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Zhao Q, Chen F, Li C, Shang C, Huang Q, Yan B, Zhu H, Wang K, Zhang W, Zhou T, Ding J. Challenges and developments for the blue perovskite nanocrystal light-emitting diodes. Dalton Trans 2023; 52:3921-3941. [PMID: 36939177 DOI: 10.1039/d3dt00122a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Abstract
Perovskite nanomaterials have been highly thought as next-generation light emitters after recent development owing to their benefits of simple synthesis, low-cost, large-area, and wide color gamut. Encouragingly, the external quantum efficiencies (EQEs) of green, red, and near-infrared perovskite light-emitting diodes (PeLEDs) have exceeded more than 20%. However, the performance of the blue PeLEDs is still lower than other analogs, which severely limits the applications of PeLEDs in future full-color displays. Herein, we have reviewed the advances in blue perovskite NCs and their applications in blue PeLEDs. Promising blue perovskite emitters and strategies for fabricating highly efficient blue PeLEDs based on perovskite NCs are investigated and highlighted. Moreover, we point out the main challenges in blue perovskite NC LEDs including low electroluminescence efficiency (EL), spectral instability, the difficulty of charge injection, and device optimization. The perspectives for the further development of blue PeLEDs are also presented.
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Affiliation(s)
- Qiqi Zhao
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
| | - Feitong Chen
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
| | - Changqian Li
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
| | - Chenyu Shang
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
| | - Qi Huang
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
| | - Bin Yan
- College of Energy Storage Technology, Shandong University of Science and Technology, Qingdao 266590, China.
| | - Huiling Zhu
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
| | - Kunhua Wang
- College of Energy Storage Technology, Shandong University of Science and Technology, Qingdao 266590, China.
| | - Weiwei Zhang
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
| | - Tianliang Zhou
- College of Materials, Xiamen University, Xiamen 361005, China.
| | - Jianxu Ding
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
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2
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Guan J, Yang D, Ma J, Shen Y, Xu Q, Hu X. Ultra-stable CsPbBr 3@PbBrOH nanorods for fluorescence labeling application based on methylimidazole-assisted synthesis. J Mater Chem B 2023; 11:1705-1712. [PMID: 36723145 DOI: 10.1039/d2tb02502g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The extension application of perovskites in aqueous media such as bioassays requires the development of a water-stable perovskite with a simple preparation process and low cost. However, the degradation of perovskites in aqueous solution is still a thorny problem. Here, we develop a methylimidazole-assisted two-step synthesis protocol to prepare CsPbBr3@PbBrOH nanorods with superior water stability and remarkable optical properties at room temperature. The synergy of 2-methylimidazole (2-MIM), an N-donor ligand, with water can not only facilitate CsPbBr3 formation and suppress CsPb2Br5 or Cs4PbBr6 formation, but also promote the formation of a PbBrOH shell capping CsPbBr3. 2-MIM is ionized into 2-MIM- in DMF and 2-MIM+ in water. They passivated the surface defects and changed the crystallization environment, leading to water-stable CsPbBr3@PbBrOH. The obtained CsPbBr3@PbBrOH nanorods can still maintain 91% PL intensity after being stored in water for more than 2 months. Furthermore, the CsPbBr3@PbBrOH nanorods show excellent stability in polar solvents, water, and phosphate buffer solution in a wide pH range, as well as better thermal and irradiation stability. In addition, the CsPbBr3@PbBrOH nanorods are further functionalized with polydopamine (PDA) for biomolecular immobilization and immunoassay studies. The resulting assay shows a detection limit of 0.003 ng mL-1 for IgG detection, illustrating important progress towards expanding fluorescence labeling application of perovskite nanomaterials for immunoassays.
