Low band gap liquid-processed CZTSe solar cell with 10.1% efficiency

被引：298

作者：

Bag, Santanu ^{[1
]}

Gunawan, Oki ^{[1
]}

Gokmen, Tayfun ^{[1
]}

Zhu, Yu ^{[1
]}

Todorov, Teodor K. ^{[1
]}

Mitzi, David B. ^{[1
]}

机构：

[1] IBM Corp, TJ Watson Res Ctr, Yorktown Hts, NY 10598 USA

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2012年 / 5卷 / 05期

关键词：

MATERIALS AVAILABILITY;

D O I：

10.1039/c2ee00056c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A low band gap liquid-processed Cu2ZnSn(Se1-xSx)(4) (CZTSSe) kesterite solar cell with x approximate to 0.03 is prepared from earth abundant metals, yielding 10.1% power conversion efficiency. This champion cell shows a band gap of 1.04 eV, higher minority-carrier lifetime, lower series resistance and lower Voc deficit compared to our previously reported higher band gap (E-g = 1.15 eV; x approximate to 0.4) cell with similar record efficiency. The ability to vary the CZTSSe band gap using sulfur content (i.e., varying x) facilitates the examination of factors limiting performance in the current generation of CZTSSe devices, as part of the thrust to achieve operational parity with CdTe and Cu(In,Ga)(S,Se)(2) (CIGSSe) analogs.

引用

页码：7060 / 7065

页数：6

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