Jump to main content
Jump to site search

Issue 5, 2010
Previous Article Next Article

A polythiophene derivative with octyl diphenylamine-vinylene side chains: synthesis and its applications in field-effect transistors and solar cells

Author affiliations

Abstract

A new polythiophene derivative with octyl diphenylamine-vinylene conjugated side chains, DPAV-PT, was synthesized by the Stille coupling reaction, and characterized by 1H NMR, GPC, TGA, UV-Vis absorption spectroscopy, and cyclic voltammetry. The copolymer is readily soluble in the common organic solvents and exhibits good thermal stability with 5% weight loss temperature of 267 °C. DPAV-PT possesses a broad absorption band at 300–650 nm (with an optical bandgap of 1.85 eV). Cyclic voltammetry displays a HOMO energy level of −5.01 eV. The weight average molecular weight (Mw) of DPAV-PT is 3.1 × 104 with the polydispersity index of 1.3. A polymer solar cell with the configuration of ITO/PEDOT:PSS/DPAV-PT:PCBM (1 : 1 w/w)/Ca/Al has a power conversion efficiency of 0.7% under the illumination of AM1.5, 100 mW cm−2. The field effect hole mobility of the polymer reached 6.1 × 10−4 cm2 V−1 s−1 with an on/off ratio of 103 and a threshold voltage of −7 V after 180 °C annealing.

Graphical abstract: A polythiophene derivative with octyl diphenylamine-vinylene side chains: synthesis and its applications in field-effect transistors and solar cells

Back to tab navigation

Article information


Submitted
20 Jan 2010
Accepted
02 Feb 2010
First published
09 Mar 2010

Polym. Chem., 2010,1, 678-684
Article type
Paper

A polythiophene derivative with octyl diphenylamine-vinylene side chains: synthesis and its applications in field-effect transistors and solar cells

B. Liu, W. Wu, B. Peng, Y. Liu, Y. He, C. Pan and Y. Zou, Polym. Chem., 2010, 1, 678
DOI: 10.1039/C0PY00022A

Social activity

Search articles by author

Spotlight

Advertisements