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Jiang T, Ju P, Bi F, Chi J, Wen S, Jiang F, Chi Z. Target-induced enzymatic cleavage cycle amplification reaction-gated organic photoelectrochemical transistor biosensor for rapid detection of okadaic acid. Biosens Bioelectron 2024; 267:116745. [PMID: 39243448 DOI: 10.1016/j.bios.2024.116745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Revised: 08/19/2024] [Accepted: 09/03/2024] [Indexed: 09/09/2024]
Abstract
Okadaic acid (OA), a predominant toxic entity in Diarrhetic Shellfish Poisoning (DSP), carries substantial significance for both marine ecosystems and human well-being. The nascent organic photoelectrochemical transistor (OPECT) biosensor has emerged as a promising biometric methodology, poised to offer a fresh realm for the detection of marine biotoxins. In this work, a biosensor utilizing signal amplification based on Cd0.5Zn0.5S/ZnIn2S4 quantum dots (CZS/ZIS QDs) in OPECT was proposed for OA detection, where ZIS QDs were labeled on aptamer and a substantial quantity of QDs were generated via cyclic shearing facilitated through target-induced Exo I enzyme. Owing to the sensitizing influence of ZIS QDs on CZS, the photoelectric conversion efficiency was augmented, culminating in a notable anodic photocurrent upon exposure to light, thereby inducing a transformation in the channel state of the polymer poly(3,4-ethylenedioxythiophene): poly(styrene sulfonate) and consequently producing a remarkable modification in the channel current. The detection limit of the biosensor as low as 12.5 pM and a superior stability and specificity was confirmed, which also showed commendable outcomes in actual samples testing. Consequently, this study not only introduces a novel pathway for swift OA detection, but unveils a novel perspective for future expedited and convenient on-site detection of marine biotoxins.
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Affiliation(s)
- Tiantong Jiang
- Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources, No. 6 Xianxialing Road, Qingdao, 266061, PR China
| | - Peng Ju
- Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources, No. 6 Xianxialing Road, Qingdao, 266061, PR China; Shandong Key Laboratory of Marine Ecological Environment and Disaster Prevention and Mitigation, North China Sea Marine Forecasting Center of State Oceanic Administration, Qingdao, 266061, PR China.
| | - Fan Bi
- Shandong Key Laboratory of Marine Ecological Environment and Disaster Prevention and Mitigation, North China Sea Marine Forecasting Center of State Oceanic Administration, Qingdao, 266061, PR China
| | - Jingtian Chi
- Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources, No. 6 Xianxialing Road, Qingdao, 266061, PR China; College of Chemistry and Chemical Engineering, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, No. 238 Songling Road, Qingdao, 266100, PR China
| | - Siyu Wen
- Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources, No. 6 Xianxialing Road, Qingdao, 266061, PR China
| | - Fenghua Jiang
- Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources, No. 6 Xianxialing Road, Qingdao, 266061, PR China.
| | - Zhe Chi
- College of Marine Life Sciences, Ocean University of China, No. 5 Yushan Road, Qingdao, 266003, PR China.
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Wei N, Zhu H, Yan D, Yang S, Xu L, Zhang S, Dong Y, Zou Y, Zeng H. Reactivity-matched synthesis of monodisperse Ag(In,Ga)S 2 QDs with efficient luminescence. NANOSCALE 2024; 16:13654-13662. [PMID: 38963285 DOI: 10.1039/d4nr00804a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/05/2024]
Abstract
I-III-VI quantum dots (QDs) have gained widespread attention owing to their significant advantages of non-toxicity, large structural tolerance, and efficient photoluminescence potential. However, the disbalance of reactivity between the elements will result in undesired products and compromised optical properties. Reducing the activity of highly reactive group IB elements is the most common approach, but it will reduce the overall reactivity and lead to a wide dispersion of QD sizes. In this study, we propose a method to improve the overall reactivity of the reaction system using the highly active IIIA precursor InI3, which triggers rapid nucleation and promotes the formation of Ag(In,Ga)S2 (AIGS) QDs, resulting in monodisperse particle size distributions and a significantly improved photoluminescence quantum yield (PLQY) (from 12% to 72%). Furthermore, narrow band edge emission is realized by coating a gallium sulfide (GaSx) shell on the basis of obtaining high-quality AIGS QDs. The core/shell QDs exhibit a 90% PLQY with a full width at half maximum (FWHM) of only 31 nm at 530 nm. This study provides a viable design strategy to synthesize monodisperse AIGS QDs with a narrow peak width and efficient luminescence, promoting the application of AIGS QDs in the field of luminescent displays.
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Affiliation(s)
- Naiwei Wei
- Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
- Key Laboratory of Advanced Display Materials and Devices, Ministry of Industry and Information Technology, Nanjing 210094, China
| | - Hong Zhu
- Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
- Key Laboratory of Advanced Display Materials and Devices, Ministry of Industry and Information Technology, Nanjing 210094, China
| | - Danni Yan
- Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
- Key Laboratory of Advanced Display Materials and Devices, Ministry of Industry and Information Technology, Nanjing 210094, China
| | - Shuai Yang
- Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
- Key Laboratory of Advanced Display Materials and Devices, Ministry of Industry and Information Technology, Nanjing 210094, China
| | - Lili Xu
- Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
- Key Laboratory of Advanced Display Materials and Devices, Ministry of Industry and Information Technology, Nanjing 210094, China
| | - Shengli Zhang
- Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
- Key Laboratory of Advanced Display Materials and Devices, Ministry of Industry and Information Technology, Nanjing 210094, China
| | - Yuhui Dong
- Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
- Key Laboratory of Advanced Display Materials and Devices, Ministry of Industry and Information Technology, Nanjing 210094, China
| | - Yousheng Zou
- Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
- Key Laboratory of Advanced Display Materials and Devices, Ministry of Industry and Information Technology, Nanjing 210094, China
| | - Haibo Zeng
- Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
- Key Laboratory of Advanced Display Materials and Devices, Ministry of Industry and Information Technology, Nanjing 210094, China
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3
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Jeong S, Ko M, Nam S, Oh JH, Park SM, Do YR, Song JK. Enhancement mechanism of quantum yield in core/shell/shell quantum dots of ZnS-AgIn 5S 8/ZnIn 2S 4/ZnS. NANOSCALE ADVANCES 2024; 6:925-933. [PMID: 38298589 PMCID: PMC10825935 DOI: 10.1039/d3na01052j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 12/27/2023] [Indexed: 02/02/2024]
Abstract
To achieve a high quantum yield (QY) of nanomaterials suitable for optical applications, we improved the optical properties of AgIn5S8 (AIS) quantum dots (QDs) by employing an alloyed-core/inner-shell/outer-shell (ZAIS/ZIS/ZnS) structure. We also investigated the mechanism of optical transitions to clarify the improvement of QYs. In AIS, the low-energy absorption near the band edge region is attributed to the weakly allowed band gap transition, which gains oscillator strength through state intermixing and electron-phonon coupling. The main photoluminescence is also ascribed to the weakly allowed band gap transition with characteristics of self-trapped excitonic emission. With alloying/shelling processes, the weakly allowed transition is enhanced by the evolution of the electronic structures in the alloyed core, which improves the band gap emission. In shelled structures, the nonradiative process is reduced by the reconstructed lattice and passivated surface, ultimately leading to a high QY of 85% in ZAIS/ZIS/ZnS. These findings provide new insights into the optical transitions of AIS because they challenge previous conclusions. In addition, our work elucidates the mechanism behind the enhancement of QY accomplished through alloying/shelling processes, providing strategies to optimize nontoxic QDs for various applications using a green chemistry approach.
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Affiliation(s)
- Seonghyun Jeong
- Department of Chemistry, Kyung Hee University Seoul 02447 Korea
| | - Minji Ko
- Department of Chemistry, Kookmin University Seoul 02707 Korea
| | - Sangwon Nam
- Department of Chemistry, Kyung Hee University Seoul 02447 Korea
| | - Jun Hwan Oh
- Department of Chemistry, Kookmin University Seoul 02707 Korea
| | - Seung Min Park
- Department of Chemistry, Kyung Hee University Seoul 02447 Korea
| | - Young Rag Do
- Department of Chemistry, Kookmin University Seoul 02707 Korea
| | - Jae Kyu Song
- Department of Chemistry, Kyung Hee University Seoul 02447 Korea
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4
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Zhao S, Wang Q, Liu J, Hao X, Liu X, Shen W, Du Z, Wang Y, Artemyev M, Tang J. Multiple underlying images tuned by Mn-doped Zn-Cu-In-S quantum dots. RSC Adv 2023; 13:34524-34533. [PMID: 38024974 PMCID: PMC10668080 DOI: 10.1039/d3ra06373a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 11/10/2023] [Indexed: 12/01/2023] Open
Abstract
In this study, ZnS capped Cu-In-S (ZCIS) quantum dots doped with Mn ions are synthesized by a thermal injection method, with luminescence covering almost the entire visible area. The large Stokes shift effectively inhibits the self-absorption effect under luminescence, and the quantum yield of ZCIS quantum dots increased from 38% to 50% after ZnS capping and further to 69% after doping with Mn. First, red-, yellow-, and blue-emitting quantum dots were synthesized and then, polychromatic ensembles were obtained by mixing the trichromatic quantum dots in a different ratio. Using the home-built inkjet printer, multilayered and multicolor mixed patterns were obtained for information pattern storage and multilayer pattern recognition and reading.
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Affiliation(s)
- Suo Zhao
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Technology Cooperation on Hybrid Materials, Qingdao University 308 Ningxia Road Qingdao 266071 People's Republic of China
| | - Qiao Wang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Technology Cooperation on Hybrid Materials, Qingdao University 308 Ningxia Road Qingdao 266071 People's Republic of China
| | - Jin Liu
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Technology Cooperation on Hybrid Materials, Qingdao University 308 Ningxia Road Qingdao 266071 People's Republic of China
| | - Xianglong Hao
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Technology Cooperation on Hybrid Materials, Qingdao University 308 Ningxia Road Qingdao 266071 People's Republic of China
| | - Xiao Liu
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Technology Cooperation on Hybrid Materials, Qingdao University 308 Ningxia Road Qingdao 266071 People's Republic of China
| | - Wenfei Shen
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Technology Cooperation on Hybrid Materials, Qingdao University 308 Ningxia Road Qingdao 266071 People's Republic of China
| | - Zhonglin Du
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Technology Cooperation on Hybrid Materials, Qingdao University 308 Ningxia Road Qingdao 266071 People's Republic of China
| | - Yao Wang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Technology Cooperation on Hybrid Materials, Qingdao University 308 Ningxia Road Qingdao 266071 People's Republic of China
| | - Mikhail Artemyev
- Research Institute for Physical Chemical Problems of the Belarusian State University Minsk 220006 Belarus
| | - Jianguo Tang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Technology Cooperation on Hybrid Materials, Qingdao University 308 Ningxia Road Qingdao 266071 People's Republic of China
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5
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Shishodia S, Chouchene B, Gries T, Schneider R. Selected I-III-VI 2 Semiconductors: Synthesis, Properties and Applications in Photovoltaic Cells. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2889. [PMID: 37947733 PMCID: PMC10648425 DOI: 10.3390/nano13212889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 10/26/2023] [Accepted: 10/29/2023] [Indexed: 11/12/2023]
Abstract
I-III-VI2 group quantum dots (QDs) have attracted high attention in photoelectronic conversion applications, especially for QD-sensitized solar cells (QDSSCs). This group of QDs has become the mainstream light-harvesting material in QDSSCs due to the ability to tune their electronic properties through size, shape, and composition and the ability to assemble the nanocrystals on the surface of TiO2. Moreover, these nanocrystals can be produced relatively easily via cost-effective solution-based synthetic methods and are composed of low-toxicity elements, which favors their integration into the market. This review describes the methods developed to prepare I-III-VI2 QDs (AgInS2 and CuInS2 were excluded) and control their optoelectronic properties to favor their integration into QDSSCs. Strategies developed to broaden the optoelectronic response and decrease the surface-defect states of QDs in order to promote the fast electron injection from QDs into TiO2 and achieve highly efficient QDSSCs will be described. Results show that heterostructures obtained after the sensitization of TiO2 with I-III-VI2 QDs could outperform those of other QDSSCs. The highest power-conversion efficiency (15.2%) was obtained for quinary Cu-In-Zn-Se-S QDs, along with a short-circuit density (JSC) of 26.30 mA·cm-2, an open-circuit voltage (VOC) of 802 mV and a fill factor (FF) of 71%.
