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- Title
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
- 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.
- Subjects
SILICON; PENTACENE; P-N heterojunctions; SEMICONDUCTOR wafers; WAVELENGTHS; PHOTOSENSITIVITY
- Publication
Advanced Functional Materials, 2013, Vol 23, Issue 27, p3398
- ISSN
1616-301X
- Publication type
Article
- DOI
10.1002/adfm.201203309