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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...

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Autores principales: 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
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
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%.
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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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