Exciton diffusion measurements in poly(3-hexylthiophene)

被引:758
作者
Shaw, Paul E. [1 ]
Ruseckas, Arvydas [1 ]
Samuel, Ifor D. W. [1 ]
机构
[1] Univ St Andrews, Sch Phys & Astron, SUPA, Organ Semicond Ctr, St Andrews KY16 9SS, Fife, Scotland
基金
英国工程与自然科学研究理事会;
关键词
D O I
10.1002/adma.200800982
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The problem of making reliable measurements of exciton diffusion lengths in organic semiconductors is addressed. The exciton diffusion length is an extremely important quantity in the operation of organic solar cells. We focus on the polymer P3HT because of its widespread use in solar cells and are able to fit the exciton diffusion in a range of films with a single diffusion constant, showing that our approach is particularly robust.
引用
收藏
页码:3516 / +
页数:6
相关论文
共 31 条
[1]   Ultrafast and long-lived photoinduced charge separation in MEH-PPV/nanoporous semiconductor thin film composites [J].
Anderson, NA ;
Hao, EC ;
Ai, X ;
Hastings, G ;
Lian, TQ .
CHEMICAL PHYSICS LETTERS, 2001, 347 (4-6) :304-310
[2]   Discrete hopping model of exciton transport in disordered media [J].
Burlakov, VM ;
Kawata, K ;
Assender, HE ;
Briggs, GAD ;
Ruseckas, A ;
Samuel, IDW .
PHYSICAL REVIEW B, 2005, 72 (07)
[3]   Electrodeless time-resolved microwave conductivity study of charge-carrier photogeneration in regioregular poly(3-hexylthiophene) thin films [J].
Dicker, G ;
de Haas, MP ;
Siebbeles, LDA ;
Warman, JM .
PHYSICAL REVIEW B, 2004, 70 (04) :045203-1
[4]   Effects of molecular interface modification in hybrid organic-inorganic photovoltaic cells [J].
Goh, Chiatzun ;
Scully, Shawn R. ;
McGehee, Michael D. .
JOURNAL OF APPLIED PHYSICS, 2007, 101 (11)
[5]   Long-range singlet energy transfer in perylene bis(phenethylimide) films [J].
Gregg, BA ;
Sprague, J ;
Peterson, MW .
JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (27) :5362-5369
[6]   Excited state dynamics of phthalocyanine films [J].
Gulbinas, V ;
Chachisvilis, M ;
Valkunas, L ;
Sundstrom, V .
JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (06) :2213-2219
[7]   Resolving the radical cation formation from the lowest-excited singlet (S1) state of terthiophene in a TiO2-SiO2 hybrid polymer matrix [J].
Helbig, M ;
Ruseckas, A ;
Grage, MML ;
Birckner, E ;
Rentsch, S ;
Sundström, V .
CHEMICAL PHYSICS LETTERS, 1999, 302 (5-6) :587-594
[8]   A strong regioregularity effect in self-organizing conjugated polymer films and high-efficiency polythiophene: fullerene solar cells [J].
Kim, Y ;
Cook, S ;
Tuladhar, SM ;
Choulis, SA ;
Nelson, J ;
Durrant, JR ;
Bradley, DDC ;
Giles, M ;
Mcculloch, I ;
Ha, CS ;
Ree, M .
NATURE MATERIALS, 2006, 5 (03) :197-203
[9]   Contactless determination of the photoconductivity action spectrum, exciton diffusion length, and charge separation efficiency in polythiophene-sensitized TiO2 bilayers [J].
Kroeze, JE ;
Savenije, TJ ;
Vermeulen, MJW ;
Warman, JM .
JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (31) :7696-7705
[10]   Singlet exciton diffusion in MEH-PPV films studied by exciton-exciton annihilation [J].
Lewis, A. J. ;
Ruseckas, A. ;
Gaudin, O. P. M. ;
Webster, G. R. ;
Burn, P. L. ;
Samuel, I. D. W. .
ORGANIC ELECTRONICS, 2006, 7 (06) :452-456