Poly(diketopyrrolopyrrole-terthiophene) for ambipolar logic and photovoltaics

Johan C Bijleveld; Arjan P Zoombelt; Simon G J Mathijssen; Martijn M Wienk; Mathieu Turbiez; Dago M de Leeuw; René A J Janssen

doi:10.1021/ja907506r

Poly(diketopyrrolopyrrole-terthiophene) for ambipolar logic and photovoltaics

J Am Chem Soc. 2009 Nov 25;131(46):16616-7. doi: 10.1021/ja907506r.

Authors

Johan C Bijleveld¹, Arjan P Zoombelt, Simon G J Mathijssen, Martijn M Wienk, Mathieu Turbiez, Dago M de Leeuw, René A J Janssen

Affiliation

¹ Molecular Materials and Nanosystems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.

PMID: 19886605
DOI: 10.1021/ja907506r

Abstract

A new semiconducting polymer, PDPP3T, with alternating diketopyrrolopyrrole and terthiophene units is presented. PDPP3T has a small band gap of 1.3 eV and exhibits nearly balanced hole and electron mobilities of 0.04 and 0.01 cm(2) V(-1) s(-1), respectively, in field-effect transistors (FETs). By the combination of two identical ambipolar transistors, an inverter was constructed that exhibits a gain of approximately 30. When PDPP3T was combined with [60]PCBM or [70]PCBM in a 1:2 weight ratio, photovoltaic cells were made that provide a photoresponse up to 900 nm and an AM1.5 power conversion efficiency of 3.8 or 4.7%, respectively. In contrast to the almost constant FET mobility, the efficiency of the photovoltaic cells was found to be strongly dependent on the molecular weight of PDPP3T and the use of diiodooctane as a processing agent.