, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, P. R. China.
| | - Haixia Xie
- Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, Shaanxi Engineering Research Center of Advanced Energy Materials and Devices, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, P. R. China.
| | - Dan Liu
- Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, Shaanxi Engineering Research Center of Advanced Energy Materials and Devices, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, P. R. China.
| | - Wenxiu Que
- Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, Shaanxi Engineering Research Center of Advanced Energy Materials and Devices, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, P. R. China.
| |
Collapse
|
181
|
Weiss R, VanOrman ZA, Sullivan CM, Nienhaus L. A Sensitizer of Purpose: Generating Triplet Excitons with Semiconductor Nanocrystals. ACS MATERIALS AU 2022; 2:641-654. [PMID: 36855545 PMCID: PMC9928406 DOI: 10.1021/acsmaterialsau.2c00047] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/25/2022] [Accepted: 07/26/2022] [Indexed: 11/28/2022]
Abstract
The process of photon upconversion promises importance for many optoelectronic applications, as it can result in higher efficiencies and more effective photon management. Upconversion via triplet-triplet annihilation (TTA) occurs at low incident powers and at high efficiencies, requirements for integration into existing optoelectronic devices. Semiconductor nanocrystals are a diverse class of triplet sensitizers with advantages over traditional molecular sensitizers such as energetic tunability and minimal energy loss during the triplet sensitization process. In this Perspective, we review current progress in semiconductor nanocrystal triplet sensitization, specifically focusing on the nanocrystal, the ligand shell which surrounds the nanocrystal, and progress in solid-state sensitization. Finally, we discuss potential areas of improvement which could result in more efficient upconversion systems sensitized by semiconductor nanocrystals. Specifically, we focus on the development of solid-state TTA upconversion systems, elucidation of the energy transfer mechanisms from nanocrystal to transmitter ligand which underpin the upconversion process and propose novel configurations of nanocrystal-sensitized systems.
Collapse
|
182
|
Cueto C, Hu W, Ribbe A, Bolduc K, Emrick T. Polystyrene‐based Macromolecular Ammonium Halides for Tuning Color and Exchange Kinetics of Perovskite Nanocrystals. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Christopher Cueto
- Department of Polymer Science & Engineering University of Massachusetts Conte Center for Polymer Research 120 Governors Dr Amherst MA 01003 USA
| | - Weiguo Hu
- Department of Polymer Science & Engineering University of Massachusetts Conte Center for Polymer Research 120 Governors Dr Amherst MA 01003 USA
| | - Alexander Ribbe
- Department of Polymer Science & Engineering University of Massachusetts Conte Center for Polymer Research 120 Governors Dr Amherst MA 01003 USA
| | - Kimberly Bolduc
- Department of Chemistry University of Massachusetts Physical Sciences Building 690 North Pleasant St Amherst MA 01003 USA
| | - Todd Emrick
- Department of Polymer Science & Engineering University of Massachusetts Conte Center for Polymer Research 120 Governors Dr Amherst MA 01003 USA
| |
Collapse
|
183
|
Li X, Sheng W, Duan X, Lin Z, Yang J, Tan L, Chen Y. Defect Passivation Effect of Chemical Groups on Perovskite Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2022; 14:34161-34170. [PMID: 34333970 DOI: 10.1021/acsami.1c08539] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Defect passivation is a key strategy to prepare high-performance perovskite solar cells (PVSCs). Even though abundant passivation molecules have been applied, the absence of detailed researches with regard to different functional groups in polymer additives may inevitably impede the establishment of passivation molecules selection rules. In this work, three passivation molecules including poly(vinyl alcohol) (PVA), polymethyl acrylate (PMA), and poly(acrylic acid) (PAA) are employed to systematically analyze the passivation effect from hydroxyl, carbonyl, and carboxyl groups. In general, PVA (-OH) can form hydrogen bonds with perovskite and PMA (-C═O) can complex with uncoordinated Pb2+. Specifically, PAA (-COOH) can interact selectively with MA+ and I- ions via hydrogen bonding and complex with uncoordinated Pb2+ to passivate defects more effectively. Hence, the PAA-incorporated PVSCs based on MAPbI3 achieve the champion power conversion efficiency (PCE) of 20.29% with open-circuit voltage up to 1.13 V. In addition, PAA cross-linking perovskite grains can relieve mechanical stress, as well as occupy the major channels to suppress ion migration and water/oxygen erosion. The corresponding unencapsulated devices demonstrate a superior light soaking stability, retaining more than 80% of the original PCE under one sun illumination for 1000 h.
