1
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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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2
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Chen S, Xu Y, Weng Y, Lou P, Zhang X, Bao N. Ligand exchange induced crystal structure and morphology evolution of copper-tin-sulfur binary and ternary compounds. Dalton Trans 2024. [PMID: 39005112 DOI: 10.1039/d4dt00309h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
In this manuscript, a simple one-pot heat-up method has been used to prepare multi-component copper-tin-sulfur nanomaterials, including binary Cu1.94S, ternary Cu4SnS4, and Cu1.94S/Cu4SnS4 nanocrystals by varying the reaction temperature, reaction time, and the type of copper source. Post-synthetic ligand exchange (LE) has further been introduced to replace the long-chain ligands originating from 1-dodecanethiol. It has been found that the LE process not only changes the surface ligands but also significantly affects the crystal structure and optical properties of nanocrystals. After LE, the crystal structures of Cu1.94S and Cu4SnS4 transformed to Cu7S4 and Cu3SnS4, respectively, with the Cu1.94S/Cu4SnS4 nanocrystals showing the same trend. This phenomenon could be ascribed to the loss of Cu+ originating from the strong complexation of Cu+ and ammonia with the formation of [Cu(NH3)n]2+ ions under aerobic conditions. Proton nuclear magnetic resonance (1H NMR) has been used to characterize the ligands on the surface before and after LE, which further demonstrated that the -SH was replaced during LE. Meanwhile, the band gaps of the obtained nanocrystals after LE show an obvious shift in the near-infrared region due to the evolution of crystal structures. This study will provide useful guidance for the LE of nanocrystals and the application of copper-based sulfide nanomaterials in optoelectronics and other fields.
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Affiliation(s)
- Suqin Chen
- State Key Laboratory of Material-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 210009, China.
| | - Ying Xu
- State Key Laboratory of Material-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 210009, China.
| | - Yangyang Weng
- State Key Laboratory of Material-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 210009, China.
| | - Pengfei Lou
- State Key Laboratory of Material-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 210009, China.
| | - Xiaoyan Zhang
- State Key Laboratory of Material-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 210009, China.
| | - Ningzhong Bao
- State Key Laboratory of Material-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 210009, China.
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3
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Krishnamurthi M, Gottapu S, Velpuri VR. Single-step synthesis of ternary metal chalcogenides (sf-CuInS2 and sf-CuInSe2) stripped off the organic cover and their use as a catalyst for symmetric Glaser-Hay coupling reactions. Dalton Trans 2024; 53:8593-8603. [PMID: 38690592 DOI: 10.1039/d4dt00442f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Generally, inorganic nano/microparticles produced by chemical routes are covered by organic surfactants or polymers to control their agglomeration during their synthesis. However, these surfactants and polymers negatively affect their catalytic activity because these molecules mask the surface. This work presents the synthesis of surfactant-free CuInS2 and CuInSe2 (sf-CuInS2 and sf-CuInSe2) nano/microparticles through simple reactions without surfactant or polymer coatings using LiBH4 under a thermodynamically favourable condition. These reactions are rare observations of a single-step process to produce ternary metal chalcogenides without any template assistance. We have also demonstrated efficient catalysis by sf-CuInS2 nanoparticles in the coupling reaction of substituted phenylacetylenes. We tested it as catalysts in dimerizing 1,3-diyne derivatives while using 8-diazabicyclo[5.4.0]undec-7-ene (DBU) as the base. These Glassar-Hay coupling reactions are conducted at room temperature in acetonitrile (4-7 h, depending on the substrate) using 10 mg of sf-CuInS2. The maximum yield obtained in these reactions is 97%, while the catalyst is reusable for five cycles with little difference in its ability to catalyse. The effectiveness of the catalyst is credited to the availability of a free catalytic surface.
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Affiliation(s)
| | - Sanyasinaidu Gottapu
- School of Chemistry, Univeristy of Hyderabad, Gachibowli, Hyderabad 500046, Telangana, India.
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4
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Li W, Lu G, Ding Y, Cong R, Yang T. Ba 3SnGa 10-xIn xO 20 (0 ≤ x ≤ 2): site-selective doping, band structure engineering and photocatalytic overall water splitting. Dalton Trans 2024; 53:6747-6757. [PMID: 38530769 DOI: 10.1039/d4dt00340c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
Developing new photocatalysts and deciphering the structure-property relationship are always the central topics in photocatalysis. In this study, a new photocatalyst Ba3SnGa10O20 containing two d10 metal cations was prepared by a high temperature solid state reaction, and its crystal structure was investigated by Rietveld refinements of monochromatic X-ray powder diffraction data for the first time. There are 2 Ba, 4 metal cations and 6 O independent atoms in a unit cell. Sn4+ and Ga3+ co-occupy the octahedral cavities named M1 and M2 sites, and the other two metal sites are fully occupied by Ga3+. Rational In3+-to-Ga3+ substitution was performed to reduce the potential of the conduction band minimum and enhance the light absorption ability, which was indeed confirmed using UV-vis diffuse reflectance spectra and Mott-Schottky plots for Ba3SnGa10-xInxO20 (0 ≤ x ≤ 2). Interestingly, In3+ exhibits site selective doping at M1 and M2 sites exclusively. With the light absorption ability enhanced, the photocatalytic overall water splitting activity was also improved, i.e. the photocatalytic H2 generation rate was 1.7(1) μmol h-1 for Ba3SnGa10O20, and the optimal catalyst Ba3SnGa8.5In1.5O20 loaded with 1.0 wt% Pd exhibited the H2 generation rate of 27.5(4) μmol h-1 and the apparent quantum yield at 254 nm was estimated to be 2.28% in pure water.
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Affiliation(s)
- Weihua Li
- College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, People's Republic of China.
| | - Guangxiang Lu
- College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, People's Republic of China.
| | - Yanhong Ding
- College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, People's Republic of China.
| | - Rihong Cong
- College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, People's Republic of China.
| | - Tao Yang
- College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, People's Republic of China.
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5
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Kipkorir A, Ealey G, Yu Y, Kamat PV. AgInS 2-Embedded Photocatalytic Membrane: Insights into the Excited State and Electron Transfer Dynamics. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:1373-1380. [PMID: 38157564 DOI: 10.1021/acs.langmuir.3c03044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Photocatalytic reactions at semiconductor nanocrystal surfaces are useful for synthesizing value-added chemicals using sunlight. Semiconductor nanocrystals dispersed in a rigid framework, such as polymer film, can mitigate issues such as aggregation, product separation, and other challenges that are usually encountered in suspensions or slurries. Using a cation exchange technique, we successfully embedded AgInS2 nanoparticles into a Nafion matrix, termed AgInS2-Nafion. This was achieved through a galvanic exchange between In and Ag in In2S3 present within the Nafion film, enabling an adjustable Ag:In ratio for optimized photophysical properties. As in the case of colloidal suspension, the AgInS2 particles embedded in Nafion exhibit a long absorption tail, a broad emission band with a large Stokes shift, and emission lifetimes extending into the microseconds that are characteristic of donor-acceptor pairs, DAP. Remediation of surface states with the treatment of 3-mercaptopropionic acid resulted in significant enhancement in the emission yield. Charge carrier generation through bandgap excitation as well as activation of DAP states which reside within the bandgap is probed through transient absorption spectroscopy. The photocatalytic activity of AgInS2-Nafion was probed by using thionine as an electron acceptor. The electron transfer rate constant from excited AgInS2 to thionine as observed from transient absorption spectroscopy was determined to be ∼6.3 × 1010 s-1. The design of a photoactive membrane offers new ways to carry out photocatalytic processes with greater selectivity.
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Affiliation(s)
- Anthony Kipkorir
- Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Gavin Ealey
- Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Yiseul Yu
- Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Prashant V Kamat
- Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
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6
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Chen B, Zheng W, Chun F, Xu X, Zhao Q, Wang F. Synthesis and hybridization of CuInS 2 nanocrystals for emerging applications. Chem Soc Rev 2023; 52:8374-8409. [PMID: 37947021 DOI: 10.1039/d3cs00611e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Copper indium sulfide (CuInS2) is a ternary A(I)B(III)X(VI)2-type semiconductor featuring a direct bandgap with a high absorption coefficient. In attempts to explore their practical applications, nanoscale CuInS2 has been synthesized with crystal sizes down to the quantum confinement regime. The merits of CuInS2 nanocrystals (NCs) include wide emission tunability, a large Stokes shift, long decay time, and eco-friendliness, making them promising candidates in photoelectronics and photovoltaics. Over the past two decades, advances in wet-chemistry synthesis have achieved rational control over cation-anion reactivity during the preparation of colloidal CuInS2 NCs and post-synthesis cation exchange. The precise nano-synthesis coupled with a series of hybridization strategies has given birth to a library of CuInS2 NCs with highly customizable photophysical properties. This review article focuses on the recent development of CuInS2 NCs enabled by advanced synthetic and hybridization techniques. We show that the state-of-the-art CuInS2 NCs play significant roles in optoelectronic and biomedical applications.
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Affiliation(s)
- Bing Chen
- College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, Jiangsu 210023, China.
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon 999077, Hong Kong SAR, China.
| | - Weilin Zheng
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon 999077, Hong Kong SAR, China.
- City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
| | - Fengjun Chun
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon 999077, Hong Kong SAR, China.
- City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
| | - Xiuwen Xu
- College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, Jiangsu 210023, China.
| | - Qiang Zhao
- College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, Jiangsu 210023, China.
