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

Patent Application ·
OSTI ID:663496

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.

Research Organization:
KAPL Inc., Schenectady, NY (United States)
Sponsoring Organization:
USDOE Assistant Secretary for Nuclear Energy, Washington, DC (United States)
DOE Contract Number:
AC12-76SN00052
Assignee:
US Dept. of Energy, Washington, DC (United States)
Patent Number(s):
PATENTS-US-A8740517
Application Number:
ON: DE98007406; PAN: 8-740,517; TRN: AHC29818%%333
OSTI ID:
663496
Resource Relation:
Other Information: PBD: 1996
Country of Publication:
United States
Language:
English