In Situ Optical Studies on Morphology Formation in Organic Photovoltaic Blends
Liu, Yanfeng ; Yangui, Aymen LU ; Zhang, Rui ; Kiligaridis, Alexander LU ; Moons, Ellen ; Gao, Feng ; Inganäs, Olle ; Scheblykin, Ivan G. LU
and Zhang, Fengling
(2021)
In Small Methods
5(10).
- Abstract
The efficiency of bulk heterojunction (BHJ) based organic solar cells is highly dependent on the morphology of the blend film, which is a result of a fine interplay between donor, acceptor, and solvent during the film drying. In this work, a versatile set-up of in situ spectroscopies is used to follow the morphology evolution during blade coating of three iconic BHJ systems, including polymer:fullerene, polymer:nonfullerene small molecule, and polymer:polymer. the drying and photoluminescence quenching dynamics are systematically study during the film formation of both pristine and BHJ films, which indicate that the component with higher molecular weight dominates the blend film formation and the final morphology. Furthermore,... (More)
The efficiency of bulk heterojunction (BHJ) based organic solar cells is highly dependent on the morphology of the blend film, which is a result of a fine interplay between donor, acceptor, and solvent during the film drying. In this work, a versatile set-up of in situ spectroscopies is used to follow the morphology evolution during blade coating of three iconic BHJ systems, including polymer:fullerene, polymer:nonfullerene small molecule, and polymer:polymer. the drying and photoluminescence quenching dynamics are systematically study during the film formation of both pristine and BHJ films, which indicate that the component with higher molecular weight dominates the blend film formation and the final morphology. Furthermore, Time-resolved photoluminescence, which is employed for the first time as an in situ method for such drying studies, allows to quantitatively determine the extent of dynamic and static quenching, as well as the relative change of quantum yield during film formation. This work contributes to a fundamental understanding of microstructure formation during the processing of different blend films. The presented setup is considered to be an important tool for the future development of blend inks for solution-cast organic or hybrid electronics.
(Less)
- author
- Liu, Yanfeng
; Yangui, Aymen
LU
; Zhang, Rui
; Kiligaridis, Alexander
LU
; Moons, Ellen
; Gao, Feng
; Inganäs, Olle
; Scheblykin, Ivan G.
LU
and Zhang, Fengling
- organization
- publishing date
- 2021
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- bulk heterojunction morphology, in situ spectroscopy, laser scattering, photoluminescence quenching, time-resolved photoluminescence
- in
- Small Methods
- volume
- 5
- issue
- 10
- article number
- 2100585
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- scopus:85114723245
- pmid:34927929
- ISSN
- 2366-9608
- DOI
- 10.1002/smtd.202100585
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © 2021 The Authors. Small Methods published by Wiley-VCH GmbH
- id
- fc9d6a16-8a45-4dda-9087-910c5388f637
- date added to LUP
- 2021-10-12 15:31:39
- date last changed
- 2024-06-15 17:58:08
@article{fc9d6a16-8a45-4dda-9087-910c5388f637,
abstract = {{<p>The efficiency of bulk heterojunction (BHJ) based organic solar cells is highly dependent on the morphology of the blend film, which is a result of a fine interplay between donor, acceptor, and solvent during the film drying. In this work, a versatile set-up of in situ spectroscopies is used to follow the morphology evolution during blade coating of three iconic BHJ systems, including polymer:fullerene, polymer:nonfullerene small molecule, and polymer:polymer. the drying and photoluminescence quenching dynamics are systematically study during the film formation of both pristine and BHJ films, which indicate that the component with higher molecular weight dominates the blend film formation and the final morphology. Furthermore, Time-resolved photoluminescence, which is employed for the first time as an in situ method for such drying studies, allows to quantitatively determine the extent of dynamic and static quenching, as well as the relative change of quantum yield during film formation. This work contributes to a fundamental understanding of microstructure formation during the processing of different blend films. The presented setup is considered to be an important tool for the future development of blend inks for solution-cast organic or hybrid electronics.</p>}},
author = {{Liu, Yanfeng and Yangui, Aymen and Zhang, Rui and Kiligaridis, Alexander and Moons, Ellen and Gao, Feng and Inganäs, Olle and Scheblykin, Ivan G. and Zhang, Fengling}},
issn = {{2366-9608}},
keywords = {{bulk heterojunction morphology; in situ spectroscopy; laser scattering; photoluminescence quenching; time-resolved photoluminescence}},
language = {{eng}},
number = {{10}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Small Methods}},
title = {{In Situ Optical Studies on Morphology Formation in Organic Photovoltaic Blends}},
url = {{http://dx.doi.org/10.1002/smtd.202100585}},
doi = {{10.1002/smtd.202100585}},
volume = {{5}},
year = {{2021}},
}