- State Key Laboratory of Organic Electronics and Information Displays, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, Jiangsu 210023, China
| | - Feng Wang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon 999077, Hong Kong SAR, China.
- City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
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7
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Chakraborty S, Das R, Riyaz M, Das K, Singh AK, Bagchi D, Vinod CP, Peter SC. Wurtzite CuGaS 2 with an In-Situ-Formed CuO Layer Photocatalyzes CO 2 Conversion to Ethylene with High Selectivity. Angew Chem Int Ed Engl 2023; 62:e202216613. [PMID: 36537874 DOI: 10.1002/anie.202216613] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/18/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022]
Abstract
We present surface reconstruction-induced C-C coupling whereby CO2 is converted into ethylene. The wurtzite phase of CuGaS2. undergoes in situ surface reconstruction, leading to the formation of a thin CuO layer over the pristine catalyst, which facilitates selective conversion of CO2 to ethylene (C2 H4 ). Upon illumination, the catalyst efficiently converts CO2 to C2 H4 with 75.1 % selectivity (92.7 % selectivity in terms of Relectron ) and a 20.6 μmol g-1 h-1 evolution rate. Subsequent spectroscopic and microscopic studies supported by theoretical analysis revealed operando-generated Cu2+ , with the assistance of existing Cu+ , functioning as an anchor for the generated *CO and thereby facilitating C-C coupling. This study demonstrates strain-induced in situ surface reconstruction leading to heterojunction formation, which finetunes the oxidation state of Cu and modulates the CO2 reduction reaction pathway to selective formation of ethylene.
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Affiliation(s)
- Subhajit Chakraborty
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur, Bangalore, 560064, India.,School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur, Bangalore, 560064, India
| | - Risov Das
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur, Bangalore, 560064, India.,School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur, Bangalore, 560064, India
| | - Mohd Riyaz
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur, Bangalore, 560064, India.,School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur, Bangalore, 560064, India
| | - Kousik Das
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur, Bangalore, 560064, India.,School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur, Bangalore, 560064, India
| | - Ashutosh Kumar Singh
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur, Bangalore, 560064, India.,Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur, Bangalore, 560064, India
| | - Debabrata Bagchi
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur, Bangalore, 560064, India.,School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur, Bangalore, 560064, India
| | - Chathakudath P Vinod
- Catalysis and Inorganic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 410008, India
| | - Sebastian C Peter
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur, Bangalore, 560064, India.,School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur, Bangalore, 560064, India
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8
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Zubair M, Lebedev VA, Mishra M, Adegoke TE, Amiinu IS, Zhang Y, Cabot A, Singh S, Ryan KM. Precursor-Mediated Colloidal Synthesis of Compositionally Tunable Cu-Sb-M-S (M = Zn, Co, and Ni) Nanocrystals and Their Transport Properties. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2022; 34:10528-10537. [PMID: 36530939 PMCID: PMC9753559 DOI: 10.1021/acs.chemmater.2c02605] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 11/08/2022] [Indexed: 06/17/2023]
Abstract
The solution-based colloidal synthesis of multinary semiconductor compositions has allowed the design of new inorganic materials impacting a large variety of applications. Yet there are certain compositions that have remained elusive-particularly quaternary structures of transition metal-based (e.g., Co, Zn, Ni, Fe, Mn, and Cr) copper antimony chalcogenides. These are widely sought for tuning the electrical and thermal conductivity as a function of the size, composition, and crystal phase. In this work, a facile hot injection approach for the synthesis of three different tetrahedrite-substituted nanocrystals (NCs) (Cu10Zn2Sb4S13, Cu10Co2Sb4S13, and Cu10Ni1.5Sb4S13) and their growth mechanisms are investigated. We reveal that the interplay between the Zn, Ni, and Co precursors on the basis of thiophilicity is key to obtaining pure phase NCs with controlled size and shape. While all of the synthesized crystal phases display outstanding low thermal conductivity, the Cu10.5Sb4Ni1.5S13 system shows the most enhanced electrical conductivity compared to Cu10Zn2Sb4S13 and Cu10Co2Sb4S13. This study highlights an effective synthesis strategy for the growth of complex quaternary nanocrystals and their high potential for application in thermoelectrics.
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Affiliation(s)
- Maria Zubair
- Department
of Chemical Sciences and Bernal Institute, University of Limerick, V94 T9PX Limerick, Ireland
| | - Vasily A. Lebedev
- Department
of Chemical Sciences and Bernal Institute, University of Limerick, V94 T9PX Limerick, Ireland
| | - Mohini Mishra
- Department
of Chemical Sciences and Bernal Institute, University of Limerick, V94 T9PX Limerick, Ireland
| | - Temilade Esther Adegoke
- Department
of Chemical Sciences and Bernal Institute, University of Limerick, V94 T9PX Limerick, Ireland
| | - Ibrahim Saana Amiinu
- Department
of Chemical Sciences and Bernal Institute, University of Limerick, V94 T9PX Limerick, Ireland
| | - Yu Zhang
- Catalonia
Institute for Energy Research (IREC), 08930 Barcelona, Spain
| | - Andreu Cabot
- Catalonia
Institute for Energy Research (IREC), 08930 Barcelona, Spain
- Catalan
Institution for Research and Advanced Studies (ICREA), Passeig de Lluís Companys
23, 08010 Barcelona, Spain
| | - Shalini Singh
- Department
of Chemical Sciences and Bernal Institute, University of Limerick, V94 T9PX Limerick, Ireland
| | - Kevin M. Ryan
- Department
of Chemical Sciences and Bernal Institute, University of Limerick, V94 T9PX Limerick, Ireland
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9
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Radhakrishnan J, Kareem A, Ratna S, Senthilkumar S, Biswas K. Snowflake-like Metastable Wurtzite CuGaS 2/MoS 2 Composite with Superior Electrochemical HER Activity. ACS OMEGA 2022; 7:43883-43893. [PMID: 36506218 PMCID: PMC9730465 DOI: 10.1021/acsomega.2c05116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 10/28/2022] [Indexed: 06/17/2023]
Abstract
In the present work, we report the synthesis of wurtzite CuGaS2 and its composite with MoS2 and explored their efficacy toward two important applications, viz. electrocatalytic hydrogen evolution reaction (HER) and adsorption of Rhodamine B dye. The CuGaS2 was synthesized via a low-temperature ethylenediamine-mediated solvothermal method. The obtained products were characterized by various techniques such as X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy to ascertain the phase formation, surface morphology, and elemental oxidation states. The electrocatalytic activity of the wurtzite CuGaS2 and CuGaS2/MoS2 composites toward HER was investigated, wherein the CuGaS2/MoS2 composite exhibited superior activity when compared to the pristine sample with a small Tafel slope of 56.2 mV dec-1 and an overpotential value of -464 mV at the current density of 10 mA cm-2. On the other hand, the synthesized CuGaS2 also showed an impressive adsorption behavior toward Rhodamine B dye with 99% adsorption in 60 min, which is relatively better than that observed with the composite material.
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Affiliation(s)
- Jagan Radhakrishnan
- Chemistry
Division, School of Advanced Sciences, Vellore
Institute of Technology, Chennai600127, India
| | - Abdul Kareem
- Department
of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore632014, India
| | - Srabanti Ratna
- Chemistry
Division, School of Advanced Sciences, Vellore
Institute of Technology, Chennai600127, India
| | - Sellappan Senthilkumar
- Department
of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore632014, India
| | - Krishnendu Biswas
- Chemistry
Division, School of Advanced Sciences, Vellore
Institute of Technology, Chennai600127, India
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10
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Torimoto T, Kameyama T, Uematsu T, Kuwabata S. Controlling Optical Properties and Electronic Energy Structure of I-III-VI Semiconductor Quantum Dots for Improving Their Photofunctions. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C: PHOTOCHEMISTRY REVIEWS 2022. [DOI: 10.1016/j.jphotochemrev.2022.100569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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11
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Bian Q, Liao H, Tang C, Li K, Wan J, Xiao Y, Cheng B, Lei S. Sulfur-source-dependent phase-selective preparation of Cu 3NiInSnS 6 nanocrystals and their optical and magnetic properties. Dalton Trans 2022; 51:11416-11426. [PMID: 35822345 DOI: 10.1039/d2dt01643e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Multifunctional multinary metal chalcogenides have long been a research hotspot in the field of materials chemistry due to their rich composition, flexible structure, excellent properties and wide range of applications. However, the exploration of complex quinary chalcogenides is still challenging. In this work, for the first time, we have developed the controlled synthesis of quinary Cu3NiInSnS6 nanocrystals, realizing the selective preparation of hexagonal wurtzite and cubic zinc blende metastable phases by simply tuning the sulfur source. The phase structure analysis reveals that both metastable phases possess a disordered structure with a random distribution of metal atoms in the unit cells. The fabricated wurtzite and zinc blende-structure Cu3NiInSnS6 nanocrystals have a direct band gap of 1.82 and 1.94 eV, respectively, and both exhibit superparamagnetic behavior at low temperatures. This work is of great significance for the development of novel multifunctional materials based on metastable multinary metal chalcogenide phases.