Collapse
Affiliation(s)
- Xiang Li
- College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
- Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
| | - Wangping Sheng
- College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
- Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
| | - Xiaopeng Duan
- College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
- Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
| | - Zhuojia Lin
- College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
- Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
| | - Jia Yang
- College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
- Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
| | - Licheng Tan
- College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
- Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
| | - Yiwang Chen
- College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
- Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
- Institute of Advanced Scientific Research (iASR), Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
- Key Laboratory of Functional Small Molecules for Ministry of Education, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
| |
Collapse
|
184
|
Otero-Martínez C, Fiuza-Maneiro N, Polavarapu L. Enhancing the Intrinsic and Extrinsic Stability of Halide Perovskite Nanocrystals for Efficient and Durable Optoelectronics. ACS APPLIED MATERIALS & INTERFACES 2022; 14:34291-34302. [PMID: 35471818 PMCID: PMC9353780 DOI: 10.1021/acsami.2c01822] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Over the past few years, metal halide perovskite nanocrystals have been at the forefront of colloidal semiconductor nanomaterial research because of their fascinating properties and potential applications. However, their intrinsic phase instability and chemical degradation under external exposures (high temperature, water, oxygen, and light) are currently limiting the real-world applications of perovskite optoelectronics. To overcome these stability issues, researchers have reported various strategies such as doping and encapsulation. The doping improves the optical and photoactive phase stability, whereas the encapsulation protects the perovskite NCs from external exposures. This perspective discusses the rationale of various strategies to enhance the stability of perovskite NCs and suggests possible future directions for the fabrication of optoelectronic devices with long-term stability while maintaining high efficiency.
Collapse
Affiliation(s)
- Clara Otero-Martínez
- Materials
Chemistry and Physics Group, Department of Physical Chemistry Campus
Universitario As Lagoas, CINBIO, Universidade
de Vigo, Marcosende 36310, Vigo, Spain
| | - Nadesh Fiuza-Maneiro
- Materials
Chemistry and Physics Group, Department of Physical Chemistry Campus
Universitario As Lagoas, CINBIO, Universidade
de Vigo, Marcosende 36310, Vigo, Spain
| | - Lakshminarayana Polavarapu
- Materials
Chemistry and Physics Group, Department of Physical Chemistry Campus
Universitario As Lagoas, CINBIO, Universidade
de Vigo, Marcosende 36310, Vigo, Spain
| |
Collapse
|
185
|
Zamani H, Chiang TH, Klotz KR, Hsu AJ, Maye MM. Tailoring CsPbBr 3 Growth via Non-Polar Solvent Choice and Heating Methods. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:9363-9371. [PMID: 35862294 PMCID: PMC9352358 DOI: 10.1021/acs.langmuir.2c01214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 07/06/2022] [Indexed: 06/15/2023]
Abstract
This study describes an investigation of the role of non-polar solvents on the growth of cesium lead halide (CsPbX3 X = Br and I) nanoplatelets. We employed two solvents, benzyl ether (BE) and 1-octadecene (ODE), as well as two nucleation and growth mechanisms, one-pot, facilitated by microwave irradiation (MWI)-based heating, and hot-injection, using convection. Using BE and MWI, large mesoscale CsPbBr3 nanoplatelets were produced, whereas use of ODE produced small crystallites. Differences between the products were observed by optical spectroscopies, which showed first band edge absorptions consistent with thicknesses of ∼9 nm [∼15 monolayer (ML)] for the BE-CsPbBr3 and ∼5 nm (∼9 ML) for ODE-CsPbBr3. Both products had orthorhombic crystal structures, with the BE-CsPbBr3 revealing significant preferred orientation diffraction signals consistent with the asymmetric and two-dimensional platelet morphology. The differences in the final morphology were also observed for products formed via hot injection, with BE-CsPbBr3 showing thinner square platelets with thicknesses of ∼2 ML and ODE-CsPbBr3 showing similar morphologies and small crystallite sizes. To understand the role solvent plays in crystal growth, we studied lead plumbate precursor (PbBrn2-n) formation in both solvents, as well as solvent plus ligand solutions. The findings suggest that BE dissolves PbBr2 salts to a higher degree than ODE, and that this BE to precursor affinity persists during growth.
