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

Journal article
(Original article)


Publication Details

Author(s): Baran D, Balan A, Stubhan T, Ameri T, Toppare L, Brabec C
Journal: Synthetic Metals
Publisher: Elsevier
Publication year: 2012
Volume: 162
Journal issue: 23
Pages range: 2047-2051
ISSN: 0379-6779
Language: English


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.



FAU Authors / FAU Editors

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


External institutions with authors

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


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.

BibTeX: 

Last updated on 2018-08-12 at 13:50