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Affiliation(s)
- Qinghuan Bian
- School of Physics and Materials Science, Nanchang University, Nanchang, Jiangxi 330031, P. R. China.
| | - Huanxi Liao
- School of Physics and Materials Science, Nanchang University, Nanchang, Jiangxi 330031, P. R. China.
| | - Changcun Tang
- School of Physics and Materials Science, Nanchang University, Nanchang, Jiangxi 330031, P. R. China.
| | - Kunjiao Li
- School of Physics and Materials Science, Nanchang University, Nanchang, Jiangxi 330031, P. R. China.
| | - Jiabao Wan
- School of Physics and Materials Science, Nanchang University, Nanchang, Jiangxi 330031, P. R. China.
| | - Yanhe Xiao
- School of Physics and Materials Science, Nanchang University, Nanchang, Jiangxi 330031, P. R. China.
| | - Baochang Cheng
- School of Physics and Materials Science, Nanchang University, Nanchang, Jiangxi 330031, P. R. China.
| | - Shuijin Lei
- School of Physics and Materials Science, Nanchang University, Nanchang, Jiangxi 330031, P. R. China.
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12
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Wu X, Li B, Zhu Z, Chueh CC, Jen AKY. Designs from single junctions, heterojunctions to multijunctions for high-performance perovskite solar cells. Chem Soc Rev 2021; 50:13090-13128. [PMID: 34676850 DOI: 10.1039/d1cs00841b] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hybrid metal-halide perovskite solar cells (PVSCs) have drawn unprecedented attention during the last decade due to their superior photovoltaic performance, facile and low-cost fabrication, and potential for roll-to-roll mass production and application for portable devices. Through collective composition, interface, and process engineering, a comprehensive understanding of the structure-property relationship and carrier dynamics of perovskites has been established to help achieve a very high certified power conversion efficiency (PCE) of 25.5%. Apart from material properties, the modified heterojunction design and device configuration evolution also play crucial roles in enhancing the efficiency. The adoption and/or modification of heterojunction structures have been demonstrated to effectively suppress the carrier recombination and potential losses in PVSCs. Moreover, the employment of multijunction structures has been shown to reduce thermalization losses, achieving a high PCE of 29.52% in perovskite/silicon tandem solar cells. Therefore, understanding the evolution of the device configuration of PVSCs from single junction, heterojunction to multijunction designs is helpful for the researchers in this field to further boost the PCE beyond 30%. Herein, we summarize the evolution and progress of the single junction, heterojunction and multijunction designs for high-performance PVSCs. A comprehensive review of the fundamentals and working principles of these designs is presented. We first introduce the basic working principles of single junction PVSCs and the intrinsic properties (such as crystallinity and defects) in perovskite films. Afterwards, the progress of diverse heterojunction designs and perovskite-based multijunction solar cells is synopsized and reviewed. Meanwhile, the challenges and strategies to further enhance the performance are also summarized. At the end, the perspectives on the future development of perovskite-based solar cells are provided. We hope this review can provide the readers with a quick catchup on this emerging solution-processable photovoltaic technology, which is currently at the transition stage towards commercialization.
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Affiliation(s)
- Xin Wu
- Department of Chemistry, City University of Hong Kong, Kowloon 999077, Hong Kong.
| | - Bo Li
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong
| | - Zonglong Zhu
- Department of Chemistry, City University of Hong Kong, Kowloon 999077, Hong Kong. .,Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon 999077, Hong Kong
| | - Chu-Chen Chueh
- Department of Chemical Engineering and Advanced Research Center for Green Materials Science and Technology, National Taiwan University, Taipei, 10617, Taiwan.
| | - Alex K-Y Jen
- Department of Chemistry, City University of Hong Kong, Kowloon 999077, Hong Kong. .,Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong.,Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon 999077, Hong Kong.,Department of Materials Science & Engineering, University of Washington, Seattle, Washington, 98195, USA
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13
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Morselli G, Villa M, Fermi A, Critchley K, Ceroni P. Luminescent copper indium sulfide (CIS) quantum dots for bioimaging applications. NANOSCALE HORIZONS 2021; 6:676-695. [PMID: 34264247 DOI: 10.1039/d1nh00260k] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Copper indium sulfide (CIS) quantum dots are ideal for bioimaging applications, by being characterized by high molar absorption coefficients throughout the entire visible spectrum, high photoluminescence quantum yield, high tolerance to the presence of lattice defects, emission tunability from the red to the near-infrared spectral region by changing their dimensions and composition, and long lifetimes (hundreds of nanoseconds) enabling time-gated detection to increase signal-to-noise ratio. The present review collects: (i) the most common procedures used to synthesize stable CIS QDs and the possible strategies to enhance their colloidal stability in aqueous environment, a property needed for bioimaging applications; (ii) their photophysical properties and parameters that affect the energy and brightness of their photoluminescence; (iii) toxicity and bioimaging applications of CIS QDs, including tumor targeting, time-gated detection and multimodal imaging, as well as theranostics. Future perspectives are analyzed in view of advantages and potential limitations of CIS QDs compared to most traditional QDs.
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Affiliation(s)
- Giacomo Morselli
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Bologna, 40126, Italy.
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14
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Tappan BA, Chu W, Mecklenburg M, Prezhdo OV, Brutchey RL. Discovery of a Wurtzite-like Cu 2FeSnSe 4 Semiconductor Nanocrystal Polymorph and Implications for Related CuFeSe 2 Materials. ACS NANO 2021; 15:13463-13474. [PMID: 34346226 DOI: 10.1021/acsnano.1c03974] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
I2-II-IV-VI4 and I-III-VI2 semiconductor nanocrystals have found applications in photovoltaics and other optoelectronic technologies because of their low toxicity and efficient light absorption into the near-infrared. Herein, we report the discovery of a metastable wurtzite-like polymorph of Cu2FeSnSe4, a member of the I2-II-IV-VI4 family of semiconductors containing only earth-abundant metals. Density functional theory calculations on this metastable polymorph of Cu2FeSnSe4 indicate that it may be a superior semiconductor for solar energy and optoelectronics applications compared to the thermodynamically preferred stannite polymorph, since the former displays a sharper dispersion of energy levels near the conduction band minimum that can enhance electron mobility and suppress hot electron cooling. The experimental optical band gap was measured by the inverse logarithmic derivative method to be direct, in agreement with theory, and in the range of 1.48-1.59 eV. Mechanistic studies reveal that this metastable phase derives from intermediate Cu3Se2 nanocrystals that serve as a structural template for the final hexagonal wurtzite-like product. We compare the chemistry of wurtzite-like Cu2FeSnSe4 to the related CuFeSe2 material system. Our experimental and computational comparisons between Cu2FeSnSe4 and CuFeSe2 help explain both the crystal chemistry of CuFeSe2 that prevents it from forming wurtzite-like polymorphs and the essential role of Sn in stabilizing the metastable structure of Cu2FeSnSe4. This work provides insight into the importance of elemental composition when designing syntheses for metastable materials.
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Affiliation(s)
- Bryce A Tappan
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Weibin Chu
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Matthew Mecklenburg
- Core Center of Excellence in Nano Imaging, University of Southern California, Los Angeles, California 90089, United States
| | - Oleg V Prezhdo
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Richard L Brutchey
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
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15
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Gonçalves BF, LaGrow AP, Pyrlin S, Owens-Baird B, Botelho G, Marques LSA, Ramos MMD, Kovnir K, Lanceros-Mendez S, Kolen’ko YV. Large-Scale Synthesis of Semiconducting Cu(In,Ga)Se 2 Nanoparticles for Screen Printing Application. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1148. [PMID: 33925010 PMCID: PMC8147049 DOI: 10.3390/nano11051148] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 04/23/2021] [Accepted: 04/26/2021] [Indexed: 01/10/2023]
Abstract
During the last few decades, the interest over chalcopyrite and related photovoltaics has been growing due the outstanding structural and electrical properties of the thin-film Cu(In,Ga)Se2 photoabsorber. More recently, thin film deposition through solution processing has gained increasing attention from the industry, due to the potential low-cost and high-throughput production. To this end, the elimination of the selenization procedure in the synthesis of Cu(In,Ga)Se2 nanoparticles with following dispersion into ink formulations for printing/coating deposition processes are of high relevance. However, most of the reported syntheses procedures give access to tetragonal chalcopyrite Cu(In,Ga)Se2 nanoparticles, whereas methods to obtain other structures are scarce. Herein, we report a large-scale synthesis of high-quality Cu(In,Ga)Se2 nanoparticles with wurtzite hexagonal structure, with sizes of 10-70 nm, wide absorption in visible to near-infrared regions, and [Cu]/[In + Ga] ≈ 0.8 and [Ga]/[Ga + In] ≈ 0.3 metal ratios. The inclusion of the synthesized NPs into a water-based ink formulation for screen printing deposition results in thin films with homogenous thickness of ≈4.5 µm, paving the way towards environmentally friendly roll-to-roll production of photovoltaic systems.
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Affiliation(s)
- Bruna F. Gonçalves
- International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal; (B.F.G.); (A.P.L.)
- Center of Physics, University of Minho, 4710-057 Braga, Portugal; (S.P.); (L.S.A.M.); (M.M.D.R.); (S.L.-M.)
- Center of Chemistry, University of Minho, 4710-057 Braga, Portugal;
| | - Alec P. LaGrow
- International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal; (B.F.G.); (A.P.L.)
| | - Sergey Pyrlin
- Center of Physics, University of Minho, 4710-057 Braga, Portugal; (S.P.); (L.S.A.M.); (M.M.D.R.); (S.L.-M.)
| | - Bryan Owens-Baird
- Department of Chemistry, Iowa State University, Ames, IA 50011, USA; (B.O.-B.); (K.K.)
