High speeds complementary integrated circuits fabricated with all‐printed polymeric semiconductors |
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| Authors: | Kang‐Jun Baeg Dongyoon Khim Dong‐Yu Kim Soon‐Won Jung Jae Bon Koo In‐Kyu You Henry Yan Antonio Facchetti Yong‐Young Noh |
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| Affiliation: | 1. Heeger Center for Advanced Materials, Department of Nanobio Materials and Electronics, Gwangju Institute of Science and Technology (GIST), 261 Cheomdan‐gwagiro, Buk‐gu, Gwangju 500‐712, Republic of Korea;2. Convergence Components and Materials Research Laboratory, Electronics and Telecommunications Research Institute (ETRI), 161 Gajeong‐dong, Yuseong‐gu, Daejeon 305‐350, Republic of Korea;3. Polyera Corporation, 8045 Lamon Avenue Skokie, IL 60077;4. Department of Chemical Engineering, Hanbat National University, San 16‐1, Dukmyung‐dong, Yuseong‐gu, Daejeon 305‐719, Republic of Korea |
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| Abstract: | Inkjet‐printed high speed polymeric complementary circuits are fabricated using an n‐type ([poly{[N,N′‐bis(2‐octyldodecyl)‐naphthalene‐1,4,5,8‐bis(dicarboximide)‐2,6‐diyl]‐alt‐5,5′‐(2,2′‐dithiophene)} [P(NDI2OD‐T2), Polyera ActivInk N2200] and two p‐type polymers [poly(3‐hexylthiophene) (P3HT) and a dithiophene‐based polymer (Polyera ActivInk P2100)]. The top‐gate/bottom‐contact (TG/BC) organic field‐effect transistors (OFETs) exhibit well‐balanced and very‐high hole and electron mobilities (μFET) of 0.2–0.5 cm2/Vs, which were enabled by optimization of the inkjet‐printed active features, small contact resistance both of electron and hole injections, and effective control over gate dielectrics and its orthogonal solvent effect (selection of poly(methyl methacrylate) and 2‐ethoxyethanol). Our first demonstrated inkjet‐printed polymeric complementary devices have been integrated to high‐performance complementary inverters (gain >30) and ring oscillators (oscillation frequency ～50 kHz). We believe that the operating frequency of printable organic circuits can be further improved more than 10 MHz by fine‐tuning of the device architecture and optimization of the p‐ and n‐channel semiconductor processing. © 2010 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys, 2010 |
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| Keywords: | flexible electronics inkjet printing organic electronics organic field‐effect transistors |
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