Title :
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
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);
Conference_Titel :
Electrical and Control Engineering (ICECE), 2011 International Conference on
Conference_Location :
Yichang
Print_ISBN :
978-1-4244-8162-0
DOI :
10.1109/ICECENG.2011.6057660
