Improvement of Efficiency of Polymer Solar Cells with Soluble Fullerene Derivatives

Author

Lee, Ho-Jin ; Arai, Takayuki ; Takeuchi, Yasumasa ; Koide, Naoki ; Han, Liyuan ; Shimizu, Masafumi

Author_Institution

Int. Center for Mater. Res., Kawasaki

Volume

1

fYear

2006

fDate

38838

Firstpage

233

Lastpage

235

Abstract

Soluble fullerene derivatives, [6,6]-phenyl C₆₁ butyric acid hexyl ester (PCBH) and [6,6]-phenyl C₆₁ butyric acid dodecyl ester (PCBD), were synthesized, and current-voltage (I-V) characteristics of polymer solar cells using these fullerene derivatives were investigated. It is found that PCBH cells show higher short circuit current density (J_sc) than conventional [6,6]-phenyl C₆₁ butyric acid methyl ester (PCBM) cells. J_sc further increases with using high haze TCO substrates and thermal annealing. The efficiency of 3.3%, 3.8% (aperture illumination area were 1.00 cm₂ and 0.25 cm₂, respectively) were obtained. Finally the efficiency of 2.96% (aperture area was 1.001 cm₂) was confirmed by a public test center (AIST, JAPAN)

Keywords

annealing; current density; fullerene compounds; organic semiconductors; polymers; solar cells; TCO substrates; [6,6]-phenyl C₆₁ butyric acid dodecyl ester; [6,6]-phenyl C₆₁ butyric acid hexyl ester; [6,6]-phenyl C₆₁ butyric acid methyl ester cells; aperture illumination area; current-voltage characteristics; polymer solar cell efficiency; public test center; short circuit current density; soluble fullerene derivatives; thermal annealing; Apertures; Area measurement; Buffer layers; Electrons; Lighting; Photovoltaic cells; Photovoltaic systems; Polymers; Solar power generation; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Energy Conversion, Conference Record of the 2006 IEEE 4th World Conference on

Conference_Location

Waikoloa, HI

Print_ISBN

1-4244-0017-1

Electronic_ISBN

1-4244-0017-1

Type

conf

DOI

10.1109/WCPEC.2006.279432

Filename

4059605