Alternative benzodithiophene (BDT) based polymeric hole transport layer for efficient perovskite solar cells

被引：39

作者：

Gaml, Eman A. ^{[1
,2
]}

Dubey, Ashish ^{[1
]}

Reza, Khan Mamun ^{[1
]}

Hasan, Md Nazmul ^{[1
]}

Adhikari, Nirmal ^{[1
]}

Elbohy, Hytham ^{[1
,2
]}

Bahrami, Behzad ^{[1
]}

Zeyada, Hamdy ^{[2
]}

Yang, Shangfeng ^{[3
]}

Qiao, Qiquan ^{[1
]}

机构：

[1] South Dakota State Univ, Ctr Adv Photovolta, Elect Engn & Comp Sci Dept, Brookings, SD 57007 USA

[2] Damietta Univ, Dept Phys, Fac Sci, Dumyat 34517, Egypt

[3] Univ Sci & Technol China, Chinese Acad Sci, Hefei Natl Lab Phys Sci Microscale,Synerget Innov, Key Lab Mat Energy Convers,Dept Mat Sci & Engn, Hefei 230026, Peoples R China

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2017年 / 168卷

基金：

美国国家科学基金会;

关键词：

Polymer PEDTT-FTTE; Doped spiroOMeTAD; Perovskite; Solar cell; TICL4; TREATMENT; TIO2; FILMS; PERFORMANCE; PHOTOVOLTAICS; TEMPERATURE; PHOTOANODES; MORPHOLOGY; STABILITY; ELECTRON; HALIDE;

D O I：

10.1016/j.solmat.2017.04.002

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Organic-inorganic perovskite cell has shown a great deal of interest in past few years due to its ability to achieve high power conversion efficiency (PCE). Use of charge transport layers such as n-type TiO2 and p-type doped spiroOMeTAD in a n-i-p device architecture has shown enhanced perovskite solar cell device performance. Use of doped spiroOMeTAD as hole transport layer in the n-i-p device structure has been effective but possess disadvantages such as complex processing, use of corrosive additives, processing in ambient air for efficient hole doping. Here we report the study of solution processed benzodithiophene based polymer PBDTT-FTTE as an alternative hole transport layer to doped small molecule spiroOMeTAD. PBDT-FTTE doped with 3% DIO (diiodooctane) achieved PCE of 11.6% which was comparable to matching PCE of 11.6% obtained from using spiroOMeTAD as hole transport layer. We showed that unlike spiroOMeTAD, polymer PBDIT-FTTE is processed inside NZ filled glove box and is easier to process as compared to spiroOMeTAD which requires processing in ambient humid air and is doped with additives mixed in corrosive solvent, causing degradation to perovskite layer underneath.

引用

页码：8 / 13

页数：6

共 38 条

[1] Molecular Design and Ordering Effects in π-Functional Materials for Transistor and Solar Cell Applications [J].