Time-of-flight measurements in Langmuir-Blodgett films of poly(3-hexylthiophene)

被引:0
|
作者
Osterbacka, R [1 ]
Juska, G [1 ]
Arlauskas, K [1 ]
Stubb, H [1 ]
机构
[1] Abo Akad Univ, Dept Phys, FIN-20500 Turku, Finland
来源
关键词
Langmuir-Blodgett films; poly(3-hexylthiophene); time-of-flight; transit time; mobility; space-charge limited current;
D O I
暂无
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Time-of-Flight (TOF) measurements in the voltage mode in thin films of poly(3-hexylthiophene) (PHT) have been studied. Thin films of PHT were fabricated using Langmuir-Blodgett (LB) technique giving unique possibility of controlling the thickness of sandwich type samples. We have used a method developed for the study of subnanosecond transients in thin films of amorphous semiconductors [G. Juska, G. Jukonis and J. Kocka, "Study of a-Si:H drift mobility in subnanosecond time scale", J Non-Cryst. Sol., 114, pp. 354-356 (1989)]. The TOF signals have been measured in LB films for the first time, and a hole mobility of the order of 8x10(-3) cm(2)/Vs in PHT LB films has been estimated.
引用
收藏
页码:389 / 394
页数:6
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