UM
Highly efficient cross-linked PbS nanocrystal/C60 hybrid heterojunction photovoltaic cell
Tsang S.W.; Fu H.; Wang R.; Lu J.; Yu K.; Tao Y.
2010-05-05
Source PublicationINEC 2010 - 2010 3rd International Nanoelectronics Conference, Proceedings
Pages608-609
AbstractWe present a highly efficient hybrid heterojunction photovoltaic (PV) cell with a colloidal inorganic nanocrystal (NC) electron donor and an organic electron acceptor. The heterojunction is formed by a thin film of cross-linked PbS NCs and a C layer. Compared to the PbS-only PV cell, the heterojunction device has improved the power conversion efficient (PCE) from 1.6 % to 2.2 %. The C layer effectively prevents the excitons from quenching at the NC/metal interface, which is demonstrated with a significant improvement of the fillfactor (FF) of the heterojunction devices. In addition, a larger open-circuit voltage (VOC) in the heterojunction devices suggests that the electrons in C can readily transfer to the PbS NCs through the NC surface linkers. This is supported by the measured optical absorption spectrum of the hybrid system. ©2010 IEEE.
DOI10.1109/INEC.2010.5424746
URLView the original
Language英語
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Document TypeConference paper
CollectionUniversity of Macau
AffiliationNational Research Council Canada
Recommended Citation
GB/T 7714
Tsang S.W.,Fu H.,Wang R.,et al. Highly efficient cross-linked PbS nanocrystal/C60 hybrid heterojunction photovoltaic cell[C],2010:608-609.
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