Collapse
|
186
|
Cai Y, Li W, Tian D, Shi S, Chen X, Gao P, Xie RJ. Organic Sulfonium‐Stabilized High‐Efficiency Cesium or Methylammonium Lead Bromide Perovskite Nanocrystals. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yuting Cai
- Xiamen University College of Materials and Fujian Key Laboratory of Materials Genome CHINA
| | - Wenbo Li
- Chinese Academy of Sciences Laboratory of Advanced Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institute CHINA
| | - Dongjie Tian
- Xiamen University College of Chemistry and Chemical Engineering CHINA
| | - Shuchen Shi
- Xiamen University College of Materials and Fujian Key Laboratory of Materials Genome CHINA
| | - Xi Chen
- Xiamen University College of Chemistry and Chemical Engineering CHINA
| | - Peng Gao
- Chinese Academy of Sciences Laboratory of Advanced Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institute CHINA
| | - Rong-Jun Xie
- Xiamen University College of Materials 422 Siming South Road 361005 Xiamen CHINA
| |
Collapse
|
187
|
Mir WJ, Alamoudi A, Yin J, Yorov KE, Maity P, Naphade R, Shao B, Wang J, Lintangpradipto MN, Nematulloev S, Emwas AH, Genovese A, Mohammed OF, Bakr OM. Lecithin Capping Ligands Enable Ultrastable Perovskite-Phase CsPbI 3 Quantum Dots for Rec. 2020 Bright-Red Light-Emitting Diodes. J Am Chem Soc 2022; 144:13302-13310. [PMID: 35834433 DOI: 10.1021/jacs.2c04637] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Bright-red light-emitting diodes (LEDs) with a narrow emission line width that emit between 620 and 635 nm are needed to meet the latest industry color standard for wide color gamut displays, Rec. 2020. CsPbI3 perovskite quantum dots (QDs) are one of the few known materials that are ideally suited to meet these criteria. Unfortunately, CsPbI3 perovskite QDs are prone to transform into a non-red-emitting phase and are subject to further degradation mechanisms when their luminescence wavelength is tuned to match that of the Rec. 2020 standard. Here, we show that zwitterionic lecithin ligands can stabilize the perovskite phase of CsPbI3 QDs for long periods in air for at least 6 months compared to a few days for control samples. LEDs fabricated with our ultrastable lecithin-capped CsPbI3 QDs exhibit an external quantum efficiency (EQE) of 7.1% for electroluminescence centered at 634 nm─a record for all-inorganic perovskite nanocrystals in Rec. 2020 red. Our devices achieve a maximum luminance of 1391 cd/m2 at 7.5 V, and their operational half-life is 33 min (T50) at 200 cd/m2─a 10-fold enhancement compared to control samples. Density functional theory results suggest that the surface strain in CsPbI3 QDs capped with the conventional ligands, oleic acid and oleylamine, contributes to the instability of the perovskite structural phase. On the other hand, lecithin binding induces virtually no surface strain and shows a stronger binding tendency for the CsPbI3 surface. Our study highlights the tremendous potential of zwitterionic ligands in stabilizing the perovskite phase and particle size of CsPbI3 QDs for various optoelectronic applications.
Collapse
Affiliation(s)
- Wasim J Mir
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Ahmed Alamoudi
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Jun Yin
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia.,Advanced Membranes and Porous Materials Center, Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Khursand E Yorov
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Partha Maity
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia.,Advanced Membranes and Porous Materials Center, Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Rounak Naphade
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Bingyao Shao
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Jiayi Wang
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Muhammad Naufal Lintangpradipto
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Saidkhodzha Nematulloev
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Abdul-Hamid Emwas
- Core Labs, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Alessandro Genovese
- Core Labs, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Omar F Mohammed
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia.,Advanced Membranes and Porous Materials Center, Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Osman M Bakr
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| |
Collapse
|
188
|
Mannar S, Mandal P, Roy A, Viswanatha R. Experimental Determination of the Molar Absorption Coefficient of Cesium Lead Halide Perovskite Quantum Dots. J Phys Chem Lett 2022; 13:6290-6297. [PMID: 35786971 DOI: 10.1021/acs.jpclett.2c01198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Lead halide perovskite (CsPbX3, where X = Cl, Br, or I) quantum dots (QDs), with tunable optical and electronic properties, have attracted attention because of their promising applications in solar cells and next-generation optoelectronic devices. Hence, it is crucial to investigate in detail the fundamental size-dependent properties of these perovskite QDs to obtain high-quality nanocrystals for practical use. We propose a direct method for determining the concentration of solution-processed CsPbX3 QDs by means of spectrophotometry, in which the molar absorption coefficient (ε) is obtained using absorption and the Beer-Lambert law. By tuning the size of CsPbX3 QDs, we obtain their corresponding ε leading to a calibration curve for calculating the nanocrystal concentrations. The ε at the band edge for CsPbX3 (X = Cl, Br, or I) nanocrystals was found to be strongly dependent on the bandgap of the nanocrystals. We also obtained a reliable size dependence of the bandgap calibration curves to estimate the size of QDs from the absorption spectra.
