Improving photovoltaic properties of P3HT:IC60BA through the incorporation of small molecules
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(Published version)
Date
2018
Authors
Xu, B.
Sai Anand, G.
Gopalan, A.I.
Qiao, Q.
Kang, S.W.
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Polymers, 2018; 10(2):1-10
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Abstract
We investigated the role of a functional solid additive, 2,3-dihydroxypyridine (DHP), in influencing the optoelectronic, morphological, structural and photovoltaic properties of bulk-heterojunction-based polymer solar cells (BHJ PSCs) fabricated using poly(3-hexylthiophene): indene-C 60 bisadduct (P3HT:IC 60 BA) photoactive medium. A dramatic increase in the power conversion efficiency (~20%) was witnessed for the BHJ PSCs treated with DHP compared to the pristine devices. A plausible explanation describing the alignment of pyridine moieties of DHP with the indene side groups of IC 60 BA is presented with a view to improving the performance of the BHJ PSCs via improved crystalline order and hydrophobicity changes.
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Data source: Supplementary material, http://www.mdpi.com/2073-4360/10/2/121#supplementary
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Copyright 2018 by the authors. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution(CC BY) license (https://creativecommons.org/licenses/by/4.0/)