51
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Hughes KE, Ostheller SR, Nelson HD, Gamelin DR. Copper's Role in the Photoluminescence of Ag 1- xCu xInS 2 Nanocrystals, from Copper-Doped AgInS 2 ( x ∼ 0) to CuInS 2 ( x = 1). NANO LETTERS 2019; 19:1318-1325. [PMID: 30584807 DOI: 10.1021/acs.nanolett.8b04905] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
A series of Ag1- xCu xInS2 nanocrystals (NCs) spanning from 0 ≤ x ≤ ∼1 was synthesized by partial cation exchange to identify copper's contributions to the electronic structure and spectroscopic properties of these NCs. Discrete midgap states appear above the valence band upon doping AgInS2 NCs with Cu+ (small x). Density functional theory calculations confirm that these midgap states are associated with the 3d valence orbitals of the Cu+ impurities. With increasing x, these impurity d levels gradually evolve to become the valence-band edge of CuInS2 NCs, but the highest-occupied orbital's description does not change significantly across the entire range of x. In contrast with this gradual evolution, Ag1- xCu xInS2 NC photoluminescence shifts rapidly with initial additions of Cu+ (small x) but then becomes independent of x beyond x > ∼0.20, all the way to CuInS2 ( x = 1.00). Data analysis suggests small but detectable hole delocalization in the luminescent excited state of CuInS2 NCs, estimated by Monte Carlo simulations to involve at most about four copper ions. These results provide unique insights into the luminescent excited states of these materials and they reinforce the description of CuInS2 NCs as "heavily copper-doped NCs" in which photogenerated holes are rapidly localized in copper 3d-based orbitals.
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Affiliation(s)
- Kira E Hughes
- Department of Chemistry , University of Washington , Seattle , Washington 98195-1700 , United States
| | - Sarah R Ostheller
- Department of Chemistry , University of Washington , Seattle , Washington 98195-1700 , United States
| | - Heidi D Nelson
- Department of Chemistry , University of Washington , Seattle , Washington 98195-1700 , United States
| | - Daniel R Gamelin
- Department of Chemistry , University of Washington , Seattle , Washington 98195-1700 , United States
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52
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Jiao M, Huang X, Ma L, Li Y, Zhang P, Wei X, Jing L, Luo X, Rogach AL, Gao M. Biocompatible off-stoichiometric copper indium sulfide quantum dots with tunable near-infrared emission via aqueous based synthesis. Chem Commun (Camb) 2019; 55:15053-15056. [DOI: 10.1039/c9cc07674c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Off-stoichiometry effects on the near-infrared emission of the aqueous based biocompatible copper indium sulfide quantum dots are revealed.
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Affiliation(s)
- Mingxia Jiao
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science
- MOE
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Xiaodan Huang
- Key Laboratory of Colloid, Interface and Chemical Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Linzheng Ma
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science
- MOE
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Yun Li
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science
- MOE
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Peisen Zhang
- Key Laboratory of Colloid, Interface and Chemical Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Xiaojun Wei
- Key Laboratory of Colloid, Interface and Chemical Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Lihong Jing
- Key Laboratory of Colloid, Interface and Chemical Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Xiliang Luo
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science
- MOE
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Andrey L. Rogach
- Department of Materials Science and Engineering, and Centre for Functional Photonics (CFP)
- City University of Hong Kong
- Kowloon
- Hong Kong SAR
| | - Mingyuan Gao
- Key Laboratory of Colloid, Interface and Chemical Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
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53
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Perner V, Rath T, Pirolt F, Glatter O, Wewerka K, Letofsky-Papst I, Zach P, Hobisch M, Kunert B, Trimmel G. Hot injection synthesis of CuInS2 nanocrystals using metal xanthates and their application in hybrid solar cells. NEW J CHEM 2019. [DOI: 10.1039/c8nj04823a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Copper indium sulfide nanocrystals with sizes of 3–4 nm were synthesized from metal xanthates in a hot injection reaction. After ligand exchange, their performance as acceptors in polymer/nanocrystal hybrid solar cells was evaluated.
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Affiliation(s)
- Verena Perner
- Institute for Chemistry and Technology of Materials (ICTM), NAWI Graz, Graz University of Technology
- 8010 Graz
- Austria
| | - Thomas Rath
- Institute for Chemistry and Technology of Materials (ICTM), NAWI Graz, Graz University of Technology
- 8010 Graz
- Austria
| | - Franz Pirolt
- Institute for Chemistry and Technology of Materials (ICTM), NAWI Graz, Graz University of Technology
- 8010 Graz
- Austria
| | - Otto Glatter
- Institute for Chemistry and Technology of Materials (ICTM), NAWI Graz, Graz University of Technology
- 8010 Graz
- Austria
| | - Karin Wewerka
- Institute for Electron Microscopy and Nanoanalysis and Center for Electron Microscopy, Graz University of Technology, NAWI Graz
- 8010 Graz
- Austria
| | - Ilse Letofsky-Papst
- Institute for Electron Microscopy and Nanoanalysis and Center for Electron Microscopy, Graz University of Technology, NAWI Graz
- 8010 Graz
- Austria
| | - Peter Zach
- Institute of Analytical Chemistry and Food Chemistry, NAWI Graz, Graz University of Technology
- 8010 Graz
- Austria
| | - Mathias Hobisch
- Institute of Paper, Pulp and Fibre Technology, Graz University of Technology
- 8010 Graz
- Austria
| | - Birgit Kunert
- Institute of Solid State Physics, Graz University of Technology
- 8010 Graz
- Austria
| | - Gregor Trimmel
- Institute for Chemistry and Technology of Materials (ICTM), NAWI Graz, Graz University of Technology
- 8010 Graz
- Austria
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54
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Mann PB, Afzal K, Long NJ, Thanou M, Green M. A glassware-free combinatorial synthesis of green quantum dots using bubble wrap. RSC Adv 2019; 9:16851-16855. [PMID: 35516378 PMCID: PMC9064422 DOI: 10.1039/c9ra02018g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 05/15/2019] [Indexed: 11/29/2022] Open
Abstract
Here, we describe the use of commercially-available bubble wrap as the basis for the simple, cheap combinatorial exploration of the synthesis of brightly emitting core/shell quantum dots. In this communication, we highlight the use of bubble wrap in the simple parallel synthesis of CuInS2-based quantum dots with different optical properties, based on varying precursors concentrations.![]()
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Affiliation(s)
| | - K. Afzal
- Department of Physics
- King's College London
- London WC2R 2LS
- UK
| | - N. J. Long
- Department of Chemistry
- Imperial College London
- Molecular Sciences Research Hub
- London W12 0BZ
- UK
| | - M. Thanou
- Cancer and Pharmaceutical Sciences
- King's College London
- London SE1 9NH
- UK
| | - M. Green
- Department of Physics
- King's College London
- London WC2R 2LS
- UK
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55
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Chetty SS, Praneetha S, Vadivel Murugan A, Govarthanan K, Verma RS. Microwave‐Assisted Synthesis of Quasi‐Pyramidal CuInS
2
–ZnS Nanocrystals for Enhanced Near‐Infrared Targeted Fluorescent Imaging of Subcutaneous Melanoma. ACTA ACUST UNITED AC 2018; 3:e1800127. [DOI: 10.1002/adbi.201800127] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 09/24/2018] [Indexed: 01/22/2023]
Affiliation(s)
- S. Shashank Chetty
- Advanced Functional Nanostructured Materials LaboratoryCentre for Nanoscience and TechnologyMadanjeet School of Green Energy TechnologiesPondicherry University (A Central University) Puducherry 605014 India
| | - S. Praneetha