Collapse
Affiliation(s)
- Subhashri Mannar
- International Centre for Material Science (ICMS), JNCASR, Bangalore 560064, India
| | | | - Angira Roy
- International Centre for Material Science (ICMS), JNCASR, Bangalore 560064, India
| | - Ranjani Viswanatha
- International Centre for Material Science (ICMS), JNCASR, Bangalore 560064, India
- New Chemistry Unit (NCU), JNCASR, Bangalore 560064, India
| |
Collapse
|
189
|
Chen J, Huang X, Xu Z, Chi Y. Alcohol-Stable Perovskite Nanocrystals and Their In Situ Capsulation with Polystyrene. ACS APPLIED MATERIALS & INTERFACES 2022; 14:33703-33711. [PMID: 35819234 DOI: 10.1021/acsami.2c07707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In recent years, lead halide perovskite nanocrystals (PNCs) have presented potential scalable applications in all fields due to their outstanding properties. However, most commonly used PNCs capped with oleic acid (OA) and oleylamine (OAm) suffer from bad stability in polar solutions and thus require various surface protections with organic or inorganic materials. Encapsulation with highly hydrophobic polystyrene (PS) is one of the most efficient ways to protect PNCs; however, the presently used swelling-shrinking strategy faces several challenges, such as weak interaction between PS chains and the surface ligands in nonpolar media causing a low encapsulation efficiency, and serious aggregation of PS particles during the shrinkage process leading to very different particle sizes. Herein, alcohol-stable polyacrylic acid-capped CsPbBr3 PNCs (i.e., PAA-PNCs) are first synthesized and then in situ encapsulated with PS shells by polymerizing styrene monomer on the PNC surfaces in a polar organic solvent (e.g., ethanol). The in situ PS-encapsulated PAA-PNCs (i.e., PAA-PNCs@iPS) exhibit outstanding monodispersity, remarkable water, heat, and UV stability, high fluorescence activity, and color purity. The unique synthesis strategy and good performances of PAA-PNCs@iPS will boost the applications of PNCs in LEDs, biological imaging, and chemosensing.
Collapse
Affiliation(s)
- Jie Chen
- College of Chemistry, MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Xu Huang
- College of Chemistry, MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Zelian Xu
- College of Chemistry, MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Yuwu Chi
- College of Chemistry, MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fuzhou University, Fuzhou, Fujian 350108, China
| |
Collapse
|
190
|
Das S, Samanta A. On direct synthesis of high quality APbX 3 (A = Cs +, MA + and FA +; X = Cl -, Br - and I -) nanocrystals following a generic approach. NANOSCALE 2022; 14:9349-9358. [PMID: 35726794 DOI: 10.1039/d2nr01305c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Direct synthesis of APbX3 [A = Cs+, methylammonium (MA+) or formamidinium (FA+) and X = Cl-, Br- or I-] perovskite nanocrystals (NCs) following a generic approach is a challenging task even today. Motivated by our recent success in obtaining directly high-quality red/NIR-emitting APbI3 NCs employing 1,3-diiodo-5,5-dimethylhydantoin (DIDMH) as an iodide precursor, we explore here whether violet/green-emitting APbCl3 and APbBr3 NCs can also be obtained using the chloro- and bromo-analog of DIDMH keeping in mind that a positive outcome will provide the generic protocol for direct synthesis of all APbX3 NCs using similar halide precursors. It is shown that green-emitting APbBr3 NCs with near-unity PLQY and violet-emitting CsPbCl3 NCs with an impressive PLQY of ∼70%, mixed-halide NCs, CsPb(Cl/Br)3 and CsPb(Br/I)3, emitting in the blue and yellow-orange region with PLQYs of 87-95% and 68-98%, respectively can indeed be obtained employing the bromo- and chloro-analog of DIDMH. These NCs exhibit remarkable stability under different conditions including the polar environment. Femtosecond pump-probe studies show no ultrafast carrier trapping in these systems. The key elements of the halide precursors that facilitated the synthesis and the factors contributing to the excellent characteristics of the NCs are determined by careful analysis of the data. The results are of great significance because a direct method of obtaining highly luminescent and stable APbX3 NCs (except violet-emitting hybrid NCs) is eventually identified and the work provides valuable insight into the selection of appropriate halide precursors for the development of superior systems.
