Batteries: thermoelectric and photoelectric – Photoelectric – Cells
Patent
1996-07-11
1997-12-23
Weisstuch, Aaron
Batteries: thermoelectric and photoelectric
Photoelectric
Cells
136257, 359359, 359590, H02N 600, G02B 528
Patent
active
057003327
ABSTRACT:
A filter system to transmit short wavelength radiation and reflect long wavelength radiation for a thermophotovoltaic energy conversion cell comprises an optically transparent substrate segregation layer with at least one coherent wavelength in optical thickness; a dielectric interference filter deposited on one side of the substrate segregation layer, the interference filter being disposed toward the source of radiation, the interference filter including a plurality of alternating layers of high and low optical index materials adapted to change from transmitting to reflecting at a nominal wavelength .lambda..sub.IF approximately equal to the bandgap wavelength .lambda..sub.g of the thermophotovoltaic cell, the interference filter being adapted to transmit incident radiation from about 0.5.lambda..sub.IF to .lambda..sub.IF and reflect from .lambda..sub.IF to about 2.lambda..sub.IF ; and a high mobility plasma filter deposited on the opposite side of the substrate segregation layer, the plasma filter being adapted to start to become reflecting at a wavelength of about 1.5.lambda..sub.IF.
REFERENCES:
patent: 2668478 (1954-02-01), Schroder
patent: 3247392 (1966-04-01), Thelen
patent: 3331707 (1967-07-01), Werth
patent: 3591420 (1971-07-01), Streed
patent: 3751303 (1973-08-01), Kittl
patent: 4017758 (1977-04-01), Almer et al.
patent: 4331829 (1982-05-01), Palazzetti et al.
patent: 4584428 (1986-04-01), Gaarlick
patent: 4764104 (1988-08-01), Nelson
patent: 5138485 (1992-08-01), Ishida et al.
patent: 5304255 (1994-04-01), Li et al.
patent: 5403405 (1995-04-01), Fraas et al.
patent: 5611870 (1997-03-01), Horne et al.
patent: 5625485 (1997-04-01), Bolger
H. Hofler et al, Solar Cells, vol. 10, pp. 273-286 (Dec. 1983).
P.F. Baldasaro, E.J. Brown, D.M. DePoy, B.C. Campbell and J.R. Parrington, Experimental Assessment of Low Temperature Voltaic Energy Conversion, First NREL Conference on Thermophotovoltaic Generation of Electricity, Jul. 24-27, 1994.
H.A. MacLeod, Thin Film Optical Filters, McGraw-Hill Publishing Co., 1969, pp. 101-107, 111-124, 143-153.
C.M. Lampert, Heat Mirror Coatings for Energy Conserving Windows, Solar Energy Materials, vol. 6, 1981, pp. 1-41.
G.W. Charache, D.M. DePoy, P.F. Baldasaro, and B.C. Campbell Thermophotovoltaic Devices Utilizing a Back Surface Reflector for Spectral Control, The American Institute of Physics(AIP) Conference Proceedings, vol. 358, p.339, Jul. 1995.
Baldasaro Paul F.
Brown Edward J.
Dziendziel Randolph J.
Caress Virginia B.
Gottlieb Paul A.
Moser William R.
The United States of America as represented by the United States
Weisstuch Aaron
LandOfFree
Segregated tandem filter for enhanced conversion efficiency in a does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Segregated tandem filter for enhanced conversion efficiency in a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Segregated tandem filter for enhanced conversion efficiency in a will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1799350