Unified Study of Recombination in Polymer:Fullerene Solar Cells Using Transient Absorption and Charge-Extraction Measurements
(2013) In The Journal of Physical Chemistry Letters 4(12). p.2069-2072- Abstract
- Recombination in the well-performing bulk heterojunction solar cell blend between the conjugated polymer TQ-1 and the substituted fullerene PCBM has been investigated with pump-probe transient absorption and charge extraction of photo-generated carriers (photo-CELIV). Both methods are shown to generate identical and overlapping data under appropriate experimental conditions. The dominant type of recombination is bimolecular with a rate constant of 7 x 10(-12) cm(-3) s(-1). This recombination rate is shown to be fully consistent with solar cell performance. Deviations from an ideal bimolecular recombination process, in this material system only observable at high pump fluences, are explained with a time-dependent charge-carrier mobility,... (More)
- Recombination in the well-performing bulk heterojunction solar cell blend between the conjugated polymer TQ-1 and the substituted fullerene PCBM has been investigated with pump-probe transient absorption and charge extraction of photo-generated carriers (photo-CELIV). Both methods are shown to generate identical and overlapping data under appropriate experimental conditions. The dominant type of recombination is bimolecular with a rate constant of 7 x 10(-12) cm(-3) s(-1). This recombination rate is shown to be fully consistent with solar cell performance. Deviations from an ideal bimolecular recombination process, in this material system only observable at high pump fluences, are explained with a time-dependent charge-carrier mobility, and the implications of such a behavior for device development are discussed. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3979071
- author
- Andersson, Mattias LU ; Melianas, Armantas ; Infahsaeng, Yingyot LU ; Tang, Zheng ; Yartsev, Arkady LU ; Inganas, Olle and Sundström, Villy LU
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- in
- The Journal of Physical Chemistry Letters
- volume
- 4
- issue
- 12
- pages
- 2069 - 2072
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000320979400014
- pmid:26283254
- scopus:84879744948
- pmid:26283254
- ISSN
- 1948-7185
- DOI
- 10.1021/jz4009745
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Physics (S) (011001060)
- id
- bc1c5a6e-0e81-4029-bd87-c08b870af3ea (old id 3979071)
- date added to LUP
- 2016-04-01 13:03:04
- date last changed
- 2023-09-02 18:03:43
@article{bc1c5a6e-0e81-4029-bd87-c08b870af3ea, abstract = {{Recombination in the well-performing bulk heterojunction solar cell blend between the conjugated polymer TQ-1 and the substituted fullerene PCBM has been investigated with pump-probe transient absorption and charge extraction of photo-generated carriers (photo-CELIV). Both methods are shown to generate identical and overlapping data under appropriate experimental conditions. The dominant type of recombination is bimolecular with a rate constant of 7 x 10(-12) cm(-3) s(-1). This recombination rate is shown to be fully consistent with solar cell performance. Deviations from an ideal bimolecular recombination process, in this material system only observable at high pump fluences, are explained with a time-dependent charge-carrier mobility, and the implications of such a behavior for device development are discussed.}}, author = {{Andersson, Mattias and Melianas, Armantas and Infahsaeng, Yingyot and Tang, Zheng and Yartsev, Arkady and Inganas, Olle and Sundström, Villy}}, issn = {{1948-7185}}, language = {{eng}}, number = {{12}}, pages = {{2069--2072}}, publisher = {{The American Chemical Society (ACS)}}, series = {{The Journal of Physical Chemistry Letters}}, title = {{Unified Study of Recombination in Polymer:Fullerene Solar Cells Using Transient Absorption and Charge-Extraction Measurements}}, url = {{http://dx.doi.org/10.1021/jz4009745}}, doi = {{10.1021/jz4009745}}, volume = {{4}}, year = {{2013}}, }