- Advanced Functional Nanostructured Materials LaboratoryCentre for Nanoscience and TechnologyMadanjeet School of Green Energy TechnologiesPondicherry University (A Central University) Puducherry 605014 India
| | - A. Vadivel Murugan
- Advanced Functional Nanostructured Materials LaboratoryCentre for Nanoscience and TechnologyMadanjeet School of Green Energy TechnologiesPondicherry University (A Central University) Puducherry 605014 India
| | - Kavitha Govarthanan
- Stem Cell and Molecular Biology LaboratoryBhupat and Jyoti Mehta School of BiosciencesDepartment of BiotechnologyIndian Institute of Technology‐Madras (IIT‐M) Chennai 600036 India
| | - Rama S. Verma
- Stem Cell and Molecular Biology LaboratoryBhupat and Jyoti Mehta School of BiosciencesDepartment of BiotechnologyIndian Institute of Technology‐Madras (IIT‐M) Chennai 600036 India
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56
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Nagamine G, Nunciaroni HB, McDaniel H, Efros AL, de Brito Cruz CH, Padilha LA. Evidence of Band-Edge Hole Levels Inversion in Spherical CuInS 2 Quantum Dots. NANO LETTERS 2018; 18:6353-6359. [PMID: 30193071 DOI: 10.1021/acs.nanolett.8b02707] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
CuInS2 (CIS) quantum dots (QDs) have emerged as one of the most promising candidates for application in a number of new technologies, mostly due to their heavy-metal-free composition and their unique optical properties. Among those, the large Stokes shift and the long-lived excited state are the most striking ones. Although these properties are important, the physical mechanism that originates them is still under debate. Here, we use two-photon absorption spectroscopy and ultrafast dynamics studies to investigate the physical origin of those phenomena. From the two-photon absorption spectroscopy, we observe yet another unique property of CIS QDs, a two-photon absorption transition below the one-photon absorption band edge, which has never been observed before for any other semiconductor nanostructure. This originates from the inversion of the 1S and 1P hole level order at the top of the valence band and results in a blue-shift of the experimentally measured one photon absorption edge by nearly 100 to 200 meV. However, this shift is not large enough to account for the Stokes shift observed, 200-500 meV. Consequently, despite the existence of the below band gap optical transition, photoluminescence in CIS QDs must originate from trap sites. These conclusions are reinforced by the multiexciton dynamics studies. From those, we demonstrate that biexciton Auger recombination behaves similarly to negative trion dynamics on these nanomaterials, which suggests that the trap state is an electron donating site.
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Affiliation(s)
- Gabriel Nagamine
- Instituto de Fisica "GlebWataghin" , Universidade Estadual de Campinas, UNICAMP , P.O. Box 6165 , 13083-859 Campinas, Sao Paulo , Brazil
| | - Henrique B Nunciaroni
- Instituto de Fisica "GlebWataghin" , Universidade Estadual de Campinas, UNICAMP , P.O. Box 6165 , 13083-859 Campinas, Sao Paulo , Brazil
| | - Hunter McDaniel
- UbiQD, Inc. , 134 Eastgate Drive , Los Alamos , New Mexico 87544 , United States
| | - Alexander L Efros
- Center for Computational Materials Science , Naval Research Laboratory , Washington , D.C. 20375 , United States
| | - Carlos H de Brito Cruz
- Instituto de Fisica "GlebWataghin" , Universidade Estadual de Campinas, UNICAMP , P.O. Box 6165 , 13083-859 Campinas, Sao Paulo , Brazil
| | - Lazaro A Padilha
- Instituto de Fisica "GlebWataghin" , Universidade Estadual de Campinas, UNICAMP , P.O. Box 6165 , 13083-859 Campinas, Sao Paulo , Brazil
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57
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Xia C, Wu W, Yu T, Xie X, van Oversteeg C, Gerritsen HC, de Mello Donega C. Size-Dependent Band-Gap and Molar Absorption Coefficients of Colloidal CuInS 2 Quantum Dots. ACS NANO 2018; 12:8350-8361. [PMID: 30085648 PMCID: PMC6117745 DOI: 10.1021/acsnano.8b03641] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The knowledge of the quantum dot (QD) concentration in a colloidal suspension and the quantitative understanding of the size-dependence of the band gap of QDs are of crucial importance from both applied and fundamental viewpoints. In this work, we investigate the size-dependence of the optical properties of nearly spherical wurtzite (wz) CuInS2 (CIS) QDs in the 2.7 to 6.1 nm diameter range (polydispersity ≤10%). The QDs are synthesized by partial Cu+ for In3+ cation exchange in template Cu2- xS nanocrystals, which yields CIS QDs with very small composition variations (In/Cu = 0.91 ± 0.11), regardless of their sizes. These well-defined QDs are used to investigate the size-dependence of the band gap of wz CIS QDs. A sizing curve is also constructed for chalcopyrite CIS QDs by collecting and reanalyzing literature data. We observe that both sizing curves follow primarily a 1/ d dependence. Moreover, the molar absorption coefficients and the absorption cross-section per CIS formula unit, both at 3.1 eV and at the band gap, are analyzed. The results demonstrate that the molar absorption coefficients of CIS QDs follow a power law at the first exciton transition energy (ε E1 = 5208 d2.45) and scale with the QD volume at 3.1 eV. This latter observation implies that the absorption cross-section per unit cell at 3.1 eV is size-independent and therefore can be estimated from bulk optical constants. These results also demonstrate that the molar absorption coefficients at 3.1 eV are more reliable for analytical purposes, since they are less sensitive to size and shape dispersion.
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Affiliation(s)
- Chenghui Xia
- Condensed
Matter and Interfaces, Debye Institute for
Nanomaterials Science, Utrecht University, 3508 TA Utrecht, The Netherlands
- Molecular
Biophysics, Debye Institute for Nanomaterials
Science, Utrecht University, 3508 TA Utrecht, The Netherlands
| | - Weiwei Wu
- Condensed
Matter and Interfaces, Debye Institute for
Nanomaterials Science, Utrecht University, 3508 TA Utrecht, The Netherlands
| | - Ting Yu
- Condensed
Matter and Interfaces, Debye Institute for
Nanomaterials Science, Utrecht University, 3508 TA Utrecht, The Netherlands
| | - Xiaobin Xie
- Soft
Condensed Matter, Debye Institute for Nanomaterials
Science, Utrecht University, 3508 TA Utrecht, The Netherlands
| | - Christina van Oversteeg
- Condensed
Matter and Interfaces, Debye Institute for
Nanomaterials Science, Utrecht University, 3508 TA Utrecht, The Netherlands
| | - Hans C. Gerritsen
- Molecular
Biophysics, Debye Institute for Nanomaterials
Science, Utrecht University, 3508 TA Utrecht, The Netherlands
| | - Celso de Mello Donega
- Condensed
Matter and Interfaces, Debye Institute for
Nanomaterials Science, Utrecht University, 3508 TA Utrecht, The Netherlands
- E-mail:
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58
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Moroz P, Boddy A, Zamkov M. Challenges and Prospects of Photocatalytic Applications Utilizing Semiconductor Nanocrystals. Front Chem 2018; 6:353. [PMID: 30159309 PMCID: PMC6103974 DOI: 10.3389/fchem.2018.00353] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 07/25/2018] [Indexed: 12/25/2022] Open
Abstract
Photocatalytic systems based on colloidal semiconductor nanocrystals have gained considerable attention owing to potential benefits that include a visible-range light extinction and a low spatial overlap of photoinduced charges. When coupled to metal catalysts, nanocrystal sensitizers have demonstrated a compelling performance in homogenous photoreduction reactions, including the degradation of organic dyes and hydrogen generation. Going beyond half-cycle reactions, however, the progress in the field of nanocrystal photocatalysis has been rather limited. Here, we review some of the challenges associated with photocatalytic applications of colloidal semiconductor nanocrystals and highlight possible directions aimed toward their resolution. A particular emphasis was made on new paradigms in this field, including the possibility of harvesting triplet excitons and utilizing nanocrystal assemblies to accumulate multiple charges at the reaction site.
