Effect of PTFE/ITO electrodes on the performance of organic photovoltaics

Author

Kang, Bonan ; Shi, Jinglong ; Gao, Qiang

Author_Institution

Key Lab. on Integrated Optoelectron., Jilin Univ. Region, Changchun, China

fYear

2011

fDate

16-18 Sept. 2011

Firstpage

3017

Lastpage

3019

Abstract

We investigate the effects of polytetrafluoroethylene (PTFE) on poly(3-hexylthiophene):phenyl-C61-butyric acid methyl ester (P3HT:PCBM) based organic photovoltaic (OPV) devices by inserting thermally evaporated PTFE films between indium-tin-oxide (ITO) and poly(3,4 ethylenedioxythiophene): poly(styrene-sulfonate) (PEDOT:PSS) layers. Significant improvement in terms of open-circuit voltage, short-circuit current, and thereby in its commensurate power conversion efficiency is achieved compared to devices with PEDOT:PSS layers. The OPVs performance enhancement is attributed to the formation of an artificial dipole layer resulting from the rich, negatively charged fluorine that facilitates the hole extraction process.

Keywords

indium compounds; polymer films; solar cells; tin compounds; ITO; OPV devices; P3HT:PCBM; PEDOT:PSS layers; PTFE-ITO electrodes; artificial dipole layer; hole extraction process; indium-tin-oxide; open-circuit voltage; organic photovoltaic devices; poly(3,4 ethylenedioxythiophene):poly(styrene-sulfonate); poly(3-hexylthiophene):phenyl-C61-butyric acid methyl ester; polytetrafluoroethylene; power conversion efficiency; short-circuit current; thermally evaporated PTFE films; Buffer layers; Indium tin oxide; Performance evaluation; Photovoltaic cells; Polymers; Buffer Interlayer; Organic Photovoltaics; Polymer; Polytetrafluoroethylene (PTFE);

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Control Engineering (ICECE), 2011 International Conference on

Conference_Location

Yichang

Print_ISBN

978-1-4244-8162-0

Type

conf

DOI

10.1109/ICECENG.2011.6057660

Filename

6057660