Photovoltaic and thermophotovoltaic devices with quantum...

Details Photovoltaic and thermophotovoltaic devices with quantum... Photovoltaic and thermophotovoltaic devices with quantum...

2007-04-10

2007-04-10

Nguyen, Nam (Department: 1753)

Batteries: thermoelectric and photoelectric

Photoelectric

Cells

C136S262000

Reexamination Certificate

active

10426802

ABSTRACT:
A photovoltaic or thermophotovoltaic device includes a diode formed by p-type material and n-type material joined at a p-n junction and including a depletion region adjacent to said p-n junction, and a quantum barrier disposed near or in the depletion region of the p-n junction so as to decrease device reverse saturation current density while maintaining device short circuit current density. In one embodiment, the quantum barrier is disposed on the n-type material side of the p-n junction and decreases the reverse saturation current density due to electrons while in another, the barrier is disposed on the p-type material side of the p-n junction and decreases the reverse saturation current density due to holes. In another embodiment, both types of quantum barriers are used.

REFERENCES:
patent: 4718947 (1988-01-01), Arya
patent: 5769964 (1998-06-01), Charache et al.
patent: 6150604 (2000-11-01), Freundlich et al.

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