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Affiliation(s)
- Pavel Moroz
- The Center for Photochemical Sciences, Bowling Green State University Bowling Green, OH, United States.,Department of Physics and Astronomy, Bowling Green State University, Bowling Green, OH, United States
| | - Anthony Boddy
- Department of Biological Sciences, Bowling Green State University, Bowling Green, OH, United States
| | - Mikhail Zamkov
- The Center for Photochemical Sciences, Bowling Green State University Bowling Green, OH, United States.,Department of Physics and Astronomy, Bowling Green State University, Bowling Green, OH, United States
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59
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ZnS/SiO2 Passivation Layer for High-Performance of TiO2/CuInS2 Quantum Dot Sensitized Solar Cells. ENERGIES 2018. [DOI: 10.3390/en11081931] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Suppressing the charge recombination at the interface of photoanode/electrolyte is the crucial way to improve the quantum dot sensitized solar cells (QDSSCs) performance. In this scenario, ZnS/SiO2 blocking layer was deposited on TiO2/CuInS2 QDs to inhibit the charge recombination at photoanode/electrolyte interface. As a result, the TiO2/CuInS2/ZnS/SiO2 based QDSSCs delivers a power conversion efficiency (η) value of 4.63%, which is much higher than the TiO2/CuInS2 (2.15%) and TiO2/CuInS2/ZnS (3.23%) based QDSSCs. Impedance spectroscopy and open circuit voltage decay analyses indicate that ZnS/SiO2 passivation layer on TiO2/CuInS2 suppress the charge recombination at the interface of photoanode/electrolyte and enhance the electron lifetime.
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60
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Stroyuk O, Raevskaya A, Gaponik N. Solar light harvesting with multinary metal chalcogenide nanocrystals. Chem Soc Rev 2018; 47:5354-5422. [PMID: 29799031 DOI: 10.1039/c8cs00029h] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The paper reviews the state of the art in the synthesis of multinary (ternary, quaternary and more complex) metal chalcogenide nanocrystals (NCs) and their applications as a light absorbing or an auxiliary component of light-harvesting systems. This includes solid-state and liquid-junction solar cells and photocatalytic/photoelectrochemical systems designed for the conversion of solar light into the electric current or the accumulation of solar energy in the form of products of various chemical reactions. The review discusses general aspects of the light absorption and photophysical properties of multinary metal chalcogenide NCs, the modern state of the synthetic strategies applied to produce the multinary metal chalcogenide NCs and related nanoheterostructures, and recent achievements in the metal chalcogenide NC-based solar cells and the photocatalytic/photoelectrochemical systems. The review is concluded by an outlook with a critical discussion of the most promising ways and challenging aspects of further progress in the metal chalcogenide NC-based solar photovoltaics and photochemistry.
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Affiliation(s)
- Oleksandr Stroyuk
- L.V. Pysarzhevsky Institute of Physical Chemistry, National Academy of Sciences of Ukraine, 03028 Kyiv, Ukraine.
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61
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Senevirathna DC, Spiccia L, Werrett MV, Andrews PC. Transformation of Indium and Gallium Metal into Mixed Group 11/13 Ternary Sulfide Nanoparticles by Using a Dithioic Acid. Chempluschem 2018; 83:565-568. [PMID: 31950636 DOI: 10.1002/cplu.201800165] [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: 04/02/2018] [Revised: 04/27/2018] [Indexed: 11/07/2022]
Abstract
Heterobimetallic Group 11/13 sulfide nanoparticles (AgInS2 , CuInS2 , Ag9 GaS6 , and CuGaS2 ) are formed by treatment of [M(S2 CAr)3 ] (M=Ga or In) with either AgNO3 or CuCl under mild conditions. The intermediary gallium or indium tris(aryldithioate) complexes are easily prepared by stirring the appropriate metal and aryldithioc acid at room temperature. Overall, this two-step process is a simple solution-based method for transforming Ga and In metal into valuable ternary metallosulfide nanoparticles at relatively low temperatures.
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Affiliation(s)
| | - Leone Spiccia
- School of Chemistry, Monash University, Melbourne, VIC, 3800, Australia
| | - Melissa V Werrett
- School of Chemistry, Monash University, Melbourne, VIC, 3800, Australia
| | - Philip C Andrews
- School of Chemistry, Monash University, Melbourne, VIC, 3800, Australia
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62
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Asano H, Tsukuda S, Kita M, Fujimoto S, Omata T. Colloidal Zn(Te,Se)/ZnS Core/Shell Quantum Dots Exhibiting Narrow-Band and Green Photoluminescence. ACS OMEGA 2018; 3:6703-6709. [PMID: 31458844 PMCID: PMC6644462 DOI: 10.1021/acsomega.8b00612] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 06/07/2018] [Indexed: 05/15/2023]
Abstract
Colloidal CdSe quantum dot (QD) phosphors have attracted considerable attention as green and red phosphors for blue backlight downconversion in next-generation liquid-crystal displays because of their excellent emission features including tunable emission wavelength and narrow emission bands. Alternatives to CdSe, which do not contain toxic cadmium, are strongly desired to ensure safety and reduce the environmental load of consumer products. Herein, we synthesized colloidal Zn(Te,Se)/ZnS core/shell QDs and demonstrated narrow-band green photoluminescence (PL) emission. A full width at half-maximum of 30 nm was achieved for PL emission at 535 nm from Zn(Te0.77Se0.23)/ZnS core/shell QDs with a core QD diameter of 4.3 nm. This emission characteristic was as good as that of CdSe QDs.
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Affiliation(s)
- Hiroshi Asano
- Division
of Material and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Satoshi Tsukuda
- Institute
of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, 2-1-1 Katahira Aoba-ku, Sendai 980-8577, Japan
| | - Masao Kita
- Department
of Mechanical Engineering, National College
of Technology, Toyama College, 13 Hongo-machi, Toyama 939-8630, Japan
| | - Shinji Fujimoto
- Division
of Material and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Takahisa Omata
- Division
of Material and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Institute
of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, 2-1-1 Katahira Aoba-ku, Sendai 980-8577, Japan
- E-mail: (T.O.)
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63
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Yu K, Yang Y, Wang J, Tang X, Xu QH, Wang GP. Ultrafast carrier dynamics and third-order nonlinear optical properties of AgInS 2/ZnS nanocrystals. NANOTECHNOLOGY 2018; 29:255703. [PMID: 29595519 DOI: 10.1088/1361-6528/aabab7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Broad photoluminescence (PL) emission, a large Stokes shift and extremely long-lived radiative lifetimes are the characteristics of ternary I-III-VI semiconductor nanocrystals (NCs), such as CuInS2 and AgInS2. However, the lack of understanding regarding the intriguing PL mechanisms and photo-carrier dynamics limits their further applications. Here, AgInS2 and AgInS2/ZnS NCs were chemically synthesized and their carrier dynamics were studied by time-resolved PL spectroscopy. The results demonstrated that the surface defect state, which contributed dominantly to the non-radiative decay processes, was effectively passivated through ZnS alloying. Femtosecond transient absorption spectroscopy was also used to investigate the carrier dynamics, revealing the electron storage at the surface state and donor state. Furthermore, the two photon absorption properties of AgInS2 and AgInS2/ZnS NCs were measured using an open-aperture Z-scan technique. The improved third-order nonlinear susceptibility [Formula: see text] of AgInS2 through ZnS alloying demonstrates potential application in two photon PL biological imaging.
