Publication detail

Impedance Spectroscopy Study of Organic Photovoltaic Cells with an Inkjet Printed Hole-Extracting Graphene Oxide Layer

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

journal article in Scopus

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

27. 5. 2019

ISBN

1662-9752

Periodical

Materials Science Forum

Year of study

955

Number

2019

State

Swiss Confederation

Pages from

31

Pages to

36

Pages count

6

URL

https://www.scientific.net/MSF.955.31

BibTex

@article{BUT157148,
  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",
  journal="Materials Science Forum",
  year="2019",
  volume="955",
  number="2019",
  pages="31--36",
  doi="10.4028/www.scientific.net/MSF.955.31",
  issn="1662-9752",
  url="https://www.scientific.net/MSF.955.31"
}