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Affiliation(s)
- Shubham Shishodia
- Université de Lorraine, CNRS, LRGP, F-54000 Nancy, France; (S.S.); (B.C.)
- Université de Lorraine, CNRS, IJL, F-54000 Nancy, France;
| | - Bilel Chouchene
- Université de Lorraine, CNRS, LRGP, F-54000 Nancy, France; (S.S.); (B.C.)
| | - Thomas Gries
- Université de Lorraine, CNRS, IJL, F-54000 Nancy, France;
| | - Raphaël Schneider
- Université de Lorraine, CNRS, LRGP, F-54000 Nancy, France; (S.S.); (B.C.)
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6
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Mi Y, Jiang A, Kong L, Wang J, Guo H, Luo SN. Amplified Spontaneous Emission and Lasing from Zn-Processed AgIn 5S 8 Core/Shell Quantum Dots. ACS APPLIED MATERIALS & INTERFACES 2023; 15:19330-19336. [PMID: 37018469 DOI: 10.1021/acsami.2c21648] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
I-III-VI ternary quantum dots (QDs) have emerged as favorable alternatives to the toxic II-VI QDs for optoelectronic and biological applications. However, their use as optical gain media for microlasers is still limited by a low fluorescence efficiency. Here, we demonstrate amplified spontaneous emission (ASE) and lasing from colloidal QDs of Zn-processed AgIn5S8 (AIS) for the first time. The passivation treatment on the AIS QDs yields a 3.4-fold enhancement of fluorescence quantum efficiency and a 30% increase in the two-photon absorption cross section. ASE is achieved from the AIS/ZnS core/shell QD films under both one- and two-photon pumping with a threshold fluence of ∼84.5 μJ/cm2 and 3.1 mJ/cm2, respectively. These thresholds are comparable to the best optical gain performance of Cd based-QDs reported in the literature. Moreover, we demonstrate a facile whispering-gallery-mode microlaser of the core/shell QDs with a lasing threshold of ∼233 μJ/cm2. The passivated AIS QDs can be promising optical gain media for photonic applications.
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Affiliation(s)
- Yang Mi
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People's Republic of China
| | - Anqiang Jiang
- School of New Energy and Materials, State Key Laboratory of Oil and Gas Reservoir and Exploitation, Southwest Petroleum University, Chengdu 610500, People's Republic of China
| | - Lei Kong
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People's Republic of China
| | - Jun Wang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People's Republic of China
| | - Heng Guo
- School of New Energy and Materials, State Key Laboratory of Oil and Gas Reservoir and Exploitation, Southwest Petroleum University, Chengdu 610500, People's Republic of China
| | - Sheng-Nian Luo
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People's Republic of China
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7
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Liu L, Bai B, Yang X, Du Z, Jia G. Anisotropic Heavy-Metal-Free Semiconductor Nanocrystals: Synthesis, Properties, and Applications. Chem Rev 2023; 123:3625-3692. [PMID: 36946890 DOI: 10.1021/acs.chemrev.2c00688] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
Heavy-metal (Cd, Hg, and Pb)-containing semiconductor nanocrystals (NCs) have been explored widely due to their unique optical and electrical properties. However, the toxicity risks of heavy metals can be a drawback of heavy-metal-containing NCs in some applications. Anisotropic heavy-metal-free semiconductor NCs are desirable replacements and can be realized following the establishment of anisotropic growth mechanisms. These anisotropic heavy-metal-free semiconductor NCs can possess lower toxicity risks, while still exhibiting unique optical and electrical properties originating from both the morphological and compositional anisotropy. As a result, they are promising light-emitting materials in use various applications. In this review, we provide an overview on the syntheses, properties, and applications of anisotropic heavy-metal-free semiconductor NCs. In the first section, we discuss hazards of heavy metals and introduce the typical heavy-metal-containing and heavy-metal-free NCs. In the next section, we discuss anisotropic growth mechanisms, including solution-liquid-solid (SLS), oriented attachment, ripening, templated-assisted growth, and others. We discuss mechanisms leading both to morphological anisotropy and to compositional anisotropy. Examples of morphological anisotropy include growth of nanorods (NRs)/nanowires (NWs), nanotubes, nanoplatelets (NPLs)/nanosheets, nanocubes, and branched structures. Examples of compositional anisotropy, including heterostructures and core/shell structures, are summarized. Third, we provide insights into the properties of anisotropic heavy-metal-free NCs including optical polarization, fast electron transfer, localized surface plasmon resonances (LSPR), and so on, which originate from the NCs' anisotropic morphologies and compositions. Finally, we summarize some applications of anisotropic heavy-metal-free NCs including catalysis, solar cells, photodetectors, lighting-emitting diodes (LEDs), and biological applications. Despite the huge progress on the syntheses and applications of anisotropic heavy-metal-free NCs, some issues still exist in the novel anisotropic heavy-metal-free NCs and the corresponding energy conversion applications. Therefore, we also discuss the challenges of this field and provide possible solutions to tackle these challenges in the future.
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Affiliation(s)
- Long Liu
- Key Lab for Special Functional Materials, Ministry of Education, National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, China
| | - Bing Bai
- Key Lab for Special Functional Materials, Ministry of Education, National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, China
| | - Xuyong Yang
- Key Laboratory of Advanced Display and System Applications of Ministry of Education, Shanghai University, 149 Yanchang Road, Shanghai 200072, P. R. China
| | - Zuliang Du
- Key Lab for Special Functional Materials, Ministry of Education, National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, China
| | - Guohua Jia
- School of Molecular and Life Sciences, Curtin University, Perth, WA 6102, Australia
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8
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O'Connor S, Dennany L, O'Reilly E. Evolution of nanomaterial Electrochemiluminescence luminophores towards biocompatible materials. Bioelectrochemistry 2023; 149:108286. [DOI: 10.1016/j.bioelechem.2022.108286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 09/30/2022] [Accepted: 10/02/2022] [Indexed: 11/06/2022]
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9
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Prusty D, Mansingh S, Priyadarshini N, Parida KM. Defect Control via Compositional Engineering of Zn-Cu-In-S Alloyed QDs for Photocatalytic H 2O 2 Generation and Micropollutant Degradation: Affecting Parameters, Kinetics, and Insightful Mechanism. Inorg Chem 2022; 61:18934-18949. [DOI: 10.1021/acs.inorgchem.2c02977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Deeptimayee Prusty
- Centre for Nanoscience and Nanotechnology, Siksha “O” Anusandhan (Deemed to be University), Bhubaneswar751030, Odisha, India
| | - Sriram Mansingh
- Centre for Nanoscience and Nanotechnology, Siksha “O” Anusandhan (Deemed to be University), Bhubaneswar751030, Odisha, India
| | - Newmoon Priyadarshini
- Centre for Nanoscience and Nanotechnology, Siksha “O” Anusandhan (Deemed to be University), Bhubaneswar751030, Odisha, India
| | - K. M. Parida
- Centre for Nanoscience and Nanotechnology, Siksha “O” Anusandhan (Deemed to be University), Bhubaneswar751030, Odisha, India
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Ko M, Yoon S, Eo YJ, Lee KN, Do YR. Passivation and Interlayer Effect of Zr(i-PrO) 4 on Green CuGaS 2/ZnS/Zr(i-PrO) 4@Al 2O 3 and Red CuInS 2/ZnS/Zr(i-PrO) 4@Al 2O 3 QD Hybrid Powders. NANOSCALE RESEARCH LETTERS 2022; 17:106. [PMID: 36344881 PMCID: PMC9640527 DOI: 10.1186/s11671-022-03741-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 10/20/2022] [Indexed: 06/16/2023]
Abstract
Broadband emissive I-III-VI quantum dots (QDs) are synthesized as efficient and stable I-III-VI QDs to be used as eco-friendly luminescent materials in various applications. Here, we introduce the additional passivation of zirconium isopropoxide (Zr(i-PrO)4) to improve the optical properties and environmental stability of green-emitting CuGaS2/ZnS (G-CGS/ZnS) and red-emitting CuInS2/ZnS (R-CIS/ZnS) QDs. The photoluminescence quantum yield (PLQY) of both resultant Zr(i-PrO)4-coated G-CGS/ZnS and R-CIS/ZnS QDs reaches similar values of ~ 95%. In addition, the photostability and thermal-stability of G-CGS/ZnS/Zr(i-PrO)4 and R-CIS/ZnS/Zr(i-PrO)4 QDs are improved by reducing the ligand loss via encapsulation of the ligand-coated QD surface with Zr(i-PrO)4. It is also proved that the Zr(i-PrO)4-passivated interlayer mitigates the further degradation of I-III-V QDs from ligand loss even under harsh conditions during additional hydrolysis reaction of aluminum tri-sec-butoxide (Al(sec-BuO)3), forming easy-to-handle G-CGS/ZnS and R-CIS/ZnS QD-embedded Al2O3 powders. Therefore, the introduction of a Zr(i-PrO)4 complex layer potentially provides a strong interlayer to mitigate degradation of I-III-VI QD-embedded Al2O3 hybrid powders as well as passivation layer for protecting I-III-VI QD.
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Affiliation(s)
- Minji Ko
- Department of Chemistry, Kookmin University, Seoul, 02707, Republic of Korea
| | - Soyeon Yoon
- Department of Chemistry, Kookmin University, Seoul, 02707, Republic of Korea
| | - Yun Jae Eo
- Department of Chemistry, Kookmin University, Seoul, 02707, Republic of Korea
| | - Keyong Nam Lee
- Department of Chemistry, Kookmin University, Seoul, 02707, Republic of Korea
| | - Young Rag Do
- Department of Chemistry, Kookmin University, Seoul, 02707, Republic of Korea.
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11
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Hoisang W, Uematsu T, Torimoto T, Kuwabata S. Surface ligand chemistry on quaternary Ag(In x Ga 1-x )S 2 semiconductor quantum dots for improving photoluminescence properties. NANOSCALE ADVANCES 2022; 4:849-857. [PMID: 36131838 PMCID: PMC9419514 DOI: 10.1039/d1na00684c] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 12/08/2021] [Indexed: 06/15/2023]
Abstract
Ternary and quaternary semiconductor quantum dots (QDs) are candidates for cadmium-free alternatives. Among these, semiconductors containing elements from groups 11, 13, and 16 (i.e., I-III-VI2) are attracting increasing attention since they are direct semiconductors whose bandgap energies in the bulk state are tunable between visible and near infrared. The quaternary system of alloys consisting of silver indium sulfide (AgInS2; bandgap energy: E g = 1.8 eV) and silver gallium sulfide (AgGaS2; E g = 2.4 eV) (i.e., Ag[In x Ga1-x ]S2 (AIGS)) enables bandgap tuning over a wide range of visible light. However, the photoluminescence (PL) quantum yield (10-20%) of AIGS QDs is significantly lower than that of AgInS2 (60-70%). The present study investigates how to improve the PL quantum yield of AIGS QDs via surface ligand engineering. Firstly, the use of a mixture of oleic acid and oleylamine, instead of only oleylamine, as the solvent for the QD synthesis was attempted, and a threefold improvement of the PL quantum yield was achieved. Subsequently, a post-synthetic ligand exchange was performed. Although the addition of alkylphosphine, which is known as an L-type ligand, improved the PL efficiency only by 20%, the use of metal halides, which are categorized as Z-type ligands, demonstrated a twofold to threefold improvement of the PL quantum yield, with the highest value reaching 73.4%. The same procedure was applied to the band-edge emitting core/shell-like QDs that were synthesized in one batch based on our previous findings. While the as-prepared core/shell-like QDs exhibited a PL quantum yield of only 9%, the PL quantum yield increased to 49.5% after treatment with metal halides.