Collapse
Affiliation(s)
- Somnath Das
- School of Chemistry, University of Hyderabad, Hyderabad-500 046, India.
| | - Anunay Samanta
- School of Chemistry, University of Hyderabad, Hyderabad-500 046, India.
| |
Collapse
|
191
|
DuBose JT, Kamat PV. Energy Versus Electron Transfer: Managing Excited-State Interactions in Perovskite Nanocrystal-Molecular Hybrids. Chem Rev 2022; 122:12475-12494. [PMID: 35793168 DOI: 10.1021/acs.chemrev.2c00172] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Energy and electron transfer processes in light harvesting assemblies dictate the outcome of the overall light energy conversion process. Halide perovskite nanocrystals such as CsPbBr3 with relatively high emission yield and strong light absorption can transfer singlet and triplet energy to surface-bound acceptor molecules. They can also induce photocatalytic reduction and oxidation by selectively transferring electrons and holes across the nanocrystal interface. This perspective discusses key factors dictating these excited-state pathways in perovskite nanocrystals and the fundamental differences between energy and electron transfer processes. Spectroscopic methods to decipher between these complex photoinduced pathways are presented. A basic understanding of the fundamental differences between the two excited deactivation processes (charge and energy transfer) and ways to modulate them should enable design of more efficient light harvesting assemblies with semiconductor and molecular systems.
Collapse
Affiliation(s)
- Jeffrey T DuBose
- Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States.,Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Prashant V Kamat
- Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States.,Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States.,Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| |
Collapse
|
192
|
Cao Y, Shao Y, Zhang J, Chen C, Wang Q. The photothermal stability study of silica-coated CsPbBr3 perovskite nanocrystals. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
193
|
Unraveling the Role of Hydrogen Bromide in the Growth of Cesium Lead Bromide Perovskite Nanocrystals. J Colloid Interface Sci 2022; 626:591-598. [DOI: 10.1016/j.jcis.2022.06.170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 05/26/2022] [Accepted: 06/28/2022] [Indexed: 11/24/2022]
|
194
|
du Fossé I, Mulder JT, Almeida G, Spruit AGM, Infante I, Grozema FC, Houtepen AJ. Limits of Defect Tolerance in Perovskite Nanocrystals: Effect of Local Electrostatic Potential on Trap States. J Am Chem Soc 2022; 144:11059-11063. [PMID: 35765828 PMCID: PMC9247979 DOI: 10.1021/jacs.2c02027] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
![]()
One of the most promising
properties of lead halide perovskite
nanocrystals (NCs) is their defect tolerance. It is often argued that,
due to the electronic structure of the conduction and valence bands,
undercoordinated ions can only form localized levels inside or close
to the band edges (i.e., shallow traps). However, multiple studies
have shown that dangling bonds on surface Br– can
still create deep trap states. Here, we argue that the traditional
picture of defect tolerance is incomplete and that deep Br– traps can be explained by considering the local environment of the
trap states. Using density functional theory calculations, we show
that surface Br– sites experience a destabilizing
local electrostatic potential that pushes their dangling orbitals
into the bandgap. These deep trap states can be electrostatically
passivated through the addition of ions that stabilize the dangling
orbitals via ionic interactions without covalently binding to the
NC surface. These results shed light on the formation of deep traps
in perovskite NCs and provide strategies to remove them from the bandgap.
