Photovoltaic Properties in Interpenetrating Heterojunction Organic Solar Cells Utilizing MoO3 and ZnO Charge Transport Buffer Layers

Materials

Tetsuro Hori²  Hiroki Moritou²  Naoki Fukuoka²  Junki Sakamoto²  Akihiko Fujii¹ 

[1] id="af1-materials-03-04915">Division of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Jap

关键词: organic solar cells;    interpenetrating heterojunction;    buffer layers;    molybdenum trioxide;    zinc oxide;   

DOI  :  10.3390/ma3114915

来源: mdpi

【 摘 要 】

Organic thin-film solar cells with a conducting polymer (CP)/fullerene (C₆₀) interpenetrating heterojunction structure, fabricated by spin-coating a CP onto a C₆₀ deposit thin film, have been investigated and demonstrated to have high efficiency. The photovoltaic properties of solar cells with a structure of indium-tin-oxide/C₆₀/poly(3-hexylthiophene) (PAT6)/Au have been improved by the insertion of molybdenum trioxide (VI) (MoO₃) and zinc oxide charge transport buffer layers. The enhanced photovoltaic properties have been discussed, taking into consideration the ground-state charge transfer between PAT6 and MoO₃ by measurement of the differential absorption spectra and the suppressed contact resistance at the interface between the organic and buffer layers.

【 授权许可】

CC BY   
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