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Affiliation(s)
- Watcharaporn Hoisang
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University 2-1 Yamada-oka Suita Osaka 565-0871 Japan
| | - Taro Uematsu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University 2-1 Yamada-oka Suita Osaka 565-0871 Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University 2-1 Yamada-oka Suita Osaka 565-0871 Japan
| | - Tsukasa Torimoto
- Department of Materials Chemistry, Graduate School of Engineering, Nagoya University Chikusa-ku Nagoya 464-8603 Japan
| | - Susumu Kuwabata
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University 2-1 Yamada-oka Suita Osaka 565-0871 Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University 2-1 Yamada-oka Suita Osaka 565-0871 Japan
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12
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Hoisang W, Uematsu T, Torimoto T, Kuwabata S. Luminescent Quaternary Ag(In xGa 1-x)S 2/GaS y Core/Shell Quantum Dots Prepared Using Dithiocarbamate Compounds and Photoluminescence Recovery via Post Treatment. Inorg Chem 2021; 60:13101-13109. [PMID: 34410714 DOI: 10.1021/acs.inorgchem.1c01513] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Cadmium-free quantum dots (QDs) consisting of silver-indium-gallium-sulfide (AIGS) quaternary semiconductors were successfully synthesized using a metal-dithiocarbamate complex with sufficiently high reactivity to produce metal sulfides. The introduction of a gallium diethyldithiocarbamate precursor decreased the reaction temperature to produce active intermediates, which were subsequently converted into AIGS QDs at 150 °C with silver and indium acetates. Because of the low reaction temperature, AIGS QDs with a tetragonal crystal phase were produced selectively, which favorably generated band-edge emission whose full width at half-maximum is smaller than 40 nm after they were coated with gallium sulfide (GaSy) shells. The compositional indium/gallium ratio was varied by changing the mixing ratio of the precursors used for the synthesis of the AIGS core, and the band-edge photoluminescence (PL) generated from the AIGS/GaSy core/shell QDs was blue-shifted with an increase in the gallium content in the core. Consequently, a pure green emission centered at 518 nm was obtained with a PL quantum yield as high as 68%.
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Affiliation(s)
- Watcharaporn Hoisang
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita 565-0871, Osaka, Japan
| | - Taro Uematsu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita 565-0871, Osaka, Japan.,Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, 2-1 Yamada-oka, Suita 565-0871, Osaka, Japan
| | - Tsukasa Torimoto
- Department of Materials Chemistry, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan
| | - Susumu Kuwabata
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita 565-0871, Osaka, Japan.,Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, 2-1 Yamada-oka, Suita 565-0871, Osaka, Japan
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13
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Hsieh YT, Lin YF, Liu WR. Enhancing the Water Resistance and Stability of CsPbBr 3 Perovskite Quantum Dots for Light-Emitting-Diode Applications through Encapsulation in Waterproof Polymethylsilsesquioxane Aerogels. ACS APPLIED MATERIALS & INTERFACES 2020; 12:58049-58059. [PMID: 33300781 DOI: 10.1021/acsami.0c18371] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Highly stable all-inorganic perovskite quantum dot/polymethylsilsesquioxane aerogel (CsPbBr3/PMSQ AG) composites were first produced using two-step hot-injection and encapsulation processes by embedding green-emitting CsPbBr3 PQDs into modified hydrophobic mesoporous silica AGs. The unique structure of the composites not only considerably enhances the chemical stability of CsPbBr3 PQDs against moisture, humidity, and blue-light irradiation in air but also prevents anion exchange reactions during light-emitting diode (LED) manufacturing processes. In addition, the composition-optimized CsPbBr3/PMSQ AG exhibited excellent stability when soaked in water for more than 14 days and retained half of its initial intensity. Finally, white LED devices were fabricated by combining a blue-emitting GaN-based chip, green-emitting CsPbBr3/PMSQ AG, and red-emitting K2SiF6:Mn4+ phosphors.
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Affiliation(s)
- Yi-Ting Hsieh
- Department of Chemical Engineering, R&D Center for Membrane Technology, Center for Circular Economy, Chung Yuan Christian University, 200 Chung Pei Road, Chung Li District Taoyuan City, Taiwan 32023, Republic of China
| | - Yi-Feng Lin
- Department of Chemical Engineering, R&D Center for Membrane Technology, Center for Circular Economy, Chung Yuan Christian University, 200 Chung Pei Road, Chung Li District Taoyuan City, Taiwan 32023, Republic of China
| | - Wei-Ren Liu
- Department of Chemical Engineering, R&D Center for Membrane Technology, Center for Circular Economy, Chung Yuan Christian University, 200 Chung Pei Road, Chung Li District Taoyuan City, Taiwan 32023, Republic of China
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14
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Palchoudhury S, Ramasamy K, Gupta A. Multinary copper-based chalcogenide nanocrystal systems from the perspective of device applications. NANOSCALE ADVANCES 2020; 2:3069-3082. [PMID: 36134292 PMCID: PMC9418475 DOI: 10.1039/d0na00399a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 06/18/2020] [Indexed: 05/17/2023]
Abstract
Multinary chalcogenide semiconductor nanocrystals are a unique class of materials as they offer flexibility in composition, structure, and morphology for controlled band gap and optical properties. They offer a vast selection of materials for energy conversion, storage, and harvesting applications. Among the multinary chalcogenides, Cu-based compounds are the most attractive in terms of sustainability as many of them consist of earth-abundant elements. There has been immense progress in the field of Cu-based chalcogenides for device applications in the recent years. This paper reviews the state of the art synthetic strategies and application of multinary Cu-chalcogenide nanocrystals in photovoltaics, photocatalysis, light emitting diodes, supercapacitors, and luminescent solar concentrators. This includes the synthesis of ternary, quaternary, and quinary Cu-chalcogenide nanocrystals. The review also highlights some emerging experimental and computational characterization approaches for multinary Cu-chalcogenide semiconductor nanocrystals. It discusses the use of different multinary Cu-chalcogenide compounds, achievements in device performance, and the recent progress made with multinary Cu-chalcogenide nanocrystals in various energy conversion and energy storage devices. The review concludes with an outlook on some emerging and future device applications for multinary Cu-chalcogenides, such as scalable luminescent solar concentrators and wearable biomedical electronics.
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Affiliation(s)
| | | | - Arunava Gupta
- Department of Chemistry and Biochemistry, The University of Alabama AL USA
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15
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Jiao M, Li Y, Jia Y, Li C, Bian H, Gao L, Cai P, Luo X. Strongly emitting and long-lived silver indium sulfide quantum dots for bioimaging: Insight into co-ligand effect on enhanced photoluminescence. J Colloid Interface Sci 2020; 565:35-42. [PMID: 31931297 DOI: 10.1016/j.jcis.2020.01.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/19/2019] [Accepted: 01/03/2020] [Indexed: 10/25/2022]
Abstract
Nanoscale ternary chalcogenides have attracted increasing research interest due to their merits of tunable properties and diverse applications in energy and biomedical fields. In this article, silver indium sulfide quantum dots supported by glutathione and polyethyleneimine as dual-ligands have been synthesized through an environmentally friendly and reproducible aqueous method. An emission quantum yield up to 37.2% has been achieved by glutathione as co-ligand bearing electron-rich groups, much higher than that of polyethyleneimine coated quantum dots (4.97%). Both spectroscopic and structural characterizations demonstrate that the photoluminescence enhancement is attributed to change of surface properties by glutathione as co-ligand. Dynamic light scattering (DLS) results and thermogravimetric analysis (TGA) reveal that glutathione covers the QDs with a higher density on the nanocrystal surface than other co-ligands. Therefore, it can effectively passivate the surface trap centers, thus decreasing the non-radiative emission. Moreover, the resultant silver indium sulfide quantum dots present surprisingly long lifetime of 3.69 μs, excellent fluorescent stability and low cytotoxicity, which enables them to be ideal candidate for real-time bioimaging.
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Affiliation(s)
- Mingxia Jiao
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering. Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Yun Li
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering. Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Yuxiu Jia
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering. Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Chenxi Li
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering. Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Hao Bian
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering. Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Liting Gao
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering. Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Peng Cai
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, PR China
| | - Xiliang Luo
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering. Qingdao University of Science and Technology, Qingdao 266042, PR China.
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16
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Marin R, Skripka A, Huang YC, Loh TAJ, Mazeika V, Karabanovas V, Chua DHC, Dong CL, Canton P, Vetrone F. Influence of halide ions on the structure and properties of copper indium sulphide quantum dots. Chem Commun (Camb) 2020; 56:3341-3344. [PMID: 32090219 DOI: 10.1039/c9cc08291c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In the synthesis of CuInS2 quantum dots (QDs), the halide ions present in the copper salts influence the QD growth and optical properties. X-ray absorption spectroscopy allowed rationalizing the halide incorporation in the lattice and the dependence of electronic properties of the material on the ion's polarizability and interaction with hydrophobic moieties.
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Affiliation(s)
- Riccardo Marin
- Università Ca' Foscari Venezia, Dipartimento di Scienze Molecolari e Nanosistemi, via Torino 155/B, 30170 Venezia-Mestre, Italy. and Institut National de la Recherche Scientifique, Centre Énergie, Matériaux et Télécommunications (INRS - EMT), Université du Québec, 1650 Boul. Lionel-Boulet, Varennes, Québec J3X 1S2, Canada.
| | - Artiom Skripka
- Institut National de la Recherche Scientifique, Centre Énergie, Matériaux et Télécommunications (INRS - EMT), Université du Québec, 1650 Boul. Lionel-Boulet, Varennes, Québec J3X 1S2, Canada.
| | - Yu-Cheng Huang
- Department of Physics, Tamkang University, Tamsui, 25137, Taiwan
| | - Tamie A J Loh
- Department of Material Science and Engineering, National University of Singapore, 9 Engineering Drive 1, 117575, Singapore
| | - Viktoras Mazeika
- Biomedical Physics Laboratory, National Cancer Institute, P. Baublio St. 3b, LT-08406 Vilnius, Lithuania
| | - Vitalijus Karabanovas
- Biomedical Physics Laboratory, National Cancer Institute, P. Baublio St. 3b, LT-08406 Vilnius, Lithuania and Department of Chemistry and Bioengineering, Vilnius Gediminas Technical University, Sauletekio Ave. 11, LT-10223 Vilnius, Lithuania
| | - Daniel H C Chua
- Department of Material Science and Engineering, National University of Singapore, 9 Engineering Drive 1, 117575, Singapore
| | - Chung-Li Dong
- Department of Physics, Tamkang University, Tamsui, 25137, Taiwan
| | - Patrizia Canton
- Università Ca' Foscari Venezia, Dipartimento di Scienze Molecolari e Nanosistemi, via Torino 155/B, 30170 Venezia-Mestre, Italy.
| | - Fiorenzo Vetrone
- Institut National de la Recherche Scientifique, Centre Énergie, Matériaux et Télécommunications (INRS - EMT), Université du Québec, 1650 Boul. Lionel-Boulet, Varennes, Québec J3X 1S2, Canada.
