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Nanoparticle-based flexible inverters with a vertical structure
- Authors
- Yun, Junggwon; Cho, Kyoungah; Kim, Sangsig
- Issue Date
- 31-Jul-2013
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- II-VI semiconductors; Electronic circuits; Nanocrystals; Flexible substrate
- Citation
- THIN SOLID FILMS, v.539, pp.256 - 259
- Indexed
- SCIE
SCOPUS
- Journal Title
- THIN SOLID FILMS
- Volume
- 539
- Start Page
- 256
- End Page
- 259
- ISSN
- 0040-6090
- Abstract
- We report the construction and characterization of a representative vertical inverter with a nanoparticle (NP)-based p-channel thin-film transistor (TFT) and a NP-based n-channel TFT on a flexible substrate. The vertical inverter consists of a p-type HgTe NP-based TFT on the first-stair layer and an n-type HgSe NP-based TFT on the second-stair layer. In the vertical inverter, an isolation layer made of polyvinyl alcohol prevents the cross talk between these TFTs. The vertical inverter exhibits the typical inverter characteristics with a gain of 4, and the reproducible operation was obtained in the upward and downward bending states, as well as in the flat state. Moreover, the inverter characteristics were maintained even after 1000 bending cycles with 0.7% strain. (C) 2013 Elsevier B.V. All rights reserved.
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Related Researcher
- Kim, Sang sig
- College of Engineering (School of Electrical Engineering)