- Ames Laboratory, U.S. Department of Energy, Ames, IA 50011, USA
| | - Gabriela Botelho
- Center of Chemistry, University of Minho, 4710-057 Braga, Portugal;
| | - Luis S. A. Marques
- Center of Physics, University of Minho, 4710-057 Braga, Portugal; (S.P.); (L.S.A.M.); (M.M.D.R.); (S.L.-M.)
| | - Marta M. D. Ramos
- Center of Physics, University of Minho, 4710-057 Braga, Portugal; (S.P.); (L.S.A.M.); (M.M.D.R.); (S.L.-M.)
| | - Kirill Kovnir
- Department of Chemistry, Iowa State University, Ames, IA 50011, USA; (B.O.-B.); (K.K.)
- Ames Laboratory, U.S. Department of Energy, Ames, IA 50011, USA
| | - Senentxu Lanceros-Mendez
- Center of Physics, University of Minho, 4710-057 Braga, Portugal; (S.P.); (L.S.A.M.); (M.M.D.R.); (S.L.-M.)
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
- Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain
| | - Yury V. Kolen’ko
- International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal; (B.F.G.); (A.P.L.)
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16
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Synthesis and Characterization of CuIn 1-xGa xSe 2 Semiconductor Nanocrystals. NANOMATERIALS 2020; 10:nano10102066. [PMID: 33086765 PMCID: PMC7590017 DOI: 10.3390/nano10102066] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/22/2020] [Accepted: 10/11/2020] [Indexed: 01/15/2023]
Abstract
In this paper, the synthesis and characterization of CuIn1−xGaxSe2 (0 ≤ x ≤ 1) nanocrystals are reported with the influences of x value on the structural, morphological, and optical properties of the nanocrystals. The X-ray diffraction (XRD) results showed that the nanocrystals were of chalcopyrite structure with particle size in the range of 11.5–17.4 nm. Their lattice constants decreased with increasing Ga content. Thus, the x value of the CuIn1−xGaxSe2 nanocrystals was estimated by Vegard’s law. Transmission electron microscopy (TEM) analysis revealed that the average particle size of the nanocrystals agreed with the results of XRD. Well-defined lattice fringes were shown in the TEM images. An analysis of the absorption spectra indicated that the band gap energy of these CuIn1−xGaxSe2 nanocrystals was tuned from 1.11 to 1.72 eV by varying the x value from 0 to 1. The Raman spectra indicated that the A1 optical vibrational mode of the nanocrystals gradually shifted to higher wavenumber with increasing x value. A simple theoretical equation for the A1 mode frequency was proposed. The plot of this equation showed the same trend as the experimental data.
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17
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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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18
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Bai X, Purcell-Milton F, Gun'ko YK. Near-infrared-emitting CIZSe/CIZS/ZnS colloidal heteronanonail structures. NANOSCALE 2020; 12:15295-15303. [PMID: 32648560 DOI: 10.1039/d0nr02777d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Multicomponent quantum nanostructures have attracted significant attention due to their potential applications in photovoltaics, optoelectronics and bioimaging. However, the preparation of anisotropic quaternary nanoheterostructures such as Cu-In-Zn-S(Se) (CIZS and CIZSe) is still very poorly explored and understood. Here, we report the synthesis and studies of NIR emissive CIZSe/CIZS/ZnS core/shell/shell nanoheterostructures with a unique hetero-nanonail (HNN) morphology. In our approach, wurtzite (WZ) CIZSe/CIZS core/shell QDs have been prepared by depositing a CIZS shell onto a previously synthesized chalcopyrite CIZSe QD core using a seeded growth technique. Following careful control of the ZnS shell growth resulted in the formation of the distinct nail-like CIZSe/CIZS/ZnS nanoheterostructure, where the CIZSe/CIZS core/shell QD is located near the "head" of the nail. The emission in the NIR region of the CIZSe/CIZS/ZnS nanocrystals is assigned to the CIZSe/CIZS core/shell quantum nanostructure. The CIZSe/CIZS/ZnS HNNs are particularly interesting due to a range of potential applications including bioimaging, biosensing, energy harvesting and NIR photodetectors. Finally, we also report the successful controlled growth of gold nanoparticles on the surface of the CIZSe/CIZS/ZnS nanonail-like heterostructure and the investigation of the resulting multimodal nanocomposites.
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Affiliation(s)
- Xue Bai
- School of Chemistry and CRANN institute, University of Dublin, Trinity College, Dublin, D02, Ireland.
| | - Finn Purcell-Milton
- School of Chemistry and CRANN institute, University of Dublin, Trinity College, Dublin, D02, Ireland. and BEACON, Bioeconomy SFI Research Centre, University College Dublin, Dublin 4, Ireland
| | - Yurii K Gun'ko
- School of Chemistry and CRANN institute, University of Dublin, Trinity College, Dublin, D02, Ireland. and BEACON, Bioeconomy SFI Research Centre, University College Dublin, Dublin 4, Ireland and ITMO University, St. Petersburg 197101, Russia
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19
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Bai T, Wang X, Dong Y, Xing S, Shi Z, Feng S. One-Pot Synthesis of High-Quality AgGaS 2/ZnS-based Photoluminescent Nanocrystals with Widely Tunable Band Gap. Inorg Chem 2020; 59:5975-5982. [PMID: 32286807 DOI: 10.1021/acs.inorgchem.9b03768] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Herein, we present a facile colloidal method to synthesize the high-quality AgGaS2 nanocrystals (NCs) within 2 min via exploiting the high-reactivity S precursor and then extend this synthetic strategy to the preparation of AgGaS2/ZnS core-shell NCs by a one-pot method without prior purification of AgGaS2 core. The as-synthesized samples were structurally characterized to confrim the formation of AgGaS2/ZnS core-shell NCs. The energy band gap of the AgGaS2/ZnS NCs can be effectively tunable from 2.98 to 2.83 eV by the control of their nonstoichiometry and further continuously decreases to 1.90 eV by the preparation of alloyed AgGaxIn1-xS2/ZnS NCs (1 ≤ x ≤ 0). Benefitting from the efficient band gap modulations, the photoluminescence (PL) colors of the AgGaS2-based NCs can cover almost the whole visible region from blue (460 nm) to red (671 nm). Our work demonstrates the one-pot synthesis of AgGaS2/ZnS core-shell NCs and their band gap engineering, which is of crucial in scalability toward industrial application and in tailoring optical characteristics of I-III-VI2 materials.
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Affiliation(s)
- Tianyu Bai
- College of Medical Laboratory, Dalian Medical University, No. 9 West Section Lvshun South Road, Dalian 116044, PR China
| | - Xuemin Wang
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, PR China
| | - Yanyu Dong
- College of Medical Laboratory, Dalian Medical University, No. 9 West Section Lvshun South Road, Dalian 116044, PR China
| | - Shanghua Xing
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Zhan Shi
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Shouhua Feng
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China
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20
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Huangfu X, Shen Y, Yang A, Liu L, Luo W, Zhao W. Synthesis of water soluble CuGaS 2/ZnS quantum dots for ultrasensitive fluorescent detection of alkaline phosphatase based on inner filter effect. Colloids Surf B Biointerfaces 2020; 191:110984. [PMID: 32278281 DOI: 10.1016/j.colsurfb.2020.110984] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 03/16/2020] [Accepted: 03/18/2020] [Indexed: 12/30/2022]
Abstract
Developing monitoring technique for alkaline phosphatase (ALP) is crucial due to the important role it plays in living cells. Here, a kind of biocompatible glutathione-modified CuGaS2/ZnS quantum dots (GSH-CGS/ZnS QDs) was used as a fluorescent substance and then fabricated "turn-off" fluorescent biosensor for detection of ALP by help of inner filter effect (IFE). Firstly, we prepared CuGaS2/ZnS (CGS/ZnS) QDs using solvothermal method and explored the efficient ligand (GSH) exchanges strategy for transferring oil-soluble CGS/ZnS QDs to aqueous phase. More importantly, we also explored the potential biological applications of the nanohybrid QDs. The obtained GSH-CGS/ZnS QDs emitted strong yellow fluorescence with the maximum excitation (400 nm) and emission (601 nm). Then, GSH-CGS/ZnS QDs were mixed with p-nitrophenylphosphate (PNPP) and ALP. PNPP could be hydrolyzed to p-nitrophenol (PNP) by help of catalysis of ALP, and the excitation spectrum of the GSH-CGS/ZnS QDs overlapped well with the absorption spectrum of PNP, so the fluorescence of GSH-CGS/ZnS QDs was initially quenched via the so-called "IFE". Finally, a novel "turn-off" biosensor for sensitive detection of ALP in the range of 0.05-10 U L -1(R2 = 0.98) with a detection limit of 0.01 U L-1 was successfully obtained. Results indicated that I-III-VI2 nanocrystals have great potential for their promising biomedical application.
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Affiliation(s)
- Xiaoxia Huangfu
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Yang Shen
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Anzi Yang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Lixiao Liu
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Wen Luo
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Wenbo Zhao
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China.
