Wide energy-window view on the density of states and hole mobility in poly(p-phenylene vinylene) -: art. no. 166601

被引:163
作者
Hulea, IN
Brom, HB
Houtepen, AJ
Vanmaekelbergh, D
Kelly, JJ
Meulenkamp, EA
机构
[1] Leiden Univ, Kamerlingh Onnes Lab, NL-2300 RA Leiden, Netherlands
[2] Dutch Polymer Inst, NL-5600 AX Eindhoven, Netherlands
[3] Univ Utrecht, Debye Inst, NL-3508 TA Utrecht, Netherlands
[4] Philips Res Labs, NL-5656 AA Eindhoven, Netherlands
关键词
D O I
10.1103/PhysRevLett.93.166601
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Using an electrochemically gated transistor, we achieved controlled and reversible doping of poly(p-phenylene vinylene) in a large concentration range. Our data open a wide energy-window view on the density of states (DOS) and show, for the first time, that the core of the DOS function is Gaussian, while the low-energy tail has a more complex structure. The hole mobility increases by more than 4 orders of magnitude when the electrochemical potential is scanned through the DOS.
引用
收藏
页码:166601 / 1
页数:4
相关论文
共 27 条
[1]   Charge carrier mobility in doped semiconducting polymers [J].
Arkhipov, VI ;
Heremans, P ;
Emelianova, EV ;
Adriaenssens, GJ ;
Bässler, H .
APPLIED PHYSICS LETTERS, 2003, 82 (19) :3245-3247
[2]   On the description of charge carrier transport in disordered organic solids [J].
Baranovskii, SD ;
Cordes, H ;
Hensel, F ;
Yamasaki, S .
SYNTHETIC METALS, 2001, 119 (1-3) :57-60
[3]   CHARGE TRANSPORT IN DISORDERED ORGANIC PHOTOCONDUCTORS - A MONTE-CARLO SIMULATION STUDY [J].
BASSLER, H .
PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1993, 175 (01) :15-56
[4]   Atomistic structure of band-tail states in amorphous silicon [J].
Dong, JJ ;
Drabold, DA .
PHYSICAL REVIEW LETTERS, 1998, 80 (09) :1928-1931
[5]   Effect of dipoles on carrier drift and diffusion of molecularly doped polymers [J].
Hirao, A ;
Nishizawa, H .
PHYSICAL REVIEW B, 1997, 56 (06) :R2904-R2907
[6]   Effect of dye doping on the charge carrier balance in PPV light emitting diodes as measured by admittance spectroscopy [J].
Hulea, IN ;
van der Scheer, RFJ ;
Brom, HB ;
Langeveld-Voss, BMW ;
van Dijken, A ;
Brunner, K .
APPLIED PHYSICS LETTERS, 2003, 83 (06) :1246-1248
[7]   Doping-induced change of carrier mobilities in poly(3-hexylthiophene) films with different stacking structures [J].
Jiang, X ;
Harima, Y ;
Yamashita, K ;
Tada, Y ;
Ohshita, J ;
Kunai, A .
CHEMICAL PHYSICS LETTERS, 2002, 364 (5-6) :616-620
[8]   STOCHASTIC-THEORY OF INHOMOGENEOUS SPECTROSCOPIC LINE-SHAPES REINVESTIGATED [J].
KADOR, L .
JOURNAL OF CHEMICAL PHYSICS, 1991, 95 (08) :5574-5581
[9]   Electronic transport properties of conducting polymers and carbon nanotubes [J].
Kaiser, AB .
REPORTS ON PROGRESS IN PHYSICS, 2001, 64 (01) :1-49
[10]   Single-electron transistor of a single organic molecule with access to several redox states [J].
Kubatkin, S ;
Danilov, A ;
Hjort, M ;
Cornil, J ;
Brédas, JL ;
Stuhr-Hansen, N ;
Hedegård, P ;
Bjornholm, T .
NATURE, 2003, 425 (6959) :698-701