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17
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Li S, Zha T, Gong X, Hu Q, Yu M, Wu J, Li R, Wang J, Chen Y. Cu–Cd–Zn–S/ZnS core/shell quantum dot/polyvinyl alcohol flexible films for white light-emitting diodes. RSC Adv 2020; 10:24425-24433. [PMID: 35516201 PMCID: PMC9055132 DOI: 10.1039/d0ra03540h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 06/10/2020] [Indexed: 01/30/2023] Open
Abstract
We present a facile route for the synthesis of water-soluble Cu–Cd–Zn–S/ZnS core/shell quantum dots (QDs) by simple pH regulation. The PL spectra of Cu–Cd–Zn–S/ZnS core/shell quantum dots can cover the whole visible light region in the case of only two ratios of Cu/Cd/Zn. The emission wavelength of Cu–Cd–Zn–S/ZnS QDs can be conveniently tuned from 474 to 515 and 548 to 629 nm by adjusting the pH value when the ratios of Cu/Cd/Zn are fixed at 1 : 5 : 80 and 1 : 5 : 10, respectively. It is worth noting that under the condition of a constant Cu/Cd/Zn ratio, the UV-vis absorption spectra do not change with the fluorescence spectra, indicating that the band gap of QDs remains unchanged during the change of pH value. The photoluminescence (PL) quantum yield of the as-prepared QDs with yellow emission is up to 76%. The QDs also show excellent chemical stability after the deposition of the ZnS shell. Luminescent and flexible films are fabricated by combining Cu–Cd–Zn–S QDs with polyvinyl alcohol (PVA). The QD/PVA flexible hybrid films are successfully applied on top of a conventional blue InGaN chip for remote-type warm-white LEDs. As-fabricated warm-white LEDs exhibit a higher color rendering index (CRI) of about 89.2 and a correlated color temperature (CCT) of 4308 K. We present a facile route for the synthesis of water-soluble Cu–Cd–Zn–S/ZnS core/shell quantum dots (QDs) by simple pH regulation.![]()
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Affiliation(s)
- Shenjie Li
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Hefei
- People's Republic of China
| | - Tianyong Zha
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Hefei
- People's Republic of China
| | - Xiaoyu Gong
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Hefei
- People's Republic of China
| | - Qi Hu
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Hefei
- People's Republic of China
| | - Minghui Yu
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Hefei
- People's Republic of China
| | - Jinyu Wu
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Hefei
- People's Republic of China
| | - Ruolan Li
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Hefei
- People's Republic of China
| | - Jiaming Wang
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Hefei
- People's Republic of China
| | - Yanyan Chen
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Hefei
- People's Republic of China
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18
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Wang T, Guan X, Zhang H, Ji W. Exploring Electronic and Excitonic Processes toward Efficient Deep-Red CuInS 2/ZnS Quantum-Dot Light-Emitting Diodes. ACS APPLIED MATERIALS & INTERFACES 2019; 11:36925-36930. [PMID: 31524372 DOI: 10.1021/acsami.9b13108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The electroluminescence mechanisms in the Cd-free CuInS2/ZnS quantum dot-based light-emitting diodes (QLEDs) are systematically investigated through transient electroluminescence measurements. The results demonstrate that the characteristics of hole transporting layers (HTLs) determine the QLEDs to be activated by the direct charge injection or the energy transfer. Moreover, both the energy level alignment between the HTL and quantum dot and the carrier mobility properties of the HTLs are critical factors to affect the device performance. By choosing the suitable HTL, such as 4,4'-bis(9-carbazolyl)-2,2'-biphenyl, highly efficient deep-red (emission peak at ∼650 nm) CuInS2/ZnS QLEDs based on the single HTL can be obtained with a peak current efficiency and luminance of ∼2.0 cd/A and nearby 3000 cd/m2, respectively.
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Affiliation(s)
- Ting Wang
- Key Lab of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics , Jilin University , Changchun 130012 , China
| | - Xin Guan
- Key Lab of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics , Jilin University , Changchun 130012 , China
| | - Hanzhuang Zhang
- Key Lab of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics , Jilin University , Changchun 130012 , China
| | - Wenyu Ji
- Key Lab of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics , Jilin University , Changchun 130012 , China
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19
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Li F, Wei J, Liao G, Guo C, Huang Y, Zhang Q, Jin X, Jiang S, Tang Q, Li Q. Quaternary quantum dots with gradient valence band for all-inorganic perovskite solar cells. J Colloid Interface Sci 2019; 549:33-41. [PMID: 31015054 DOI: 10.1016/j.jcis.2019.04.052] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 04/03/2019] [Accepted: 04/17/2019] [Indexed: 11/30/2022]
Abstract
The severe interface charge recombination caused by the large energy difference between perovskite material and carbon electrode significantly limits the further performance improvement of the all-inorganic perovskite solar cells (PSCs). We apply innovatively multilayer of quaternary Ag-In-Ga-S (AIGS) quantum dots (QDs) with cascade-like valence bands as hole-transport materials to assemble all-inorganic PSCs, and the resultant all-inorganic PSCs exhibit a power conversion efficiency (PCE) of 8.46%, which is enhanced by 20.9% in comparison with 7% for the pristine device. The high performance of the PSCs indicates that sequential layers of AIGS QDs with cascade-like energy levels can facilitate the charge separation, reduce the barrier the holes crossing and suppress the charge recombination. Stack of QDs with cascade-like energy levels provide solution-processed PSCs with a new method to enhance device performance.
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Affiliation(s)
- Feng Li
- Jiangxi Engineering Laboratory for Optoelectronics Testing Technology, Nanchang Hangkong University, Nanchang 330063, PR China
| | - Jiahu Wei
- Jiangxi Engineering Laboratory for Optoelectronics Testing Technology, Nanchang Hangkong University, Nanchang 330063, PR China
| | - Guoqing Liao
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, PR China
| | - Chenyang Guo
- Jiangxi Engineering Laboratory for Optoelectronics Testing Technology, Nanchang Hangkong University, Nanchang 330063, PR China
| | - Yan Huang
- Jiangxi Engineering Laboratory for Optoelectronics Testing Technology, Nanchang Hangkong University, Nanchang 330063, PR China
| | - Qin Zhang
- Jiangxi Engineering Laboratory for Optoelectronics Testing Technology, Nanchang Hangkong University, Nanchang 330063, PR China
| | - Xiao Jin
- Jiangxi Engineering Laboratory for Optoelectronics Testing Technology, Nanchang Hangkong University, Nanchang 330063, PR China; School of Physics Science and Technology, Lingnan Normal University, Zhanjiang 524048, PR China
| | - Shuiqing Jiang
- Jiangxi Engineering Laboratory for Optoelectronics Testing Technology, Nanchang Hangkong University, Nanchang 330063, PR China
| | - Qunwei Tang
- Institute of New Energy Technology, College of Information Science and Technology, Jinan University, Guangzhou 510632, PR China.
| | - Qinghua Li
- Jiangxi Engineering Laboratory for Optoelectronics Testing Technology, Nanchang Hangkong University, Nanchang 330063, PR China; School of Physics Science and Technology, Lingnan Normal University, Zhanjiang 524048, PR China.
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20
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Sobiech M, Bujak P, Luliński P, Pron A. Semiconductor nanocrystal-polymer hybrid nanomaterials and their application in molecular imprinting. NANOSCALE 2019; 11:12030-12074. [PMID: 31204762 DOI: 10.1039/c9nr02585e] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Quantum dots (QDs) are attractive semiconductor fluorescent nanomaterials with remarkable optical and electrical properties. The broad absorption spectra and high stability of QD transducers are advantageous for sensing and bioimaging. Molecular imprinting is a technique for manufacturing synthetic polymeric materials with a high recognition ability towards a target analyte. The high selectivity of the molecularly imprinted polymers (MIPs) is a result of the fabrication process based on the template-tailored polymerization of functional monomers. The three-dimensional cavities formed in the polymer network can serve as the recognition elements of sensors because of their specificity and stability. Appending specific molecularly imprinted layers to QDs is a promising strategy to enhance the stability, sensitivity, and selective fluorescence response of the resulting sensors. By merging the benefits of MIPs and QDs, inventive optical sensors are constructed. In this review, the recent synthetic strategies used for the fabrication of QD nanocrystals emphasizing various approaches to effective functionalization in aqueous environments are discussed followed by a detailed presentation of current advances in QD conjugated MIPs (MIP-QDs). Frontiers in manufacturing of specific imprinted layers of these nanomaterials are presented and factors affecting the specific behaviour of an MIP shell are identified. Finally, current limitations of MIP-QDs are defined and prospects are outlined to amplify the capability of MIP-QDs in future sensing.
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Affiliation(s)
- Monika Sobiech
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Piotr Bujak
- Warsaw University of Technology, Faculty of Chemistry, Noakowskiego 3, 00-664 Warsaw, Poland.
| | - Piotr Luliński
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Adam Pron
- Warsaw University of Technology, Faculty of Chemistry, Noakowskiego 3, 00-664 Warsaw, Poland.
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21
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Zn-Ag-In-S quantum dot sensitized solar cells with enhanced efficiency by tuning defects. J Colloid Interface Sci 2019; 547:267-274. [DOI: 10.1016/j.jcis.2019.04.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 03/19/2019] [Accepted: 04/03/2019] [Indexed: 01/30/2023]
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22
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Feng J, Yang X, Li R, Yang X, Feng G. The Composition-Dependent Photoluminescence Properties of Non-Stoichiometric Zn xAg yInS 1.5+x+0.5y Nanocrystals. MICROMACHINES 2019; 10:mi10070439. [PMID: 31266136 PMCID: PMC6680743 DOI: 10.3390/mi10070439] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 06/18/2019] [Accepted: 06/24/2019] [Indexed: 11/16/2022]
Abstract
A facile hot injection approach to synthesize high-quality non-stoichiometric ZnxAgyInS1.5+x+0.5y nanocrystals (NCs) in the size range of 2.8–3.1 nm was presented. The fluorescence spectra had single band gap features, and indicated the formation of alloy states rather than simple composite structures. The chemical compositions, photoluminescence (PL) emission wavelengths, and quantum yields of ZnxAgyInS1.5+x+0.5y nanocrystals were significantly influenced by the concentration of an organic capping agent. The appropriate proportion of 1-dodecanthiol in the precursor prevented the precipitation, increased the fluorescence quantum yield, and improved their optical properties. The proper ratio of capping agent allowed Zn, Ag, and In to form a better crystallinity and compositional homogeneity of ZnxAgyInS1.5+x+0.5y nanocrystals. The photoluminescence was tunable from blue to red in the range of 450–700 nm as the Ag content changed independently. The PL and absorption spectra of ZnxAgyInS1.5+x+0.5y nanocrystals showed a significant blue shift with the decrease of Ag content in the precursor. As there were no obvious differences on the average particle sizes of ZnxAgyInS1.5+x+0.5y samples, these results fully revealed the composition-dependent photoluminescence properties of ZnxAgyInS1.5+x+0.5y nanocrystals. The relative quantum yield reached 35%. The fluorescence lifetimes (τ1=115–148 ns and τ2=455–483 ns) were analogous to those of AgInS2 and (AgIn)xZn2(1−x)S2.
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Affiliation(s)
- Jian Feng
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, Guizhou, China
- Department of Chemistry, School of Basic Medical Science, Guizhou Medical University, 9 Beijing Road, Guiyang 550004, Guizhou, China
| | - Xiaosheng Yang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, Guizhou, China
| | - Rong Li
- Department of Chemistry, School of Basic Medical Science, Guizhou Medical University, 9 Beijing Road, Guiyang 550004, Guizhou, China
| | - Xianjiong Yang
- Department of Chemistry, School of Basic Medical Science, Guizhou Medical University, 9 Beijing Road, Guiyang 550004, Guizhou, China
| | - Guangwei Feng
- Department of Chemistry, School of Basic Medical Science, Guizhou Medical University, 9 Beijing Road, Guiyang 550004, Guizhou, China.
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23
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Song J, Zhang Y, Dai Y, Hu J, Zhu L, Xu X, Yu Y, Li H, Yao B, Zhou H. Polyelectrolyte-Mediated Nontoxic AgGa xIn 1- xS 2 QDs/Low-Density Lipoprotein Nanoprobe for Selective 3D Fluorescence Imaging of Cancer Stem Cells. ACS APPLIED MATERIALS & INTERFACES 2019; 11:9884-9892. [PMID: 30779876 DOI: 10.1021/acsami.9b00121] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Cancer stem cells, which are a population of cancer cells sharing common properties with normal stem cells, have strong self-renewal ability and multi-lineage differentiation potential to trigger tumor proliferation, metastases, and recurrence. From this, targeted therapy for cancer stem cells may be one of the most promising strategies for comprehensive treatment of tumors in the future. We design a facile approach to establish the colon cancer stem cells-selective fluorescent probe based on the low-density lipoprotein (LDL) and the novel AgGa xIn(1- x)S2 quantum dots (AGIS QDs). The AGIS QDs with a high crystallinity are obtained for the first time via cation-exchange protocol of Ga3+ to In3+ starting from parent AgInS2 QDs. Photoluminescence peak of AGIS QDs can be turned from 502 to 719 nm by regulating the reaction conditions, with the highest quantum yield up to 37%. Subsequently, AGIS QDs-conjugated LDL nanocomposites (NCs) are fabricated, in which a cationic polyelectrolyte was used as a coupling reagent to guarantee the electrostatic self-assembly. The structural integrity and physicochemical properties of the LDL-QDs NCs are found to be maintained in vitro, and the NCs exhibit remarkable biocompatibility. The LDL-QDs can be selectively delivered into cancer stem cells that overexpress LDL receptor, and three-dimensional imaging of cancer stem cells is realized. The results of this study not only demonstrate the versatility of nature-derived lipoprotein nanoparticles, but also confirm the feasibility of electrostatic conjugation using cationic polyelectrolyte, allowing reseachers to design nanoarchitectures for targeted diagnosis and treatment of cancer.
