Efficient polymer solar cells with polyethylene glycol cathode buffer layer and improved PEDOT:PSS conductivity

被引：11

作者：

Li, Xiong ^{[1
,2
]}

Hu, Yufeng ^{[1
]}

Deng, Zhenbo ^{[1
]}

Zhu, Lijie ^{[1
]}

Wang, Yue ^{[1
]}

Xu, Denghui ^{[2
]}

Hou, Yanbing ^{[1
]}

Teng, Feng ^{[1
]}

机构：

[1] Beijing Jiaotong Univ, Inst Optoelect Technol, Minist Educ, Key Lab Luminescence & Opt Informat, Beijing 100044, Peoples R China

[2] Beijing Technol & Business Univ, Dept Phys, Beijing 100048, Peoples R China

来源：

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2015年 / 212卷 / 08期

基金：

国家杰出青年科学基金; 中国国家自然科学基金;

关键词：

conductivity; interfaces; organic solar cells; polymers; power conversion efficiency; BULK HETEROJUNCTION; PHASE-SEPARATION; PERFORMANCE; INTERFACE; MORPHOLOGY; INTERLAYER; STABILITY; ADDITIVES;

D O I：

10.1002/pssa.201532052

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

By depositing polyethylene glycol (PEG) on the PEDOT:PSS anode buffer layer of polymer solar cells, we find that PEG not only penetrates downward into the PEDOT:PSS film and improves the conductivity of the anode buffer layer, but also migrates upward to the active layer/Al interface, and thereby forming a cathode buffer layer. The double-logarithmic plots of the net photocurrent against the effective applied voltage imply that the phase separation of the active layer formed by PEG migration is beneficial to exciton dissociation. When 4% PEG was deposited on PEDOT:PSS layer, the power conversion efficiency of polymer solar cell increases from 2.69 to 3.88%.

引用

页码：1800 / 1804

页数：5

共 32 条

[1]

[Anonymous], 2009, SOL ENERGY MAT SOL C

[2] Effect of LiF/metal electrodes on the performance of plastic solar cells [J].

Brabec, CJ ;

Shaheen, SE ;

Winder, C ;

Sariciftci, NS ;

Denk, P .

APPLIED PHYSICS LETTERS, 2002, 80 (07) :1288-1290

[3] Effect of interchain interactions on the absorption and emission of poly(3-hexylthiophene) -: art. no. 064203 [J].

Brown, PJ ;

Thomas, DS ;

Köhler, A ;

Wilson, JS ;

Kim, JS ;

Ramsdale, CM ;

Sirringhaus, H ;

Friend, RH .

PHYSICAL REVIEW B, 2003, 67 (06)

[4] Flexible polymer solar cells prepared using hard stamps for the direct transfer printing of polymer blends with self-organized interfaces [J].

Chen, Fang-Chung ;

Chuang, Ming-Kai ;

Chien, Shang-Chieh ;

Fang, Jheng-Hao ;

Chu, Chih-Wei .

JOURNAL OF MATERIALS CHEMISTRY, 2011, 21 (30) :11378-11382

[5] Nanoscale functional interlayers formed through spontaneous vertical phase separation in polymer photovoltaic devices [J].

Chen, Fang-Chung ;

Chien, Shang-Chieh .

JOURNAL OF MATERIALS CHEMISTRY, 2009, 19 (37) :6865-6869

[6] Self-Assembled Poly(ethylene glycol) Buffer Layers in Polymer Solar Cells: Toward Superior Stability and Efficiency [J].

Chien, Shang-Chieh ;

Chen, Fang-Chung ;

Chung, Ming-Kai ;

Hsu, Chain-Shu .

JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (01) :1354-1360

[7] Characterization of organic solar cells: the importance of device layout [J].

Cravino, Antonio ;

Schilinsky, Pavel ;

Brabec, Christoph J. .

ADVANCED FUNCTIONAL MATERIALS, 2007, 17 (18) :3906-3910

[8] Spontaneous interlayer formation in OPVs by additive migration due to additive-metal interactions [J].

Deckman, Igal ;

Moshonov, Moshe ;

Obuchovsky, Stas ;

Brener, Reuven ;

Frey, Gitti L. .

JOURNAL OF MATERIALS CHEMISTRY A, 2014, 2 (39) :16746-16754

[9] Thermal metal deposition induces segregation in polymer thin films: a demonstration on OPVs [J].

Dekman, Igal ;

Brener, Reuven ;

Frey, Gitti L. .

JOURNAL OF MATERIALS CHEMISTRY C, 2013, 1 (40) :6522-6525

[10] Zinc oxide films and nanomaterials for photovoltaic applications [J].

Djurisic, Aleksandra B. ;

Liu, Xiang ;

Leung, Yu Hang .

PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, 2014, 8 (02) :123-132

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