Schottky Solar Cells Based on Colloidal Nanocrystal Films

被引:818
作者
Luther, Joseph M. [1 ,2 ]
Law, Matt [1 ]
Beard, Matthew C. [1 ]
Song, Qing [1 ]
Reese, Matthew O. [1 ]
Ellingson, Randy J. [1 ]
Nozik, Arthur J. [1 ]
机构
[1] Natl Renewable Energy Lab, Golden, CO 80401 USA
[2] Colorado Sch Mines, Dept Phys, Golden, CO 80401 USA
关键词
D O I
10.1021/nl802476m
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We describe here a simple, all-inorganic metal/NC/metal sandwich photovoltaic (PV) cell that produces an exceptionally large short-circuit photocurrent (>21 mA cm(-2)) by way of a Schottky junction at the negative electrode. The PV cell consists of a PbSe NC film, deposited via layer-by-layer (LbL) dip coating that yields an EQE of 55-65% in the visible and up to 25% in the infrared region of the solar spectrum, with a spectrally corrected AM1.5G power conversion efficiency of 2.1%. This NC device produces one of the largest short-circuit currents of any nanostructured solar cell, without the need for sintering, superlattice order or separate phases for electron and hole transport.
引用
收藏
页码:3488 / 3492
页数:5
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