Methyl Termination and ATR-FTIR Evaluation of n-Si(111) Electrode towards Photoelectrochemical Cell Fabrication

• 作者: Toshihito Ohtake
• 来源期刊: 表面工程材料与先进技术期刊(英文)
• 学科: 化学
• 关键词: METHYL TERMINATION ATR-FTIR Semiconductor ELECTRODE Si PHOTOELECTROCHEMICAL Cell
• 年，卷（期）: bmgcclyxjjsqkyw_2013,（3）
• 页码范围: 169-171
• 页数: 3页
• 分类号: O6

摘要

We confirmed methyl termination on n-Si(111) surface by ATR-FTIR measurement, which was fabricated by a photo chloro-reaction and its methylation. The coverage of the methylation was about 63.7%, and the surface was not re-terminated by hydrogen. Photoelectrochemical properties of the n-Si(111) were measured as an electrode for a photoelectrochemical cell, and an onset potential obtaining photocurrent for the methyl terminated n-Si(111) electrode was observed as negative shift at 70 mV comparing with that of the hydrogen terminated n-Si(111) electrode. Therefore, the negative shift would be expected for improving open circuit voltage towards solar cell.