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Issue 3, 2012
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High efficiency ultraviolet photovoltaic cells based on ZnO–C60 core–shell QDs with organic–inorganic multilayer structure

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Abstract

We report on the successful conjugation of C60 molecules on the surface of ZnO quantum dots (QDs) and their application in multi-layer structured ultraviolet (UV) photovoltaic (PV) devices. In situgrowth of C60 on the surface of ZnO QDs with a core–shell structure was realized via a mild solution-process method, which resulted in an improvement in photo-induced charge separation and transport of carriers to the collecting electrodes in a fabricated device. The conjugation of the C60 with ZnO QDs leads to a PL quenching of about 99.8%, which can be attributed to an efficient transfer of photo-induced electrons from the ZnO QDs to the C60 through a Zn–O–C chemical bonding. UV PV cells with ZnO–C60 core–shell QDs as an active layer and fabricated through an all layer simple chemical method exhibit high power conversion efficiency as much as about 3.02%.

Graphical abstract: High efficiency ultraviolet photovoltaic cells based on ZnO–C60 core–shell QDs with organic–inorganic multilayer structure

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Publication details

The article was received on 14 Sep 2011, accepted on 27 Oct 2011 and first published on 17 Nov 2011


Article type: Communication
DOI: 10.1039/C1JM14555J
Citation: J. Mater. Chem., 2012,22, 816-819
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    High efficiency ultraviolet photovoltaic cells based on ZnO–C60 core–shell QDs with organic–inorganic multilayer structure

    D. I. Son, B. W. Kwon, J. D. Yang, D. H. Park, B. Angadi and W. K. Choi, J. Mater. Chem., 2012, 22, 816
    DOI: 10.1039/C1JM14555J

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