| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 봄 (05/01 ~ 05/03, 부산 벡스코(BEXCO)) |
| 권호 |
23권 1호 |
| 발표분야 |
디스플레이_포스터 |
| 제목 |
Piezotronic graphene barristor: Efficient and interactive modulation of Schottky barrier |
| 초록 |
The piezopotential generated in non-centrosymmetric crystals under external mechanical stimuli can be exploited to modulate the contact characteristics at the metal-semiconductor interface. The extent of electric modulation by the piezopotential was found to be moderate. This is mainly because the piezopotential was designed to alter the band bend of the semiconductor layer, which changed the injection barrier by 0.1 eV. We propose an efficient method to utilize the piezopotential for modulating Schottky barrier, i.e. piezotronic graphene barristor. This was visualized directly using Kelvin probe force microscopy experiments for the first time. A large change in the work function of graphene allowed effective tuning of the height of the SB formed at the graphene/semiconductor junction. This work presents an efficient method for harnessing the piezopotential generated from PENG to actively control the operation of flexible electronics through external mechanical stimuli. |
| 저자 |
김성찬1, 조정호2
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| 소속 |
1성균관대, 2연세대 |
| 키워드 |
Piezopotential modulation; Graphene barristor; Schottky barrier; Kelvin probe force microscopy; Interactive
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| E-Mail |
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