Flexible organic phototransistors based on a combination of printing methods
- Authors
- Kim, Minseok; Ha, Hyun-Jun; Yun, Hui-Jun; You, In-Kyu; Baeg, Kang-Jun; Kim, Yun-Hi; Ju, Byeong-Kwon
- Issue Date
- 11월-2014
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Organic phototransistors; Printed electronics; Reverse offset printing; Organic semiconductors; Field-effect transistors
- Citation
- ORGANIC ELECTRONICS, v.15, no.11, pp.2677 - 2684
- Indexed
- SCIE
SCOPUS
- Journal Title
- ORGANIC ELECTRONICS
- Volume
- 15
- Number
- 11
- Start Page
- 2677
- End Page
- 2684
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/96990
- DOI
- 10.1016/j.orgel.2014.07.041
- ISSN
- 1566-1199
- Abstract
- Highly photosensitive organic phototransistors (OPTs) are successfully demonstrated on a flexible substrate using all-solution process as well as a combination of printing methods which consist of roll-to-plate reverse offset printing (ROP), inkjet printing and bar coating. Excellent electrical switching characteristics are obtained from heterogeneous interfacial properties of the reverse-offset-printed silver nanoparticle electrode and the inkjet-printed p-channel polymeric semiconductor. In particular, the OPTs exhibit remarkably photosensitivity with a photo-to-dark current ratio exceeding 5 orders. This optoelectronic properties of the combinational printed OPTs are theoretically and experimentally studied, and found the comparable tendency. In addition, excellent mechanical stability is observed with up to 0.5% of strain applied to the OPTs. Hence, by manufactured with a combination of various graphic art printing methods such as roll-to-plate ROP, inkjet printing, and bar coating, these devices are very promising candidates for large-area and low-cost printed and flexible optoelectronics applications. (C) 2014 Elsevier B.V. All rights reserved.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > School of Electrical Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.