Benzophosphole Oxide and Sulfide for Thermally Stable Cathode Buffer Layers in Organic Thin-Film Photovoltaic Devices

Don′t touch! Benzophosphole derivatives, which have a high glass transition temperature and resistance to crystallization, are shown to be useful as cathode buffer materials for OPV devices. The benzophosphole‐based devices showed an improvement in power conversion efficiency by annealing, which can...

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Bibliographic Details
Published in:Chemistry, an Asian journal an Asian journal, 2010-06, Vol.5 (6), p.1294-1297
Main Authors: Tsuji, Hayato, Sato, Kosuke, Sato, Yoshiharu, Nakamura, Eiichi
Format: Article
Language:English
Subjects:
amorphous materials
buffer layer
charge carrier injection
heterocycles
solar cells
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Summary:Don′t touch! Benzophosphole derivatives, which have a high glass transition temperature and resistance to crystallization, are shown to be useful as cathode buffer materials for OPV devices. The benzophosphole‐based devices showed an improvement in power conversion efficiency by annealing, which can be ascribed to the decrease in the contact resistance between the buffer layer and the adjoining layers.
ISSN:1861-4728
1861-471X
DOI:10.1002/asia.201000093