Thin silicon string ribbon for high efficiency polycrystalline solar cells

被引：6

作者：

Wallace, RL ^{[1
]}

Hanoka, JI ^{[1
]}

Narasimha, S ^{[1
]}

Kamra, S ^{[1
]}

Rohatgi, A ^{[1
]}

机构：

[1] Evergreen Solar Inc, Waltham, MA 02154 USA

来源：

CONFERENCE RECORD OF THE TWENTY SIXTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 1997 | 1997年

关键词：

D O I：

10.1109/PVSC.1997.653934

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Silicon ribbon of 100 mu m thickness has been grown using the String Ribbon crystal growth method. Flat, low stress material has been grown using both a tunable active afterheater and a simplified passive afterheater. The material is polycrystalline, with grain size as large as 2 cm across. Research sized cells (1 cm(2)) of over 15% efficiency have been made on this material. Effects of forming gas anneal, Al back contact thickness and BSF, and PECVD SiN/MgF2 vs. ZnS/MgF2 were studied as a function of efficiency. The internal quantum efficiency (IQE) of the cells shows an unusually high sensitivity to light bias. Further optimization is expected to lead to 16% cells in the near future.

引用

页码：99 / 102

页数：4