A non-selenization technology by co-sputtering deposition for solar cell applications

Bao Tang Jheng, Po-Tsun Liu*, Meng Chyi Wu, Han Ping D. Shieh

*Corresponding author for this work

研究成果: Article同行評審

15 引文 斯高帕斯(Scopus)

摘要

This work presents a novel method to form polycrystalline Cu(In 1-xGax)Se2 (CIGS) thin film by co-sputtering of In-Se and Cu-Ga alloy targets without an additional selenization process. An attempt was also made to thoroughly elucidate the surface morphology, crystalline phases, physical properties, and chemical properties of the CIGS films by using material analysis methods. Experimental results indicate that CIGS thin films featured densely packed grains and chalcopyrite phase peaks of (112), (220), (204), (312), and (116). Raman spectroscopy analysis revealed chalcopyrite CIGS phase with Raman shift at 175 cm-1, while no signal at 258 cm-1 indicated the exclusion of Cu2-xSe phase. Hall effect measurements confirmed the polycrystalline Cu(In; Ga)Se2 thin film to be of p type semiconductor with a film resistivity and mobility of 2.19 × 102 O cm and 88 cm2/V s, respectively.

原文English
頁(從 - 到)2760-2762
頁數3
期刊Optics Letters
37
發行號13
DOIs
出版狀態Published - 1 七月 2012

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