Observation of ambipolar field-effect behavior in donor-acceptor conjugated copolymers
Cited 2 times inCited 1 times in
- Observation of ambipolar field-effect behavior in donor-acceptor conjugated copolymers
- Cho, Shinuk; Seo, Jung Hwa; Kim, Gi-Hwan; Kim, Jin Young; Woo, Han Young
- Active Layer; Ambipolar; Ambipolar properties; Conjugated copolymers; D-A copolymers; Donor-acceptors; Electron-deficient; Field-effect; Hydroxyl groups; P-type; Passivation layer; Semiconductor-insulator interface
- Issue Date
- ROYAL SOC CHEMISTRY
- JOURNAL OF MATERIALS CHEMISTRY, v.22, no.39, pp.21238 - 21241
- Although donor (D)-acceptor (A) conjugated copolymers possess an electron deficient unit, most D-A copolymers exhibit only hole transport properties (p-type). While there are some D-A copolymers that show ambipolarity, n-type behaviour is highly dependent on the type of acceptor used. In this work, ambipolar field-effect behaviour was derived from general D-A conjugated copolymers, believed to be a typical p-type material, by introducing a functional passivation layer between gate dielectric and active layers using polypropylene-co-1-butene (PPcB). The PPcB layer effectively covered the hydroxyl groups and induced a reduction in the energetic disorder at the semiconductor-insulator interface. As a result, the FET devices fabricated using D-A conjugated copolymers, such as PCDTBT, PTBT and Si-PCPDTBT, showed clear ambipolar properties.
- ; Go to Link
- Appears in Collections:
- ECHE_Journal Papers
- Files in This Item:
can give you direct access to the published full text of this article. (UNISTARs only)
Show full item record
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.