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Affiliation(s)
- Jie Guan
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
| | - Dandan Yang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
| | - Junyi Ma
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
| | - Yingzhuo Shen
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
| | - Qin Xu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
| | - Xiaoya Hu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
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3
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Carrizo AF, Belmonte GK, Santos FS, Backes CW, B Strapasson G, Schmidt LC, Rodembusch FS, Weibel DE. Highly Water-Stable Polymer-Perovskite Nanocomposites. ACS APPLIED MATERIALS & INTERFACES 2021; 13:59252-59262. [PMID: 34851611 DOI: 10.1021/acsami.1c17594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The excellent performance of hybrid metal-halide perovskite nanocrystals (NCs) contrasts with their unsatisfactory stability in a high-humidity environment or water. Herein, polymer composite lead-halide perovskites (LHPs) NCs were prepared by casting or spin-coating to produce a high fluorescence yield and a fully water-resistant material. Poly(l-lactide) (PLla), polypropylene glycol (PPGly), and polysulfone (PSU) commercial polymers were used to prepare suspensions of MAPbBr3-HDA NCs (MA: CH3NH3; HDA: hexadecylamine). The MAPbBr3-HDA@PLla suspension exhibited a maximum fluorescence quantum yield of 93% compared to 43% for the pristine MAPbBr3-HDA NCs. Strong emissions around 528 nm were also observed, with the same full width at half maximum value of 20 nm, demonstrating the successful fabrication of brightly luminescent LHP NCs@polymer combinations. Time-resolved photoluminescence measurements directly observed the enhanced spontaneous emission of the NCs induced by the polymeric environment. However, the cast films of MAPbBr3-HDA NCs mixed with PLla or PPGly did not resist water immersion. On the contrary, MAPbBr3-HDA@PPGly/PSU films containing well-dispersed ∼10 nm LHP NCs retained a bright green fluorescence emission even after 18 months under air conditions or water immersion up to 45 °C. From water contact angle measurements, profilometry, and X-ray photoelectron spectroscopy data, it could be assumed that the slightly hydrophobic PSU polymer is responsible for the high water stability of the fluorescent films, which avoids MAPbBr3-HDA NC degradation. This work shows that the LHP NC dispersion in dissolved commodity polymers holds great promise toward the long-term stability of LHP NC composites for the future development of wearable electronic devices and other waterproof applications.
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Affiliation(s)
- Antonella Florencia Carrizo
- Facultad de Ciencias Químicas, Departamento de Química Orgánica, Universidad Nacional de Córdoba, Av. Haya de la Torre s/n, X5000HUA Córdoba, Argentina
| | - Guilherme K Belmonte
- Institute of Chemistry, Universidade Federal do Rio Grande do Sul, UFRGS, Av. Bento Gonçalves, 9500, Bairro Agronomia, CP 15003, CEP: 91501-970 Porto Alegre, Rio Grande do Sul, Brazil
| | - Fabiano S Santos
- Institute of Chemistry, Universidade Federal do Rio Grande do Sul, UFRGS, Av. Bento Gonçalves, 9500, Bairro Agronomia, CP 15003, CEP: 91501-970 Porto Alegre, Rio Grande do Sul, Brazil
| | - Claudio W Backes
- Institute of Chemistry, Universidade Federal do Rio Grande do Sul, UFRGS, Av. Bento Gonçalves, 9500, Bairro Agronomia, CP 15003, CEP: 91501-970 Porto Alegre, Rio Grande do Sul, Brazil
| | - Guilherme B Strapasson
- Institute of Chemistry, Universidade Federal do Rio Grande do Sul, UFRGS, Av. Bento Gonçalves, 9500, Bairro Agronomia, CP 15003, CEP: 91501-970 Porto Alegre, Rio Grande do Sul, Brazil
| | - Luciana C Schmidt
- Facultad de Ciencias Químicas, Departamento de Química Orgánica, Universidad Nacional de Córdoba, Av. Haya de la Torre s/n, X5000HUA Córdoba, Argentina
| | - Fabiano S Rodembusch
- Institute of Chemistry, Universidade Federal do Rio Grande do Sul, UFRGS, Av. Bento Gonçalves, 9500, Bairro Agronomia, CP 15003, CEP: 91501-970 Porto Alegre, Rio Grande do Sul, Brazil
| | - Daniel E Weibel
- Institute of Chemistry, Universidade Federal do Rio Grande do Sul, UFRGS, Av. Bento Gonçalves, 9500, Bairro Agronomia, CP 15003, CEP: 91501-970 Porto Alegre, Rio Grande do Sul, Brazil
