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Title: Lapped substrate for enhanced backsurface reflectivity in a thermophotovoltaic energy conversion system

Abstract

A method is described for fabricating a thermophotovoltaic energy conversion cell including a thin semiconductor wafer substrate having a thickness ({beta}) calculated to decrease the free carrier absorption on a heavily doped substrate; wherein the top surface of the semiconductor wafer substrate is provided with a thermophotovoltaic device, a metallized grid and optionally an antireflective (AR) overcoating; and, the bottom surface (10 ft) of the semiconductor wafer substrate is provided with a highly reflecting coating which may comprise a metal coating or a combined dielectric/metal coating.

Inventors:
; ; ;
Publication Date:
Research Org.:
KAPL Inc., Schenectady, NY (United States)
Sponsoring Org.:
USDOE Assistant Secretary for Nuclear Energy, Washington, DC (United States)
OSTI Identifier:
663496
Patent Number(s):
PATENTS-US-A8740517
Application Number:
ON: DE98007406; PAN: 8-740,517; TRN: AHC29818%%333
Assignee:
US Dept. of Energy, Washington, DC (United States)
DOE Contract Number:  
AC12-76SN00052
Resource Type:
Patent Application
Resource Relation:
Other Information: PBD: 1996
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; THERMOPHOTOVOLTAIC CONVERTERS; FABRICATION; SUBSTRATES; ANTIREFLECTION COATINGS; REFLECTIVE COATINGS; GALLIUM ARSENIDES

Citation Formats

Baldasaro, P F, Brown, E J, Charache, G W, and DePoy, D M. Lapped substrate for enhanced backsurface reflectivity in a thermophotovoltaic energy conversion system. United States: N. p., 1996. Web.
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Baldasaro, P F, Brown, E J, Charache, G W, & DePoy, D M. Lapped substrate for enhanced backsurface reflectivity in a thermophotovoltaic energy conversion system. United States.
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Baldasaro, P F, Brown, E J, Charache, G W, and DePoy, D M. 1996. "Lapped substrate for enhanced backsurface reflectivity in a thermophotovoltaic energy conversion system". United States. https://www.osti.gov/servlets/purl/663496.
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@article{osti_663496,
title = {Lapped substrate for enhanced backsurface reflectivity in a thermophotovoltaic energy conversion system},
author = {Baldasaro, P F and Brown, E J and Charache, G W and DePoy, D M},
abstractNote = {A method is described for fabricating a thermophotovoltaic energy conversion cell including a thin semiconductor wafer substrate having a thickness ({beta}) calculated to decrease the free carrier absorption on a heavily doped substrate; wherein the top surface of the semiconductor wafer substrate is provided with a thermophotovoltaic device, a metallized grid and optionally an antireflective (AR) overcoating; and, the bottom surface (10 ft) of the semiconductor wafer substrate is provided with a highly reflecting coating which may comprise a metal coating or a combined dielectric/metal coating.},
doi = {},
url = {https://www.osti.gov/biblio/663496}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {12}
}
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Patent Application:
View Patent Application (0.58 MB)
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