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21
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Gu C, Li C, Zhang J, Li X, Wang L, Ju Y, Liu Y, Xu Y. Ultra-effective near-infrared Photothermal therapy for the prostate cancer Nursing care through novel intended and surface tailored photo-responsive Ga-Au@MPS nanovesicles. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2020; 202:111685. [DOI: 10.1016/j.jphotobiol.2019.111685] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 10/26/2019] [Accepted: 11/05/2019] [Indexed: 12/21/2022]
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22
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Xu Y, Fu Q, Lei S, Xiong J, Sun S, Bian Q, Xiao Y, Cheng B. Wurtzite CuNi 2InS 4 Nanocrystals: A Quaternary Chalcogenide Magnetic Semiconductor. Inorg Chem 2019; 58:15283-15290. [PMID: 31701750 DOI: 10.1021/acs.inorgchem.9b02285] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
For the first time, quaternary chalcogenide CuNi2InS4 nanocrystals with a wurtzite structure have been designed and fabricated as a new magnetic semiconductor. The phase structure analysis suggests that the synthesized wurtzite CuNi2InS4 phase has a disordered structure in which Cu+, Ni2+, and In3+ ions share the same lattice site of the unit cell with a random cation distribution. The prepared CuNi2InS4 nanocrystals have uniform bullet-like morphology, small size distribution, good monodispersity, and high crystallinity. The magnetic properties investigation reveals that the wurtzite CuNi2InS4 nanocrystals can exhibit a weak ferromagnetic moment with the blocking temperature at around 13 K thanks to the disordered wurtzite structure and the high content of magnetic Ni2+ ions. As for the semiconducting properties, the as-obtained wurtzite CuNi2InS4 nanocrystals show a strong and broad visible light absorption and have a direct bandgap of 1.45 eV. Due to their favorable optical properties, the fabricated thin film of CuNi2InS4 nanocrystals exhibits a good photoelectric response to the solar spectrum, which makes the obtained new phase potential candidate for applications in the photovoltaics. This work demonstrates a new metastable I-II2-III-VI4 chalcogenide that can be used to render multiple functionalities and applications.
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Affiliation(s)
- Yueling Xu
- School of Materials Science and Engineering , Nanchang University , Nanchang , Jiangxi 330031 , China
| | - Qi Fu
- School of Materials Science and Engineering , Nanchang University , Nanchang , Jiangxi 330031 , China
| | - Shuijin Lei
- School of Materials Science and Engineering , Nanchang University , Nanchang , Jiangxi 330031 , China
| | - Jinsong Xiong
- School of Materials Science and Engineering , Nanchang University , Nanchang , Jiangxi 330031 , China
| | - Shunqiang Sun
- School of Materials Science and Engineering , Nanchang University , Nanchang , Jiangxi 330031 , China
| | - Qinghuan Bian
- School of Materials Science and Engineering , Nanchang University , Nanchang , Jiangxi 330031 , China
| | - Yanhe Xiao
- School of Materials Science and Engineering , Nanchang University , Nanchang , Jiangxi 330031 , China
| | - Baochang Cheng
- School of Materials Science and Engineering , Nanchang University , Nanchang , Jiangxi 330031 , China
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23
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Wang H, Hu J, Zhu M, Li Y, Qian H, Shen X, Liebner F, Rosenau T. Full-color-emitting (CuInS 2)ZnS-alloyed core/shell quantum dots with trimethoxysilyl end-capped ligands soluble in an ionic liquid. RSC Adv 2019; 9:25576-25582. [PMID: 35530065 PMCID: PMC9070397 DOI: 10.1039/c9ra03066b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 07/24/2019] [Indexed: 11/21/2022] Open
Abstract
Zinc-copper-indium sulfide (ZCIS)-alloyed quantum dots are emerging as a new family of low toxic I-III-VI semiconductors due to their broad and color-tunable emissions as well as large Stokes shifts. Here, we fabricated a series of ZCIS QDs with tunable PL wavelengths and band-gap energies via a facile strategy by varying the ratio of A1-3 stock (Cu+/In3+) to the B stock (Zn2+) content. The ZnS shell was formed to improve the PL emission efficiency of the core nanoparticles and the PL emission wavelength of the resulting ZCIS/ZnS NCs gradually blue-shifted with an increase in the number of shell layers, resulting in a wide range of emissions from 800 nm to 518 nm that can be tuned by the core compositions or shell layer numbers for ZCIS/ZnS. Finally, the long-chain ligands dodecanethiol/octadecylamine on the quantum dots' surface were efficiently replaced by (3-mercaptopropyl)trimethoxysilane, thus enabling their solubility in an ionic liquid, which was confirmed via GC-MS. It also benefited for the co-dissolution of the polymers and chemical binding with other materials through the reactive silanol group, which provide stable and well-distributed ZCIS/ZnS QDs composites or surface coating by the QDs.
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Affiliation(s)
- Huiqing Wang
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology Anhui 230009 China
- Division of Chemistry of Renewables, Department of Chemistry, University of Natural Resources and Life Sciences Tulln 3430 Austria
| | - Jiayuan Hu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology Anhui 230009 China
| | - Min Zhu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology Anhui 230009 China
| | - Yucheng Li
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology Anhui 230009 China
| | - Hao Qian
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology Anhui 230009 China
| | - Xiaofei Shen
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology Anhui 230009 China
| | - Falk Liebner
- Division of Chemistry of Renewables, Department of Chemistry, University of Natural Resources and Life Sciences Tulln 3430 Austria
| | - Thomas Rosenau
- Division of Chemistry of Renewables, Department of Chemistry, University of Natural Resources and Life Sciences Tulln 3430 Austria
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24
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Kumar A. Current Trends in Cellulose Assisted Combustion Synthesis of Catalytically Active Nanoparticles. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b01007] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Anand Kumar
- Department of Chemical Engineering, Qatar University, P.O. Box 2713, Doha, Qatar
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25
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Bai X, Purcell-Milton F, Gun'ko YK. Optical Properties, Synthesis, and Potential Applications of Cu-Based Ternary or Quaternary Anisotropic Quantum Dots, Polytypic Nanocrystals, and Core/Shell Heterostructures. NANOMATERIALS 2019; 9:nano9010085. [PMID: 30634642 PMCID: PMC6359286 DOI: 10.3390/nano9010085] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 12/28/2018] [Accepted: 12/31/2018] [Indexed: 12/29/2022]
Abstract
This review summaries the optical properties, recent progress in synthesis, and a range of applications of luminescent Cu-based ternary or quaternary quantum dots (QDs). We first present the unique optical properties of the Cu-based multicomponent QDs, regarding their emission mechanism, high photoluminescent quantum yields (PLQYs), size-dependent bandgap, composition-dependent bandgap, broad emission range, large Stokes’ shift, and long photoluminescent (PL) lifetimes. Huge progress has taken place in this area over the past years, via detailed experimenting and modelling, giving a much more complete understanding of these nanomaterials and enabling the means to control and therefore take full advantage of their important properties. We then fully explore the techniques to prepare the various types of Cu-based ternary or quaternary QDs (including anisotropic nanocrystals (NCs), polytypic NCs, and spherical, nanorod and tetrapod core/shell heterostructures) are introduced in subsequent sections. To date, various strategies have been employed to understand and control the QDs distinct and new morphologies, with the recent development of Cu-based nanorod and tetrapod structure synthesis highlighted. Next, we summarize a series of applications of these luminescent Cu-based anisotropic and core/shell heterostructures, covering luminescent solar concentrators (LSCs), bioimaging and light emitting diodes (LEDs). Finally, we provide perspectives on the overall current status, challenges, and future directions in this field. The confluence of advances in the synthesis, properties, and applications of these Cu-based QDs presents an important opportunity to a wide-range of fields and this piece gives the reader the knowledge to grasp these exciting developments.
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Affiliation(s)
- Xue Bai
- School of Chemistry and CRANN Institute, Trinity College Dublin, Dublin 2, Dublin, Ireland.
| | - Finn Purcell-Milton
- School of Chemistry and CRANN Institute, Trinity College Dublin, Dublin 2, Dublin, Ireland.
| | - Yuri K Gun'ko
- School of Chemistry and CRANN Institute, Trinity College Dublin, Dublin 2, Dublin, Ireland.
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26
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Liu Z, Liu J, Huang Y, Li J, Yuan Y, Ye H, Zhu D, Wang Z, Tang A. From one-dimensional to two-dimensional wurtzite CuGaS 2 nanocrystals: non-injection synthesis and photocatalytic evolution. NANOSCALE 2018; 11:158-169. [PMID: 30525146 DOI: 10.1039/c8nr07353h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Multinary copper-based chalcogenides exhibit significant performance in photocatalytic hydrogen evolution due to their suitable optical bandgap for visible light absorption and environmentally friendly character. Herein, high-quality wurtzite CuGaS2 (CGS) nanocrystals (NCs) were synthesized by using a one-step heating-up process without any injection, and the morphology could be tuned from one-dimensional (1D) to two-dimensional (2D) by precise choice of surface ligands and gallium precursors. The formation mechanism of CGS NCs was studied comprehensively by means of the temporal-evolution of the morphology, crystal structure and optical absorption results. The reaction started from djurleite Cu31S16 NCs, and then proceeded with the formation of Cu31S16-CGS heteronanostructures (HNS), and finally the transformation from HNS to monophasic CGS nanorods took place with prolonging of the synthesis time. The optical bandgap and the energy level of the different-dimensional CGS NCs exhibited a strong dependence on the morphology change, which correlated with the percentage of the exposed {001} and {100} facets. The theoretical calculation based on density functional theory (DFT) revealed that the (001) surface facilitated the charge transport rather than the (100) surface, which was consistent with the electrochemical impedance spectroscopy (EIS) results. As a result, the 2D CGS nanoplates with more exposed {001} facets exhibited an attractive photocatalytic hydrogen production activity under simulated solar illumination as compared to 1D and quasi-2D counterparts. This study demonstrates that control over the dimension of I-III-V group semiconductor NCs could lead to a significant improvement of the photocatalytic hydrogen evolution.
