NDLI: Integrated bandpass filter contacts for radioisotope thermophotovoltaic cells

Content Provider	IEEE Xplore Digital Library
Author	Horne, W.E. Morgan, M.D. Sundaram, V.S.
Copyright Year	1996
Description	Author affiliation: EDTEK Inc., Kent, WA, USA (Horne, W.E.)
Abstract	Smaller spacecraft deployed on deep space missions will require improved electrical power generation efficiency above that which is presently available from radioisotope powered thermoelectric devices. Low bandgap thermophotovoltaic (TPV) devices, when used in conjunction with spectrally modified or filtered emitters, offer the promise of 4 to 5 times efficiency improvement. Integrating spectral filters into PV cell contacts can further improve the efficiency of TPV systems. An inductively resonant mesh metal film filter deposited directly on the surface of the TPV cell can serve as both a bandpass filter to modify the emitted radiant energy spectrum and as a shadowless, low-resistivity electrical contact to the cell. By significantly reducing traditional grid shadow losses, junction sheet resistance losses, and grid series resistance losses, the overall TPV system efficiency can be improved by 10% to 16% depending on the TPV cell operating current density and design geometry. These innovative contacts become even more beneficial in Earth based applications where very high operating current densities are required by economics. With the availability of these low-loss TPV devices at appropriate unit costs, they can find uses in such commercial TPV technologies as self-powered gas furnaces and water heaters, and Earth-based solar concentrator TPV systems.
Starting Page	995
Ending Page	1000
File Size	707155
Page Count	6
File Format	PDF
ISBN	0780335473
ISSN	10893547
DOI	10.1109/IECEC.1996.553834
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-08-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Band pass filters Radioactive materials Contacts Power generation economics Electric resistance Current density Water heating Space vehicles Space missions Power generation
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in