2016年第63回応用物理学会春季学術講演会

講演情報

一般セッション(口頭講演)

16 非晶質・微結晶 » 16.3 シリコン系太陽電池

[20p-S611-1~17] 16.3 シリコン系太陽電池

2016年3月20日(日) 13:30 〜 18:00 S611 (南6号館)

新船 幸二(兵庫県立大)、松本 健俊(阪大)

16:15 〜 16:30

[20p-S611-11] Effect and Optimization of Chemical Cleaning before Deposition of Cat-CVD Passivation Films to Realize Extremely Low Surface Recombination Velocity on Flat and Textured Structures

〇(PC)Nguyen Cong Thanh1、Koyama Koichi1、Terashima Shigeki1、Okamoto Chikao2、Sugiyama Shuichiro2、Ohdaira Keisuke1、Matsumura Hideki1 (1.JAIST (Japan Adv. Inst. Sci. & Tech.)、2.SHARP Corporation)

キーワード:surface passivation,surface cleaning,solar cell

We succeeded to obtain Cat-CVD SiN$ _x $/i-a-Si passivation which realizes carrier life time up to 11.2~ms on flat c-Si substrates with bulk carrier life times around 11.5 ms, and about 8~ms on 170~\textmu m-thick textured c-Si used for solar cells. This means that the maximum surface recombination velocity as low as 1.1~cm/s, evaluated under the assumption of no carrier recombination in bulk, is successfully obtained for textured c-Si by proper chemical cleaning and film deposition by Cat-CVD.