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Affiliation(s)
- Kuai Yu
- College of Electronic Science and Technology, Shenzhen University, Shenzhen 518060, People's Republic of China
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64
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Chen J, Li Y, Wang L, Zhou T, Xie RJ. Achieving deep-red-to-near-infrared emissions in Sn-doped Cu-In-S/ZnS quantum dots for red-enhanced white LEDs and near-infrared LEDs. NANOSCALE 2018; 10:9788-9795. [PMID: 29767202 DOI: 10.1039/c8nr01981a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Semiconductor quantum dots (QDs) are promising luminescent materials for use in lighting, display and bio-imaging, and the color tuning is a necessity for such applications. In this work, we report tunable colors and deep-red or near infrared (NIR) emissions in Cu-In-S and Cu-In-S/ZnS QDs by incorporating Sn. These QDs (with a size of 5 nm) with varying Sn concentrations and/or Cu/In ratios were synthesized by a non-injection method, and characterized by a variety of analytical techniques (i.e., XRD, TEM, XPS, absorption, photoluminescence, decay time, etc.). The Cu-Sn-In-S and Cu-Sn-In-S/ZnS QDs with Cu/In = 1/2 show the emission maximum in the ranges of 701-894 nm and 628-785 nm, respectively. The red-shift in emission is ascribed to the decrease of the band gap with the Sn doping. The highest quantum yield of 75% is achieved in Cu-Sn-In-S/ZnS with 0.1 mmol Sn and Cu/In = 1/2. Both the white and NIR LEDs were fabricated by using Cu-Sn-In-S/ZnS QDs and a 365 nm LED chip. The white LED exhibits superhigh color rendering indices of Ra = 97.2 and R9 = 91 and a warm color temperature of 2700 K. And the NIR LED shows an interesting broadband near-infrared emission centered at 741 nm, allowing for applications in optical communication, sensing and medical devices.
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Affiliation(s)
- Jixin Chen
- College of Materials, Xiamen University, Simingnan-Road 422, Xiamen 361005, P. R. China.
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65
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Bera S, Dutta A, Mutyala S, Ghosh D, Pradhan N. Predominated Thermodynamically Controlled Reactions for Suppressing Cross Nucleations in Formation of Multinary Substituted Tetrahedrite Nanocrystals. J Phys Chem Lett 2018; 9:1907-1912. [PMID: 29584942 DOI: 10.1021/acs.jpclett.8b00680] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Group I-II-V-VI semiconducting Cu12- xM xSb4S13 (M = ZnII, CdII, MnII and CuII) substituted tetrahedrite nanostructures remain a new class of multinary materials that have not been widely explored yet. Having different ions, the formation process of these nanostructures always has the possibility of formation of cross nucleations. Minimizing the reaction time, herein, a predominantly thermodynamic control approach is reported, which decouples the quaternary nucleations from their possible cross nucleations. As a consequence, possible cross nucleations were prevented and a series of nearly monodisperse intriguing substituted tetrahedrite nanostructures were formed. The possible LaMer plot for the single- and multimaterial nucleations is also proposed. Further, bandgaps of all of these new materials are calculated, and preliminarily, the applicability of these materials is tested for photoelectrochemical water splitting.
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Affiliation(s)
- Suman Bera
- Department of Materials Science , Indian Association for the Cultivation of Science , Kolkata 700032 , India
| | - Anirban Dutta
- Department of Materials Science , Indian Association for the Cultivation of Science , Kolkata 700032 , India
| | - Sankararao Mutyala
- Department of Materials Science , Indian Association for the Cultivation of Science , Kolkata 700032 , India
| | - Dibyendu Ghosh
- Department of Chemistry , Indian Institute of Science Education and Research , Kolkata 700064 , India
| | - Narayan Pradhan
- Department of Materials Science , Indian Association for the Cultivation of Science , Kolkata 700032 , India
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66
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Berends AC, van der Stam W, Hofmann JP, Bladt E, Meeldijk JD, Bals S, de Mello Donega C. Interplay between Surface Chemistry, Precursor Reactivity, and Temperature Determines Outcome of ZnS Shelling Reactions on CuInS 2 Nanocrystals. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2018; 30:2400-2413. [PMID: 29657360 PMCID: PMC5895981 DOI: 10.1021/acs.chemmater.8b00477] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 03/23/2018] [Indexed: 05/05/2023]
Abstract
ZnS shelling of I-III-VI2 nanocrystals (NCs) invariably leads to blue-shifts in both the absorption and photoluminescence spectra. These observations imply that the outcome of ZnS shelling reactions on I-III-VI2 colloidal NCs results from a complex interplay between several processes taking place in solution, at the surface of, and within the seed NC. However, a fundamental understanding of the factors determining the balance between these different processes is still lacking. In this work, we address this need by investigating the impact of precursor reactivity, reaction temperature, and surface chemistry (due to the washing procedure) on the outcome of ZnS shelling reactions on CuInS2 NCs using a seeded growth approach. We demonstrate that low reaction temperatures (150 °C) favor etching, cation exchange, and alloying regardless of the precursors used. Heteroepitaxial shell overgrowth becomes the dominant process only if reactive S- and Zn-precursors (S-ODE/OLAM and ZnI2) and high reaction temperatures (210 °C) are used, although a certain degree of heterointerfacial alloying still occurs. Remarkably, the presence of residual acetate at the surface of CIS seed NCs washed with ethanol is shown to facilitate heteroepitaxial shell overgrowth, yielding for the first time CIS/ZnS core/shell NCs displaying red-shifted absorption spectra, in agreement with the spectral shifts expected for a type-I band alignment. The insights provided by this work pave the way toward the design of improved synthesis strategies to CIS/ZnS core/shell and alloy NCs with tailored elemental distribution profiles, allowing precise tuning of the optoelectronic properties of the resulting materials.
