Molecular Doping Enhances Photoconductivity in Polymer Bulk Heterojunction Solar Cells

被引:178
作者
Zhang, Yuan [1 ]
Zhou, Huiqiong [2 ]
Seifter, Jason [2 ]
Ying, Lei [1 ]
Mikhailovsky, Alexander [1 ]
Heeger, Alan J. [2 ]
Bazan, Guillermo C. [1 ]
Nguyen, Thuc-Quyen [1 ]
机构
[1] Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA
[2] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA
关键词
molecular doping; F4-TCNQ; photocurrent; charge carrier density; charge recombination; PHOTOVOLTAIC CELLS; CONJUGATED POLYMER; CHARGE-TRANSPORT; PHASE-SEPARATION; BAND-GAP; EFFICIENCY; FILMS; MORPHOLOGY; PHOTOCURRENT; PERFORMANCE;
D O I
10.1002/adma.201302159
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Addition of low concentrations (<1:100, dopant:donor) of a fluorinated p-type dopant, F4-TCNQ leads to a considerable enhancement of the photocurrent in PCDTBT:PC70BM bulk heterojunction solar cells. As a result, the power conversion efficiency increases from 6.41% to 7.94 %. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:7038 / 7044
页数:7
相关论文
共 51 条
[1]   Exciton Formation, Relaxation, and Decay in PCDTBT [J].
Banerji, Natalie ;
Cowan, Sarah ;
Leclerc, Mario ;
Vauthey, Eric ;
Heeger, Alan J. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (49) :17459-17470
[2]   Device physics of polymer:fullerene bulk heterojunction solar cells [J].
Blom, Paul W. M. ;
Mihailetchi, Valentin D. ;
Koster, L. Jan Anton ;
Markov, Denis E. .
ADVANCED MATERIALS, 2007, 19 (12) :1551-1566
[3]   Toward a rational design of poly(2,7-carbazole) derivatives for solar cells [J].
Blouin, Nicolas ;
Michaud, Alexandre ;
Gendron, David ;
Wakim, Salem ;
Blair, Emily ;
Neagu-Plesu, Rodica ;
Belletete, Michel ;
Durocher, Gilles ;
Tao, Ye ;
Leclerc, Mario .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (02) :732-742
[4]   Charge Photogeneration in Organic Solar Cells [J].
Clarke, Tracey M. ;
Durrant, James R. .
CHEMICAL REVIEWS, 2010, 110 (11) :6736-6767
[5]   7,7,8,8-Tetracyanoquinodimethane-Based Molecular Dopants for p-Type Doping of OLEDs: A Theoretical Investigation [J].
Cosimbescu, Lelia ;
Padmaperuma, Asanga B. ;
Gaspar, Daniel J. .
JOURNAL OF PHYSICAL CHEMISTRY A, 2011, 115 (46) :13498-13503
[6]   Recombination in polymer-fullerene bulk heterojunction solar cells [J].
Cowan, Sarah R. ;
Roy, Anshuman ;
Heeger, Alan J. .
PHYSICAL REVIEW B, 2010, 82 (24)
[7]   Reduced Charge Transfer Exciton Recombination in Organic Semiconductor Heterojunctions by Molecular Doping [J].
Deschler, Felix ;
Da Como, Enrico ;
Limmer, Thomas ;
Tautz, Raphael ;
Godde, Tillmann ;
Bayer, Manfred ;
von Hauff, Elizabeth ;
Yilmaz, Seyfullah ;
Allard, Sybille ;
Scherf, Ullrich ;
Feldmann, Jochen .
PHYSICAL REVIEW LETTERS, 2011, 107 (12)
[8]   MIP-type organic solar cells incorporating phthalocyanine/fullerene mixed layers and doped wide-gap transport layers [J].
Drechsel, J ;
Männig, B ;
Gebeyehu, D ;
Pfeiffer, M ;
Leo, K ;
Hoppe, H .
ORGANIC ELECTRONICS, 2004, 5 (04) :175-186
[9]   Controlled p-doping of zinc phthalocyanine by coevaporation with tetrafluorotetracyanoquinodimethane:: A direct and inverse photoemission study [J].
Gao, WY ;
Kahn, A .
APPLIED PHYSICS LETTERS, 2001, 79 (24) :4040-4042
[10]  
Grancini G, 2013, NAT MATER, V12, P29, DOI [10.1038/nmat3502, 10.1038/NMAT3502]