Polymer/Polymer Blend Solar Cells with 2.0% Efficiency Developed by Thermal Purification of Nanoscale-Phase-Separated Morphology

被引：92
作者：
Mori, Daisuke [1 ]
Benten, Hiroaki [1 ]
Kosaka, Junya [1 ]
Ohkita, Hideo [1 ,2 ]
Ito, Shinzaburo [1 ]
Miyake, Kunihito [3 ]
机构：
[1] Kyoto Univ, Grad Sch Engn, Dept Polymer Chem, Nishikyo Ku, Kyoto 6158510, Japan
[2] Japan Sci & Technol Agcy JST, PRESTO, Kawaguchi, Saitama 3320012, Japan
[3] Sumitomo Chem Co Ltd, Tsukuba Res Lab, Tsukuba, Ibaraki 3003294, Japan
来源：
ACS APPLIED MATERIALS & INTERFACES | 2011年 / 3卷 / 08期
关键词：
polymer photovoltaics; conjugated polymer blends; phase separation; morphology; poly(3-hexylthiophene); fluorene-based copolymer; CONJUGATED-POLYMER BLENDS; PHOTOVOLTAIC PERFORMANCE; POLYFLUORENE BLENDS; CHARGE GENERATION; EVOLUTION; DEVICES;
D O I：
10.1021/am200624s
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We have fabricated polymer/polymer blend solar cells consisting of poly-(3-hexylthiophene) as the electron donor and poly{2,7-(9,9-didodecylfluorene)-alt-5,5-[4',7'-bis(2-thienyl)-2',1',3'-benzothiadiazole]} as the acceptor. The power conversion efficiency (PCE) was strongly dependent on solvents employed for spin coating. The best PCE of 2.0% was obtained for thermally annealed devices prepared from a chloroform solution, in contrast to devices fabricated from chlorobenzene and o-dichlorobenzene solutions. On the basis of the morphology-performance relationship in the polymer blends examined by atomic force microscopy and the photoluminescence quenching measurements, we conclude that the highly efficient performance is achieved by thermal purification of nanoscale-phase-separated domains formed by spin coating from chloroform.
引用
收藏
页码：2924 / 2927
页数：4
相关论文
共 19 条
  • [1] Photovoltaic performance and morphology of polyfluorene blends: A combined microscopic and photovoltaic investigation
    Arias, AC
    MacKenzie, JD
    Stevenson, R
    Halls, JJM
    Inbasekaran, M
    Woo, EP
    Richards, D
    Friend, RH
    [J]. MACROMOLECULES, 2001, 34 (17) : 6005 - 6013
  • [2] Polymer-Fullerene Bulk-Heterojunction Solar Cells
    Dennler, Gilles
    Scharber, Markus C.
    Brabec, Christoph J.
    [J]. ADVANCED MATERIALS, 2009, 21 (13) : 1323 - 1338
  • [3] Formation of Nanopatterned Polymer Blends in Photovoltaic Devices
    He, Ximin
    Gao, Feng
    Tu, Guoli
    Hasko, David
    Huettner, Sven
    Steiner, Ullrich
    Greenham, Neil C.
    Friend, Richard H.
    Huck, Wilhelm T. S.
    [J]. NANO LETTERS, 2010, 10 (04) : 1302 - 1307
  • [4] Upscaling of polymer solar cell fabrication using full roll-to-roll processing
    Krebs, Frederik C.
    Tromholt, Thomas
    Jorgensen, Mikkel
    [J]. NANOSCALE, 2010, 2 (06) : 873 - 886
  • [5] Tailoring side chains of low band gap polymers for high efficiency polymer solar cells
    Li, Weiwei
    Qin, Ruiping
    Zhou, Yi
    Andersson, Mattias
    Li, Fenghong
    Zhang, Chi
    Li, Binsong
    Liu, Zhengping
    Bo, Zhishan
    Zhang, Fengling
    [J]. POLYMER, 2010, 51 (14) : 3031 - 3038
  • [6] Accurate measurement of the exciton diffusion length in a conjugated polymer using a heterostructure with a side-chain cross-linked fullerene layer
    Markov, DE
    Amsterdam, E
    Blom, PWM
    Sieval, AB
    Hummelen, JC
    [J]. JOURNAL OF PHYSICAL CHEMISTRY A, 2005, 109 (24) : 5266 - 5274
  • [7] Influence of nanoscale phase separation on the charge generation dynamics and photovoltaic performance of conjugated polymer blends: Balancing charge generation and separation
    McNeill, Christopher R.
    Westenhoff, Sebastian
    Groves, Chris
    Friend, Richard H.
    Greenham, Neil C.
    [J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (51) : 19153 - 19160
  • [8] Dual electron donor/electron acceptor character of a conjugated polymer in efficient photovoltaic diodes
    McNeill, Christopher R.
    Abrusci, Agnese
    Zaumseil, Jana
    Wilson, Richard
    McKiernan, Mary J.
    Burroughes, Jeremy H.
    Halls, Jonathan J. M.
    Greenham, Neil C.
    Friend, Richard H.
    [J]. APPLIED PHYSICS LETTERS, 2007, 90 (19)
  • [9] Conjugated-Polymer Blends for Optoelectronics
    McNeill, Christopher R.
    Greenham, Neil C.
    [J]. ADVANCED MATERIALS, 2009, 21 (38-39) : 3840 - 3850
  • [10] Photophysics and Photocurrent Generation in Polythiophene/Polyfluorene Copolymer Blends
    McNeill, Christopher R.
    Abrusci, Agnese
    Hwang, Inchan
    Ruderer, Matthias A.
    Mueller-Buschbaum, Peter
    Greenham, Neil C.
    [J]. ADVANCED FUNCTIONAL MATERIALS, 2009, 19 (19) : 3103 - 3111
12