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Affiliation(s)
- Anne C. Berends
- Condensed
Matter and Interfaces, Debye Institute for
Nanomaterials Science, Utrecht University, Post Office Box 80000, 3508 TA Utrecht, The Netherlands
| | - Ward van der Stam
- Condensed
Matter and Interfaces, Debye Institute for
Nanomaterials Science, Utrecht University, Post Office Box 80000, 3508 TA Utrecht, The Netherlands
| | - Jan P. Hofmann
- Laboratory
of Inorganic Materials Chemistry, Department of Chemical Engineering
and Chemistry, Eindhoven University of Technology, Postbox 513, 5600 MB Eindhoven, The Netherlands
| | - Eva Bladt
- EMAT,
Department of Physics, University of Antwerpen, Groenenborgerlaan 171, 2010 Antwerpen, Belgium
| | - Johannes D. Meeldijk
- Electron
Microscopy Utrecht, Debye Institute for
Nanomaterials Science, Utrecht University, 3584 CH Utrecht, Netherlands
| | - Sara Bals
- EMAT,
Department of Physics, University of Antwerpen, Groenenborgerlaan 171, 2010 Antwerpen, Belgium
| | - Celso de Mello Donega
- Condensed
Matter and Interfaces, Debye Institute for
Nanomaterials Science, Utrecht University, Post Office Box 80000, 3508 TA Utrecht, The Netherlands
- E-mail:
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67
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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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68
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Wang L, Sun YX, Zhang F, Li Y. Synthesis of CuInS2 quantum dots for synchronous fluorescent assay of glutathione in foods and biological fluids. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2017.12.047] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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69
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Kodaimati MS, McClelland KP, He C, Lian S, Jiang Y, Zhang Z, Weiss EA. Viewpoint: Challenges in Colloidal Photocatalysis and Some Strategies for Addressing Them. Inorg Chem 2018; 57:3659-3670. [DOI: 10.1021/acs.inorgchem.7b03182] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mohamad S. Kodaimati
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Kevin P. McClelland
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Chen He
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Shichen Lian
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Yishu Jiang
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Zhengyi Zhang
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Emily A. Weiss
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
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70
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Hu K, Wang D, Zhao W, Gu Y, Bu K, Pan J, Qin P, Zhang X, Huang F. Intermediate Band Material of Titanium-Doped Tin Disulfide for Wide Spectrum Solar Absorption. Inorg Chem 2018; 57:3956-3962. [DOI: 10.1021/acs.inorgchem.8b00143] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Keyan Hu
- CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China
- School of Mechanical and Electrical Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333403, PR China
| | - Dong Wang
- CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China
| | - Wei Zhao
- CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China
| | - Yuhao Gu
- Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China
| | - Kejun Bu
- CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China
| | - Jie Pan
- CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China
| | - Peng Qin
- CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China
| | - Xian Zhang
- CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China
- Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China
| | - Fuqiang Huang
- CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China
- Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China
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71
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Agrawal A, Cho SH, Zandi O, Ghosh S, Johns RW, Milliron DJ. Localized Surface Plasmon Resonance in Semiconductor Nanocrystals. Chem Rev 2018; 118:3121-3207. [PMID: 29400955 DOI: 10.1021/acs.chemrev.7b00613] [Citation(s) in RCA: 280] [Impact Index Per Article: 46.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Localized surface plasmon resonance (LSPR) in semiconductor nanocrystals (NCs) that results in resonant absorption, scattering, and near field enhancement around the NC can be tuned across a wide optical spectral range from visible to far-infrared by synthetically varying doping level, and post synthetically via chemical oxidation and reduction, photochemical control, and electrochemical control. In this review, we will discuss the fundamental electromagnetic dynamics governing light matter interaction in plasmonic semiconductor NCs and the realization of various distinctive physical properties made possible by the advancement of colloidal synthesis routes to such NCs. Here, we will illustrate how free carrier dielectric properties are induced in various semiconductor materials including metal oxides, metal chalcogenides, metal nitrides, silicon, and other materials. We will highlight the applicability and limitations of the Drude model as applied to semiconductors considering the complex band structures and crystal structures that predominate and quantum effects that emerge at nonclassical sizes. We will also emphasize the impact of dopant hybridization with bands of the host lattice as well as the interplay of shape and crystal structure in determining the LSPR characteristics of semiconductor NCs. To illustrate the discussion regarding both physical and synthetic aspects of LSPR-active NCs, we will focus on metal oxides with substantial consideration also of copper chalcogenide NCs, with select examples drawn from the literature on other doped semiconductor materials. Furthermore, we will discuss the promise that LSPR in doped semiconductor NCs holds for a wide range of applications such as infrared spectroscopy, energy-saving technologies like smart windows and waste heat management, biomedical applications including therapy and imaging, and optical applications like two photon upconversion, enhanced luminesence, and infrared metasurfaces.
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Affiliation(s)
- Ankit Agrawal
- McKetta Department of Chemical Engineering , The University of Texas at Austin , Austin , Texas 78712 , United States
| | - Shin Hum Cho
- McKetta Department of Chemical Engineering , The University of Texas at Austin , Austin , Texas 78712 , United States
| | - Omid Zandi
- McKetta Department of Chemical Engineering , The University of Texas at Austin , Austin , Texas 78712 , United States
| | - Sandeep Ghosh
- McKetta Department of Chemical Engineering , The University of Texas at Austin , Austin , Texas 78712 , United States
| | - Robert W Johns
- McKetta Department of Chemical Engineering , The University of Texas at Austin , Austin , Texas 78712 , United States.,Department of Chemistry , University of California Berkeley , Berkeley , California 94720 , United States
| | - Delia J Milliron
- McKetta Department of Chemical Engineering , The University of Texas at Austin , Austin , Texas 78712 , United States
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72
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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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73
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Al-Shakban M, Matthews PD, Zhong XL, Vitorica-Yrezabal I, Raftery J, Lewis DJ, O'Brien P. On the phase control of CuInS2 nanoparticles from Cu-/In-xanthates. Dalton Trans 2018; 47:5304-5309. [DOI: 10.1039/c8dt00653a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
In this paper we report the synthesis characterisation of six In(iii) xanthate complexes that have been used for the synthesis of CuInS2 nanoparticles in conjunction with a Cu(i)-xanthate – we have also demonstrated an ability to control the phase of the material through choice of solvent.
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Affiliation(s)
| | - Peter D. Matthews
- Lennard-Jones Laboratories
- School of Chemical and Physical Sciences
- Keele University
- Keele
- UK
| | | | | | - James Raftery
- School of Chemistry
- University of Manchester
- Manchester
- UK
| | | | - Paul O'Brien
- School of Materials
- University of Manchester
- Manchester
- UK
- School of Chemistry
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74
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Paderick S, Kessler M, Hurlburt TJ, Hughes SM. Synthesis and characterization of AgGaS2 nanoparticles: a study of growth and fluorescence. Chem Commun (Camb) 2018; 54:62-65. [PMID: 29206251 DOI: 10.1039/c7cc08070k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Silver gallium sulfide nanocrystals demonstrate tunability for trap-state emission (650 nm) or band gap fluorescence (460 nm).
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75
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Yue L, Rao H, Du J, Pan Z, Yu J, Zhong X. Comparative advantages of Zn–Cu–In–S alloy QDs in the construction of quantum dot-sensitized solar cells. RSC Adv 2018; 8:3637-3645. [PMID: 35542942 PMCID: PMC9077672 DOI: 10.1039/c7ra12321c] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 01/06/2018] [Indexed: 11/23/2022] Open
Abstract
Alloyed structures of quantum dot light-harvesting materials favor the suppression of unwanted charge recombination as well as acceleration of the charge extraction and therefore the improvement of photovoltaic performance of the resulting solar cell devices. Herein, the advantages of Zn–Cu–In–S (ZCIS) alloy QD serving as light-harvesting sensitizer materials in the construction of quantum dot-sensitized solar cells (QDSCs) were compared with core/shell structured CIS/ZnS, as well as pristine CIS QDs. The built QDSCs with alloyed Zn–Cu–In–S QDs as photosensitizer achieved an average power conversion efficiency (PCE) of 8.47% (Voc = 0.613 V, Jsc = 22.62 mA cm−2, FF = 0.610) under AM 1.5G one sun irradiation, which was enhanced by 21%, and 82% in comparison to those of CIS/ZnS, and CIS based solar cells, respectively. In comparison to cell device assembled by the plain CIS and core/shell structured CIS/ZnS, the enhanced photovoltaic performance in ZCIS QDSCs is mainly ascribed to the faster photon generated electron injection rate from QD into TiO2 substrate, and the effective restraint of charge recombination, as confirmed by incident photon-to-current conversion efficiency (IPCE), open-circuit voltage decay (OCVD), as well as electrochemical impedance spectroscopy (EIS) measurements. Benefiting from the accelerative electron injection and retarded charge recombination, Zn–Cu–In–S alloy QD based QDSC achieved a PCE of 8.55%, which is 21%, and 82% higher than those of CIS/ZnS, and pristine CIS QDs based solar cells, respectively.![]()
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Affiliation(s)
- Liang Yue
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
- College of Materials and Energy
| | - Huashang Rao
- College of Materials and Energy
- South China Agricultural University
- Guangzhou 510642
- China
| | - Jun Du
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Zhenxiao Pan
- College of Materials and Energy
- South China Agricultural University
- Guangzhou 510642
- China
| | - Juan Yu
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Xinhua Zhong
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
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76
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Khan MD, Murtaza G, Revaprasadu N, O'Brien P. Synthesis of chalcopyrite-type and thiospinel minerals/materials by low temperature melts of xanthates. Dalton Trans 2018; 47:8870-8873. [DOI: 10.1039/c8dt00953h] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Xanthate complexes are used in the low temperature atom efficient synthesis of some geological and technologically important ternary compounds.
