Na-Diffusion Enhanced p-type Conductivity in Cu(In,Ga)Se2: A New Mechanism for Efficient Doping in Semiconductors
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- 作者：Zhen-Kun Yuan ; Shiyou Chen ; Yun Xie ; Ji-Sang Park ; Hongjun Xiang ; Xin-Gao Gong and Su-Huai Wei
- 刊名：Advanced Energy Materials
- 出版年：2016
- 出版时间：December 21, 2016
- 年：2016
- 卷：6
- 期：24
- 全文大小：927K
- ISSN：1614-6840
文摘
A new mechanism responsible for the hole concentration increase in the CIGS thin films after Na doping is proposed. At high temperature, a high concentration of Na is doped into the grains. After cooling and water rinsing, the solubility of Na becomes lower, so Na diffuses out of the grains with high concentration of Cu vacancies and hole carriers formed.