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New Non-Fullerene Acceptor with Extended Conjugation of Cyclopenta [2,1-b:3,4-b’] Dithiophene for Organic Solar Cells
Herein, we design and characterize 9-heterocyclic ring non-fullerene acceptors (NFAs) with the extended backbone of indacenodithiophene by cyclopenta [2,1-b:3,4-b’] dithiophene (CPDT). The planar conjugated CPDT donor enhances absorption by reducing vibronic transition and charge transport. Develope...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9658291/ https://www.ncbi.nlm.nih.gov/pubmed/36364440 http://dx.doi.org/10.3390/molecules27217615 |
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author | Sun, Cheng Lee, Sanseong Choi, Changeun Jeong, Soyeong Oh, Juhui Kim, Ju-Hyeon Kim, Jaeyoung Baek, Ho Eon Kang, Hongkyu Jang, Soo-Young Choi, Hyun Ho Lee, Kwanghee Kim, Yun-Hi |
author_facet | Sun, Cheng Lee, Sanseong Choi, Changeun Jeong, Soyeong Oh, Juhui Kim, Ju-Hyeon Kim, Jaeyoung Baek, Ho Eon Kang, Hongkyu Jang, Soo-Young Choi, Hyun Ho Lee, Kwanghee Kim, Yun-Hi |
author_sort | Sun, Cheng |
collection | PubMed |
description | Herein, we design and characterize 9-heterocyclic ring non-fullerene acceptors (NFAs) with the extended backbone of indacenodithiophene by cyclopenta [2,1-b:3,4-b’] dithiophene (CPDT). The planar conjugated CPDT donor enhances absorption by reducing vibronic transition and charge transport. Developed NFAs with different end groups shows maximum absorption at approximately 790–850 nm in film. Because of the electronegative nature of the end-group, the corresponding acceptors showed deeper LUMO energy levels and red-shifted ultraviolet absorption. We investigate the crystallinity, film morphology, surface energy, and electronic as well as photovoltaic performance. The organic photovoltaic cells using novel NFAs with the halogen end groups fluorine or chlorine demonstrate better charge collection and faster exciton dissociation than photovoltaic cells using NFAs with methyl or lacking a substituent. Photovoltaic devices constructed from m-Me-ITIC with various end groups deliver power conversion efficiencies of 3.6–11.8%. |
format | Online Article Text |
id | pubmed-9658291 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-96582912022-11-15 New Non-Fullerene Acceptor with Extended Conjugation of Cyclopenta [2,1-b:3,4-b’] Dithiophene for Organic Solar Cells Sun, Cheng Lee, Sanseong Choi, Changeun Jeong, Soyeong Oh, Juhui Kim, Ju-Hyeon Kim, Jaeyoung Baek, Ho Eon Kang, Hongkyu Jang, Soo-Young Choi, Hyun Ho Lee, Kwanghee Kim, Yun-Hi Molecules Article Herein, we design and characterize 9-heterocyclic ring non-fullerene acceptors (NFAs) with the extended backbone of indacenodithiophene by cyclopenta [2,1-b:3,4-b’] dithiophene (CPDT). The planar conjugated CPDT donor enhances absorption by reducing vibronic transition and charge transport. Developed NFAs with different end groups shows maximum absorption at approximately 790–850 nm in film. Because of the electronegative nature of the end-group, the corresponding acceptors showed deeper LUMO energy levels and red-shifted ultraviolet absorption. We investigate the crystallinity, film morphology, surface energy, and electronic as well as photovoltaic performance. The organic photovoltaic cells using novel NFAs with the halogen end groups fluorine or chlorine demonstrate better charge collection and faster exciton dissociation than photovoltaic cells using NFAs with methyl or lacking a substituent. Photovoltaic devices constructed from m-Me-ITIC with various end groups deliver power conversion efficiencies of 3.6–11.8%. MDPI 2022-11-06 /pmc/articles/PMC9658291/ /pubmed/36364440 http://dx.doi.org/10.3390/molecules27217615 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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/). |
spellingShingle | Article Sun, Cheng Lee, Sanseong Choi, Changeun Jeong, Soyeong Oh, Juhui Kim, Ju-Hyeon Kim, Jaeyoung Baek, Ho Eon Kang, Hongkyu Jang, Soo-Young Choi, Hyun Ho Lee, Kwanghee Kim, Yun-Hi New Non-Fullerene Acceptor with Extended Conjugation of Cyclopenta [2,1-b:3,4-b’] Dithiophene for Organic Solar Cells |
title | New Non-Fullerene Acceptor with Extended Conjugation of Cyclopenta [2,1-b:3,4-b’] Dithiophene for Organic Solar Cells |
title_full | New Non-Fullerene Acceptor with Extended Conjugation of Cyclopenta [2,1-b:3,4-b’] Dithiophene for Organic Solar Cells |
title_fullStr | New Non-Fullerene Acceptor with Extended Conjugation of Cyclopenta [2,1-b:3,4-b’] Dithiophene for Organic Solar Cells |
title_full_unstemmed | New Non-Fullerene Acceptor with Extended Conjugation of Cyclopenta [2,1-b:3,4-b’] Dithiophene for Organic Solar Cells |
title_short | New Non-Fullerene Acceptor with Extended Conjugation of Cyclopenta [2,1-b:3,4-b’] Dithiophene for Organic Solar Cells |
title_sort | new non-fullerene acceptor with extended conjugation of cyclopenta [2,1-b:3,4-b’] dithiophene for organic solar cells |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9658291/ https://www.ncbi.nlm.nih.gov/pubmed/36364440 http://dx.doi.org/10.3390/molecules27217615 |
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