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Affiliation(s)
- Jiangluqi Song
- School of Physics and Optoelectronic Engineering , Xidian University , Xi'an 710071 , China
| | - Yan Zhang
- Central Laboratory , First Affiliated Hospital of Anhui Medical University , Hefei 230022 , China
| | - Yiwen Dai
- Department of General Surgery , The Second Hospital of Anhui Medical University , Hefei 230601 , China
| | - Jinhang Hu
- Shaanxi Collaborative Innovation Center of Chinese Medicinal Resources Industrialization , Shaanxi University of Chinese Medicine , Xianyang 712046 , China
| | - Lixin Zhu
- Central Laboratory , First Affiliated Hospital of Anhui Medical University , Hefei 230022 , China
| | - Xiaoliang Xu
- Key Laboratory of Strongly-Coupled Quantum Matter Physics, Chinese Academy of Sciences, and Department of Physics , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Yue Yu
- School of Physics and Optoelectronic Engineering , Xidian University , Xi'an 710071 , China
| | - Huan Li
- School of Physics and Optoelectronic Engineering , Xidian University , Xi'an 710071 , China
| | - Bo Yao
- School of Physics and Optoelectronic Engineering , Xidian University , Xi'an 710071 , China
| | - Huixin Zhou
- School of Physics and Optoelectronic Engineering , Xidian University , Xi'an 710071 , China
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24
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Kim JH, Kim KH, Yoon SY, Kim Y, Lee SH, Kim HS, Yang H. Tunable Emission of Bluish Zn-Cu-Ga-S Quantum Dots by Mn Doping and Their Electroluminescence. ACS APPLIED MATERIALS & INTERFACES 2019; 11:8250-8257. [PMID: 30698949 DOI: 10.1021/acsami.8b20894] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
On the basis of bluish-emitting double-shelled quantum dots (QDs) of Zn-Cu-Ga-S (ZCGS)/ZnS/ZnS, Mn doping into ZCGS host with different Mn/Cu concentrations is implemented via surface adsorption and lattice diffusion. The resulting double-shelled Mn-doped ZCGS (ZCGS/Mn) QDs exhibit a distinct Mn2+ 4T1-6A1 emission as a consequence of effective lattice incorporation simultaneously with host intragap states-involving emissions of free-to-bound and donor-acceptor pair recombinations. The relative contribution of Mn emission to the overall photoluminescence (PL) is consistently proportional to its concentration, resulting in tunable PL from bluish, white, to reddish white. Regardless of Mn doping and its concentration, all QDs possess high PL quantum yield levels of 74-79%. Those undoped and doped QDs are then employed as an emitting layer (EML) of all-solution-processed QD-light-emitting diodes (QLEDs) with hybrid charge transport layers and their electroluminescence (EL) is compared. Compared to undoped QDs, doped analogues give rise to a huge spectral disparity of EL versus PL, specifically showing a near-complete quenching of Mn2+ EL. This unexpected observation is rationalized primarily by considering unbalanced carrier injection to QD EML on the basis of energetic alignment of the present QLED and rapid trapping of holes injected at intragap states of QDs.
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Affiliation(s)
- Jong-Hoon Kim
- Department of Materials Science and Engineering , Hongik University , Seoul 04066 , Korea
| | - Kyung-Hye Kim
- Department of Materials Science and Engineering , Hongik University , Seoul 04066 , Korea
| | - Suk-Young Yoon
- Department of Materials Science and Engineering , Hongik University , Seoul 04066 , Korea
| | - Yuri Kim
- Department of Materials Science and Engineering , Hongik University , Seoul 04066 , Korea
| | - Sun-Hyoung Lee
- Department of Materials Science and Engineering , Hongik University , Seoul 04066 , Korea
| | - Hyun-Sik Kim
- Department of Materials Science and Engineering , Hongik University , Seoul 04066 , Korea
| | - Heesun Yang
- Department of Materials Science and Engineering , Hongik University , Seoul 04066 , Korea
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25
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Bujak P, Wróbel Z, Penkala M, Kotwica K, Kmita A, Gajewska M, Ostrowski A, Kowalik P, Pron A. Highly Luminescent Ag–In–Zn–S Quaternary Nanocrystals: Growth Mechanism and Surface Chemistry Elucidation. Inorg Chem 2019; 58:1358-1370. [DOI: 10.1021/acs.inorgchem.8b02916] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Piotr Bujak
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Zbigniew Wróbel
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Mateusz Penkala
- Institute of Chemistry, Faculty of Mathematics, Physics and Chemistry, University of Silesia, Szkolna 9, 40-007 Katowice, Poland
| | - Kamil Kotwica
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Angelika Kmita
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland
| | - Marta Gajewska
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland
| | - Andrzej Ostrowski
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Patrycja Kowalik
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
- Faculty of Chemistry, University of Warsaw, Pasteura 1 Str., PL-02-093 Warsaw, Poland
| | - Adam Pron
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
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26
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Yarema O, Perevedentsev A, Ovuka V, Baade P, Volk S, Wood V, Yarema M. Colloidal Phase-Change Materials: Synthesis of Monodisperse GeTe Nanoparticles and Quantification of Their Size-Dependent Crystallization. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2018; 30:6134-6143. [PMID: 30270986 DOI: 10.1021/acs.chemmater.7b04710] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 08/19/2018] [Indexed: 05/28/2023]
Abstract
Phase-change memory materials refer to a class of materials that can exist in amorphous and crystalline phases with distinctly different electrical or optical properties, as well as exhibit outstanding crystallization kinetics and optimal phase transition temperatures. This paper focuses on the potential of colloids as phase-change memory materials. We report a novel synthesis for amorphous GeTe nanoparticles based on an amide-promoted approach that enables accurate size control of GeTe nanoparticles between 4 and 9 nm, narrow size distributions down to 9-10%, and synthesis upscaling to reach multigram chemical yields per batch. We then quantify the crystallization phase transition for GeTe nanoparticles, employing high-temperature X-ray diffraction, differential scanning calorimetry, and transmission electron microscopy. We show that GeTe nanoparticles crystallize at higher temperatures than the bulk GeTe material and that crystallization temperature increases with decreasing size. We can explain this size-dependence using the entropy of crystallization model and classical nucleation theory. The size-dependences quantified here highlight possible benefits of nanoparticles for phase-change memory applications.
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Affiliation(s)
- Olesya Yarema
- Materials and Device Engineering Group, Department of Information Technology and Electrical Engineering, ETH Zurich, Gloriastrasse 35, CH-8092 Zurich, Switzerland
| | - Aleksandr Perevedentsev
- Polymer Technology, Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 5, CH-8093 Zurich, Switzerland
| | - Vladimir Ovuka
- Materials and Device Engineering Group, Department of Information Technology and Electrical Engineering, ETH Zurich, Gloriastrasse 35, CH-8092 Zurich, Switzerland
| | - Paul Baade
- Materials and Device Engineering Group, Department of Information Technology and Electrical Engineering, ETH Zurich, Gloriastrasse 35, CH-8092 Zurich, Switzerland
| | - Sebastian Volk
- Materials and Device Engineering Group, Department of Information Technology and Electrical Engineering, ETH Zurich, Gloriastrasse 35, CH-8092 Zurich, Switzerland
| | - Vanessa Wood
- Materials and Device Engineering Group, Department of Information Technology and Electrical Engineering, ETH Zurich, Gloriastrasse 35, CH-8092 Zurich, Switzerland
| | - Maksym Yarema
- Materials and Device Engineering Group, Department of Information Technology and Electrical Engineering, ETH Zurich, Gloriastrasse 35, CH-8092 Zurich, Switzerland
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27
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Hu Y, Huang Y, Wang Y, Li C, Wong W, Ye X, Sun D. A photoelectrochemical immunosensor based on gold nanoparticles/ZnAgInS quaternary quantum dots for the high-performance determination of hepatitis B virus surface antigen. Anal Chim Acta 2018; 1035:136-145. [PMID: 30224131 DOI: 10.1016/j.aca.2018.06.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Revised: 05/29/2018] [Accepted: 06/07/2018] [Indexed: 11/25/2022]
Abstract
ZnAgInS quaternary quantum dots were prepared using glutathione as the capped reagent. Gold nanoparticles (GNPs) were integrated with ZnAgInS QDs to provide a GNPs/ZnAgInS QDs nanocomposite. The morphological image, component and crystal structure of GNPs/ZnAgInS QDs were characterized by transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). A glassy carbon electrode surface was coated with GNPs/ZnAgInS QDs nanocomposites to construct an interface for immobilizing the antibody of hepatitis B virus surface antigen (anti-HBsAg). By employing GNPs/ZnAgInS QDs as a photoactive element, a photoelectrochemical immunosensor for hepatitis B virus surface antigen (HBsAg) was developed. The results indicate that gold nanoparticles can dramatically enhance the photocurrent response of ZnAgInS QDs and thus improving the sensing performances of the immunosensor. The experimental conditions including incubation time, incubation temperature, and ascorbic acid concentration were optimized. The relative photocurrent decline [Ri = ΔI/I0= (I0 - I)/I0] shows a linear relationship to the logarithm of HBsAg concentration [lg(c, ng mL-1)] in the range from 0.005 to 30 ng mL-1. A detection limit of 0.5 pg mL-1 was obtained. The immunosensor shows excellent sensitivity, selectivity, stability and reproducibility. The HBsAg concentrations in clinical serum samples were also accurately determined with this new photoelectrochemical immunosensor.
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Affiliation(s)
- Ye Hu
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Yajiao Huang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Yanying Wang
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, 430074, China; National Demonstration Center for Experimental Ethnopharmacology Education (South-Central University for Nationalities), Wuhan, 430074, China
| | - Chunya Li
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, 430074, China; National Demonstration Center for Experimental Ethnopharmacology Education (South-Central University for Nationalities), Wuhan, 430074, China
| | - WingLeung Wong
- School of Chemical and Environmental Engineering, International Healthcare Innovation Institute (Jiangmen), Wuyi University, Jiangmen, 529020, China
| | - Xiaoxue Ye
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, 430074, China; National Demonstration Center for Experimental Ethnopharmacology Education (South-Central University for Nationalities), Wuhan, 430074, China.
| | - Dong Sun
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China.
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28
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I-III-VI chalcogenide semiconductor nanocrystals: Synthesis, properties, and applications. CHINESE JOURNAL OF CATALYSIS 2018. [DOI: 10.1016/s1872-2067(18)63052-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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29
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Kshirsagar AS, Khanna PK. Reaction Tailoring for Synthesis of Phase-Pure Nanocrystals of AgInSe2
, Cu3
SbSe3
and CuSbSe2. ChemistrySelect 2018. [DOI: 10.1002/slct.201702986] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Anuraj S. Kshirsagar
- Department of Applied Chemistry; Defence Institute of Advanced Technology (DIAT); Girinagar Pune-411025, Maharashtra India
| | - Pawan. K. Khanna
- Department of Applied Chemistry; Defence Institute of Advanced Technology (DIAT); Girinagar Pune-411025, Maharashtra India
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30
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Chen B, Pradhan N, Zhong H. From Large-Scale Synthesis to Lighting Device Applications of Ternary I-III-VI Semiconductor Nanocrystals: Inspiring Greener Material Emitters. J Phys Chem Lett 2018; 9:435-445. [PMID: 29303589 DOI: 10.1021/acs.jpclett.7b03037] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Quantum dots with fabulous size-dependent and color-tunable emissions remained as one of the most exciting inventories in nanomaterials for the last 3 decades. Even though a large number of such dot nanocrystals were developed, CdSe still remained as unbeatable and highly trusted lighting nanocrystals. Beyond these, the ternary I-III-VI family of nanocrystals emerged as the most widely accepted greener materials with efficient emissions tunable in visible as well as NIR spectral windows. These bring the high possibility of their implementation as lighting materials acceptable to the community and also to the environment. Keeping these in mind, in this Perspective, the latest developments of ternary I-III-VI nanocrystals from their large-scale synthesis to device applications are presented. Incorporating ZnS, tuning the composition, mixing with other nanocrystals, and doping with Mn ions, light-emitting devices of single color as well as for generating white light emissions are also discussed. In addition, the future prospects of these materials in lighting applications are also proposed.
