New Poly(arylene vinylene)s Based on Diketopyrrolopyrrole for Ambipolar Transistors
- Authors
- Wu, Pei-Tzu; Kim, Felix Sunjoo; Jenekhe, Samson A.
- Issue Date
- Oct-2011
- Publisher
- AMER CHEMICAL SOC
- Keywords
- diketopyrrolopyrrole; poly(arylene vinylene); ambipolar charge transport; field-effect transistor; complementary inverter
- Citation
- CHEMISTRY OF MATERIALS, v.23, no.20, pp 4618 - 4624
- Pages
- 7
- Journal Title
- CHEMISTRY OF MATERIALS
- Volume
- 23
- Number
- 20
- Start Page
- 4618
- End Page
- 4624
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/36913
- DOI
- 10.1021/cm202247a
- ISSN
- 0897-4756
1520-5002
- Abstract
- Three diketopyrrolopyrrole-based donor acceptor copolymer semiconductors were synthesized by Stile coupling polymerization and their structural, photophysical, electrochemical, and field-effect charge transport properties were characterized. The new copolymers, poly[3,6-(2,5-bis(2-hexyldecyl)pyrrolo[3,4-c]pyrrole-1,4-dione)-alt-1,2-bis-(2'-thienyl)vinyl-5',5 ''-diyl] (HD-PPTV), poly[3,6-(2,5-bis(2-hexyldecyl)pyrrolo[3,4-c]pyrrole-1,4-dione)-alt-1,2-bisphenylvinyl-4',4 ''-diyl] (HD-PPPV), and a 50:50 random copolymer (PPTPV), have moderate number-average molecular weights (21800-88800 g/mol). The copolymers have optical absorption bands in the visible to near-IR regions with optical bandgaps that varied from 1.22 eV for HD-PPTV to 2.0 eV for HD-PPPV. Ionization potentials of 5.14-5.48 eV and electron affinities of 3.13-3.34 eV were derived from cyclic voltammetry. Ambipolar charge transport was seen in transistors based on HD-PPTV and PPTPV, whereas only hole transport was observed in HD-PPPV. Field-effect transistors fabricated from HD-PPTV had hole and electron mobilities as high as 0.2 and 0.03 cm(2) V(-1) s(-1). Integration of the ambipolar HD-PPTV transistors into complementary inverters demonstrated sharp switching characteristics with large voltage gains of up to 27.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > School of Chemical Engineering and Material Science > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/36913)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.