TY - GEN
T1 - Large-area CVD graphene as transparent electrode for efficient organic solar cells
AU - Kalita, Golap
AU - Wakita, Koichi
AU - Umeno, Masayoshi
AU - Hayashi, Yasuhiko
AU - Tanemura, Masaki
PY - 2012
Y1 - 2012
N2 - Indium tin oxide (ITO) and related oxide based materials have been widely used as transparent electrode in optoelectronic devices and organic solar cells. Here, we demonstrate application of chemical vapor deposited (CVD) graphene films as transparent electrode for organic solar cells. Large area graphene films are deposited by control pyrolysis of botanical derivative camphor (C 10H16O) and transparent electrode were fabricated by direct synthesis or transfer process. Raman spectroscopy and transmission electron microcopy studies are used to characterize the synthesized graphene based materials. Direct synthesized and transferred graphene films on glass or plastic substrates show very good optical transparency, electrical conductivity and mechanical stability. P3HT:PCBM bulk heterojunction solar cells are fabricated successfully on graphene based transparent electrode and compared with ITO based device. The dark light characteristic shows very good rectification with minimum leakage current. Under illumination of light the device shows very good open circuit voltage, short circuit current density and conversion efficiency.
AB - Indium tin oxide (ITO) and related oxide based materials have been widely used as transparent electrode in optoelectronic devices and organic solar cells. Here, we demonstrate application of chemical vapor deposited (CVD) graphene films as transparent electrode for organic solar cells. Large area graphene films are deposited by control pyrolysis of botanical derivative camphor (C 10H16O) and transparent electrode were fabricated by direct synthesis or transfer process. Raman spectroscopy and transmission electron microcopy studies are used to characterize the synthesized graphene based materials. Direct synthesized and transferred graphene films on glass or plastic substrates show very good optical transparency, electrical conductivity and mechanical stability. P3HT:PCBM bulk heterojunction solar cells are fabricated successfully on graphene based transparent electrode and compared with ITO based device. The dark light characteristic shows very good rectification with minimum leakage current. Under illumination of light the device shows very good open circuit voltage, short circuit current density and conversion efficiency.
KW - CVD graphene
KW - organic solar cells
KW - transparent electrode
UR - http://www.scopus.com/inward/record.url?scp=84869439291&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84869439291&partnerID=8YFLogxK
U2 - 10.1109/PVSC.2012.6318244
DO - 10.1109/PVSC.2012.6318244
M3 - Conference contribution
AN - SCOPUS:84869439291
SN - 9781467300643
T3 - Conference Record of the IEEE Photovoltaic Specialists Conference
SP - 3137
EP - 3141
BT - Program - 38th IEEE Photovoltaic Specialists Conference, PVSC 2012
T2 - 38th IEEE Photovoltaic Specialists Conference, PVSC 2012
Y2 - 3 June 2012 through 8 June 2012
ER -