Collapse
Affiliation(s)
- Indy du Fossé
- Optoelectronic Materials Section, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Jence T Mulder
- Optoelectronic Materials Section, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Guilherme Almeida
- Optoelectronic Materials Section, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Anne G M Spruit
- Optoelectronic Materials Section, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Ivan Infante
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Ferdinand C Grozema
- Optoelectronic Materials Section, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Arjan J Houtepen
- Optoelectronic Materials Section, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| |
Collapse
|
195
|
Ye J, Li Z, Kubicki DJ, Zhang Y, Dai L, Otero-Martínez C, Reus MA, Arul R, Dudipala KR, Andaji-Garmaroudi Z, Huang YT, Li Z, Chen Z, Müller-Buschbaum P, Yip HL, Stranks SD, Grey CP, Baumberg JJ, Greenham NC, Polavarapu L, Rao A, Hoye RLZ. Elucidating the Role of Antisolvents on the Surface Chemistry and Optoelectronic Properties of CsPbBr xI 3-x Perovskite Nanocrystals. J Am Chem Soc 2022; 144:12102-12115. [PMID: 35759794 PMCID: PMC9284547 DOI: 10.1021/jacs.2c02631] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
![]()
Colloidal lead-halide
perovskite nanocrystals (LHP NCs) have emerged
over the past decade as leading candidates for efficient next-generation
optoelectronic devices, but their properties and performance critically
depend on how they are purified. While antisolvents are widely used
for purification, a detailed understanding of how the polarity of
the antisolvent influences the surface chemistry and composition of
the NCs is missing in the field. Here, we fill this knowledge gap
by
studying the surface chemistry of purified CsPbBrxI3-x NCs as the model system,
which in itself is considered a promising candidate for pure-red light-emitting
diodes and top-cells for tandem photovoltaics. Interestingly, we find
that as the polarity of the antisolvent increases (from methyl acetate
to acetone to butanol), there is a blueshift in the photoluminescence
(PL) peak of the NCs along with a decrease in PL quantum yield (PLQY).
Through transmission electron microscopy and X-ray photoemission spectroscopy
measurements, we find that these changes in PL properties arise from
antisolvent-induced iodide removal, which leads to a change in halide
composition and, thus, the bandgap. Using detailed nuclear magnetic
resonance (NMR) and Fourier-transform infrared spectroscopy (FTIR)
measurements along with density functional theory calculations, we
propose that more polar antisolvents favor the detachment of the oleic
acid and oleylamine ligands, which undergo amide condensation reactions,
leading to the removal of iodide anions from the NC surface bound
to these ligands. This work shows that careful selection of low-polarity
antisolvents is a critical part of designing the synthesis of NCs
to achieve high PLQYs with minimal defect-mediated phase segregation.
Collapse
Affiliation(s)
- Junzhi Ye
- Cavendish Laboratory, University of Cambridge, JJ Thomson Ave, Cambridge CB3 0HE, United Kingdom
| | - Zhenchao Li
- State Key Laboratory of Luminescent Materials and Devices, School of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, China
| | - Dominik J Kubicki
- Cavendish Laboratory, University of Cambridge, JJ Thomson Ave, Cambridge CB3 0HE, United Kingdom.,Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Yunwei Zhang
- Cavendish Laboratory, University of Cambridge, JJ Thomson Ave, Cambridge CB3 0HE, United Kingdom.,School of Physics, Sun Yat-sen University, 510275 Guangzhou, China
| | - Linjie Dai
- Cavendish Laboratory, University of Cambridge, JJ Thomson Ave, Cambridge CB3 0HE, United Kingdom
| | - Clara Otero-Martínez
- CINBIO, Universidade de Vigo, Materials Chemistry and Physics Group, Department of Physical Chemistry, Campus Universitario As Lagoas, Marcosende, 36310 Vigo, Spain
| | - Manuel A Reus
- Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| | - Rakesh Arul
- Cavendish Laboratory, University of Cambridge, JJ Thomson Ave, Cambridge CB3 0HE, United Kingdom
| | - Kavya Reddy Dudipala
- Department of Materials, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom
| | - Zahra Andaji-Garmaroudi
- Cavendish Laboratory, University of Cambridge, JJ Thomson Ave, Cambridge CB3 0HE, United Kingdom
| | - Yi-Teng Huang
- Cavendish Laboratory, University of Cambridge, JJ Thomson Ave, Cambridge CB3 0HE, United Kingdom
| | - Zewei Li
- Cavendish Laboratory, University of Cambridge, JJ Thomson Ave, Cambridge CB3 0HE, United Kingdom
| | - Ziming Chen
- State Key Laboratory of Luminescent Materials and Devices, School of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, China
| | - Peter Müller-Buschbaum
- Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany.,Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstr. 1, 85748 Garching, Germany