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Affiliation(s)
- Malik Dilshad Khan
- Department of Chemistry
- University of Zululand
- Kwa-Dlangezwa
- South Africa
- School of Chemistry
| | - Ghulam Murtaza
- School of Chemistry
- The University of Manchester
- Manchester
- UK
| | | | - Paul O'Brien
- School of Chemistry
- The University of Manchester
- Manchester
- UK
- School of Materials
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77
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Nanoparticles of Ag-In-S and Cu-In-S in Aqueous Media: Preparation, Spectral and Luminescent Properties. THEOR EXP CHEM+ 2017. [DOI: 10.1007/s11237-017-9533-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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78
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Facet-Specific Ligand Interactions on Ternary AgSbS2
Colloidal Quantum Dots. Chemistry 2017; 23:17707-17713. [DOI: 10.1002/chem.201703681] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Indexed: 11/07/2022]
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79
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Tsolekile N, Parani S, Matoetoe MC, Songca SP, Oluwafemi OS. Evolution of ternary I–III–VI QDs: Synthesis, characterization and application. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.nanoso.2017.08.012] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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80
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Peer A, Hu Z, Singh A, Hollingsworth JA, Biswas R, Htoon H. Photoluminescence Enhancement of CuInS 2 Quantum Dots in Solution Coupled to Plasmonic Gold Nanocup Array. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1700660. [PMID: 28677918 DOI: 10.1002/smll.201700660] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 05/09/2017] [Indexed: 06/07/2023]
Abstract
A strong plasmonic enhancement of photoluminescence (PL) decay rate in quantum dots (QDs) coupled to an array of gold-coated nanocups is demonstrated. CuInS2 QDs that emit at a wavelength that overlaps with the extraordinary optical transmission (EOT) of the gold nanocup array are placed in the cups as solutions. Time-resolved PL reveals that the decay rate of the QDs in the plasmonically coupled system can be enhanced by more than an order of magnitude. Using finite-difference time-domain (FDTD) simulations, it is shown that this enhancement in PL decay rate results from an enhancement factor of ≈100 in electric field intensity provided by the plasmonic mode of the nanocup array, which is also responsible for the EOT. The simulated Purcell factor approaches 86 at the bottom of the nanocup and is ≈3-15 averaged over the nanocup cavity height, agreeing with the experimental enhancement result. This demonstration of solution-based coupling between QDs and gold nanocups opens up new possibilities for applications that would benefit from a solution environment such as biosensing.
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Affiliation(s)
- Akshit Peer
- Ames Laboratory, Ames, IA, 50011, USA
- Department of Electrical and Computer Engineering, Iowa State University, Ames, IA, 50011, USA
| | - Zhongjian Hu
- Center for Integrated Nanotechnologies, Materials Physics and Applications Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Ajay Singh
- Center for Integrated Nanotechnologies, Materials Physics and Applications Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Jennifer A Hollingsworth
- Center for Integrated Nanotechnologies, Materials Physics and Applications Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Rana Biswas
- Ames Laboratory, Ames, IA, 50011, USA
- Department of Electrical and Computer Engineering, Iowa State University, Ames, IA, 50011, USA
- Department of Physics and Astronomy, Iowa State University, Ames, IA, 50011, USA
| | - Han Htoon
- Center for Integrated Nanotechnologies, Materials Physics and Applications Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
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81
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Ding Q, Zhang X, Li L, Lou X, Xu J, Zhou P, Yan M. Temperature dependent photoluminescence of composition tunable Zn xAgInSe quantum dots and temperature sensor application. OPTICS EXPRESS 2017; 25:19065-19076. [PMID: 29041096 DOI: 10.1364/oe.25.019065] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 07/10/2017] [Indexed: 06/07/2023]
Abstract
Quantum dots (QDs) exhibit not only wide tunability of luminescence but also complex optical properties because of the large degree of freedom in their structure and chemical composition. Quaternary ZnxAgInSe QDs with different Zn/Ag ratios were synthesized and examined as temperature sensors. The relationship among the luminescence energy, emission intensity, and full-width at half-maximum (FWHM) of the emission band at different temperatures was investigated. To understand the photoluminescence mechanism, time-resolved photoluminescence spectra were recorded. Moreover, the dependence of the luminescence peak energy and FWHM on temperature was investigated, and a small deviation from the actual temperature was observed, indicative of the use of ZnxAgInSe QDs as high sensitivity temperature sensors.
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82
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Spangler LC, Chu R, Lu L, Kiely CJ, Berger BW, McIntosh S. Enzymatic biomineralization of biocompatible CuInS 2, (CuInZn)S 2 and CuInS 2/ZnS core/shell nanocrystals for bioimaging. NANOSCALE 2017; 9:9340-9351. [PMID: 28661538 DOI: 10.1039/c7nr02852k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This work demonstrates a bioenabled fully aqueous phase and room temperature route to the synthesis of CuInS2/ZnS core/shell quantum confined nanocrystals conjugated to IgG antibodies and used for fluorescent tagging of THP-1 leukemia cells. This elegant, straightforward and green approach avoids the use of solvents, high temperatures and the necessity to phase transfer the nanocrystals prior to application. Non-toxic CuInS2, (CuInZn)S2, and CuInS2/ZnS core/shell quantum confined nanocrystals are synthesized via a biomineralization process based on a single recombinant cystathionine γ-lyase (CSE) enzyme. First, soluble In-S complexes are formed from indium acetate and H2S generated by CSE, which are then stabilized by l-cysteine in solution. The subsequent addition of copper, or both copper and zinc, precursors then results in the immediate formation of CuInS2 or (CuInZn)S2 quantum dots. Shell growth is realized through subsequent introduction of Zn acetate to the preformed core nanocrystals. The size and optical properties of the nanocrystals are tuned by adjusting the indium precursor concentration and initial incubation period. CuInS2/ZnS core/shell particles are conjugated to IgG antibodies using EDC/NHS cross-linkers and then applied in the bioimaging of THP-1 cells. Cytotoxicity tests confirm that CuInS2/ZnS core/shell quantum dots do not cause cell death during bioimaging. Thus, this biomineralization enabled approach provides a facile, low temperature route for the fully aqueous synthesis of non-toxic CuInS2/ZnS quantum dots, which are ideal for use in bioimaging applications.
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Affiliation(s)
- Leah C Spangler
- Department of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, PA 18015, USA.
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83
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Xia C, Meeldijk JD, Gerritsen HC, de Mello Donega C. Highly Luminescent Water-Dispersible NIR-Emitting Wurtzite CuInS 2/ZnS Core/Shell Colloidal Quantum Dots. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2017; 29:4940-4951. [PMID: 28638177 PMCID: PMC5473174 DOI: 10.1021/acs.chemmater.7b01258] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 05/16/2017] [Indexed: 05/19/2023]
Abstract
Copper indium sulfide (CIS) quantum dots (QDs) are attractive as labels for biomedical imaging, since they have large absorption coefficients across a broad spectral range, size- and composition-tunable photoluminescence from the visible to the near-infrared, and low toxicity. However, the application of NIR-emitting CIS QDs is still hindered by large size and shape dispersions and low photoluminescence quantum yields (PLQYs). In this work, we develop an efficient pathway to synthesize highly luminescent NIR-emitting wurtzite CIS/ZnS QDs, starting from template Cu2-x S nanocrystals (NCs), which are converted by topotactic partial Cu+ for In3+ exchange into CIS NCs. These NCs are subsequently used as cores for the overgrowth of ZnS shells (≤1 nm thick). The CIS/ZnS core/shell QDs exhibit PL tunability from the first to the second NIR window (750-1100 nm), with PLQYs ranging from 75% (at 820 nm) to 25% (at 1050 nm), and can be readily transferred to water upon exchange of the native ligands for mercaptoundecanoic acid. The resulting water-dispersible CIS/ZnS QDs possess good colloidal stability over at least 6 months and PLQYs ranging from 39% (at 820 nm) to 6% (at 1050 nm). These PLQYs are superior to those of commonly available water-soluble NIR-fluorophores (dyes and QDs), making the hydrophilic CIS/ZnS QDs developed in this work promising candidates for further application as NIR emitters in bioimaging. The hydrophobic CIS/ZnS QDs obtained immediately after the ZnS shelling are also attractive as fluorophores in luminescent solar concentrators.
