Heterojunction thermophotovoltaic cell

Details Heterojunction thermophotovoltaic cell Heterojunction thermophotovoltaic cell

1998-11-12

2000-10-17

Codd, Bernard

Batteries: thermoelectric and photoelectric

Photoelectric

Cells

H01L 31109

Patent

active

061335207

ABSTRACT:
A thermophotovoltaic cell and diode photodetector having improved open circuit voltage and high internal efficiency includes a semiconductor body having regions of n-type conductivity and p-type conductivity adjacent each other to form a p-n junction therebetween. The p-type region is of a material having a band gap which will absorb black-body radiation and the n-type region is of a material having a wider band gap than that of the p-type region. This forms a heterojunction between the two regions. The region of n-type region has a doping level which is an order of magnitude less than the doping level in the p-type region. This structure forms a cell having a space charge region in the n-type region.

REFERENCES:
patent: 5322573 (1994-06-01), Jain et al.
patent: 5342451 (1994-08-01), Virshup
patent: 5769964 (1998-06-01), Charache et al.
patent: 5800630 (1998-09-01), Vilela et al.

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