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Affiliation(s)
- Zheming Liu
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, School of Science, Beijing JiaoTong University, Beijing 100044, China.
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27
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Synthesis of Wurtzite Cu 2ZnSnS 4 Nanosheets with Exposed High-Energy (002) Facets for Fabrication of Efficient Pt-Free Solar Cell Counter Electrodes. Sci Rep 2018; 8:248. [PMID: 29321676 PMCID: PMC5762643 DOI: 10.1038/s41598-017-18631-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 12/14/2017] [Indexed: 11/08/2022] Open
Abstract
Two-dimensional (2D) semiconducting nanomaterials have generated much interest both because of fundamental scientific interest and technological applications arising from the unique properties in two dimensions. However, the colloidal synthesis of 2D quaternary chalcogenide nanomaterials remains a great challenge owing to the lack of intrinsic driving force for its anisotropic growth. 2D wurtzite Cu2ZnSnS4 nanosheets (CZTS-NS) with high-energy (002) facets have been obtained for the first time via a simple one-pot thermal decomposition method. The CZTS-NS exhibits superior photoelectrochemical activity as compared to zero-dimensional CZTS nanospheres and comparable performance to Pt counter electrode for dye sensitized solar cells. The improved catalytic activity can be attributed to additional reactive catalytic sites and higher catalytic reactivity in high-energy (002) facets of 2D CZTS-NS. This is in accordance with the density functional theory (DFT) calculations, which indicates that the (002) facets of wurtzite CZTS-NS possess higher surface energy and exhibits remarkable reducibility for I3- ions. The developed synthetic method and findings will be helpful for the design and synthesis of 2D semiconducting nanomaterials, especially eco-friendly copper chalcogenide nanocrystals for energy harvesting and photoelectric applications.
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28
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Ghosh AB, Saha N, Sarkar A, Dutta AK, Satra J, Adhikary B. Single source precursor driven phase selective synthesis of Au–CuGaS2 heteronanostructures: an observation of plasmon enhanced photocurrent efficiency. Dalton Trans 2018; 47:1071-1081. [DOI: 10.1039/c7dt04169a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Coupling of metallic Au with CuGaS2, synthesized from single molecule precursor [Ga(acda)3Cu(PPh3)2]NO3, results Au–CuGaS2 heterostructure which shows remarkably high photocurrent response compared to CuGaS2.
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Affiliation(s)
- Abhisek Brata Ghosh
- Department of Chemistry
- Indian Institute of Engineering Science and Technology
- Howrah 711 103
- India
| | - Namrata Saha
- Department of Chemistry
- Indian Institute of Engineering Science and Technology
- Howrah 711 103
- India
| | - Arpita Sarkar
- Department of Chemistry
- Indian Institute of Engineering Science and Technology
- Howrah 711 103
- India
| | - Amit Kumar Dutta
- Department of Chemistry
- Indian Institute of Engineering Science and Technology
- Howrah 711 103
- India
| | - Jit Satra
- Department of Chemistry
- Indian Institute of Engineering Science and Technology
- Howrah 711 103
- India
| | - Bibhutosh Adhikary
- Department of Chemistry
- Indian Institute of Engineering Science and Technology
- Howrah 711 103
- India
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29
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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: 327] [Impact Index Per Article: 46.7] [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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30
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Pang C, Yang R, Singh A, Chen H, Bowman MK, Bao N, Shen L, Gupta A. Colloidal synthesis and magnetic properties of anisotropic-shaped spinel CuCr2Se4 nanocrystals. RSC Adv 2017. [DOI: 10.1039/c7ra03473c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Anisotropic-shaped CuCr2Se4 nanocrystals have been synthesized by thermal decomposition and reaction of novel mixed metal–oleate complexes with selenium in a high-boiling point organic solvent, trioctylamine.
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Affiliation(s)
- Chao Pang
- State Key Laboratory of Materials-Oriented Chemical Engineering
- Nanjing Tech University
- Nanjing
- P. R. China
- Center for Materials for Information Technology (MINT)
| | - Ruiqiang Yang
- State Key Laboratory of Materials-Oriented Chemical Engineering
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Amit Singh
- Center for Materials for Information Technology (MINT)
- The University of Alabama
- Tuscaloosa
- USA
| | - Hanjiao Chen
- Department of Chemistry
- The University of Alabama
- Tuscaloosa
- USA
| | | | - Ningzhong Bao
- State Key Laboratory of Materials-Oriented Chemical Engineering
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Liming Shen
- State Key Laboratory of Materials-Oriented Chemical Engineering
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Arunava Gupta
- Center for Materials for Information Technology (MINT)
- The University of Alabama
- Tuscaloosa
- USA
- Department of Chemistry
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31
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Bose R, Bera A, Parida MR, Adhikari A, Shaheen BS, Alarousu E, Sun J, Wu T, Bakr OM, Mohammed OF. Real-Space Mapping of Surface Trap States in CIGSe Nanocrystals Using 4D Electron Microscopy. NANO LETTERS 2016; 16:4417-4423. [PMID: 27228321 DOI: 10.1021/acs.nanolett.6b01553] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Surface trap states in copper indium gallium selenide semiconductor nanocrystals (NCs), which serve as undesirable channels for nonradiative carrier recombination, remain a great challenge impeding the development of solar and optoelectronics devices based on these NCs. In order to design efficient passivation techniques to minimize these trap states, a precise knowledge about the charge carrier dynamics on the NCs surface is essential. However, selective mapping of surface traps requires capabilities beyond the reach of conventional laser spectroscopy and static electron microscopy; it can only be accessed by using a one-of-a-kind, second-generation four-dimensional scanning ultrafast electron microscope (4D S-UEM) with subpicosecond temporal and nanometer spatial resolutions. Here, we precisely map the collective surface charge carrier dynamics of copper indium gallium selenide NCs as a function of the surface trap states before and after surface passivation in real space and time using S-UEM. The time-resolved snapshots clearly demonstrate that the density of the trap states is significantly reduced after zinc sulfide (ZnS) shelling. Furthermore, the removal of trap states and elongation of carrier lifetime are confirmed by the increased photocurrent of the self-biased photodetector fabricated using the shelled NCs.
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Affiliation(s)
- Riya Bose
- Solar and Photovoltaics Engineering Research Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Ashok Bera
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Manas R Parida
- Solar and Photovoltaics Engineering Research Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Aniruddha Adhikari
- Solar and Photovoltaics Engineering Research Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Basamat S Shaheen
- Solar and Photovoltaics Engineering Research Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Erkki Alarousu
- Solar and Photovoltaics Engineering Research Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Jingya Sun
- Solar and Photovoltaics Engineering Research Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Tom Wu
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Osman M Bakr
- Solar and Photovoltaics Engineering Research Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Omar F Mohammed
- Solar and Photovoltaics Engineering Research Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
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32
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Liang Q. Phase‐Controlled Synthesis of Cu
2
SnS
3
Nanocrystals: The Effect of Redox Conditions on the Initial Binary Cu
2–
x
S Nucleation. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600447] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Qingshuang Liang
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryJilin University130012ChangchunChina
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33
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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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34
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Zhou B, Yang X, Sui Y, Xiao G, Wei Y, Zou B. Alternative motif toward high-quality wurtzite MnSe nanorods via subtle sulfur element doping. NANOSCALE 2016; 8:8784-8790. [PMID: 27064941 DOI: 10.1039/c6nr00446f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The manipulated synthesis of high-quality semiconductor nanocrystals (NCs) is of high significance with respect to the exploration of their properties and their corresponding applications. Nevertheless, the preparation of metastable-phase NCs still remains a great challenge due to their high kinetic barriers and harsh synthetic conditions. Herein, we demonstrated the fabrication of high-quality MnSe nanorods with a metastable wurtzite structure via a subtle sulfur-doping strategy. Based on the UV-vis absorption spectra, manganese polysulfide clusters were formed by mixing oleylamine-sulfur and oleylamine-manganese solutions at room temperature. The existence of manganese polysulfide clusters with polymeric sulfur structures makes the system more reactive, inducing fast wurtzite-phase nucleation. This can overcome the natural kinetic barrier of wurtzite MnSe and lead to subsequent growth of targeted NCs. On the other hand, no sulfur doping would produce MnSe NCs in a thermodynamically favorable rock-salt phase. As expected, different doping contents and sulfur sources also resulted in the formation of high-quality wurtzite MnSe nanorods. This success establishes that a facile strategy can be anticipated to synthesize high-quality metal chalcogenide NCs with a metastable phase, especially wurtzite nanorods, for potential applications from spintronics to solar cells.
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Affiliation(s)
- Bo Zhou
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China.
| | - Xinyi Yang
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China.
| | - Yongming Sui
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China.
| | - Guanjun Xiao
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China.
| | - Yingjin Wei
- Key Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics, Jilin University, Changchun, 130012, China
| | - Bo Zou
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China.
