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: | 1-四月-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 |
顯示於類別: | 期刊論文 |