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4
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Yang HS, Noh SH, Suh EH, Jung J, Oh JG, Lee KH, Jang J. Enhanced Stabilities and Production Yields of MAPbBr 3 Quantum Dots and Their Applications as Stretchable and Self-Healable Color Filters. ACS APPLIED MATERIALS & INTERFACES 2021; 13:4374-4384. [PMID: 33448782 DOI: 10.1021/acsami.0c19287] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Organic-inorganic hybrid CH3NH3PbBr3 (MAPbBr3) perovskite quantum dots (PQDs) are considered as promising and cost-effective building blocks for various optoelectronic devices. However, during centrifugation for the purification of these PQDs, commonly used polar protic and aprotic non-solvents (e.g., methanol and acetone) can destroy the nanocrystal structure of MAPbBr3 perovskites, which will significantly reduce the production yields and degrade the optical properties of the PQDs. This study demonstrates the use of methyl acetate (MeOAc) as an effective non-solvent for purifying as-synthesized MAPbBr3 PQDs without causing severe damage, which facilitates attainment of stable PQD solutions with high production yields. The MeOAc-washed MAPbBr3 PQDs maintain their high photoluminescence (PL) quantum yields and crystalline structures for long periods in solution states. MeOAc undergoes a hydrolysis reaction in the presence of the PQDs, and the resulting acetate anions partially replace the original surface ligands without damaging the PQD cores. Time-resolved PL analysis reveals that the MeOAc-washed PQDs show suppressed non-radiative recombination and a longer PL lifetime than acetone-washed and methanol-washed PQDs. Finally, it is demonstrated that a composite of the MAPbBr3 PQDs and a thermoplastic elastomer (polystyrene-block-polyisoprene-block-polystyrene) is feasible as a stretchable and self-healable green color filter for a white light-emitting diode device.
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Affiliation(s)
- Han Sol Yang
- Department of Energy Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Sung Hoon Noh
- Department of Energy Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Eui Hyun Suh
- Department of Energy Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Jaemin Jung
- Department of Energy Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Jong Gyu Oh
- Department of Energy Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Kyeong Ho Lee
- Department of Energy Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Jaeyoung Jang
- Department of Energy Engineering, Hanyang University, Seoul 04763, Republic of Korea
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5
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Kirakosyan A, Jeon MG, Kim CY, Kim Y, Choi J. Binary ligand-mediated morphological evolution of methylammonium lead bromide nanocrystals. CrystEngComm 2021. [DOI: 10.1039/d1ce00518a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Binary ligands of carboxylic acids and alkylamines induce the morphological evolution of MAPbBr3 nanocubes to 1D nanowires and 2D nanosheets during the aging process.
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Affiliation(s)
- Artavazd Kirakosyan
- Department of Materials Science and Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
| | - Min-Gi Jeon
- Department of Materials Science and Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
| | - Chang-Yeon Kim
- Research Center for Materials Analysis, Korea Basic Science Institute, Daejeon, 34133, Republic of Korea
| | - Yeonho Kim
- Research Institute of Basic Science, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon, 22012, Republic of Korea
| | - Jihoon Choi
- Department of Materials Science and Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
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6
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Sihn MR, Kirakosyan A, Jeon MG, Choi J. Suppressed Mn2+ doping in organometal halide perovskite nanocrystals by formation of two-dimensional (CH3NH3)2MnCl4. Chem Commun (Camb) 2021; 57:5055-5058. [DOI: 10.1039/d1cc00334h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Formation of the additional 2-D (MA)2MnCl4 phase suppresses the efficient Mn2+ doping into halide perovskite structures during the reprecipitation process.