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35
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Jo DY, Yang H. Synthesis of highly white-fluorescent Cu–Ga–S quantum dots for solid-state lighting devices. Chem Commun (Camb) 2016; 52:709-12. [DOI: 10.1039/c5cc07968c] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly efficient, white-emitting Cu–Ga–S quantum dots are synthesized and applied as down-converters for white lighting device fabrication.
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Affiliation(s)
- Dae-Yeon Jo
- Department of Materials Science and Engineering
- Hongik University
- Republic of Korea
| | - Heesun Yang
- Department of Materials Science and Engineering
- Hongik University
- Republic of Korea
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36
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Ghosh A, Palchoudhury S, Thangavel R, Zhou Z, Naghibolashrafi N, Ramasamy K, Gupta A. A new family of wurtzite-phase Cu2ZnAS4−x and CuZn2AS4 (A = Al, Ga, In) nanocrystals for solar energy conversion applications. Chem Commun (Camb) 2016; 52:264-7. [DOI: 10.1039/c5cc07743e] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A new family of semiconductors Cu2ZnAS4−x and CuZn2AS4 (A = Al, Ga, In) that absorb strongly at visible wavelengths has been synthesized as nanocrystals.
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Affiliation(s)
- Anima Ghosh
- Center for Materials for Information Technology
- The University of Alabama
- Tuscaloosa
- USA
- Department of Applied Physics
| | | | | | - Ziyou Zhou
- Center for Materials for Information Technology
- The University of Alabama
- Tuscaloosa
- USA
| | | | - Karthik Ramasamy
- Center for Integrated Nanotechnologies
- Los Alamos National Laboratory
- Albuquerque
- USA
| | - Arunava Gupta
- Center for Materials for Information Technology
- The University of Alabama
- Tuscaloosa
- USA
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37
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Golobostanfard MR, Abdizadeh H. All solution processable graded CIGS solar cells fabricated using electrophoretic deposition. RSC Adv 2016. [DOI: 10.1039/c5ra26315h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Graded band gap chalcopyrite solar cells are fabricated based on an all solution processable synthesis method with the aid of electrophoretic deposition and a superstrate structure.
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Affiliation(s)
| | - Hossein Abdizadeh
- School of Metallurgy and Materials Engineering
- College of Engineering
- University of Tehran
- Tehran
- Iran
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38
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Bai T, Xing S, Li C, Shi Z, Feng S. Phase-controlled synthesis of orthorhombic and tetragonal AgGaSe2 nanocrystals with high quality. Chem Commun (Camb) 2016; 52:8581-4. [DOI: 10.1039/c6cc04358e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Orthorhombic AgGaSe2 nanocrystals with high quality have been successfully synthesized for the first time, and their crystalline phase could be tuned by adjusting the reaction conditions.
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Affiliation(s)
- Tianyu Bai
- College of Medical Laboratory
- Dalian Medical University
- Dalian 116044
- P. R. China
| | - Shanghua Xing
- Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Chunguang Li
- Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Zhan Shi
- Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Shouhua Feng
- Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
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39
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Zha C, Ji C, Zhang J, Shen L, Zhang X, Dong S, Bao N. Facet engineering of monodisperse PbS nanocrystals with shape- and facet-dependent photoresponse activity. RSC Adv 2016. [DOI: 10.1039/c6ra24119k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Monodisperse PbS nanocrystals with three different shapes for designing optoelectronic devices.
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Affiliation(s)
- Chenyang Zha
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Chemical Engineering
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Cheng Ji
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Chemical Engineering
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Junjie Zhang
- Department of Physics
- Southeast University
- Nanjing
- P. R. China
| | - Liming Shen
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Chemical Engineering
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Xiaoyan Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Chemical Engineering
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Shuai Dong
- Department of Physics
- Southeast University
- Nanjing
- P. R. China
| | - Ningzhong Bao
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Chemical Engineering
- Nanjing Tech University
- Nanjing
- P. R. China
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40
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Xiao G, Yang X, Zhang X, Wang K, Huang X, Ding Z, Ma Y, Zou G, Zou B. A Protocol to Fabricate Nanostructured New Phase: B31-Type MnS Synthesized under High Pressure. J Am Chem Soc 2015; 137:10297-303. [DOI: 10.1021/jacs.5b05629] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Guanjun Xiao
- State
Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China
| | - Xinyi Yang
- State
Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China
| | - Xinxin Zhang
- State
Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China
| | - Kai Wang
- State
Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China
| | - Xiaoli Huang
- State
Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China
| | - Zhanhui Ding
- State
Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China
| | - Yanming Ma
- State
Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China
| | - Guangtian Zou
- State
Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China
| | - Bo Zou
- State
Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China
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41
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Wu Y, Pan H, Zhou X, Li M, Zhou B, Yang C, Zhang WH, Jie J, Li C. Shape and composition control of Bi 19S 27(Br 3-x ,I x ) alloyed nanowires: the role of metal ions. Chem Sci 2015; 6:4615-4622. [PMID: 28717477 PMCID: PMC5500857 DOI: 10.1039/c5sc00708a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 05/13/2015] [Indexed: 11/21/2022] Open
Abstract
We present the first colloidal synthesis of highly uniform single-crystalline Bi19S27Br3 nanowires (NWs) with a mean diameter of ∼9 nm and tunable lengths in the range of 0.15-2 μm in the presence of foreign metal ions (Al3+). The Al3+ ions not only control the growth of NWs, but also achieve species transformation, i.e., from Bi2S3 to Bi19S27Br3, and are not present in the resulting NWs. This colloidal chemistry approach can be expanded to prepare a family of single-crystalline Bi19S27(Br3-x ,I x ) alloyed NWs with controlled compositions (0 ≤ x ≤ 3). Interestingly, these alloyed NWs show an unusual composition-independent band gap of ∼0.82 eV, and theoretical calculations indicate that this phenomenon comes from the very minor contributions of the halogens to the valence band maximum and conduction band minimum. The photodetectors made of Bi19S27(Br3-x ,I x ) alloyed NWs show a pronounced photoresponse with high stability and reproducibility, which makes the NWs potentially useful candidates in optoelectronic devices.
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Affiliation(s)
- Yihui Wu
- State Key Laboratory of Catalysis , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian National Laboratory for Clean Energy , Dalian 116023 , China . ;
| | - Huanhuan Pan
- Institute of Functional Nano & Soft Materials (FUNSOM) , Collaborative Innovation Center of Suzhou Nano Science and Technology , Soochow University , Suzhou , Jiangsu 215123 , China .
| | - Xin Zhou
- State Key Laboratory of Catalysis , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian National Laboratory for Clean Energy , Dalian 116023 , China . ;
| | - Mingrun Li
- State Key Laboratory of Catalysis , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian National Laboratory for Clean Energy , Dalian 116023 , China . ;
| | - Bin Zhou
- State Key Laboratory of Catalysis , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian National Laboratory for Clean Energy , Dalian 116023 , China . ;
| | - Chi Yang
- State Key Laboratory of Catalysis , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian National Laboratory for Clean Energy , Dalian 116023 , China . ; .,Department of Materials Science and Engineering , University of Science and Technology of China , Hefei 230026 , China
| | - Wen-Hua Zhang
- State Key Laboratory of Catalysis , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian National Laboratory for Clean Energy , Dalian 116023 , China . ;
| | - Jiansheng Jie
- Institute of Functional Nano & Soft Materials (FUNSOM) , Collaborative Innovation Center of Suzhou Nano Science and Technology , Soochow University , Suzhou , Jiangsu 215123 , China .
| | - Can Li
- State Key Laboratory of Catalysis , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian National Laboratory for Clean Energy , Dalian 116023 , China . ;
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42
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Prusty G, Guria AK, Patra BK, Pradhan N. Diffusion-Induced Shape Evolution in Multinary Semiconductor Nanostructures. J Phys Chem Lett 2015; 6:2421-2426. [PMID: 26266712 DOI: 10.1021/acs.jpclett.5b01091] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The classical mechanism of crystal growth for architecting different nanomaterials in solution, although widely studied, is mainly restricted to binary semiconductor systems. However, this method is not applicable to multinary nanomaterials, which have multivalent cations possessing different reactivity under identical reaction conditions. Hence, the shape architectures of these nanostructures, which require a more sophisticated approach, remain relatively unexplored compared to those of binary semiconductors. Owing to the importance of the multinary materials, which are emerging as excellent green materials for both light harvesting and light emission, we investigated the diffusion-rate-controlled formation of ternary AgGaSe2 nanostructures and studied their heterostructures with noble metals. Controlling the changes in the rate of diffusion of the Ag ions resulted in the formation of tadpole-shaped AgGaSe2 ternary nanostructures. In situ study by collecting a sequential collection of samples has been carried out, and the conversion of amorphous Ga-selenide to crystalline AgGaSe2 has been monitored. In addition, heterostructures of tadpole AgGaSe2 with noble metals, Au and Pt, were designed, and their photocatalytic behaviors were studied.
