| 학회 |
한국고분자학회 |
| 학술대회 |
2017년 봄 (04/05 ~ 04/07, 대전컨벤션센터) |
| 권호 |
42권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
Chemically Robust Ambipolar Organic Transistor Array Patterned by Photolithography Process |
| 초록 |
The instability of organic semiconductors and the unbalanced charge transport of electrons and holes have impeded their commercialization. Here, we report the preparation of organic ambipolar transistor arrays on a flexible plastic substrate, using a chemically robust polymer semiconductor, diketopyrrolopyrrole-selenophene copolymer with siloxane-terminated side chains. Well-balanced ambipolar charge transport was achieved by introducing graphene electrodes, due to the reduced contact resistance and energetic barrier between the electrode and semiconductor for electron transport. Hole and electron mobilities of the fabricated transistors with graphene electrodes showed dramatic enhancement, compared to those of gold electrodes. The devices operated even after being soaked in organic solvents for 24 h, and could be utilized as chemical sensor platforms. Our results represent a significant step towards the commercialisation of organic electronics via conventional photolithography. |
| 저자 |
박철희1, 이은광1, 이정훈2, 이해랑1, 하재환1, 양창덕3, 오준학1
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| 소속 |
1포항공과대, 2Univ. of California Santa Barbara, 3울산과학기술원 |
| 키워드 |
Organic Field-Effect Transistor; Polymer Semiconductor; Graphene; Flexible Electronics
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| E-Mail |
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