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Ashok A, Vasanth A, Nagaura T, Setter C, Clegg JK, Fink A, Masud MK, Hossain MS, Hamada T, Eguchi M, Phan HP, Yamauchi Y. Mesoporous Metastable CuTe 2 Semiconductor. J Am Chem Soc 2023; 145:23461-23469. [PMID: 37851534 DOI: 10.1021/jacs.3c05846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
Binary metastable semiconductor materials offer exciting possibilities in the field of optoelectronics, such as photovoltaics, tunable photosensors, and detectors. However, understanding their properties and translating them into practical applications can sometimes be challenging, owing to their thermodynamic instability. Herein, we report a temperature-controlled crystallization technique involving electrochemical deposition to produce metastable CuTe2 thin films that can reliably function under ambient conditions. A series of in situ heating/cooling cycle tests from room temperature to 200 °C followed by spectral, morphological, and compound analyses (such as ultraviolet-visible light spectroscopy, X-ray diffraction (XRD) analysis, and X-ray photoelectron spectroscopy (XPS)) suggest that the seeding electrodes play a key role in the realization of the metastable phase in CuTe2 films. In particular, CuTe2 films deposited on Al electrodes exhibit superior crystallinity and long-term stability compared with those grown on a Au substrate. The XRD data of thermally annealed CuTe2 thin films deposited on Al show a markedly sharp peak, indicating significantly increased crystal-domain sizes. Our method can be used to achieve the metastable phase of CuTe2 with a bandgap of 1.67 eV and offers outstanding photoresponsivity under different illumination conditions.
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Affiliation(s)
- Aditya Ashok
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Arya Vasanth
- Amrita Center for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, Kerala 682041, India
| | - Tomota Nagaura
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Caitlin Setter
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Jack Kay Clegg
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Alexander Fink
- Centre for Microscopy and Microanalysis, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Mostafa Kamal Masud
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Md Shahriar Hossain
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
- School of Mechanical and Mining Engineering, Faculty of Engineering, Architecture, and Information Technology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Takashi Hamada
- Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
| | - Miharu Eguchi
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
- Faculty of Science and Engineering, Waseda University, Shinjuku, Tokyo 169-8555, Japan
| | - Hoang-Phuong Phan
- School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Yusuke Yamauchi
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
- Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
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Gao C, Li S, Li Q, Shi P, Shah SA, Zhang W. Dispersion RAFT polymerization: comparison between the monofunctional and bifunctional macromolecular RAFT agents. Polym Chem 2014. [DOI: 10.1039/c4py01069h] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The dispersion RAFT polymerizations mediated with monofunctional and bifunctional macro-RAFT agents were comparatively studied, in which different block copolymer morphologies were detected.
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Affiliation(s)
- Chengqiang Gao
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071, China
| | - Shentong Li
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071, China
| | - Quanlong Li
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071, China
| | - Pengfei Shi
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071, China
| | - Sayyar Ali Shah
- Department of Chemistry
- Tianjin University
- Tianjin 300072, China
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071, China
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Huang B, Fan X, Wang G, Zhang Y, Huang J. Synthesis of twin-tail tadpole-shaped (cyclic polystyrene)- block-[linear poly (tert-butyl acrylate)]2 by combination of glaser coupling reaction with living anionic polymerization and atom transfer radical polymerization. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26021] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Sun R, Wang G, Liu C, Huang J. Preparation of comb‐like copolymers with amphiphilic poly(ethylene oxide)‐
b
‐polystyrene graft chains by combination of “graft from” and “graft onto” strategies. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/pola.23302] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ruiming Sun
- The Key Laboratory of Molecular Engineering of Polymer, State Education Ministry of China, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Guowei Wang
- The Key Laboratory of Molecular Engineering of Polymer, State Education Ministry of China, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Chao Liu
- The Key Laboratory of Molecular Engineering of Polymer, State Education Ministry of China, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Junlian Huang
- The Key Laboratory of Molecular Engineering of Polymer, State Education Ministry of China, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
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Zhang Y, Lin W, Jing R, Huang J. Effect of Block Sequence on the Self-Assembly of ABC Terpolymers in Selective Solvent. J Phys Chem B 2008. [DOI: 10.1021/jp8053444] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yi Zhang
- The Key Laboratory of Molecular Engineering of Polymer, State Education Ministry of China, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Wencheng Lin
- The Key Laboratory of Molecular Engineering of Polymer, State Education Ministry of China, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Rongkuan Jing
- The Key Laboratory of Molecular Engineering of Polymer, State Education Ministry of China, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Junlian Huang
- The Key Laboratory of Molecular Engineering of Polymer, State Education Ministry of China, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
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