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Affiliation(s)
- Moon Ryul Sihn
- Department of Materials Science and Engineering
- Chungnam National University 99 Daehak-ro, Yuseong-gu
- Daejeon
- Republic of Korea
| | - Artavazd Kirakosyan
- Department of Materials Science and Engineering
- Chungnam National University 99 Daehak-ro, Yuseong-gu
- Daejeon
- Republic of Korea
| | - Min-Gi Jeon
- Department of Materials Science and Engineering
- Chungnam National University 99 Daehak-ro, Yuseong-gu
- Daejeon
- Republic of Korea
| | - Jihoon Choi
- Department of Materials Science and Engineering
- Chungnam National University 99 Daehak-ro, Yuseong-gu
- Daejeon
- Republic of Korea
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7
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Liu M, Matuhina A, Zhang H, Vivo P. Advances in the Stability of Halide Perovskite Nanocrystals. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E3733. [PMID: 31726730 PMCID: PMC6888407 DOI: 10.3390/ma12223733] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 11/07/2019] [Accepted: 11/08/2019] [Indexed: 12/20/2022]
Abstract
Colloidal halide perovskite nanocrystals are promising candidates for next-generation optoelectronics because of their facile synthesis and their outstanding and size-tunable properties. However, these materials suffer from rapid degradation, similarly to their bulk perovskite counterparts. Here, we survey the most recent strategies to boost perovskite nanocrystals stability, with a special focus on the intrinsic chemical- and compositional-factors at synthetic and post-synthetic stage. Finally, we review the most promising approaches to address the environmental extrinsic stability of perovskite nanocrystals (PNCs). Our final goal is to outline the most promising research directions to enhance PNCs' lifetime, bringing them a step closer to their commercialization.
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Affiliation(s)
- Maning Liu
- Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 541, FI-33014 Tampere, Finland; (M.L.); (A.M.)
| | - Anastasia Matuhina
- Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 541, FI-33014 Tampere, Finland; (M.L.); (A.M.)
| | - Haichang Zhang
- Key Laboratory of Rubber-Plastic of Ministry of Education (QUST), School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China;
| | - Paola Vivo
- Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 541, FI-33014 Tampere, Finland; (M.L.); (A.M.)
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8
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Yue S, McGuire SC, Yan H, Chu YS, Cotlet M, Tong X, Wong SS. Synthesis, Characterization, and Stability Studies of Ge-Based Perovskites of Controllable Mixed Cation Composition, Produced with an Ambient Surfactant-Free Approach. ACS OMEGA 2019; 4:18219-18233. [PMID: 31720523 PMCID: PMC6844100 DOI: 10.1021/acsomega.9b02203] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 10/08/2019] [Indexed: 05/06/2023]
Abstract
In this report, we have applied a facile, ligand-free, ambient synthesis protocol toward the fabrication of not only a series of lead-free Ge-based perovskites with the general formulation of MA1-x FA x GeI3 (where x was changed from 0, 0.25, 0.5, 0.75, to 1) but also CsGeI3. Specifically, our methodology for producing ABX3 systems is generalizable, regardless of the identity of either the A site cation or the X site halide ion. Moreover, it incorporates many advantages, including (i) the possibility of efficiently generating pure Ge-based perovskite particles of any desired chemical composition, (ii) the use of readily available, commercial precursors and comparatively lower toxicity solvents, (iii) the practicality of scale up, and (iv) the elimination of the need for any superfluous organic surface ligands or surfactants. In addition to providing mechanistic insights into their formation, we have examined the chemical composition, crystallite size, morphology, surface attributes, oxidation states, and optical properties of our as-prepared perovskites using a combination of diffraction, microscopy, and spectroscopy techniques. Specifically, we noted that the optical band gap could be reliably tuned as a function of chemical composition, via the identity of the A site cation. Moreover, we have probed their stability, not only under standard storage conditions but also, for the first time, when subjected to both e-beam- and X-ray-induced degradation, using cumulative data from sources such as synchrotron-based scanning hard X-ray microscopy. Importantly, of relevance for the potential practical incorporation of these Pb-free perovskites, our work has emphasized the possibility of controlling the chemical composition within Ge-based perovskites as a means of rationally tuning their observed band gaps and optical behavior.
