Stability comparison: A PCDTBT/PC71BM bulk-heterojunction versus a P3HT/PC71BM bulk-heterojunction

被引：44

作者：

Wang, Dong Hwan ^{[1
,4
,5
]}

Kim, Jung Kyu ^{[4
,5
]}

Seo, Jung Hwa ^{[2
]}

Park, O. Ok ^{[1
,3
]}

Park, Jong Hyeok ^{[4
,5
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Chem & Biomol Engn, Grad Program BK21, Taejon 305701, South Korea

[2] Dong A Univ, Coll Nat Sci, Dept Mat Phys, Pusan 604714, South Korea

[3] DGIST, Dept Energy Syst Engn, Dalseong Gun 711873, Daegu, South Korea

[4] Sungkyunkwan Univ, Sch Chem Engn, Suwon 440746, South Korea

[5] Sungkyunkwan Univ, SAINT, Suwon 440746, South Korea

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2012年 / 101卷

基金：

新加坡国家研究基金会;

关键词：

Polymer solar cells; Bulk heterojunction (BHJ); Thermal stability; Air stability; Morphological change; Degradation; POLYMER PHOTOVOLTAIC CELLS; SOLAR-CELLS; DEVICES; EFFICIENCY; NETWORK;

D O I：

10.1016/j.solmat.2012.02.005

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：

In this study, the physical and chemical degradation behaviors of active layers based on semicrystalline p-type polymer (poly(3-hexylthiophene) (P3HT)) and [6,6]-phenyl C-71 butyric acid methyl-ester (PC71BM) are compared with the corresponding behaviors of amorphous p-type polymer of poly [N-9 ''-hepta-decanyl-2,7-carbazole-alt-5,5-(4',7'-di-2-thienyl-2',1',3'-benzothiadiazole)] (PCDTBT)and PC71BM. A surface morphological study of the active layer (from Atomic force microscopy (AFM) and scanning electron microscopy (SEM) images) and a chemical analysis (from X-ray photoelectron spectroscopy (XPS) and Energy dispersive X-ray spectroscopy (EDS) results) help explain why PCDTBT/PC71BM bulk heterojunction (BHJ) has a higher level of long-term stability under thermal and air stability experimental conditions than a P3HT/PC71BM-based BHJ. The power conversion efficiency for a PCDTBT/PC71BM BHJ cell and a P3HT/PC71BM BHJ cell decreased by 11% and 21%, respectively, after a thermal stability test and by 68% and 78%, respectively, after a 300 h air stability test. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：249 / 255

页数：7

共 28 条

[1]

Atwater HA, 2010, NAT MATER, V9, P205, DOI [10.1038/nmat2629, 10.1038/NMAT2629]

[2] Toward a rational design of poly(2,7-carbazole) derivatives for solar cells [J].