A Multifunction Heterojunction Formed Between Pentacene and a Single‐Crystal Silicon Nanomembrane. (19th February 2013)

• Record Type: Journal Article
• Authors: Seo, Jung‐Hun; Oh, Tae‐Yeon; Park, Jungho; Zhou, Weidong; Ju, Byeong‐Kwon; Ma, Zhenqiang
• Is Part Of: Advanced functional materials. Volume 23:Number 27(2013)
• Page Start: 3398
• Page End: 3403
• Publication Date: 2013-02-19
• Subjects: Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adfm.201203309
• Languages: English
• ISSNs: 1616-301X

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>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.</p> </abstract>