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Affiliation(s)
- Shiyu Yue
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, United States
| | - Scott C. McGuire
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, United States
| | - Hanfei Yan
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Yong S. Chu
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Mircea Cotlet
- Center for Functional Nanomaterials, Brookhaven
National Laboratory, Building 735, Upton, New York 11973, United States
| | - Xiao Tong
- Center for Functional Nanomaterials, Brookhaven
National Laboratory, Building 735, Upton, New York 11973, United States
| | - Stanislaus S. Wong
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, United States
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9
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Dirin D, Benin BM, Yakunin S, Krumeich F, Raino G, Frison R, Kovalenko MV. Microcarrier-Assisted Inorganic Shelling of Lead Halide Perovskite Nanocrystals. ACS NANO 2019; 13:11642-11652. [PMID: 31585035 PMCID: PMC6812064 DOI: 10.1021/acsnano.9b05481] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The conventional strategy of synthetic colloidal chemistry for bright and stable quantum dots has been the production of epitaxially matched core/shell heterostructures to mitigate the presence of deep trap states. This mindset has been shown to be incompatible with lead halide perovskite nanocrystals (LHP NCs) due to their dynamic surface and low melting point. Nevertheless, enhancements to their chemical stability are still in great demand for the deployment of LHP NCs in light-emitting devices. Rather than contend with their attributes, we propose a method in which we can utilize their dynamic, ionic lattice and uniquely defect-tolerant band structure to prepare non-epitaxial salt-shelled heterostructures that are able to stabilize these materials against their environment, while maintaining their excellent optical properties and increasing scattering to improve out-coupling efficiency. To do so, anchored LHP NCs are first synthesized through the heterogeneous nucleation of LHPs onto the surface of microcrystalline carriers, such as alkali halides. This first step stabilizes the LHP NCs against further merging, and this allows them to be coated with an additional inorganic shell through the surface-mediated reaction of amphiphilic Na and Br precursors in apolar media. These inorganically shelled NC@carrier composites offer significantly improved chemical stability toward polar organic solvents, such as γ-butyrolactone, acetonitrile, N-methylpyrrolidone, and trimethylamine, demonstrate high thermal stability with photoluminescence intensity reversibly dropping by no more than 40% at temperatures up to 120 °C, and improve compatibility with various UV-curable resins. This mindset for LHP NCs creates opportunities for their successful integration into next-generation light-emitting devices.
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Affiliation(s)
- Dmitry
N. Dirin
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Bogdan M. Benin
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Sergii Yakunin
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Frank Krumeich
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Gabriele Raino
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Ruggero Frison
- Department
of Chemistry, University of Zürich, CH-8057 Zürich, Switzerland
- Center
for X-ray Analytics, Empa − Swiss
Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Maksym V. Kovalenko
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
- E-mail:
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10
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Ng CK, Wang C, Jasieniak JJ. Synthetic Evolution of Colloidal Metal Halide Perovskite Nanocrystals. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:11609-11628. [PMID: 31256589 DOI: 10.1021/acs.langmuir.9b00855] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Metal halide perovskite semiconductor nanocrystals have emerged as a lucrative class of materials for many optoelectronic applications. By leveraging the synthetic toolboxes developed from decades of research into more traditional semiconductor nanocrystals, remarkable progress has been made across these materials in terms of their structural, compositional, and optoelectronic control. Here, we review this progress in terms of their underlying formation stages, synthetic approaches, and postsynthetic treatment steps. This assessment highlights the rapidly maturing nature of the perovskite nanocrystal field, particularly with regard to their lead-based derivatives. It further demonstrates that significant challenges remain around precisely controlling their nucleation and growth processes. In going forward, a deeper understanding of the role of precursors and ligands will significantly bolster the versatility in the size, shape, composition, and functional properties of these exciting materials.
