We 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 vacuum deposited layer. Compared to the PbS-only PV cell, the heterojunction device has improved the power conversion efficiency from 1.6% to 2.2% under 1 sun of simulated Air Mass 1.5 Global (AM 1.5G) irradiation. The layer effectively prevents exciton quenching at the NC/metal interface, as evidenced by a significant improvement in fill factor of the heterojunction devices.
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Research Article| November 05 2009
Highly efficient cross-linked PbS nanocrystal/ hybrid heterojunction photovoltaic cells
S. W. Tsang;
S. W. Tsang, H. Fu, R. Wang, J. Lu, K. Yu, Y. Tao; Highly efficient cross-linked PbS nanocrystal/ hybrid heterojunction photovoltaic cells. Appl. Phys. Lett. 2 November 2009; 95 (18): 183505. https://doi.org/10.1063/1.3257729
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