High-photovoltage all-polymer solar cells based on a diketopyrrolopyrrole-isoindigo acceptor polymer
Date
2017
Authors
Li, Z.
Xu, X.
Zhang, W.
Genene, Z.
Mammo, W.
Yartsev, A.
Andersson, M.R.
Janssen, R.A.J.
Wang, E.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Journal of Materials Chemistry A, 2017; 5(23):11693-11700
Statement of Responsibility
Conference Name
Abstract
In this work, we synthesized and characterized two new n-type polymers PTDPP-PyDPP and PIID-PyDPP. The former polymer is composed of pyridine-flanked diketopyrrolopyrrole (PyDPP) and thiophene-flanked diketopyrrolopyrrole (TDPP). The latter polymer consists of PyDPP and isoindigo (IID). PIID-PyDPP exhibits a much higher absorption coefficient compared to the widely used naphthalene diimide (NDI)-based acceptor polymers, and its high-lying LUMO level affords it to achieve a high open-circuit voltage (V oc ). As a result, an all-polymer solar cell (all-PSC) fabricated from a high band gap polymer PBDTTS-FTAZ as the donor and PIID-PyDPP as the acceptor attained a high V oc of 1.07 V with a power conversion efficiency (PCE) of 4.2%. So far, it has been one of the highest PCEs recorded from all-PSCs using diketopyrrolopyrrole (DPP)-based acceptors. Gratifyingly, no obvious PCE decay was observed in two weeks, unraveling good stability of the all-PSC. This work demonstrates that the electron-withdrawing PyDPP unit can be a promising building block for new acceptor polymers in all-PSCs.
School/Discipline
Dissertation Note
Provenance
Description
Data source: Supplementary information, http://doi.org/10.1039/C6TA09379E
Link to a related website: https://pure.tue.nl/ws/files/73067354/Accepted_Manuscript.pdf, Open Access via Unpaywall
Access Status
Rights
Copyright 2017 The Royal Society of Chemistry