| | - Hin-Lap Yip
- State Key Laboratory of Luminescent Materials and Devices, School of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, China.,Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
| | - Samuel D Stranks
- Cavendish Laboratory, University of Cambridge, JJ Thomson Ave, Cambridge CB3 0HE, United Kingdom.,Department of Chemical Engineering & Biotechnology, University of Cambridge, Cambridge CB3 0AS, United Kingdom
| | - Clare P Grey
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Jeremy J Baumberg
- Cavendish Laboratory, University of Cambridge, JJ Thomson Ave, Cambridge CB3 0HE, United Kingdom
| | - Neil C Greenham
- Cavendish Laboratory, University of Cambridge, JJ Thomson Ave, Cambridge CB3 0HE, United Kingdom
| | - Lakshminarayana Polavarapu
- CINBIO, Universidade de Vigo, Materials Chemistry and Physics Group, Department of Physical Chemistry, Campus Universitario As Lagoas, Marcosende, 36310 Vigo, Spain
| | - Akshay Rao
- Cavendish Laboratory, University of Cambridge, JJ Thomson Ave, Cambridge CB3 0HE, United Kingdom
| | - Robert L Z Hoye
- Department of Materials, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom
| |
Collapse
|
196
|
Li T, Wu Y, Liu Z, Yang Y, Luo H, Li L, Chen P, Gao X, Tan H. Cesium acetate-assisted crystallization for high-performance inverted CsPbI 3perovskite solar cells. NANOTECHNOLOGY 2022; 33:375205. [PMID: 35675793 DOI: 10.1088/1361-6528/ac76d5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 06/07/2022] [Indexed: 06/15/2023]
Abstract
Efficient inverted (p-i-n) type CsPbI3perovskite solar cells (PSCs) have revealed promising applications due to their excellent thermal and photostability. Regulating the nucleation and crystallization of perovskite film is an important route to improving the performance of CsPbI3PSCs. Herein, we explored cesium acetate (CsAc) as additive to manipulate the crystallization process of CsPbI3perovskite films. By involving in the intermediate phase DMA1-xCsxPbI3-yAcyof perovskite, the pseudo-halide acetate (Ac-) can retard the ion exchange reaction between DMA+and Cs+, leading to a perovskite with dense morphology, low defect density, and a long carrier lifetime. As a result, the optimal CsPbI3PSCs yielded a high power conversion efficiency of 18.3%. Moreover, the encapsulated devices showed excellent operational stability and the devices retained their initial performance following 500 h of operation at the maximum power point under one-sun illumination in ambient conditions.
Collapse
Affiliation(s)
- Tiantian Li
- School of Materials Science and Engineering, Nankai University, Tianjin 300350, People's Republic of China
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210023, People's Republic of China
| | - Yue Wu
- School of Materials Science and Engineering, Nankai University, Tianjin 300350, People's Republic of China
| | - Zhou Liu
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210023, People's Republic of China
| | - Yuanbo Yang
- School of Materials Science and Engineering, Nankai University, Tianjin 300350, People's Republic of China
| | - Haowen Luo
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210023, People's Republic of China
| | - Ludong Li
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210023, People's Republic of China
| | - Peng Chen
- School of Materials Science and Engineering, Nankai University, Tianjin 300350, People's Republic of China
| | - Xueping Gao
- School of Materials Science and Engineering, Nankai University, Tianjin 300350, People's Republic of China
| | - Hairen Tan
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, Nanjing 210023, People's Republic of China
| |
Collapse
|
197
|
Marjit K, Ghosh G, Biswas RK, Ghosh S, Pati SK, Patra A. Modulating the Carrier Relaxation Dynamics in Heterovalently (Bi 3+) Doped CsPbBr 3 Nanocrystals. J Phys Chem Lett 2022; 13:5431-5440. [PMID: 35679509 DOI: 10.1021/acs.jpclett.2c01270] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Manipulation of intrinsic carrier relaxation is crucial for designing efficient lead halide perovskite nanocrystal (NC) based optoelectronic devices. The influence of heterovalent Bi3+ doping on the ultrafast carrier dynamics and hot carrier (HC) cooling relaxation of CsPbBr3 NCs has been studied using femtosecond transient absorption spectroscopy and first-principles calculations. The initial HC temperature and LO phonon decay time point to a faster HC relaxation rate in the Bi3+-doped CsPbBr3 NCs. The first-principles calculations disclose the acceleration of carrier relaxation in Bi3+-doped CsPbBr3 NCs due to the appearance of localized bands (antitrap states) within the conduction band. The higher Born effective charges (Z*) and higher soft energetic optical phonon density of states cause higher electron-phonon scattering rates in the Bi-doped CsPbBr3 system, which is responsible for the faster HC cooling rate in doped systems.
