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Efficient Bulk Heterojunction Photovoltaic Cells using Sublimable Transition Metal Complex as Photosensitizers

Published online by Cambridge University Press:  01 February 2011

Hei Ling Wong ,
Kitty Ka Yan Man ,
Wai Kin Chan ,
Chung Yin Kwong  and
Aleksandra B. Djurišić
Hei Ling Wong
Affiliation:
Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong
Kitty Ka Yan Man
Affiliation:
Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong
Wai Kin Chan
Affiliation:
Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong
Chung Yin Kwong
Affiliation:
Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong
Aleksandra B. Djurišić
Affiliation:
Department of Physics, The University of Hong Kong, Pokfulam Road, Hong Kong
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Abstract

Multilayer bulk heterojunction photovoltaic cells using chlorotricarbonyl rhenium (I) bis(phenylimino)acenaphthene (Re-DIAN) complex as photosensitizer were studied. The complex is sublimable, has lower band gap, good thermal stability and good processibility. It has broad absorption in UV-visible region. Therefore, Re-DIAN exhibits good photosensitising property for photovoltaic cells. Multilayer bulk heterojunction photovoltaic cells with simple structures were fabricated base on Re-DIAN complex. The active layer consists of a blend of Re-DIAN and fullerene that were co-deposited in the same layer by vacuum deposition. The photovoltaic properties of the devices were studied by irradiaton under AM1.5 simulated solar light. The effects of changing the co-deposition film thickness, amount of Re-DIAN photosensitizer, and hole transporting materials were studied.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 836: Symposium L – Materials for Photovoltaics , 2004 , L5.19
Copyright
Copyright © Materials Research Society 2005

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References

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