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Affiliation(s)
- Chenghui Xia
- Condensed
Matter and Interfaces, Debye Institute for Nanomaterials Science, Utrecht University, P.O.
Box 80000, 3508 TA Utrecht, The Netherlands
- Molecular
Biophysics, Debye Institute for Nanomaterials Science, Utrecht University, 3508 TA Utrecht, Netherlands
| | - Johannes D. Meeldijk
- Electron
Microscopy Utrecht, Debye Institute for Nanomaterials Science, Utrecht University, 3584 CH Utrecht, Netherlands
| | - Hans C. Gerritsen
- Molecular
Biophysics, Debye Institute for Nanomaterials Science, Utrecht University, 3508 TA Utrecht, Netherlands
| | - Celso de Mello Donega
- Condensed
Matter and Interfaces, Debye Institute for Nanomaterials Science, Utrecht University, P.O.
Box 80000, 3508 TA Utrecht, The Netherlands
- E-mail:
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84
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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: 301] [Impact Index Per Article: 43.0] [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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85
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Wepfer S, Frohleiks J, Hong AR, Jang HS, Bacher G, Nannen E. Solution-Processed CuInS 2-Based White QD-LEDs with Mixed Active Layer Architecture. ACS APPLIED MATERIALS & INTERFACES 2017; 9:11224-11230. [PMID: 28271710 DOI: 10.1021/acsami.6b15660] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Colloidal quantum dots (QDs) are attractive candidates for future lighting technology. However, in contrast to display applications, the realization of balanced white lighting devices remains conceptually challenging. Here, we demonstrate two-component white light-emitting QD-LEDs with high color rendering indices (CRI) up to 78. The implementation of orange CuInS2/ZnS (CIS/ZnS) QDs with a broad emission and high quantum yield together with blue ZnCdSe/ZnS QDs in a mixed approach allowed white light emission with low blue QD content. The devices reveal only a small color drift in a wide operation voltage range. The correlated color temperature (CCT) could be adjusted between 2200 and 7200 K (from warm white to cold white) by changing the volume ratio between orange and blue QDs (1:0.5 and 1:2).
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Affiliation(s)
| | | | - A-Ra Hong
- Materials Architecturing Research Center, Korea Institute of Science and Technology (KIST) , 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Ho Seong Jang
- Materials Architecturing Research Center, Korea Institute of Science and Technology (KIST) , 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
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86
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Zhang Z, Edme K, Lian S, Weiss EA. Enhancing the Rate of Quantum-Dot-Photocatalyzed Carbon–Carbon Coupling by Tuning the Composition of the Dot’s Ligand Shell. J Am Chem Soc 2017; 139:4246-4249. [DOI: 10.1021/jacs.6b13220] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhengyi Zhang
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Kedy Edme
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Shichen Lian
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Emily A. Weiss
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
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87
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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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88
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TORIMOTO T. Nanostructure Engineering of Size-Quantized Semiconductor Particles for Photoelectrochemical Applications. ELECTROCHEMISTRY 2017. [DOI: 10.5796/electrochemistry.85.534] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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89
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Wada C, Iso Y, Isobe T, Sasaki H. Preparation and photoluminescence properties of yellow-emitting CuInS2/ZnS quantum dots embedded in TMAS-derived silica. RSC Adv 2017. [DOI: 10.1039/c7ra00081b] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Photostable silica composites containing CuInS2/ZnS/ZnS quantum dots were fabricated using a sol–gel method. Their photoluminescence quantum yields were 43–47%.
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Affiliation(s)
- Chikako Wada
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University
- Yokohama 223-8522
- Japan
| | - Yoshiki Iso
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University
- Yokohama 223-8522
- Japan
| | - Tetsuhiko Isobe
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University
- Yokohama 223-8522
- Japan
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90
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So D, Pradhan S, Konstantatos G. Solid-state colloidal CuInS 2 quantum dot solar cells enabled by bulk heterojunctions. NANOSCALE 2016; 8:16776-16785. [PMID: 27714085 DOI: 10.1039/c6nr05563j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Colloidal copper indium sulfide (CIS) nanocrystals (NCs) are Pb- and Cd-free alternatives for use as absorbers in quantum dot solar cells. In a heterojunction with TiO2, non-annealed ligand-exchanged CIS NCs form solar cells yielding a meager power conversion efficiency (PCE) of 0.15%, with photocurrents plummeting far below predicted values from absorption. Decreasing the amount of zinc during post-treatment leads to improved mobility but marginal improvement in device performance (PCE = 0.30%). By incorporating CIS into a porous TiO2 network, we saw an overall drastic improvement in device performance, reaching a PCE of 1.16%, mainly from an increase in short circuit current density (Jsc) and fill factor (FF) and a 10-fold increase in internal quantum efficiency (IQE). We have determined that by moving from a bilayer to a bulk heterojunction architecture, we have reduced the trap-assisted recombination as seen in changes in the ideality factor, the intensity dependence of the photocurrent and transient photocurrent (TPC) and photovoltage (TPV) characteristics.
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Affiliation(s)
- D So
- ICFO, Institute of Photonic Sciences, The Barcelona Institute of Science and Technology, Castelldefels 08860, Spain.
| | - S Pradhan
- ICFO, Institute of Photonic Sciences, The Barcelona Institute of Science and Technology, Castelldefels 08860, Spain.
| | - G Konstantatos
- ICFO, Institute of Photonic Sciences, The Barcelona Institute of Science and Technology, Castelldefels 08860, Spain. and Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluís Companys 23, 08010 Barcelona, Spain
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91
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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: 33] [Impact Index Per Article: 4.1] [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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92
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Sharma DK, Hirata S, Bujak L, Biju V, Kameyama T, Kishi M, Torimoto T, Vacha M. Single-particle spectroscopy of I-III-VI semiconductor nanocrystals: spectral diffusion and suppression of blinking by two-color excitation. NANOSCALE 2016; 8:13687-94. [PMID: 27376712 DOI: 10.1039/c6nr03950b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Ternary I-III-VI semiconductor nanocrystals have been explored as non-toxic alternatives to II-VI semiconductors for optoelectronic and sensing applications, but large photoluminescence spectral width and moderate brightness restrict their practical use. Here, using single-particle photoluminescence spectroscopy on nanocrystals of (AgIn)xZn2(1-x)S2 we show that the photoluminescence band is inhomogeneously broadened and that size distribution is the dominant factor in the broadening. The residual homogeneous linewidth of individual nanocrystals reaches up to 75% of the ensemble spectral width. Single nanocrystals undergo spectral diffusion which also contributes to the inhomogeneous band. Excitation with two lasers with energies above and below the bandgap reveals coexistence of two emitting donor states within one particle. Spectral diffusion in such particles is due to temporal activation and deactivation of one such state. Filling of a trap state with a lower-energy laser enables optical modulation of photoluminescence intermittency (blinking) and leads to an almost two-fold increase in brightness.
