A dopant-free hole-transporting material for efficient and stable perovskite solar cells

被引：674

作者：

Liu, Jian ^{[1
]}

Wu, Yongzhen ^{[1
]}

Qin, Chuanjiang ^{[1
]}

Yang, Xudong ^{[1
]}

Yasuda, Takeshi ^{[1
]}

Islam, Ashraful ^{[1
]}

Zhang, Kun ^{[1
]}

Peng, Wenqin ^{[1
]}

Chen, Wei ^{[1
]}

Han, Liyuan ^{[1
,2
]}

机构：

[1] Natl Inst Mat Sci, Photovolta Mat Unit, Tsukuba, Ibaraki 3050047, Japan

[2] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2014年 / 7卷 / 09期

基金：

日本科学技术振兴机构;

关键词：

ORGANIC SEMICONDUCTORS; CHARGE-TRANSPORT; ELECTRON-DONORS; MOBILITY; LENGTHS;

D O I：

10.1039/c4ee01589d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An efficient pristine hole-transporting material (HTM), tetrathiafulvalene derivative (TTF-1), was introduced into perovskite solar cells, without the use of p-type dopants. As compared to cells based on well-known p-type doping with spiro-OMeTAD, perovskite solar cells based on dopant-free TTF-1 performed with a comparable efficiency of 11.03%; moreover, the stability of the dopant-free TTF-1 based cell was greatly improved two fold in air at a relative humidity of similar to 40%. To the best of our knowledge, this is the first case of perovskite solar cells employing a dopant-free HTM based on a tetrathiafulvalene derivative yielding an efficiency over 11%. The present finding paves the way for the development of efficient dopant-free HTMs for perovskite solar cells, which promotes the advancement of cost-effective and practical perovskite solar cells.

引用

页码：2963 / 2967

页数：5

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