Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Joseph Boisvert"'
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:
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
Publikováno v:
SPIE Proceedings.
Photon counting imaging applications requires low noise from both detector and readout integrated circuit (ROIC) arrays. In order to retain the photon-counting-level sensitivity, a long integration time has to be employed and the dark current has to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ebbffef353af2f6a33161969f95cf8d
https://doi.org/10.1117/12.2053999
https://doi.org/10.1117/12.2053999
Autor:
Nasser H. Karam, D. Bhusari, D.C. Law, Shoghig Mesropian, Philip T. Chiu, A. Zakaria, Joseph Boisvert, Robyn L. Woo, S. B. Singer, W. Hong, Richard R. King
Publikováno v:
2014 IEEE 40th Photovoltaic Specialist Conference (PVSC).
Spectrolab has fabricated a direct semiconductor bonded space solar cell with an efficiency of 35.8% under the AM0 space spectrum. Using a similar technology, Spectrolab has achieved a 5-junction (5J) direct bonded terrestrial cell with a record effi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::483d401281bbb33fc776a4a2681d4e88
https://doi.org/10.1109/pvsc.2014.6924957
https://doi.org/10.1109/pvsc.2014.6924957
Autor:
Bongim Jun, Philip T. Chiu, Nasser H. Karam, Kenneth M. Edmondson, P. Pien, S. Wierman, Joseph Boisvert, Shoghig Mesropian, X.-Q. Liu, E. Rehder
Publikováno v:
2014 IEEE 40th Photovoltaic Specialist Conference (PVSC).
Inverted metamorphic (IMM) solar cells are being pursued for space applications. This work examines their extended performance under key environmental conditions. Electron irradiation with 1 MeV electrons found 81% of the power remained after exposur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ca707d13b502cc3638a8145e37e8c23
https://doi.org/10.1109/pvsc.2014.6924887
https://doi.org/10.1109/pvsc.2014.6924887
Autor:
Philip T. Chiu, D.D. Krut, X.-Q. Liu, S. B. Singer, A. Zakaria, Kenneth M. Edmondson, W. Hong, Richard R. King, E. Rehder, Bongim Jun, Daniel C. Law, D. Bhusari, Nasser H. Karam, S. K. Sharma, Robyn L. Woo, Joseph Boisvert, Christopher M. Fetzer, Shoghig Mesropian
Publikováno v:
SPIE Proceedings.
Recent progress in III-V multijunction sp ace solar cell has led to Spectrolabs GaIn P/GaAs/Ge triple-junction, XTJ, cells with average 1-sun efficiency of 29% (AM0, 28oC) for cell size ranging from 59 to 72-cm 2 . High-efficiency inverted metamorp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f36cb5dcd1c94888edc0a999184644f2
https://doi.org/10.1117/12.2026756
https://doi.org/10.1117/12.2026756
Autor:
D.D. Krut, W. Hong, S. Wierman, Christopher M. Fetzer, E. Rehder, S. B. Singer, Shoghig Mesropian, X.-Q. Liu, Richard R. King, H.L. Cotal, D. Bhusari, Kenneth M. Edmondson, Philip T. Chiu, Robyn L. Woo, Joseph Boisvert, D.C. Law, Nasser H. Karam
Publikováno v:
2013 IEEE 39th Photovoltaic Specialists Conference (PVSC).
High efficiency Inverted Metamorphic (IMM) multi-junction solar cells have been under development at Spectrolab for use in space and near space applications This paper reviews the present state-of-the-art of this technology at Spectrolab with an emph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8024f1f3a854368a4247baccb7c19bde
https://doi.org/10.1109/pvsc.2013.6745051
https://doi.org/10.1109/pvsc.2013.6745051
Autor:
Ping Yuan, Michael A. Krainak, James Chang, Zhiwen Lu, Wei Lu, Xiaoli Sun, Joe C. Campbell, Rengarajan Sudharsanan, Paul McDonald, Qiugui Zhou, Joseph Boisvert, Wenlu Sun, Guangning Yang, Xiaogang Bai
Publikováno v:
SPIE Proceedings.
There is a strong interest in developing sensitive Short Wavelength Infrared (SWIR) avalanche photodiodes (APDs) for applications like eye safe laser ranging and robotic vision. The excess noise associated with the avalanche process is critical in di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7512202721cd1948b2f13b5f784ccfca
https://doi.org/10.1117/12.919397
https://doi.org/10.1117/12.919397
Autor:
Robyn L. Woo, Xiaogang Bai, Eduaro Labios, James Chang, Rengarajan Sudharsanan, Ping Yuan, Michael A. Krainak, Dion McIntosh, Paul McDonald, Xiaoli Sun, Guangning Yang, Joe C. Campbell, Joseph Boisvert, Wei Lu, Qiugui Zhou
Publikováno v:
SPIE Proceedings.
Future NASA light detection and ranging (LIDAR) mapping systems require multi-channel receivers with high sensitivity and bandwidth operating at 1-1.5 mm wavelengths. One of the ways to improve the system performance is to improve the sensitivity of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d02fc577839aefbf50d0ac27ffc5751
https://doi.org/10.1117/12.919434
https://doi.org/10.1117/12.919434
Autor:
Xiaogang Bai, Guangning Yang, Robyn L. Woo, Michael A. Krainak, Joseph Boisvert, Ping Yuan, Derek F. Sykora, Rengarajan Sudharsanan, Kam Wan, Xiaoli Sun, Paul McDonald, Verle W. Aebi, Wei Lu, Kenneth A. Costello
Publikováno v:
SPIE Proceedings.
Topographic mapping lidar instruments must be able to detect extremely weak laser return signals from high altitudes including orbital distance. The signals have a wide dynamic range caused by the variability in atmospheric transmission and surface r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8c559bb020490dde12462f0e21af432
https://doi.org/10.1117/12.905149
https://doi.org/10.1117/12.905149