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Affiliation(s)
- Dharmendar Kumar Sharma
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1-S8-44, Meguro-ku, Tokyo 152-8552, Japan.
| | - Shuzo Hirata
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1-S8-44, Meguro-ku, Tokyo 152-8552, Japan.
| | - Lukasz Bujak
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1-S8-44, Meguro-ku, Tokyo 152-8552, Japan.
| | - Vasudevanpillai Biju
- Research Institute for Electronic Science, Hokkaido University, N20W10, Kita Ward, Sapporo 001-0020, Japan
| | - Tatsuya Kameyama
- Department of Crystalline Materials Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Marino Kishi
- Department of Crystalline Materials Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Tsukasa Torimoto
- Department of Crystalline Materials Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Martin Vacha
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1-S8-44, Meguro-ku, Tokyo 152-8552, Japan.
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93
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Reiss P, Carrière M, Lincheneau C, Vaure L, Tamang S. Synthesis of Semiconductor Nanocrystals, Focusing on Nontoxic and Earth-Abundant Materials. Chem Rev 2016; 116:10731-819. [DOI: 10.1021/acs.chemrev.6b00116] [Citation(s) in RCA: 382] [Impact Index Per Article: 47.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Peter Reiss
- Université Grenoble Alpes, INAC-SyMMES, F-38054 Grenoble Cedex 9, France
- CEA, INAC-SyMMES-STEP/LEMOH, 17 rue des Martyrs, F-38054 Grenoble Cedex 9, France
- CNRS, SPrAM, F-38054 Grenoble Cedex 9, France
| | - Marie Carrière
- Université Grenoble Alpes, INAC-SyMMES, F-38054 Grenoble Cedex 9, France
- CEA, INAC-SyMMES-CIBEST/LAN, 17 rue des Martyrs, F-38054 Grenoble Cedex 9, France
| | - Christophe Lincheneau
- Université Grenoble Alpes, INAC-SyMMES, F-38054 Grenoble Cedex 9, France
- CEA, INAC-SyMMES-STEP/LEMOH, 17 rue des Martyrs, F-38054 Grenoble Cedex 9, France
- CNRS, SPrAM, F-38054 Grenoble Cedex 9, France
| | - Louis Vaure
- Université Grenoble Alpes, INAC-SyMMES, F-38054 Grenoble Cedex 9, France
- CEA, INAC-SyMMES-STEP/LEMOH, 17 rue des Martyrs, F-38054 Grenoble Cedex 9, France
- CNRS, SPrAM, F-38054 Grenoble Cedex 9, France
| | - Sudarsan Tamang
- Department
of Chemistry, Sikkim University, Sikkim 737102, India
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94
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Scholes GD. Most Accessed Papers: An Interesting Mix. J Phys Chem Lett 2016; 7:2085-2086. [PMID: 27251315 DOI: 10.1021/acs.jpclett.6b01092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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95
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Sakamoto M, Inoue K, Okano M, Saruyama M, Kim S, So YG, Kimoto K, Kanemitsu Y, Teranishi T. Light-stimulated carrier dynamics of CuInS2/CdS heterotetrapod nanocrystals. NANOSCALE 2016; 8:9517-9520. [PMID: 27118533 DOI: 10.1039/c6nr01097k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We synthesized a heterotetrapod composed of a chalcopyrite(ch)-CuInS2 core and wurtzite(w)-CdS arms and elucidated its optical properties and light-stimulated carrier dynamics using fs-laser flash photolysis. The CuInS2/CdS heterotetrapod possessed quasi-type II band alignment, which caused much longer-lived charge separation than that in the isolated CuInS2 nanocrystal.
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Affiliation(s)
- Masanori Sakamoto
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan.
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96
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Knowles KE, Hartstein KH, Kilburn TB, Marchioro A, Nelson HD, Whitham PJ, Gamelin DR. Luminescent Colloidal Semiconductor Nanocrystals Containing Copper: Synthesis, Photophysics, and Applications. Chem Rev 2016; 116:10820-51. [DOI: 10.1021/acs.chemrev.6b00048] [Citation(s) in RCA: 233] [Impact Index Per Article: 29.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Kathryn E. Knowles
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Kimberly H. Hartstein
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Troy B. Kilburn
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Arianna Marchioro
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Heidi D. Nelson
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Patrick J. Whitham
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Daniel R. Gamelin
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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97
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Du J, Du Z, Hu JS, Pan Z, Shen Q, Sun J, Long D, Dong H, Sun L, Zhong X, Wan LJ. Zn–Cu–In–Se Quantum Dot Solar Cells with a Certified Power Conversion Efficiency of 11.6%. J Am Chem Soc 2016; 138:4201-9. [DOI: 10.1021/jacs.6b00615] [Citation(s) in RCA: 482] [Impact Index Per Article: 60.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
| | | | - Jin-Song Hu
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Molecular
Nanostructure and Nanotechnology, Institute of Chemistry, Chinese
Academy of Sciences, University of Chinese Academy of Sciences, Beijing 100190, China
| | | | - Qing Shen
- Department
of Engineering Science, University of Electro-Communications, Tokyo 182-8585, Japan
- Japan Science and Technology Agency (JST), Saitama 332-0012, Japan
| | - Jiankun Sun
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Molecular
Nanostructure and Nanotechnology, Institute of Chemistry, Chinese
Academy of Sciences, University of Chinese Academy of Sciences, Beijing 100190, China
| | | | - Hui Dong
- SEU FEI Nanopico
Center, Key Lab of MEMS of Ministry of Education, Southeast University, Nanjing 210096, China
| | - Litao Sun
- SEU FEI Nanopico
Center, Key Lab of MEMS of Ministry of Education, Southeast University, Nanjing 210096, China
| | | | - Li-Jun Wan
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Molecular
Nanostructure and Nanotechnology, Institute of Chemistry, Chinese
Academy of Sciences, University of Chinese Academy of Sciences, Beijing 100190, China
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98
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Buchmaier C, Rath T, Pirolt F, Knall AC, Kaschnitz P, Glatter O, Wewerka K, Hofer F, Kunert B, Krenn K, Trimmel G. Room temperature synthesis of CuInS2 nanocrystals. RSC Adv 2016. [DOI: 10.1039/c6ra22813e] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Herein, we investigate a synthetic approach to prepare copper indium sulfide nanocrystals at room temperature.
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99
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Raevskaya A, Rosovik O, Kozytskiy A, Stroyuk O, Dzhagan V, Zahn DRT. Non-stoichiometric Cu–In–S@ZnS nanoparticles produced in aqueous solutions as light harvesters for liquid-junction photoelectrochemical solar cells. RSC Adv 2016. [DOI: 10.1039/c6ra18313a] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A direct “green” aqueous synthesis of mercapto acetate-stabilized copper indium sulfide (CIS) nanoparticles (NPs) and core/shell CIS@ZnS NPs of a varied composition under ambient conditions and a temperature lower than 100 °C is reported.
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Affiliation(s)
- Alexandra Raevskaya
- L. V. Pysarzhevsky Institute of Physical Chemistry
- National Academy of Sciences of Ukraine
- Laboratory of Organic Photovoltaics and Electrochemistry
- Kyiv
- Ukraine
| | - Oksana Rosovik
- L. V. Pysarzhevsky Institute of Physical Chemistry
- National Academy of Sciences of Ukraine
- Laboratory of Organic Photovoltaics and Electrochemistry
- Kyiv
- Ukraine
| | - Andriy Kozytskiy
- L. V. Pysarzhevsky Institute of Physical Chemistry
- National Academy of Sciences of Ukraine
- Laboratory of Organic Photovoltaics and Electrochemistry
- Kyiv
- Ukraine
| | - Oleksandr Stroyuk
- L. V. Pysarzhevsky Institute of Physical Chemistry
- National Academy of Sciences of Ukraine
- Laboratory of Organic Photovoltaics and Electrochemistry
- Kyiv
- Ukraine
| | - Volodymyr Dzhagan
- V. E. Lashkaryov Institute of Semiconductors Physics
- National Academy of Sciences of Ukraine
- Kyiv
- Ukraine
- Semiconductor Physics
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