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Affiliation(s)
- Gyanaranjan Prusty
- Department of Materials Science and Centre for Advanced Materials, Indian Association for the Cultivation of Science, Kolkata, India 700032
| | - Amit K Guria
- Department of Materials Science and Centre for Advanced Materials, Indian Association for the Cultivation of Science, Kolkata, India 700032
| | - Biplab K Patra
- Department of Materials Science and Centre for Advanced Materials, Indian Association for the Cultivation of Science, Kolkata, India 700032
| | - Narayan Pradhan
- Department of Materials Science and Centre for Advanced Materials, Indian Association for the Cultivation of Science, Kolkata, India 700032
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43
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Ramasamy P, Kim J. Wurtzite Cu2GeS3Nanocrystals: Phase- and Shape-Controlled Colloidal Synthesis. Chem Asian J 2015; 10:1468-73. [DOI: 10.1002/asia.201500199] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Parthiban Ramasamy
- Department of Chemistry and GETRC; Kongju National University; 182, Shinkwon, Kongju 314-701 Chungnam Republic of Korea
| | - Jinkwon Kim
- Department of Chemistry and GETRC; Kongju National University; 182, Shinkwon, Kongju 314-701 Chungnam Republic of Korea
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44
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Singh A, Singh A, Ciston J, Bustillo K, Nordlund D, Milliron DJ. Synergistic Role of Dopants on the Morphology of Alloyed Copper Chalcogenide Nanocrystals. J Am Chem Soc 2015; 137:6464-7. [DOI: 10.1021/jacs.5b02880] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Ajay Singh
- McKetta
Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
- The
Molecular Foundry and §National Center for Electron Microscopy, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Amita Singh
- McKetta
Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
- The
Molecular Foundry and §National Center for Electron Microscopy, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | | | | | - Dennis Nordlund
- Stanford Synchrotron Radiation Lightsource, Stanford, California 94309, 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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45
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Yang J, Fu H, Yang D, Gao W, Cong R, Yang T. ZnGa(2-x)In(x)S4 (0 ≤ x ≤ 0.4) and Zn(1-2y)(CuGa)(y)Ga(1.7)In(0.3)S4 (0.1 ≤ y ≤ 0.2): optimize visible light photocatalytic H2 evolution by fine modulation of band structures. Inorg Chem 2015; 54:2467-73. [PMID: 25695506 DOI: 10.1021/ic503101s] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Band structure engineering is an efficient technique to develop desired semiconductor photocatalysts, which was usually carried out through isovalent or aliovalent ionic substitutions. Starting from a UV-activated catalyst ZnGa2S4, we successfully exploited good visible light photocatalysts for H2 evolution by In(3+)-to-Ga(3+) and (Cu(+)/Ga(3+))-to-Zn(2+) substitutions. First, the bandgap of ZnGa2-xInxS4 (0 ≤ x ≤ 0.4) decreased from 3.36 to 3.04 eV by lowering the conduction band position. Second, Zn1-2y(CuGa)yGa1.7In0.3S4 (y = 0.1, 0.15, 0.2) provided a further and significant red-shift of the photon absorption to ∼500 nm by raising the valence band maximum and barely losing the overpotential to water reduction. Zn0.7Cu0.15Ga1.85In0.3S4 possessed the highest H2 evolution rate under pure visible light irradiation using S(2-) and SO3(2-) as sacrificial reagents (386 μmol/h/g for the noble-metal-free sample and 629 μmol/h/g for the one loaded with 0.5 wt % Ru), while the binary hosts ZnGa2S4 and ZnIn2S4 (synthesized using the same procedure) show 0 and 27.9 μmol/h/g, respectively. The optimal apparent quantum yield reached to 7.9% at 500 nm by tuning the composition to Zn0.6Cu0.2Ga1.9In0.3S4 (loaded with 0.5 wt % Ru).
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Affiliation(s)
- Jia Yang
- College of Chemistry and Chemical Engineering, Chongqing University , 174 Shazhengjie Street, Chongqing 400044, People's Republic of China
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46
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Xie BB, Hu BB, Jiang LF, Li G, Du ZL. The phase transformation of CuInS2 from chalcopyrite to wurtzite. NANOSCALE RESEARCH LETTERS 2015; 10:86. [PMID: 25852382 PMCID: PMC4385122 DOI: 10.1186/s11671-015-0800-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Accepted: 02/04/2015] [Indexed: 06/04/2023]
Abstract
In the present work, CuInS2 nanoparticles have been successfully synthesized by water-bath method with deionized water as solvent and thioglycolic acid as complexing agent at 80°C. The phase transition of CuInS2 from chalcopyrite to wurtzite was realized by adjusting the pH value of reaction solution. The emergence of Cu2S in the condition of higher pH value of reaction solution led to the formation of wurtzite CuInS2. This facile method that controls the phase structure by adjusting the solution pH value could open a new way to synthesize other I-III-VI2 ternary semiconductor compounds.
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Affiliation(s)
- Bing-Bing Xie
- Key Laboratory for Special Functional Materials of Ministry of Education, Henan University, Kaifeng, 475004 Henan People’s Republic of China
| | - Bin-Bin Hu
- Key Laboratory for Special Functional Materials of Ministry of Education, Henan University, Kaifeng, 475004 Henan People’s Republic of China
| | - Li-Fang Jiang
- Key Laboratory for Special Functional Materials of Ministry of Education, Henan University, Kaifeng, 475004 Henan People’s Republic of China
| | - Guo Li
- Key Laboratory for Special Functional Materials of Ministry of Education, Henan University, Kaifeng, 475004 Henan People’s Republic of China
| | - Zu-Liang Du
- Key Laboratory for Special Functional Materials of Ministry of Education, Henan University, Kaifeng, 475004 Henan People’s Republic of China
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47
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Kovalenko MV, Manna L, Cabot A, Hens Z, Talapin DV, Kagan CR, Klimov VI, Rogach AL, Reiss P, Milliron DJ, Guyot-Sionnnest P, Konstantatos G, Parak WJ, Hyeon T, Korgel BA, Murray CB, Heiss W. Prospects of nanoscience with nanocrystals. ACS NANO 2015; 9:1012-57. [PMID: 25608730 DOI: 10.1021/nn506223h] [Citation(s) in RCA: 603] [Impact Index Per Article: 67.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Colloidal nanocrystals (NCs, i.e., crystalline nanoparticles) have become an important class of materials with great potential for applications ranging from medicine to electronic and optoelectronic devices. Today's strong research focus on NCs has been prompted by the tremendous progress in their synthesis. Impressively narrow size distributions of just a few percent, rational shape-engineering, compositional modulation, electronic doping, and tailored surface chemistries are now feasible for a broad range of inorganic compounds. The performance of inorganic NC-based photovoltaic and light-emitting devices has become competitive to other state-of-the-art materials. Semiconductor NCs hold unique promise for near- and mid-infrared technologies, where very few semiconductor materials are available. On a purely fundamental side, new insights into NC growth, chemical transformations, and self-organization can be gained from rapidly progressing in situ characterization and direct imaging techniques. New phenomena are constantly being discovered in the photophysics of NCs and in the electronic properties of NC solids. In this Nano Focus, we review the state of the art in research on colloidal NCs focusing on the most recent works published in the last 2 years.
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Affiliation(s)
- Maksym V Kovalenko
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich , CH-8093 Zürich, Switzerland
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48
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Vaccarello D, Hedges J, Tapley A, Love DA, Ding Z. Dynamic aspects of CuInS2 light absorbing nanocrystal thin films. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2014.10.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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49
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Wang JJ, Liu P, Ryan KM. A facile phosphine-free colloidal synthesis of Cu2SnS3 and Cu2ZnSnS4 nanorods with a controllable aspect ratio. Chem Commun (Camb) 2015; 51:13810-3. [DOI: 10.1039/c5cc04979b] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cu2SnS3 nanorods were synthesized with a controllable aspect ratio via a facile phosphine-free colloidal synthesis, which readily extended to obtain Cu2ZnSnS4 nanorods.
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Affiliation(s)
- Jian-Jun Wang
- Materials and Surface Science Institute (MSSI) and Department of Chemical and Environmental Sciences
- University of Limerick
- Limerick
- Ireland
| | - Pai Liu
- Materials and Surface Science Institute (MSSI) and Department of Chemical and Environmental Sciences
- University of Limerick
- Limerick
- Ireland
| | - Kevin M. Ryan
- Materials and Surface Science Institute (MSSI) and Department of Chemical and Environmental Sciences
- University of Limerick
- Limerick
- Ireland
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50
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Ma A, Tang Z, Shen S, Zhi L, Yang J. Controlled synthesis of ZnxCd1−xS nanorods and their composite with RGO for high-performance visible-light photocatalysis. RSC Adv 2015. [DOI: 10.1039/c5ra01846c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Zn0.5Cd0.5S nanorods with a suitable bandgap and aspect ratio displayed the highest photoresponse to visible light. Zn0.5Cd0.5S/RGO nanocomposites with line-to-line interface exhibited enhanced photocatalytic activity.
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Affiliation(s)
- Anping Ma
- School of Materials Science and Engineering
- University of Shanghai for Science and Technology
- Shanghai
- P. R. China
- School of Environment and Architecture
| | - Zhihong Tang
- School of Materials Science and Engineering
- University of Shanghai for Science and Technology
- Shanghai
- P. R. China
| | - Shuling Shen
- School of Materials Science and Engineering
- University of Shanghai for Science and Technology
- Shanghai
- P. R. China
| | - Linjie Zhi
- School of Materials Science and Engineering
- University of Shanghai for Science and Technology
- Shanghai
- P. R. China
| | - Junhe Yang
- School of Materials Science and Engineering
- University of Shanghai for Science and Technology
- Shanghai
- P. R. China
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