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Affiliation(s)
- Chun Kiu Ng
- ARC Centre of Excellence in Exciton Science, Department of Materials Science and Engineering, Faculty of Engineering , Monash University , Clayton , VIC 3800 , Australia
| | - Chujie Wang
- ARC Centre of Excellence in Exciton Science, Department of Materials Science and Engineering, Faculty of Engineering , Monash University , Clayton , VIC 3800 , Australia
| | - Jacek J Jasieniak
- ARC Centre of Excellence in Exciton Science, Department of Materials Science and Engineering, Faculty of Engineering , Monash University , Clayton , VIC 3800 , Australia
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11
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Kirakosyan A, Chinh ND, Sihn MR, Jeon MG, Jeong JR, Kim D, Jang JH, Choi J. Mechanistic Insight into Surface Defect Control in Perovskite Nanocrystals: Ligands Terminate the Valence Transition from Pb 2+ to Metallic Pb 0. J Phys Chem Lett 2019; 10:4222-4228. [PMID: 31291726 DOI: 10.1021/acs.jpclett.9b01587] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Organolead halide perovskite nanocrystals (NCs) have emerged as promising materials for various optoelectronic applications. However, their practical applications have been limited due to low structural integrity and poor luminescence stability associated with fast attachment-detachment dynamics of surface capping molecules during postprocessing. At present, a framework for understanding how the functional additives interact with surface moieties of organolead halide perovskites is not available. Methylammonium lead bromide NCs without surfactants on their surface provide an ideal system to investigate the direct interactions of the perovskite with functional molecules. When the oleic acid is used in a combination with n-octylamine, its contribution to surface passivation is significantly increased by protonating the alkyl amine to the corresponding ammonium ion. Our results demonstrate that the Br vacancies at the nonpassivated surface result in a reduction of Pb2+ to Pb0 by trapping electrons generated from the exciton dissociation, which provides a main pathway for exciton trapping.
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Affiliation(s)
- Artavazd Kirakosyan
- Department of Materials Science and Engineering , Chungnam National University , 99 Daehak-ro , Yuseong-gu, Daejeon 34134 , Republic of Korea
| | - Nguyen Duc Chinh
- Department of Materials Science and Engineering , Chungnam National University , 99 Daehak-ro , Yuseong-gu, Daejeon 34134 , Republic of Korea
| | - Moon Ryul Sihn
- Department of Materials Science and Engineering , Chungnam National University , 99 Daehak-ro , Yuseong-gu, Daejeon 34134 , Republic of Korea
| | - Min-Gi Jeon
- Department of Materials Science and Engineering , Chungnam National University , 99 Daehak-ro , Yuseong-gu, Daejeon 34134 , Republic of Korea
| | - Jong-Ryul Jeong
- Department of Materials Science and Engineering , Chungnam National University , 99 Daehak-ro , Yuseong-gu, Daejeon 34134 , Republic of Korea
| | - Dojin Kim
- Department of Materials Science and Engineering , Chungnam National University , 99 Daehak-ro , Yuseong-gu, Daejeon 34134 , Republic of Korea
| | - Jae Hyuck Jang
- Electron Microscopy Research Center , Korea Basic Science Institute , 169-148 Gwahak-ro , Yuseong-gu, Daejeon 34133 , Republic of Korea
| | - Jihoon Choi
- Department of Materials Science and Engineering , Chungnam National University , 99 Daehak-ro , Yuseong-gu, Daejeon 34134 , Republic of Korea
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Kumawat NK, Liu XK, Kabra D, Gao F. Blue perovskite light-emitting diodes: progress, challenges and future directions. NANOSCALE 2019; 11:2109-2120. [PMID: 30663760 PMCID: PMC6369678 DOI: 10.1039/c8nr09885a] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 01/02/2019] [Indexed: 05/04/2023]
Abstract
Metal halide perovskites have excellent optical and electrical properties and can be easily processed via low-cost solution-based techniques like blade-coating and inkjet printing, promising a bright future for various optoelectronic applications. Recently, encouraging progress has been made in perovskite light-emitting diodes (PeLEDs). Green, red, and near-infrared PeLEDs have achieved high external quantum efficiencies of more than 20%. However, as historically blue electroluminescence remains challenging in all previous LED technologies, we are witnessing a similar case with the development of blue PeLEDs, an essential part of displays and solid-state lighting, which lag far behind those of their counterparts. Herein, we review the recent progress of blue PeLEDs and discuss the main challenges including colour instability, poor photoluminescence efficiency and emission quenching by interlayers. Future directions are provided to facilitate the development of efficient blue PeLEDs.
