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Alexander Kovalenko, Jana Honová, Martin Vala, Stanislav Luňák, Ladislav Fekete, Petra Horáková, Lenka Dokládalová, Lubomír Kubáč, and Martin Weiter
Original Title
Effect of the Side Chains and Anode Material on Thermal Stability and Performance of Bulk-Heterojunction Solar Cells Using DPP(TBFu) 2 Derivatives as Donor Materials
Type
journal article in Web of Science
Language
English
Original Abstract
An optimized fabrication of bulk-heterojunction solar cells (BHJ SCs) based on previously reported diketopyrrolopyrrole donor,ethyl-hexylated DPP(TBFu)2,aswellastwonewDPP(TBFu)2derivatives with ethyl-hexyl acetate and diethyl acetal solubilizingside-chains and PC60BM as an acceptor is demonstrated. Slow gradual annealing of the solar cell causing the effective donor-acceptor reorganization, and as a result higher power conversion efficiency (PCE), is described. By replacing a hole transportinglayer PEDOT:PSS with MoO3we obtained higher PCE values as well as higher thermal stability of the anode contact interface.DPP(TBFu)2derivative containing ethyl-hexyl acetate solubilizing side-chains possessed the best as-cast self-assembly and highcrystallinity. However, the presence of ethyl-hexyl acetate and diethyl acetal electrophilic side-chains stabilizes HOMO energy ofisolated DPP(TBFu)2donors with respect to the ethyl-hexylated one, according to cyclic voltammetry. Effect of the Side Chains and Anode Material on Thermal Stability and Performance of Bulk-Heterojunction Solar Cells Using DPP(TBFu) 2 Derivatives as Donor Materials.
Keywords
Organic solar cells, DPP, Thermal stability
Authors
RIV year
2015
Released
8. 12. 2015
Publisher
Hindawi
Location
Egypt
ISBN
1110-662X
Periodical
INTERNATIONAL JOURNAL OF PHOTOENERGY
Year of study
1
Number
State
Arab Republic of Egypt
Pages from
Pages to
9
Pages count
URL
http://dx.doi.org/10.1155/2015/734917
Full text in the Digital Library
http://hdl.handle.net/11012/63138
BibTex
@article{BUT126483, author="Alexander {Kovalenko} and Jana {Vrchotová} and Martin {Vala} and Stanislav {Luňák} and Martin {Weiter}", title="Effect of the Side Chains and Anode Material on Thermal Stability and Performance of Bulk-Heterojunction Solar Cells Using DPP(TBFu) 2 Derivatives as Donor Materials", journal="INTERNATIONAL JOURNAL OF PHOTOENERGY", year="2015", volume="1", number="1", pages="1--9", doi="10.1155/2015/734917", issn="1110-662X", url="http://dx.doi.org/10.1155/2015/734917" }