کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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5364337 | 1388315 | 2011 | 4 صفحه PDF | دانلود رایگان |
Functional laser printed Organic Thin Film Transistors (OTFTs) have been achieved from multilayer substrates composed with semiconductor and electrodes. The p-type copper phthalocyanine (CuPc) was used to form the active layer. Different kinds of metallic materials were used for source and drain electrodes. Multilayer donor substrates were prepared by the successive depositions of materials by either thermal evaporation under vacuum or laser printing. The materials were transferred together in a single step onto a receiver substrate by laser pulses in the picosecond regime. The latter substrate formed the gate and the dielectric of the transistor. The results are compared with the step-by-step laser printing process, where electrodes and organic layer were successively printed from two different donor substrates. The multilayer laser printing reveals an improvement of the performances of the OTFT devices.
Research highlightsⶠLaser printing of organic CuPc semiconductor leads to operational OTFTs. ⶠLIFT can print multilayer systems with high spatial resolution and no damage in the layers. ⶠImprovement of OTFT performances in printing a multilayer system made of organic semiconductor and metallic electrodes. ⶠBest OTFT performances obtained with silver electrodes.
Journal: Applied Surface Science - Volume 257, Issue 12, 1 April 2011, Pages 5152-5155