WANG Wei, MA Dong-ge, GAO Qiang, SHI Jia-wei, CAO Jun-sheng. Memory and Photo-responses Characteristics of Organic Thin Film Transistors Based on Multi-layer Gate Dielectric[J]. Chinese Journal of Luminescence, 2011,32(7): 729-735
WANG Wei, MA Dong-ge, GAO Qiang, SHI Jia-wei, CAO Jun-sheng. Memory and Photo-responses Characteristics of Organic Thin Film Transistors Based on Multi-layer Gate Dielectric[J]. Chinese Journal of Luminescence, 2011,32(7): 729-735 DOI: 10.3788/fgxb20113207.0729.
Memory and Photo-responses Characteristics of Organic Thin Film Transistors Based on Multi-layer Gate Dielectric
The organic thin film transistors (OTFTs) based on multi-layer gate dielectric were presented without vacuum breaks. As a result
the OTFTs show multi-functional properties
such as electric-switching
memory
and photosensitive. The memory effect was attributed to the structure of OTFTs
i.e.
the utilization of the separated CaF
2
nanoparticle islands acting as the charge trapping centers. The photo-responses included two different types of fast response and slow response
and are
respectively
originated from the generation of mobile carriers by the absorption of photo energy higher than the band gap energy of semiconductor and the tapped and released of photo-induced electrons by the traps in the dielectric at the electrical field modulation.
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references
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