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Affiliation(s)
- Bingkun Chen
- Beijing Engineering Research Centre of Mixed Reality and Advanced Display, School of Optics and Photonics, Beijing Institute of Technology , Beijing 100081, China
| | - Narayan Pradhan
- Department of Materials Science, Indian Association for the Cultivation of Science , Kolkata, India 700032
| | - Haizheng Zhong
- Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems, School of Materials Science & Engineering, Beijing Institute of Technology , Beijing 100081, China
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31
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Mansur AAP, Mansur HS, Carvalho SM, Caires AJ. One-Pot Aqueous Synthesis of Fluorescent Ag-In-Zn-S Quantum Dot/Polymer Bioconjugates for Multiplex Optical Bioimaging of Glioblastoma Cells. CONTRAST MEDIA & MOLECULAR IMAGING 2017; 2017:3896107. [PMID: 29259535 PMCID: PMC5702976 DOI: 10.1155/2017/3896107] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 09/04/2017] [Accepted: 09/13/2017] [Indexed: 11/17/2022]
Abstract
Cancer research has experienced astonishing advances recently, but cancer remains a major threat because it is one of the leading causes of death worldwide. Glioblastoma (GBM) is the most malignant brain tumor, where the early diagnosis is vital for longer survival. Thus, this study reports the synthesis of novel water-dispersible ternary AgInS2 (AIS) and quaternary AgInS2-ZnS (ZAIS) fluorescent quantum dots using carboxymethylcellulose (CMC) as ligand for multiplexed bioimaging of malignant glioma cells (U-87 MG). Firstly, AgInS2 core was prepared using a one-pot aqueous synthesis stabilized by CMC at room temperature and physiological pH. Then, an outer layer of ZnS was grown and thermally annealed to improve their optical properties and split the emission range, leading to core-shell alloyed nanostructures. Their physicochemical and optical properties were characterized, demonstrating that luminescent monodispersed AIS and ZAIS QDs were produced with average sizes of 2.2 nm and 4.3 nm, respectively. Moreover, the results evidenced that they were cytocompatible using in vitro cell viability assays towards human embryonic kidney cell line (HEK 293T) and U-87 MG cells. These AIS and ZAIS successfully behaved as fluorescent nanoprobes (red and green, resp.) allowing multiplexed bioimaging and biolabeling of costained glioma cells using confocal microscopy.
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Affiliation(s)
- Alexandra A. P. Mansur
- Center of Nanoscience, Nanotechnology and Innovation (CeNanoI), Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Herman S. Mansur
- Center of Nanoscience, Nanotechnology and Innovation (CeNanoI), Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Sandhra M. Carvalho
- Center of Nanoscience, Nanotechnology and Innovation (CeNanoI), Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
- Department of Preventive Veterinary Medicine, Veterinary School, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
- Department of Physiology and Biophysics, ICB, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Anderson J. Caires
- Center of Nanoscience, Nanotechnology and Innovation (CeNanoI), Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
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32
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Zhu J, Mei S, Yang W, Zhang G, Chen Q, Zhang W, Guo R. Tunable emission of Cu (Mn)-doped ZnInS quantum dots via dopant interaction. J Colloid Interface Sci 2017; 506:27-35. [DOI: 10.1016/j.jcis.2017.06.043] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 06/12/2017] [Accepted: 06/14/2017] [Indexed: 10/19/2022]
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33
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Jiang T, Shen M, Dai P, Wu M, Yu X, Li G, Xu X, Zeng H. Cd-free Cu-Zn-In-S/ZnS quantum dots@SiO 2 multiple cores nanostructure: preparation and application for white LEDs. NANOTECHNOLOGY 2017; 28:435702. [PMID: 28829337 DOI: 10.1088/1361-6528/aa878c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The work reports the fabrication of Cu doped Zn-In-S (CZIS) alloy quantum dots (QDs) using dodecanethiol and oleic acid as stabilizing ligands. With the increase of doped Cu element, the photoluminescence (PL) peak is monotonically red shifted. After coating ZnS shell, the PL quantum yield of CZIS QDs can reach 78%. Using reverse micelle microemulsion method, CZIS/ZnS QDs@SiO2 multi-core nanospheres were synthesized to improve the colloidal stability and avoid the aggregation of QDs. The obtained multi-core nanospheres were dispersed in curing adhesive, and applied as a color conversion layer in down converted light-emitting diodes. After encapsulation in curing adhesive, the newly designed LEDs show artifically regulated color coordinates with varying the weight ratio of green QDs and red QDs, and the concentrations of these two types of QDs. Moreover, natural white and warm white LEDs with correlated color temperature of 5287, 6732, 2731, and 3309 K can be achieved, which indicates that CZIS/ZnS QDs@SiO2 nanostructures are promising color conversion layer material for solid-state lighting application.
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Affiliation(s)
- Tongtong Jiang
- School of Physics and Materials Science, Anhui University, Hefei 230601, People's Republic of China
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34
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Kobosko SM, Jara DH, Kamat PV. AgInS 2-ZnS Quantum Dots: Excited State Interactions with TiO 2 and Photovoltaic Performance. ACS APPLIED MATERIALS & INTERFACES 2017; 9:33379-33388. [PMID: 28157296 DOI: 10.1021/acsami.6b14604] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Multinary quantum dots such as AgInS2 and alloyed AgInS2-ZnS are an emerging class of semiconductor materials for applications in photovoltaic and display devices. The nanocrystals of (AgInS2)x-(ZnS)1-x (for x = 0.67) exhibit a broad emission with a maximum at 623 nm and interact strongly with TiO2 nanostructures by injecting electrons from the excited state. The electron transfer rate constant as determined from transient absorption spectroscopy was 1.8 × 1010 s-1. The photovoltaic performance was evaluated over a period of a few weeks to demonstrate the stability of AgInS2-ZnS when utilized as sensitizers in solar cells. We report a power conversion efficiency of 2.25% of our champion cell 1 month after its fabrication. The limitations of AgInS2-ZnS nanocrystals in achieving greater solar cell efficiency are discussed.
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Affiliation(s)
- Steven M Kobosko
- Radiation Laboratory, ‡Department of Chemical and Biomolecular Engineering, and §Department of Chemistry and Biochemistry, University of Notre Dame , Notre Dame, Indiana 46556, United States
| | - Danilo H Jara
- Radiation Laboratory, ‡Department of Chemical and Biomolecular Engineering, and §Department of Chemistry and Biochemistry, University of Notre Dame , Notre Dame, Indiana 46556, United States
| | - Prashant V Kamat
- Radiation Laboratory, ‡Department of Chemical and Biomolecular Engineering, and §Department of Chemistry and Biochemistry, University of Notre Dame , Notre Dame, Indiana 46556, United States
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35
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Zhang YW, Wu G, Dang H, Ma K, Chen S. Multicolored Mixed-Organic-Cation Perovskite Quantum Dots (FAxMA1–xPbX3, X = Br and I) for White Light-Emitting Diodes. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b02309] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ya-Wen Zhang
- State Key Laboratory of Materials-Oriented
Chemical Engineering, College of Chemical Engineering, Jiangsu Key
Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, 5 Xin Mofan Road, Nanjing 210009, P. R. China
| | - Guan Wu
- State Key Laboratory of Materials-Oriented
Chemical Engineering, College of Chemical Engineering, Jiangsu Key
Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, 5 Xin Mofan Road, Nanjing 210009, P. R. China
| | - Hui Dang
- State Key Laboratory of Materials-Oriented
Chemical Engineering, College of Chemical Engineering, Jiangsu Key
Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, 5 Xin Mofan Road, Nanjing 210009, P. R. China
| | - Kangzhe Ma
- State Key Laboratory of Materials-Oriented
Chemical Engineering, College of Chemical Engineering, Jiangsu Key
Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, 5 Xin Mofan Road, Nanjing 210009, P. R. China
| | - Su Chen
- State Key Laboratory of Materials-Oriented
Chemical Engineering, College of Chemical Engineering, Jiangsu Key
Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, 5 Xin Mofan Road, Nanjing 210009, P. R. China
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36
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Han NS, Yoon HC, Jeong S, Oh JH, Park SM, Do YR, Song JK. Origin of highly efficient photoluminescence in AgIn 5S 8 nanoparticles. NANOSCALE 2017; 9:10285-10291. [PMID: 28696455 DOI: 10.1039/c7nr02380d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The photoluminescence of AgIn5S8 nanoparticles was examined to clarify the emissive relaxation processes of defect states and to explain the highly efficient photoluminescence of defect states. The large Stokes shift of the defect emission was explained by strong electron-phonon coupling in the nanoparticles. Steady-state and time-resolved photoluminescence spectroscopy indicated two emissive defect states with characteristic emission energies and lifetimes. Change of the surface-to-volume ratio in the nanoparticles affected the relative contribution of the two states, implying that defect emission in higher energy was attributable to surface-related defects. The defect emission in lower energy was attributable to intrinsic defects, which were also present in bulk. The quantum yield of the surface defects was larger than that of the intrinsic defects, which accounted for the unusually high quantum yield of AgIn5S8 nanoparticles, although the origin of emission was the defect states, not the exciton recombination found in typical semiconductor nanoparticles.
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Affiliation(s)
- Noh Soo Han
- Department of Chemistry, Kyung Hee University, Seoul 130-701, Korea.
| | - Hee Chang Yoon
- Department of Chemistry, Kookmin University, Seoul 136-702, Korea.
| | - Seonghyun Jeong
- Department of Chemistry, Kyung Hee University, Seoul 130-701, Korea.
| | - Ji Hye Oh
- Department of Chemistry, Kookmin University, Seoul 136-702, Korea.
| | - Seung Min Park
- Department of Chemistry, Kyung Hee University, Seoul 130-701, Korea.
| | - Young Rag Do
- Department of Chemistry, Kookmin University, Seoul 136-702, Korea.
| | - Jae Kyu Song
- Department of Chemistry, Kyung Hee University, Seoul 130-701, Korea.
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37
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Circadian-tunable Perovskite Quantum Dot-based Down-Converted Multi-Package White LED with a Color Fidelity Index over 90. Sci Rep 2017; 7:2808. [PMID: 28584229 PMCID: PMC5459832 DOI: 10.1038/s41598-017-03063-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 04/21/2017] [Indexed: 11/25/2022] Open
Abstract
New metrics of the color and circadian performances of down-converted white light-emitting diodes (DC-WLEDs) are rapidly becoming popular in smart lighting systems. This is due to the increased desire for accurate analytical methods to measure the effects of newly developed quantum dot (QD)-based lighting on the vision, color, and circadian sensors of retina cells in the human eye. In this regard, a two-measure system known as technical memorandum TM-30-2015 (Illuminating Engineering Society of North America), encompassing the color fidelity index (CFI, Rf) and the color gamut index (CGI, Rg), has been developed as a new metrics of color to replace the currently utilized color rendering index (CRI, Ra). In addition, the tunability of the circadian efficacy of radiation (CER) is now more important due to its effect on the control of melatonin suppression/secretion, resetting of the central/local clocks of individuals given their daily cycles, and benefits to human health. In this paper, we developed and analyzed six-colored perovskite (Pe; cyan, green, yellowish green, amber, orange, and red colors) QDs-based multi-package WLED, and optimized the SPDs of tunable PeQD-based multi-package WLEDs in terms of promising human-centric lighting device, given its optimized visual energy, color qualities and health-promoting effects.
