Batteries: thermoelectric and photoelectric – Photoelectric – Cells
Patent
1996-08-29
1998-05-19
Weisstuch, Aaron
Batteries: thermoelectric and photoelectric
Photoelectric
Cells
136253, 136259, 136262, 257436, 438 77, 438 87, H01L 3106, H01L 3118
Patent
active
057530505
ABSTRACT:
A thermophotovoltaic device and a method for making the thermophotovoltaic device. The device includes an n-type semiconductor material substrate having top and bottom surfaces, a tunnel junction formed on the top surface of the substrate, a region of active layers formed on top of the tunnel junction and a back surface reflector (BSR). The tunnel junction includes a layer of heavily doped n-type semiconductor material that is formed on the top surface of the substrate and a layer of heavily doped p-type semiconductor material formed on the n-type layer. An optional pseudomorphic layer can be formed between the n-type and p-type layers. A region of active layers is formed on top of the tunnel junction. This region includes a base layer of p-type semiconductor material and an emitter layer of n-type semiconductor material. An optional front surface window layer can be formed on top of the emitter layer. An optional interference filter can be formed on top of the emitter layer or the front surface window layer when it is used.
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Baldasaro Paul F.
Charache Greg W.
Egley James L.
Caress Virginia B.
Gottlieb Paul A.
Moser William R.
The United States of America as represented by the Department of
Weisstuch Aaron
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