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Affiliation(s)
- Naresh Kumar Kumawat
- Department of Physics
, Chemistry and Biology (IFM)
, Linköping University
,
Linköping 58183
, Sweden
.
;
| | - Xiao-Ke Liu
- Department of Physics
, Chemistry and Biology (IFM)
, Linköping University
,
Linköping 58183
, Sweden
.
;
| | - Dinesh Kabra
- Department of Physics
, Indian Institute of Technology Bombay
,
Powai
, Mumbai 400076
, India
| | - Feng Gao
- Department of Physics
, Chemistry and Biology (IFM)
, Linköping University
,
Linköping 58183
, Sweden
.
;
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Bansal P, Kar P. Succinic acid-assisted stability enhancement of a colloidal organometal halide perovskite and its application as a fluorescent keypad lock. NEW J CHEM 2019. [DOI: 10.1039/c8nj06487c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
MAPbBr3 perovskite nanocrystals were synthesized using bidentate succinic acid as a capping ligand for stable fluorescence.
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Affiliation(s)
- Parul Bansal
- Department of Chemistry
- Indian Institute of Technology (IIT) Roorkee
- Haridwar
- India
| | - Prasenjit Kar
- Department of Chemistry
- Indian Institute of Technology (IIT) Roorkee
- Haridwar
- India
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Liu Y, Xu Q, Chang S, Lv Z, Huang S, Jiang F, Zhang X, Yang G, Tong X, Hao S, Ren Y. Brightly luminescent and color-tunable green-violet-emitting halide perovskite CH 3NH 3PbBr 3 colloidal quantum dots: an alternative to lighting and display technology. Phys Chem Chem Phys 2018; 20:19950-19957. [PMID: 30022197 DOI: 10.1039/c8cp02776e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Organic-inorganic hybrid perovskite (CH3NH3PbX3, X = Cl, Br, or I) quantum dots have become one of the most promising materials for optoelectronic applications. We controllably synthesized CH3NH3PbBr3 quantum dots with a tunable spectrum with the emission peaks covering the range from green (523.6 nm), blue and eventually to deep violet (409.4 nm), which is wider than that of quantum dots obtained without changing the halide component. The mechanism of the blueshift was investigated. The purified quantum dots have allowed the fabrication of efficient electroluminescence devices having a simple glass/ITO/PEDOT:PSS/TFB/CH3NH3PbBr3 quantum dot/TPBi/LiF/Al structure. CH3NH3PbBr3 quantum dots with 5-30 μL n-octylamine showed an ideal color-saturated green emission with Commission Internationale de l'Eclairage color coordinates of (0.123, 0.744) and a narrow full width at half-maximum of 19-24 nm. The photoluminescence quantum yield was up to 90.2%. In addition, it is also worth noting that the chromaticity coordinates (x, y) of CH3NH3PbBr3 quantum dots with 50-100 μL n-octylamine are (0.300, 0.344), (0.305, 0.314) and (0.323, 0.318) in the white region. All these properties indicate that these MAPbBr3 quantum dots can provide effective data support for the application of white LEDs, and may potentially be used as single-component multicolor-emitting materials, which can be applied to lighting and display technology.
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Affiliation(s)
- Yonghao Liu
- School of physics and Electrical Information Engineering, Daqing Normal University, 163000, Daqing, China.
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