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38
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Wang L, Kang X, Pan D. Gram-Scale Synthesis of Hydrophilic PEI-Coated AgInS 2 Quantum Dots and Its Application in Hydrogen Peroxide/Glucose Detection and Cell Imaging. Inorg Chem 2017; 56:6122-6130. [PMID: 28474898 DOI: 10.1021/acs.inorgchem.7b00053] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Assisted with polyethylenimine, 4.0 L of water-soluble AgInS2 quantum dots (AIS QDs) were successfully synthesized in an electric pressure cooker. As-prepared QDs exhibit yellow emission with a photoluminescence (PL) quantum yield up to 32%. The QDs also show excellent water/buffer stability. The highly luminescent AIS QDs are used to explore their dual-functional behavior: detection of hydrogen peroxide (H2O2)/glucose and cell imaging. The amino-functionalized AIS QDs show high sensitivity and specificity for H2O2 and glucose with detection limits of 0.42 and 0.90 μM, respectively. A linear correlation was established between PL intensity and concentration of H2O2 in the ranges of 0.5-10 μM and 10-300 μM, while the linear ranges were 1-10 μM and 10-1000 μM for detection of glucose. The AIS QDs reveal negligible cytotoxicity on HeLa cells. Furthermore, the luminescence of AIS QDs gives the function of optical imaging.
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Affiliation(s)
- Lan Wang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Road, Changchun, Jilin 130022, P. R. China.,University of the Chinese Academy of Sciences , Beijing 10049, P. R. China
| | - Xiaojiao Kang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Road, Changchun, Jilin 130022, P. R. China
| | - Daocheng Pan
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Road, Changchun, Jilin 130022, P. R. China
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39
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Coughlan C, Ibáñez M, Dobrozhan O, Singh A, Cabot A, Ryan KM. Compound Copper Chalcogenide Nanocrystals. Chem Rev 2017; 117:5865-6109. [PMID: 28394585 DOI: 10.1021/acs.chemrev.6b00376] [Citation(s) in RCA: 331] [Impact Index Per Article: 47.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This review captures the synthesis, assembly, properties, and applications of copper chalcogenide NCs, which have achieved significant research interest in the last decade due to their compositional and structural versatility. The outstanding functional properties of these materials stems from the relationship between their band structure and defect concentration, including charge carrier concentration and electronic conductivity character, which consequently affects their optoelectronic, optical, and plasmonic properties. This, combined with several metastable crystal phases and stoichiometries and the low energy of formation of defects, makes the reproducible synthesis of these materials, with tunable parameters, remarkable. Further to this, the review captures the progress of the hierarchical assembly of these NCs, which bridges the link between their discrete and collective properties. Their ubiquitous application set has cross-cut energy conversion (photovoltaics, photocatalysis, thermoelectrics), energy storage (lithium-ion batteries, hydrogen generation), emissive materials (plasmonics, LEDs, biolabelling), sensors (electrochemical, biochemical), biomedical devices (magnetic resonance imaging, X-ray computer tomography), and medical therapies (photochemothermal therapies, immunotherapy, radiotherapy, and drug delivery). The confluence of advances in the synthesis, assembly, and application of these NCs in the past decade has the potential to significantly impact society, both economically and environmentally.
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Affiliation(s)
- Claudia Coughlan
- Department of Chemical Sciences and Bernal Institute, University of Limerick , Limerick, Ireland
| | - Maria Ibáñez
- Catalonia Energy Research Institute - IREC, Sant Adria de Besos , Jardins de les Dones de Negre n.1, Pl. 2, 08930 Barcelona, Spain
| | - Oleksandr Dobrozhan
- Catalonia Energy Research Institute - IREC, Sant Adria de Besos , Jardins de les Dones de Negre n.1, Pl. 2, 08930 Barcelona, Spain.,Department of Electronics and Computing, Sumy State University , 2 Rymskogo-Korsakova st., 40007 Sumy, Ukraine
| | - Ajay Singh
- Materials Physics & Applications Division: Center for Integrated Nanotechnologies, Los Alamos National Laboratory , Los Alamos, New Mexico 87545, United States
| | - Andreu Cabot
- Catalonia Energy Research Institute - IREC, Sant Adria de Besos , Jardins de les Dones de Negre n.1, Pl. 2, 08930 Barcelona, Spain.,ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
| | - Kevin M Ryan
- Department of Chemical Sciences and Bernal Institute, University of Limerick , Limerick, Ireland
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Zhang B, Yang C, Gao Y, Wang Y, Bu C, Hu S, Liu L, Demir HV, Qu J, Yong KT. Engineering Quantum Dots with Different Emission Wavelengths and Specific Fluorescence Lifetimes for Spectrally and Temporally Multiplexed Imaging of Cells. Nanotheranostics 2017; 1:131-140. [PMID: 29071182 PMCID: PMC5646722 DOI: 10.7150/ntno.18989] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Accepted: 02/17/2017] [Indexed: 11/21/2022] Open
Abstract
In this work, a proof-of-concept study was performed to examine the potential of spectrally and temporally multiplexed imaging of cells by using quantum dots (QDs). The CdSe and ZAIS QDs with different emission wavelengths and well-separated fluorescence lifetimes were prepared to provide 2-dimensional information. After incubation with cells, the same type of QDs with different emission wavelengths were distinguishable in spectral imaging while different types of QDs with similar emission wavelengths but well-separated fluorescence lifetimes were resolvable in fluorescence lifetime imaging. For cells co-stained with dye and different types of QDs, the fluorescence lifetime imaging microscopy (FLIM) images showed spatially separated patterns that can be split into channel images by using the software-based time gates. Overall, the results demonstrate the feasibility of combining the 2-dimensional encoded QDs for spectrally and temporally multiplexed imaging. This method can be extended to other QDs and organic dyes to maximize the number of measurable species in multiplexed imaging and sensing applications.
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Affiliation(s)
- Butian Zhang
- School of Electrical and Electronic Engineering, Nanyang Technological University, 639798, Singapore
| | - Chengbin Yang
- School of Electrical and Electronic Engineering, Nanyang Technological University, 639798, Singapore
| | - Yuan Gao
- School of Electrical and Electronic Engineering, Nanyang Technological University, 639798, Singapore
| | - Yue Wang
- Changchun University of Science and Technology, Changchun, 130022, P. R. China
| | - Chengfei Bu
- Changchun University of Science and Technology, Changchun, 130022, P. R. China
| | - Siyi Hu
- Changchun University of Science and Technology, Changchun, 130022, P. R. China
| | - Liwei Liu
- Changchun University of Science and Technology, Changchun, 130022, P. R. China
| | - Hilmi Volkan Demir
- School of Electrical and Electronic Engineering, Nanyang Technological University, 639798, Singapore
| | - Junle Qu
- Key Laboratory of Optoelectronics Devices and Systems of Ministry of Education /Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Ken-Tye Yong
- School of Electrical and Electronic Engineering, Nanyang Technological University, 639798, Singapore
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Gugula K, Entrup M, Stegemann L, Seidel S, Pöttgen R, Strassert CA, Bredol M. Solid Solution Quantum Dots with Tunable Dual or Ultrabroadband Emission for LEDs. ACS APPLIED MATERIALS & INTERFACES 2017; 9:521-528. [PMID: 27933758 DOI: 10.1021/acsami.6b08190] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Quantum dots that efficiently emit white light directly or feature a "candle-like" orange photoluminescence with a high Stokes shift are presented. The key to obtaining these unique emission properties is through controlled annealing of the core Cu-In-Ga-S quantum dots in the presence of zinc ions, thus forming Zn-Cu-In-Ga-S solid solutions with different distributions of the substitution and dopant elements. The as-obtained nanocrystals feature excellent quantum yields of up to 82% with limited or even eliminated reabsorption and a color rendering index of bare particles of up to 88, enabling the production of high-quality white LEDs using a single color converter layer. Furthermore, the color properties can be tuned by changing the experimental conditions as well as by varying the excitation wavelength. The multicomponent luminescence mechanism is discussed in detail based on similar literature reports. White LEDs with unparalleled color quality and competitive luminous efficacies are presented herein.
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Affiliation(s)
- Krzysztof Gugula
- Department of Chemical Engineering, Münster University of Applied Sciences , Stegerwaldstraße 39, 48565 Steinfurt, Germany
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster , Corrensstraße 30, 48149 Münster, Germany
| | - Michael Entrup
- Physikalisches Institut, Westfälische Wilhelms-Universität Münster , Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
| | - Linda Stegemann
- Physikalisches Institut and Center for Nanotechnology, Westfälische Wilhelms-Universität Münster , Heisenbergstraße 11, 48149 Münster, Germany
| | - Stefan Seidel
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster , Corrensstraße 30, 48149 Münster, Germany
| | - Rainer Pöttgen
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster , Corrensstraße 30, 48149 Münster, Germany
| | - Cristian A Strassert
- Physikalisches Institut and Center for Nanotechnology, Westfälische Wilhelms-Universität Münster , Heisenbergstraße 11, 48149 Münster, Germany
| | - Michael Bredol
- Department of Chemical Engineering, Münster University of Applied Sciences , Stegerwaldstraße 39, 48565 Steinfurt, Germany
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42
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Girma WM, Fahmi MZ, Permadi A, Abate MA, Chang JY. Synthetic strategies and biomedical applications of I–III–VI ternary quantum dots. J Mater Chem B 2017; 5:6193-6216. [DOI: 10.1039/c7tb01156c] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
In this review, we discuss recent advances of I–III–VI QDs with a major focus on synthesis and biomedical applications; advantages include low toxicity and fluorescent tuning in the biological window.
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Affiliation(s)
- Wubshet Mekonnen Girma
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei
- Republic of China
| | | | - Adi Permadi
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei
- Republic of China
| | - Mulu Alemayehu Abate
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei
- Republic of China
| | - Jia-Yaw Chang
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei
- Republic of China
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43
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Gabka G, Bujak P, Kotwica K, Ostrowski A, Lisowski W, Sobczak JW, Pron A. Luminophores of tunable colors from ternary Ag–In–S and quaternary Ag–In–Zn–S nanocrystals covering the visible to near-infrared spectral range. Phys Chem Chem Phys 2017; 19:1217-1228. [DOI: 10.1039/c6cp07008f] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report an efficient synthesis of Ag–In–S and Ag–In–Zn–S nanocrystals with strong photoluminescence (QY = 59%) in the visible to near-infrared range.
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Affiliation(s)
- Grzegorz Gabka
- Faculty of Chemistry
- Warsaw University of Technology
- 00-664 Warsaw
- Poland
| | - Piotr Bujak
- Faculty of Chemistry
- Warsaw University of Technology
- 00-664 Warsaw
- Poland
| | - Kamil Kotwica
- Faculty of Chemistry
- Warsaw University of Technology
- 00-664 Warsaw
- Poland
| | - Andrzej Ostrowski
- Faculty of Chemistry
- Warsaw University of Technology
- 00-664 Warsaw
- Poland
| | - Wojciech Lisowski
- Institute of Physical Chemistry
- Polish Academy of Science
- 01-224 Warsaw
- Poland
| | - Janusz W. Sobczak
- Institute of Physical Chemistry
- Polish Academy of Science
- 01-224 Warsaw
- Poland
| | - Adam Pron
- Faculty of Chemistry
- Warsaw University of Technology
- 00-664 Warsaw
- Poland
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44
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Ji WQ, Zhang QH, Wang CF, Chen S. Cu–In–S/ZnS Quantum Dots Embedded in Polyvinylpyrrolidone (PVP) Solids for White Light-Emitting Diodes (LEDs). Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.6b02698] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wen-Qing Ji
- State Key Laboratory of Materials-Oriented
Chemical Engineering and College of Chemical Engineering, Nanjing Tech University, 5 Xin Mofan Road, Nanjing 210009, People’s Republic of China
| | - Qiu-Hong Zhang
- State Key Laboratory of Materials-Oriented
Chemical Engineering and College of Chemical Engineering, Nanjing Tech University, 5 Xin Mofan Road, Nanjing 210009, People’s Republic of China
| | - Cai-Feng Wang
- State Key Laboratory of Materials-Oriented
Chemical Engineering and College of Chemical Engineering, Nanjing Tech University, 5 Xin Mofan Road, Nanjing 210009, People’s Republic of China
| | - Su Chen
- State Key Laboratory of Materials-Oriented
Chemical Engineering and College of Chemical Engineering, Nanjing Tech University, 5 Xin Mofan Road, Nanjing 210009, People’s Republic of China
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45
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Liu Q, Cao F, Wu F, Chen S, Xiong J, Li L. Partial Ion Exchange Derived 2D Cu-Zn-In-S Nanosheets as Sensitizers of 1D TiO 2 Nanorods for Boosting Solar Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2016; 8:26235-26243. [PMID: 27626303 DOI: 10.1021/acsami.6b08648] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A facile route for the fabrication of a novel ZnS shell/Cu-Zn-In-S nanosheets/TiO2 nanorods heterojunction was reported in this work. Especially, the quaternary Cu-Zn-In-S nanosheets were synthesized creatively from the ternary ZnIn2S4 nanosheets by partial exchange reaction, leading to substantial enhancement on the light absorbance. Such heterojunction could increase the surface area and accelerate the charge transfer resulting from its hierarchical 2D/1D structure and favorable energy bands. Moreover, the ZnS coating acted as a passivation layer as well as a potential barrier, significantly suppressing the interface recombination. The above synergistic effects resulted in the largely increased photocurrent density from 0.34 mA cm-2 for the pristine TiO2 to 0.81 mA cm-2 for the heterojunction at 0.8 V vs RHE.
