Optimizing Device Structure of PTB7-Th:PNDI-T10 Bulk Heterojunction Polymer Solar Cells by Enhancing Optical Absorption

Daniel Dodzi Yao Setsoafia; Kiran Sreedhar Ram; Hooman Mehdizadeh Rad; David Ompong; Naveen Elumalai; Jai Singh

doi:10.3390/en15030711

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Optimizing Device Structure of PTB7-Th:PNDI-T10 Bulk Heterojunction Polymer Solar Cells by Enhancing Optical Absorption

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Optimizing Device Structure of PTB7-Th:PNDI-T10 Bulk Heterojunction Polymer Solar Cells by Enhancing Optical Absorption

Daniel Dodzi Yao Setsoafia, Kiran Sreedhar Ram, Hooman Mehdizadeh Rad, David Ompong, Naveen Elumalai and Jai Singh

Energies, Vol.15(3), pp.1-15

2022

DOI: https://doi.org/10.3390/en15030711

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Abstract

polymer solar cells

optimal structure OSCs

inverted OSC

Using the optical transfer matrix method, we optimized the layered structure of a conventional and an inverted BHJ OSC with the active layer made of blended PTB7-Th:PNDI-T10 by maximizing the optical absorption and, hence, the J(SC). The maximum JSC thus obtained from the optimised structure of the inverted OSC was 139 Am-2 and that of the conventional OSC was 135 Am-2. Simulation of the electric field distribution in both inverted and conventional OSCs showed that the formation of a single CIP was obtained in the active layer of thickness 105 nm in both OSCs. As the light incidents from the ITO side, it was found that excitons were generated more closely to ITO electrode, which favors the efficient charge transport and collection at the opposite electrodes in the inverted OSC, which produces higher J(SC).

Details

Title: Optimizing Device Structure of PTB7-Th:PNDI-T10 Bulk Heterojunction Polymer Solar Cells by Enhancing Optical Absorption
Authors: Daniel Dodzi Yao Setsoafia - Charles Darwin University
Kiran Sreedhar Ram - Charles Darwin University
Hooman Mehdizadeh Rad - Charles Darwin University
David Ompong - Charles Darwin University
Naveen Elumalai - Charles Darwin University
Jai Singh (Corresponding Author) - Charles Darwin University
Publication details: Energies, Vol.15(3), pp.1-15
Publisher: MDPI AG
Date published: 2022
DOI: 10.3390/en15030711
ISSN: 1996-1073
Copyright note: © 2022 by the authors. Licensee MDPI, Basel, Switzerland. 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/).
Data Availability: The data presented in this study are available in this article.
Organisation Unit: School of Science, Technology and Engineering
Language: English
Record Identifier: 991216649002621
Output Type: Journal article

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