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POSPÍŠIL, J. KOVALENKO, A. SCHMIEDOVÁ, V. ZMEŠKAL, O. VALA, M.
Original Title
Impedance Spectroscopy Study of Organic Photovoltaic Cells with an Inkjet Printed Hole-Extracting Graphene Oxide Layer
Type
abstract
Language
English
Original Abstract
This paper deals with the study of light conversion efficiency of organic photovoltaic cells with an inkjet-printed graphene oxide layer. The graphene oxide is used in this experiment as a hole-extracting, electron blocking layer in bulk heterojunction organic solar cells based on DPP(TBFu)2:PC60BM blend. It is also studied the influence of the GO reduction (chemically, by UV radiation and by annealing) on the final efficiency of photovoltaic conversion. Power conversion efficiency and the transport of charge carriers are evaluated by measuring of current-voltage characteristics and mainly by impedance spectroscopy analysis. In this regard, using of graphene oxide and its reduced form showed negative influence on the device performance caused by an inefficient charge carrier collection at the short-circuit condition.
Keywords
organic solar cells; graphene oxide; reduction; current‐voltage measurements; impedance spectroscopy
Authors
POSPÍŠIL, J.; KOVALENKO, A.; SCHMIEDOVÁ, V.; ZMEŠKAL, O.; VALA, M.
Released
12. 9. 2018
Publisher
Vysoké učení technické v Brně, Fakulta chemická, Purkyňova 464/118, 612 00 Brno
Location
Brno
ISBN
978-80-214-5488-0
Book
7th Meeting on Chemistry and Life 2018. Book of abstracts
Pages count
1
BibTex
@misc{BUT156112, author="Jan {Pospíšil} and Alexander {Kovalenko} and Veronika {Schmiedová} and Oldřich {Zmeškal} and Martin {Vala}", title="Impedance Spectroscopy Study of Organic Photovoltaic Cells with an Inkjet Printed Hole-Extracting Graphene Oxide Layer", booktitle="7th Meeting on Chemistry and Life 2018. Book of abstracts", year="2018", pages="1", publisher="Vysoké učení technické v Brně, Fakulta chemická, Purkyňova 464/118, 612 00 Brno", address="Brno", isbn="978-80-214-5488-0", note="abstract" }