Photovoltaic properties of benzotriazole containing alternating donor-acceptor copolymers: Effect of alkyl chain length

Baran D, Balan A, Stubhan T, Ameri T, Toppare L, Brabec C (2012)

Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2012

Journal

Synthetic Metals Elsevier

Publisher: Elsevier

Book Volume: 162

Pages Range: 2047-2051

Journal Issue: 23

DOI: 10.1016/j.synthmet.2012.09.017

Abstract

A series of variable alkyl chain length substituted donor-acceptor (D-A) conjugated polymers with thiophene ring as the donor and benzotriazole moiety as the acceptor has been investigated in bulk heterojunction solar cells. The optical and electrochemical properties showed that the absorption onsets and the energy levels of the copolymers were not affected by alkyl substitution revealing 1.9 eV of optical band gap. The morphologies of the blend film can be fine-tuned by increasing the chain length attached to the benzotriazole unit. Photovoltaic devices were fabricated using (6,6)-phenyl-C-butyric acid methyl ester (PCBM) and (6,6)-phenyl-C-butyric acid methyl ester (PCBM) as the acceptors. The maximum performance was achieved with a V of 0.75 V, J of 3.70 mA/cm , FF of 45% and a PCE of 1.23% for the PTBT-DA10:PCBM device using 1:4 w/w ratio in chlorobenzene (CB). © 2012 Elsevier B.V. All rights reserved.

Authors with CRIS profile

Derya Baran Institute Materials for Electronics and Energy Technology (i-MEET) Tobias Stubhan Institute Materials for Electronics and Energy Technology (i-MEET) Tayebeh Ameri Institute Materials for Electronics and Energy Technology (i-MEET) Christoph Brabec Institute Materials for Electronics and Energy Technology (i-MEET)

Involved external institutions

Middle East Technical University (METU) / Orta Doğu Teknik Üniversitesi TR Turkey (TR) Eindhoven University of Technology / Technische Universiteit Eindhoven (TU/e) NL Netherlands (NL)

How to cite

APA:

Baran, D., Balan, A., Stubhan, T., Ameri, T., Toppare, L., & Brabec, C. (2012). Photovoltaic properties of benzotriazole containing alternating donor-acceptor copolymers: Effect of alkyl chain length. Synthetic Metals, 162(23), 2047-2051. https://dx.doi.org/10.1016/j.synthmet.2012.09.017

MLA:

Baran, Derya, et al. "Photovoltaic properties of benzotriazole containing alternating donor-acceptor copolymers: Effect of alkyl chain length." Synthetic Metals 162.23 (2012): 2047-2051.

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