Zobrazeno 1 - 10
of 95
pro vyhledávání: '"Nasser H. Karam"'
Autor:
Geoffrey K. Bradshaw, C. Zachary Carlin, Kenneth M. Edmondson, W. Hong, Joshua P. Samberg, Nasser H. Karam, Christopher M. Fetzer, Peter C. Colter, Salah M. Bedair
Publikováno v:
IEEE Journal of Photovoltaics. 4:614-619
Lattice-matched multiple quantum wells (MQWs) consisting of InxGa1-xAs wells with very thin GaAs0.2P0.8 barriers have been incorporated into a GaInP/GaAs tandem solar cell. InGaAs/GaAsP MQWs increase the short-circuit current of the GaAs cell by exte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9e6fd3f295f1ee20d9699845e676817
https://doi.org/10.1109/jphotov.2013.2294750
https://doi.org/10.1109/jphotov.2013.2294750
Autor:
W. Hong, A. Zakaria, Richard R. King, Philip T. Chiu, D.C. Law, Shoghig Mesropian, Joseph Boisvert, Robyn L. Woo, Nasser H. Karam, D. Bhusari, S. B. Singer
Publikováno v:
IEEE Journal of Photovoltaics. 4:493-497
Spectrolab has demonstrated a 2.2/1.7/1.4/1.05/0.73 eV 5J cell with an efficiency of 37.8% under 1 sun AM1.5G spectrum and 35.1% efficiency for 1 sun AM0. The top three junctions and bottom two junctions were grown on GaAs and InP substrates, respect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36586de5fc08f68638f659d2a3f4ff55
https://doi.org/10.1109/jphotov.2013.2279336
https://doi.org/10.1109/jphotov.2013.2279336
Autor:
Eric M. Rehder, Nasser H. Karam, Philip T. Chiu, Christopher M. Fetzer, Ken Edmondson, Richard R. King
Publikováno v:
ECS Transactions. 50:287-295
Group-IV solar cells have great value for increasing conversion efficiency when integrated with III-V subcells in multijunction solar cells, as in today's 3-junction GaInP/ GaInAs/ Ge concentrator cells that have demonstrated over 40% efficiency. New
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de18227d471877d6042fc2f457d50245
https://doi.org/10.1149/05009.0287ecst
https://doi.org/10.1149/05009.0287ecst
Autor:
Kenneth M. Edmondson, D. Bhusari, H.L. Cotal, J.H. Ermer, D.C. Law, D. Larrabee, Richard R. King, Nasser H. Karam, Christopher M. Fetzer, R. K. Jones, E. Rehder, X.-Q. Liu
Publikováno v:
Progress in Photovoltaics: Research and Applications. 20:801-815
Multijunction III-V concentrator cells of several different types have demonstrated solar conversion efficiency over 40% since 2006, and represent the only third-generation photovoltaic technology to enter commercial power generation markets so far.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5bdf5f5fe823931e0f452604023ef218
https://doi.org/10.1002/pip.1255
https://doi.org/10.1002/pip.1255
Autor:
Nasser H. Karam, Christopher M. Fetzer, Peter Hebert, O. Al-Taher, D. Bhusari, J.H. Ermer, R. K. Jones, R. Brandt, P. Pien, Richard R. King, Geoffrey S. Kinsey
Publikováno v:
IEEE Journal of Photovoltaics. 2:209-213
Multijunction solar cells based on III-V semiconductors, having recently demonstrated 43.5%, remain the world's most efficient solar cells, and the preferred technology in point-focus and dense-array concentrator photovoltaic (CPV) system architectur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8fa27eb567950e54511f66520b80977
https://doi.org/10.1109/jphotov.2011.2180893
https://doi.org/10.1109/jphotov.2011.2180893
Autor:
Christopher M. Fetzer, D. Larrabee, D. Bhusari, D.C. Law, Richard R. King, Andreea Boca, Nasser H. Karam, W. Hong, X.-Q. Liu
Publikováno v:
Progress in Photovoltaics: Research and Applications. 19:797-812
The potential for new 4-, 5-, and 6-junction solar cell architectures to reach 50% efficiency is highly leveraging for the economics of concentrator photovoltaic (CPV) systems.The theoretical performance of such next-generation cells, and experimenta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::336c596efe0f1941ecec752a95c0b97d
https://doi.org/10.1002/pip.1044
https://doi.org/10.1002/pip.1044
Autor:
Melissa Archer, Hojun Yoon, Christopher M. Fetzer, Shoghig Mesropian, D. Bhusari, Kenneth M. Edmondson, Richard R. King, J. T. Yen, T. Isshiki, Daniel C. Law, Nasser H. Karam, R. A. Sherif, Andreea Boca, Harry A. Atwater, Moran Haddad
Publikováno v:
Solar Energy Materials and Solar Cells. 94:1314-1318
Future terrestrial concentrator cells will likely feature four or more junctions. The better division of the solar spectrum and the lower current densities in these new multijunction cells reduce the resistive power loss (I^(2)R) and provide a signif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3fb163301adc0abc356f3821afb4b2be
https://doi.org/10.1016/j.solmat.2008.07.014
https://doi.org/10.1016/j.solmat.2008.07.014
Autor:
Christopher M. Fetzer, Richard R. King, Joseph Boisvert, Geoffrey S. Kinsey, Hojun Yoon, Peter Hebert, H.L. Cotal, Nasser H. Karam
Publikováno v:
Energy Environ. Sci.. 2:174-192
Concerns about the changing environment and fossil fuel depletion have prompted much controversy and scrutiny. One way to address these issues is to use concentrating photovoltaics (CPV) as an alternate source for energy production. Multijunction sol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::737f4534e1d112e57bcec60188fa46eb
https://doi.org/10.1039/b809257e
https://doi.org/10.1039/b809257e
Autor:
Richard R. King, Nasser H. Karam, Kenneth M. Edmondson, Hojun Yoon, R. A. Sherif, Dimitri D. Krut, Christopher M. Fetzer, Daniel C. Law, James H. Ermer, Geoffrey S. Kinsey
Publikováno v:
Advances in OptoElectronics, Vol 2007 (2007)
The high efficiency of multijunction concentrator cells has the potential to revolutionize the cost structure of photovoltaic electricity generation. Advances in the design of metamorphic subcells to reduce carrier recombination and increase voltage,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f21cdd3cc72582ff2dda066c3b25787
https://doi.org/10.1155/2007/29523
https://doi.org/10.1155/2007/29523
Autor:
A. Zakaria, S. B. Singer, X.-Q. Liu, Philip T. Chiu, Nasser H. Karam, D. Bhusari, Shoghig Mesropian, D.C. Law
Publikováno v:
2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC).
Spectrolab has achieved a record 36% 5J direct bonded cell, measured under an AM0 space spectrum. The increase in efficiency over previous high performance 5J cells was achieved via voltage improvements to subcell 2 and 4 of the multijunction stack.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e76a9366738407ef070249d0af0be01
https://doi.org/10.1109/pvsc.2015.7355673
https://doi.org/10.1109/pvsc.2015.7355673