Interfacial engineering with amino-functionalized graphene for efficient perovskite solar cells

被引：79

作者：

Wen, Xiaoru ^{[1
,2
]}

Wu, Jiamin ^{[3
]}

Gao, Di ^{[3
]}

Lin, Changjian ^{[1
,2
]}

机构：

[1] Xiamen Univ, Coll Chem & Chem Engn, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China

[2] Xiamen Univ, Dept Chem, Coll Chem & Chem Engn, Xiamen 361005, Peoples R China

[3] Univ Pittsburgh, Dept Chem & Petr Engn, Pittsburgh, PA 15261 USA

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2016年 / 4卷 / 35期

基金：

中国国家自然科学基金;

关键词：

CIRCUIT PHOTOVOLTAGE DECAY; PASSIVATION; ELECTRON; OXIDE; NANOSTRUCTURES; NANOCOMPOSITE; TEMPERATURE; PERFORMANCE; LAYERS;

D O I：

10.1039/c6ta04616a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In pursuit of reducing the surface trap states of perovskite as well as enhancing the hole control of dopant-free spiro-OMeTAD, an amino-rich graphene (NGs) was introduced via a facial solution method as an interlayer at the perovskite/HTM interface. A number of characterizations, including photoluminescence and impedance spectroscopy, was conducted to reveal the interfacial effect of the NGs, and it was demonstrated that the amino group facilitated the reduced surface trap of perovskite and that graphene could behave as an efficient hole extraction and transfer pathway through the HTM network. Consequently, a maximum PCE of 14.6% could be obtained, which represented a remarkable improvement of ca. 36% over the control device (10.7%), with the improvement mainly related to the increase of J(SC) and FF.

引用

页码：13482 / 13487

页数：6

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