Journal article
Ambipolar organic phototransistor
Publication Details
Authors: | Saragi, T.; Onken, K.; Suske, I.; Fuhrmann-Lieker, T.; Salbeck, J. |
Publication year: | 2007 |
Journal: | Optical Materials |
Pages range : | 1332-1337 |
Volume number: | 29 |
ISSN: | 0925-3467 |
Abstract
We report on the fabrication and characterization of ambipolar organic phototransistors based on amorphous thin films of donor/acceptor dyad N-[7-(N,N-diphenylamino)-9,90-spirobifluoren-2-yl]-N0-(2,5-di-tert-butylphenyl)-3,4:9,10-perylenetetracarboxylicdiimide.The mechanism of light enhanced photocurrent is based on photoinduced charge transfer between the donor and the acceptor unit.The photoresponsivity of up to 0.2 A/W can be obtained. The drain current is significantly increased by a factor of nearly 100 as thelight is used as an additional control parameter, making the device interesting for sensor applications.
We report on the fabrication and characterization of ambipolar organic phototransistors based on amorphous thin films of donor/acceptor dyad N-[7-(N,N-diphenylamino)-9,90-spirobifluoren-2-yl]-N0-(2,5-di-tert-butylphenyl)-3,4:9,10-perylenetetracarboxylicdiimide.The mechanism of light enhanced photocurrent is based on photoinduced charge transfer between the donor and the acceptor unit.The photoresponsivity of up to 0.2 A/W can be obtained. The drain current is significantly increased by a factor of nearly 100 as thelight is used as an additional control parameter, making the device interesting for sensor applications.
