Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 113, Issue 43, Pages 18870-18873Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp906102r
Keywords
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Funding
- National Research Foundation of Korea (NRF)
- government of Korea [R01-2007-000-20508-0]
- NRF through EPB Center [R11-2008-052-03003]
- KU Brain Pool Program of Konkuk University, Korea
- National Research Foundation of Korea [R01-2007-000-20508-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We report the fabrication of a photoresponsive organic field-effect transistor (OFET) based on a stable, n-type organic semiconductor (F16CuPc) and low-temperature processable polymer gate dielectric. The device exhibited a photoswitching speed of much less than 10 ms and a photosensitivity of 1.5 mA/W at low optical power. Under illumination, the device produced a current gain (I-light/I-dark) of 22 at V-G = 4 V. The drain current increased gradually with an increase in the illumination intensity, resulting in typical output FET characteristics. The multifunctions (photodetection, photoswitching, signal amplification) achieved by the single device can ensure very promising material for future optoelectronic applications.
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