Zobrazeno 1 - 10
of 13
pro vyhledávání: '"AnnaMaria T. Pal"'
Publikováno v:
2020 47th IEEE Photovoltaic Specialists Conference (PVSC).
We investigated the effects of 1 MeV electron irradiation on uncoated metamorphic −1.7eV GaAsP solar cells on GaP and on GaP/Si. Effects of junction polarity, base thickness, and threading dislocation density on radiation hardness were investigated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f47b358da7c0eff4efa382b6266916b3
https://doi.org/10.1109/pvsc45281.2020.9300409
https://doi.org/10.1109/pvsc45281.2020.9300409
Publikováno v:
2019 IEEE 46th Photovoltaic Specialists Conference (PVSC).
Here we investigate the effects of erosion and weathering that occur on epitaxial lift off triple-junction cover-glass interconnected cells (CICs) after exposure to Mars dust storm conditions. To replicate the dust impingement, test coupons were sand
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb663935ccbca7dd21e1f33bbcd3cf63
https://doi.org/10.1109/pvsc40753.2019.8980876
https://doi.org/10.1109/pvsc40753.2019.8980876
Publikováno v:
Solar Energy Materials and Solar Cells. 221:110880
We explored the utility of ground-based highly accelerated life testing (HALT) on triple-junction coverglass interconnected cells (CICs) after exposure to Mars dust storm conditions. The CICs comprised the triple junction solar cells, a silicone enca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d61c81392c1062b993c38ff1b3a2032
https://doi.org/10.1016/j.solmat.2020.110880
https://doi.org/10.1016/j.solmat.2020.110880
Publikováno v:
Materials & Design. 22:591-599
As a result of their electron structure, rare earth ions in crystals at high temperature emit radiation in several narrow bands rather than in a continuous blackbody manner. This study presents a spectral emittance model for films and cylinders of ra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac3f2b690c36334e6b073634d40aa7d7
https://doi.org/10.1016/s0261-3069(01)00021-8
https://doi.org/10.1016/s0261-3069(01)00021-8
Publikováno v:
Journal of the European Ceramic Society. 19:2551-2562
As a result of their electron structure, rare earth ions in crystals at high temperature emit radiation in several narrow bands rather than in a continuous blackbody manner. This study develops a spectral emittance model for films of rare earth conta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54fc8fdcd690e5e082efabf0c2142dc9
https://doi.org/10.1016/s0955-2219(99)00096-5
https://doi.org/10.1016/s0955-2219(99)00096-5
Publikováno v:
2009 34th IEEE Photovoltaic Specialists Conference (PVSC).
Amorphous germanium (Ge) is RF sputtered onto 25 µm thick molybdenum (Mo) foils and recrystallized at 675 °C under an AsH 3 environment. After annealing, the Ge is polycrystalline with grain boundary regions that range from 1 um2 to 0.5 cm2. The po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8f4f4a96d12303655b22a6b904b8c2b
https://doi.org/10.1109/pvsc.2009.5411695
https://doi.org/10.1109/pvsc.2009.5411695
Autor:
Les Fritzemeier, Christopher G. Bailey, Eric B. Clark, Seth M. Hubbard, Ryne Raffaelle, Ali Sayir, AnnaMaria T. Pal, Jeremiah S. McNatt, William Maurer
Publikováno v:
6th International Energy Conversion Engineering Conference (IECEC).
Presented here is the recent progress of the NASA Glenn Research Center OMVPE group's efforts in the development of high efficiency thin-film polycrystalline III-V photovoltaics on optimum substrates. By using bulk polycrystalline germanium (Ge) film
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31bf87af3fab0c6ccae9db368e013366
https://doi.org/10.2514/6.2008-5756
https://doi.org/10.2514/6.2008-5756
Autor:
Steven A. Ringel, Robert J. Walters, Eugene A. Fitzgerald, Phillip P. Jenkins, David M. Wilt, AnnaMaria T. Pal
Publikováno v:
2008 33rd IEEE Photovolatic Specialists Conference.
GaAs on Si (GaAs/Si) solar cells with AM0 efficiencies in excess of 17% have been demonstrated using Si substrates coated with a step-graded buffer of SixGe1-x alloys graded to 100% Ge. A year of LEO testing of this technology aboard Materials Intern
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::741ce60d6564160049d55b696e084761
https://doi.org/10.1109/pvsc.2008.4922860
https://doi.org/10.1109/pvsc.2008.4922860
Autor:
Norman F. Prokop, Eugene A. Fitzgerald, Steven A. Ringel, D.A. Scheiman, B. D. McElroy, M.A. Smith, AnnaMaria T. Pal, William Maurer, Phillip P. Jenkins, David M. Wilt, Cl. Andre
Publikováno v:
Conference Record of the Thirty-first IEEE Photovoltaic Specialists Conference, 2005..
GaAs on Si (GaAs/Si) solar cells grown on Si substrates coated with a step graded buffer of Si/sub x/Ge/sub 1-x/ alloys graded to 100% Ge have demonstrated AM0 efficiencies in excess of 17%. Recently, 4 cm/sup 2/ devices were developed in preparation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab532b9a4c163786d7e4206c0593d93f
https://doi.org/10.1109/pvsc.2005.1488195
https://doi.org/10.1109/pvsc.2005.1488195
Publikováno v:
Conference Record of the Thirty-first IEEE Photovoltaic Specialists Conference, 2005..
High performance solar cells with capabilities covering a broad range of mission parameters are of great interest to the space photovoltaic community. Current areas of interest include improving efficiency of multi-junction cells by adjusting bandgap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7883f3a5fc909b3a3a223fb906e200f
https://doi.org/10.1109/pvsc.2005.1488235
https://doi.org/10.1109/pvsc.2005.1488235