標題: Breakthrough to Non-Vacuum Deposition of Single-Crystal, Ultra-Thin, Homogeneous Nanoparticle Layers: A Better Alternative to Chemical Bath Deposition and Atomic Layer Deposition
作者: Liao, Yu-Kuang
Liu, Yung-Tsung
Hsieh, Dan-Hua
Shen, Tien-Lin
Hsieh, Ming-Yang
Tzou, An-Jye
Chen, Shih-Chen
Tsai, Yu-Lin
Lin, Wei-Sheng
Chan, Sheng-Wen
Shen, Yen-Ping
Cheng, Shun-Jen
Chen, Chyong-Hua
Wu, Kaung-Hsiung
Chen, Hao-Ming
Kuo, Shou-Yi
Charlton, Martin D. B.
Hsieh, Tung-Po
Kuo, Hao-Chung
電子物理學系
光電工程學系
光電工程研究所
Department of Electrophysics
Department of Photonics
Institute of EO Enginerring
關鍵字: nanoparticles;thin-film deposition;chemical bath deposition;thermolysis;atomic layer deposition
公開日期: 1-Apr-2017
摘要: Most thin-film techniques require a multiple vacuum process, and cannot produce high-coverage continuous thin filmswith the thickness of a fewnanometers on rough surfaces. We present a new "paradigm shift" non-vacuum process to deposit high-quality, ultra-thin, single-crystal layers of coalesced sulfide nanoparticles (NPs) with controllable thickness down to a few nanometers, based on thermal decomposition. This provides high-coverage, homogeneous thickness, and large-area deposition over a rough surface, with little material loss or liquid chemical waste, and deposition rates of 10 nm/min. This technique can potentially replace conventional thin-film deposition methods, such as atomic layer deposition (ALD) and chemical bath deposition (CBD) as used by the Cu(In, Ga) Se2 (CIGS) thin-film solar cell industry for decades. We demonstrate 32% improvement of CIGS thin-film solar cell efficiency in comparison to reference devices prepared by conventional CBD deposition method by depositing the ZnS NPs buffer layer using the new process. The new ZnS NPs layer allows reduction of an intrinsic ZnO layer, which can lead to severe shunt leakage in case of a CBD buffer layer. This leads to a 65% relative efficiency increase.
URI: http://dx.doi.org/10.3390/nano7040078
http://hdl.handle.net/11536/145684
ISSN: 2079-4991
DOI: 10.3390/nano7040078
期刊: NANOMATERIALS
Volume: 7
Issue: 4
起始頁: 0
結束頁: 0
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