High-performance inverters based on ambipolar organic-inorganic heterojunction thin-film transistors |
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| Authors: | Sheng Sun Yuzhi Li Shengdong Zhang |
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| Affiliation: | (School of Electronic and Computer Engineering,Peking University Shenzhen Graduate School,Peking University,Shenzhen 518055,China;TCL China Star Optoelectronics Technology Co.,Ltd.,Shenzhen 518055,China) |
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| Abstract: | ![]()
This work reports on the integration of organic and inorganic semiconductors as heterojunction active layers for highperformance ambipolar transistors and complementary metal-oxide-semiconductor(CMOS)-like inverters. Pentacene is employed as a p-type organic semiconductor for its stable electrical performance, while the solution-processed scandium(Sc) substituted indium oxide(Sc In O) is employed as an n-type inorganic semiconductor. It is observed that by regulating the doping concentration of Sc, the electrical performance of the n-type semiconductor could be well controlled to obtain a balance with the electrical performance of the p-type semiconductor, which is vital for achieving high-performance inverters. When the doping concentration of Sc is 10 at.%, the CMOS-like logic inverters exhibit a voltage gain larger than 80 and a wide noise margin(53% of the theoretical value). The inverters also respond well to the input signal with frequency up to 500 Hz. |
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