Effects of long-term heat-light soaking on Cu(In,Ga)Se2 solar cells with KF postdeposition treatment
Effects of long-term heat-light soaking on Cu(In,Ga)Se2 solar cells with KF postdeposition treatment
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长期热光浸泡对KF沉积后处理的Cu(In,Ga)Se2太阳能电池的影响
DOI：
10.7567/apex.10.092301
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发表时间：
2017
影响因子：
2.3
通讯作者：
S. Niki
中科院分区：
文献类型：
--
作者：
J. Nishinaga;T. Koida;S. Ishizuka;Y. Kamikawa;Hideki Takahashi;M. Iioka;H. Higuchi;Y. Ueno;H. Shibata;S. Niki
研究了长期热光浸泡对KF后沉积处理的CIGS铜(In，Ga)Se2(CIGS)太阳电池的影响。具有KF-PDT的CIGS太阳能电池在黑暗中储存后，由于CIGS层中空穴浓度的下降，经常会恶化。尽管光浸泡提高了空穴浓度，但由此带来的转换效率的提高并不显著。相反，我们发现长时间的热光浸泡有效地提高了转换效率，因为钝化CDS/CIGS界面的复合中心可以明显提高饱和电流密度和理想因子。
The effects of long-term heat-light soaking on Cu(In,Ga)Se2 (CIGS) solar cells with KF postdeposition treatment (KF-PDT) have been investigated. CIGS solar cells with KF-PDT frequently deteriorate after storage in the dark because of decreasing hole concentrations in the CIGS layers. Although light soaking improves hole concentrations, the resulting increase in conversion efficiency is not significant. In contrast, we found that long-term heat-light soaking effectively increases conversion efficiency, since the saturation current density and ideality factor are clearly improved by passivating the recombination centers at CdS/CIGS interfaces.