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Affiliation(s)
- Qiong Liu
- College of Physics, Optoelectronics and Energy, Collaborative Innovation Center of Suzhou Nano Science and Technology, Jiangsu Key Laboratory of Thin Films, Center for Energy Conversion Materials & Physics (CECMP), Soochow University , Suzhou 215006, P. R. China
| | - Fengren Cao
- College of Physics, Optoelectronics and Energy, Collaborative Innovation Center of Suzhou Nano Science and Technology, Jiangsu Key Laboratory of Thin Films, Center for Energy Conversion Materials & Physics (CECMP), Soochow University , Suzhou 215006, P. R. China
| | - Fangli Wu
- College of Physics, Optoelectronics and Energy, Collaborative Innovation Center of Suzhou Nano Science and Technology, Jiangsu Key Laboratory of Thin Films, Center for Energy Conversion Materials & Physics (CECMP), Soochow University , Suzhou 215006, P. R. China
| | - Shimou Chen
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Jie Xiong
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China , Chengdu 610054, P. R. China
| | - Liang Li
- College of Physics, Optoelectronics and Energy, Collaborative Innovation Center of Suzhou Nano Science and Technology, Jiangsu Key Laboratory of Thin Films, Center for Energy Conversion Materials & Physics (CECMP), Soochow University , Suzhou 215006, P. R. China
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46
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Berends AC, Rabouw FT, Spoor FCM, Bladt E, Grozema FC, Houtepen AJ, Siebbeles LDA, de Mello Donegá C. Radiative and Nonradiative Recombination in CuInS2 Nanocrystals and CuInS2-Based Core/Shell Nanocrystals. J Phys Chem Lett 2016; 7:3503-9. [PMID: 27552674 DOI: 10.1021/acs.jpclett.6b01668] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Luminescent copper indium sulfide (CIS) nanocrystals are a potential solution to the toxicity issues associated with Cd- and Pb-based nanocrystals. However, the development of high-quality CIS nanocrystals has been complicated by insufficient knowledge of the electronic structure and of the factors that lead to luminescence quenching. Here we investigate the exciton decay pathways in CIS nanocrystals using time-resolved photoluminescence and transient absorption spectroscopy. Core-only CIS nanocrystals with low quantum yield are compared to core/shell nanocrystals (CIS/ZnS and CIS/CdS) with higher quantum yield. Our measurements support the model of photoluminescence by radiative recombination of a conduction band electron with a localized hole. Moreover, we find that photoluminescence quenching in low-quantum-yield nanocrystals involves initially uncoupled decay pathways for the electron and hole. The electron decay pathway determines whether the exciton recombines radiatively or nonradiatively. The development of high-quality CIS nanocrystals should therefore focus on the elimination of electron traps.
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Affiliation(s)
- Anne C Berends
- Condensed Matter and Interfaces, Debye Institute for Nanomaterials Science, Utrecht University , P.O. Box 80 000, 3508 TA Utrecht, The Netherlands
| | - Freddy T Rabouw
- Condensed Matter and Interfaces, Debye Institute for Nanomaterials Science, Utrecht University , P.O. Box 80 000, 3508 TA Utrecht, The Netherlands
| | - Frank C M Spoor
- Optoelectronic Materials Section, Department of Chemical Engineering, Delft University of Technology , Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Eva Bladt
- Electron Microscopy for Materials Science (EMAT), University of Antwerp , Groenenborgerlaan 171, B-2020 Antwerp, Belgium
| | - Ferdinand C Grozema
- Optoelectronic Materials Section, Department of Chemical Engineering, Delft University of Technology , Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Arjan J Houtepen
- Optoelectronic Materials Section, Department of Chemical Engineering, Delft University of Technology , Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Laurens D A Siebbeles
- Optoelectronic Materials Section, Department of Chemical Engineering, Delft University of Technology , Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Celso de Mello Donegá
- Condensed Matter and Interfaces, Debye Institute for Nanomaterials Science, Utrecht University , P.O. Box 80 000, 3508 TA Utrecht, The Netherlands
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47
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Li C, Zang Z, Chen W, Hu Z, Tang X, Hu W, Sun K, Liu X, Chen W. Highly pure green light emission of perovskite CsPbBr 3 quantum dots and their application for green light-emitting diodes. OPTICS EXPRESS 2016; 24:15071-15078. [PMID: 27410658 DOI: 10.1364/oe.24.015071] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
All-inorganic perovskite CsPbBr3 quantum dots (QDs) with an emission peak of around 520 nm were synthesized by a hot-injection method, and were systematically studied as green phosphor for light-emitting diodes (LEDs). Highly pure green light with an emission peak of 534 nm and a full-width at half-maximum (FWHM) about 20 nm was achieved using CsPbBr3 QDs and GaN LEDs. Commission Internationale Ed I'Eclairage coordinate of the fabricated green LEDs was (0.203, 0.757). Compared to GaN LEDs, the current-voltage characteristic of the green LED did not show any degradation. Moreover, the green LEDs displayed a luminous efficiency of 31.92 lm/W under an injection current of 10 mA.
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48
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Erdem T, Demir HV. Colloidal nanocrystals for quality lighting and displays: milestones and recent developments. NANOPHOTONICS 2016; 5:74-95. [DOI: 10.1515/nanoph-2016-0009] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
AbstractRecent advances in colloidal synthesis of nanocrystals have enabled high-quality high-efficiency light-emitting diodes, displays with significantly broader color gamut, and optically-pumped lasers spanning the whole visible regime. Here we review these colloidal platforms covering the milestone studies together with recent developments. In the review, we focus on the devices made of colloidal quantum dots (nanocrystals), colloidal quantum rods (nanorods), and colloidal quantum wells (nanoplatelets) as well as those of solution processed perovskites and phosphor nanocrystals. The review starts with an introduction to colloidal nanocrystal photonics emphasizing the importance of colloidal materials for light-emitting devices. Subsequently,we continue with the summary of important reports on light-emitting diodes, in which colloids are used as the color converters and then as the emissive layers in electroluminescent devices. Also,we review the developments in color enrichment and electroluminescent displays. Next, we present a summary of important reports on the lasing of colloidal semiconductors. Finally, we summarize and conclude the review presenting a future outlook.
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Affiliation(s)
- Talha Erdem
- 1Department of Electrical and Electronics Engineering, Department of Physics, Institute of Materials Science and Nanotechnology, and UNAM-National Nanotechnology Research Center, Bilkent, Ankara Turkey 06800
| | - Hilmi Volkan Demir
- 2Department of Electrical and Electronics Engineering, Department of Physics, Institute of Materials Science and Nanotechnology, and UNAM-National Nanotechnology Research Center, Bilkent, Ankara Turkey 06800 and Luminous! Center of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering, School of Physical and Mathematical Sciences, School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798
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49
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Ilaiyaraja P, Mocherla PSV, Srinivasan TK, Sudakar C. Synthesis of Cu-Deficient and Zn-Graded Cu-In-Zn-S Quantum Dots and Hybrid Inorganic-Organic Nanophosphor Composite for White Light Emission. ACS APPLIED MATERIALS & INTERFACES 2016; 8:12456-12465. [PMID: 27135154 DOI: 10.1021/acsami.6b02175] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Cu-deficient graded-zinc Cu-In-Zn-S (CIZS) quantum dots (QDs) were synthesized by a two-step solvothermal method. These CIZS QDs exhibited size and composition tunable photoluminescence characteristics with emission color tunable from greenish-yellow to orange to red with a relatively high quantum yield between 45 and 60%. Novel white-light-emitting (WLE) hybrid composite is fabricated by integrating the blue-emissive 1,4-bis-2-(5-phenyl oxazolyl)-benzene (POPOP) organic fluorophore and quaternary CIZS inorganic QDs. Integrating CIZS QDs with POPOP fluorophore resulted in series of tunable emission colors with CIE coordinates lying in a straight line between the coordinates of the end member. WLE was shown for hybrid mixture comprising 0.5 nM of POPOP and 3 mg/mL of CIZS QDs with color coordinates (0.3312, 0.3324). Thin films of this hybrid mixture in PMMA matrix coated on UV-LED or on glass substrates with UV backlit light also showed broadband WLE with ideal CIE color coordinates of (0.34, 0.33), high color-rendering index value of 92, and correlated color temperature value of 5143 K. The hybrid composite exhibit Forster resonance energy transfer cascading from POPOP to CIZS which results in emission covering the entire visible spectral range. POPOP and CIZS QDs hybrid composite is a versatile material for WLED applications.
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Affiliation(s)
- P Ilaiyaraja
- Multifunctional Materials Laboratory, Department of Physics, Indian Institute of Technology Madras , Chennai-600036, India
| | - Pavana S V Mocherla
- Multifunctional Materials Laboratory, Department of Physics, Indian Institute of Technology Madras , Chennai-600036, India
| | - T K Srinivasan
- Electronic Instrumentation and Radiological Safety Group, Indira Gandhi Centre for Atomic Research , Kalpakkam-603106, India
| | - C Sudakar
- Multifunctional Materials Laboratory, Department of Physics, Indian Institute of Technology Madras , Chennai-600036, India
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50
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Xuan TT, Liu JQ, Yu CY, Xie RJ, Li HL. Facile Synthesis of Cadmium-Free Zn-In-S:Ag/ZnS Nanocrystals for Bio-Imaging. Sci Rep 2016; 6:24459. [PMID: 27074820 PMCID: PMC4830992 DOI: 10.1038/srep24459] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 03/29/2016] [Indexed: 12/23/2022] Open
Abstract
High quality cadmium-free Zn-In-S:Ag doped-nanocrystals (d-NCs) were synthesized via a simple one-step noninjection route using silver nitrate, indium acetate, zinc acetate, oleylamine, S powder and 1-dodecanethiol as starting materials in an organic phase. The size and optical properties can be effectively tailored by controlling the reaction time, reaction temperature, Ag(+) dopant concentration, and the molar ratio of In to Zn. The photoluminescence wavelength of as-prepared Zn-In-S:Ag NCs covered a broad visible range from 458 nm to 603 nm. After being passivated by protective ZnS shell, the photoluminescence quantum yield (PLQY) of Zn-In-S:Ag(+) /ZnS was greatly improved to 43.5%. More importantly, the initial high PLQY of the obtained core/shell d-NCs in organic media can be preserved when being transferred into the aqueous media via ligand exchange. Finally, high quality Zn-In-S:Ag(+) /ZnS d-NCs in aqueous phase were applied as bio-imaging agents for identifying living KB cells.
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Affiliation(s)
- Tong-Tong Xuan
- Engineering Research Center for Nanophotonics & Advanced Instrument, Ministry of Education, School of Physics and Materials Science, East China Normal University, Shanghai, 200062, China
| | - Jia-Qing Liu
- Engineering Research Center for Nanophotonics & Advanced Instrument, Ministry of Education, School of Physics and Materials Science, East China Normal University, Shanghai, 200062, China
| | - Cai-Yan Yu
- Engineering Research Center for Nanophotonics & Advanced Instrument, Ministry of Education, School of Physics and Materials Science, East China Normal University, Shanghai, 200062, China
| | - Rong-Jun Xie
- Sialon Group, National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
| | - Hui-Li Li
- Engineering Research Center for Nanophotonics & Advanced Instrument, Ministry of Education, School of Physics and Materials Science, East China Normal University, Shanghai, 200062, China
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