Collapse
Affiliation(s)
- Kritiman Marjit
- School of Materials Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Goutam Ghosh
- School of Materials Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Raju K Biswas
- Theoretical Sciences Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore 560064, India
| | - Srijon Ghosh
- School of Materials Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Swapan K Pati
- Theoretical Sciences Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore 560064, India
| | - Amitava Patra
- School of Materials Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India
| |
Collapse
|
198
|
2D Material and Perovskite Heterostructure for Optoelectronic Applications. NANOMATERIALS 2022; 12:nano12122100. [PMID: 35745439 PMCID: PMC9228184 DOI: 10.3390/nano12122100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 06/06/2022] [Accepted: 06/16/2022] [Indexed: 02/06/2023]
Abstract
Optoelectronic devices are key building blocks for sustainable energy, imaging applications, and optical communications in modern society. Two-dimensional materials and perovskites have been considered promising candidates in this research area due to their fascinating material properties. Despite the significant progress achieved in the past decades, challenges still remain to further improve the performance of devices based on 2D materials or perovskites and to solve stability issues for their reliability. Recently, a novel concept of 2D material/perovskite heterostructure has demonstrated remarkable achievements by taking advantage of both materials. The diverse fabrication techniques and large families of 2D materials and perovskites open up great opportunities for structure modification, interface engineering, and composition tuning in state-of-the-art optoelectronics. In this review, we present comprehensive information on the synthesis methods, material properties of 2D materials and perovskites, and the research progress of optoelectronic devices, particularly solar cells and photodetectors which are based on 2D materials, perovskites, and 2D material/perovskite heterostructures with future perspectives.
Collapse
|
199
|
Chi S, Yang S, Sun Y, Pang Z, Sun X, Fan L, Wang F, Liu X, Wei M, Yang J, Yang N, Yang L. Synthesis and Improved Photoluminescent Properties and Stability of Bromine‐Rich CsPbBr
3
Nanocrystals Via using CTAB as Additive. CRYSTAL RESEARCH AND TECHNOLOGY 2022. [DOI: 10.1002/crat.202200051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shaohua Chi
- Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Shuo Yang
- College of Science Changchun University Changchun 130022 P. R. China
| | - Yansen Sun
- Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Zhenyu Pang
- Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Xiaoxu Sun
- Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Lin Fan
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Fengyou Wang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Xiaoyan Liu
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Maobin Wei
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Jinghai Yang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Nannan Yang
- College of Mechanical Engineering Jilin Engineering Normal University Changchun 130052 P. R. China
| | - Lili Yang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| |
Collapse
|
200
|
Scharf E, Krieg F, Elimelech O, Oded M, Levi A, Dirin DN, Kovalenko MV, Banin U. Ligands Mediate Anion Exchange between Colloidal Lead-Halide Perovskite Nanocrystals. NANO LETTERS 2022; 22:4340-4346. [PMID: 35605286 PMCID: PMC9185745 DOI: 10.1021/acs.nanolett.2c00611] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 05/05/2022] [Indexed: 05/31/2023]
Abstract
The soft lattice of lead-halide perovskite nanocrystals (NCs) allows tuning their optoelectronic characteristics via anion exchange by introducing halide salts to a solution of perovskite NCs. Similarly, cross-anion exchange can occur upon mixing NCs of different perovskite halides. This process, though, is detrimental for applications requiring perovskite NCs with different halides in close proximity. We study the effects of various stabilizing surface ligands on the kinetics of the cross-anion exchange reaction, comparing zwitterionic and ionic ligands. The kinetic analysis, inspired by the "cage effect" for solution reactions, showcases a mechanism where the surface capping ligands act as anion carriers that diffuse to the NC surface, forming an encounter pair enclosed by the surrounding ligands that initiates the anion exchange process. The zwitterionic ligands considerably slow down the cross-anion exchange process, and while they do not fully inhibit it, they confer improved stability alongside enhanced solubility relevant for various applications.
Collapse
Affiliation(s)
- Einav Scharf
- The
Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Franziska Krieg
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, Zürich CH-8093, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, Dübendorf CH-8600, Switzerland
| | - Orian Elimelech
- The
Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Meirav Oded
- The
Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Adar Levi
- The
Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Dmitry N. Dirin
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, Zürich CH-8093, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, Dübendorf CH-8600, Switzerland
| | - Maksym V. Kovalenko
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, Zürich CH-8093, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, Dübendorf CH-8600, Switzerland
| | - Uri Banin
- The
Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| |
Collapse
|