A Multifunction Heterojunction Formed Between Pentacene and a Single-Crystal Silicon Nanomembrane
- Authors
- Seo, Jung-Hun; Oh, Tae-Yeon; Park, Jungho; Zhou, Weidong; Ju, Byeong-Kwon; Ma, Zhenqiang
- Issue Date
- 19-7월-2013
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- organic-inorganic heterojunctions; flexible photodetectors; silicon nanomembranes; pentacene
- Citation
- ADVANCED FUNCTIONAL MATERIALS, v.23, no.27, pp.3398 - 3403
- Indexed
- SCIE
SCOPUS
- Journal Title
- ADVANCED FUNCTIONAL MATERIALS
- Volume
- 23
- Number
- 27
- Start Page
- 3398
- End Page
- 3403
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/102689
- DOI
- 10.1002/adfm.201203309
- ISSN
- 1616-301X
- Abstract
- A mesh patterned n-type single-crystalline silicon nanomembrane (SiNM) created from a silicon-on-insulator (SOI) wafer is complementally combined with a p-type pentacene layer to form a heterogeneous p-n junction on a flexible plastic substrate. Excellent rectifying characteristics are obtained from the heterogeneous p-n diode. The diode also exhibits photosensitivity at visible wavelengths with a photo-to-dark current ratio exceeding four orders, a responsivity of 0.7 A/W, and an external quantum efficiency of 21.9% at 633 nm. Over 60% average transmittance in the visible spectrum is measured from the heterogeneous multilayer junction on a plastic substrate. Outstanding mechanical bending characteristics are observed with up to 1.08% of strain applied to the diode. These results suggest that organic-inorganic heterogeneous integration may be a viable strategy to build flexible organic-inorganic heterojunction devices and thus enable a number of novel multifunctional applications.
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