Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Geoffrey K. Bradshaw"'
Autor:
Sang M. Han, Cayla Nelson, Geoffrey K. Bradshaw, David M. Wilt, Steven Whipple, Omar K. Abudayyeh
Publikováno v:
IEEE Journal of Photovoltaics. 9:1754-1758
Multiwalled carbon nanotubes are used to electromechanically reinforce metal gridlines and busbars on commercial triple-junction solar cells. For the reinforcement, we create a layer-by-layer microstructure which consists of electroplated silver, spr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e431b439ad9649f0f36767f9ecb4d360
https://doi.org/10.1109/jphotov.2019.2939096
https://doi.org/10.1109/jphotov.2019.2939096
Publikováno v:
Solar Energy Materials and Solar Cells. 182:136-141
In an effort to reduce the radiation degradation of triple-junction solar cells, imbedded photon management is investigated as a means for reducing the middle subcell thickness while maintaining output. The (In)GaAs subcells of the conventional latti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98f2f217b33bdae0b6df1a90b0edd5e1
https://doi.org/10.1016/j.solmat.2018.03.036
https://doi.org/10.1016/j.solmat.2018.03.036
Autor:
Mitsul Kacharia, David M. Wilt, Colin J. Mann, Seth M. Hubbard, Geoffrey K. Bradshaw, Hyunseong Kum, Emily Kessler-Lewis, Stephen J. Polly
Publikováno v:
2019 IEEE 46th Photovoltaic Specialists Conference (PVSC).
GaInP/(In)GaAs/Ge multijunction solar cells have been state-of-practice for power generation on spacecraft for over a decade but there are still potential improvements for endof-life (EOL) efficiency. Radiative coupling between GaInP and (In)GaAs sub
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79c97f45b16b82d65ebe7e5a82cf437b
https://doi.org/10.1109/pvsc40753.2019.8981220
https://doi.org/10.1109/pvsc40753.2019.8981220
Publikováno v:
2017 IEEE 44th Photovoltaic Specialist Conference (PVSC).
Metal matrix composites consisting of multi-walled carbon nanotubes embedded in a sliver matrix are successfully integrated onto commercial triple junction photovoltaic cells. The performance of triple junction cells with composite gridlines is analy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c92a251f25088c5670fe1cc7cb43fb9
https://doi.org/10.1109/pvsc.2017.8366385
https://doi.org/10.1109/pvsc.2017.8366385
Publikováno v:
2017 IEEE 44th Photovoltaic Specialist Conference (PVSC).
In an effort to reduce the radiation degradation of triple-junction solar cells, imbedded photon management is investigated as a means for reducing the middle subcell thickness while maintaining subcell's output. Three types of (In)GaAs subcells of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9bb69f7322fe9867a787467c1bcd4ed7
https://doi.org/10.1109/pvsc.2017.8366534
https://doi.org/10.1109/pvsc.2017.8366534
Publikováno v:
2017 IEEE 44th Photovoltaic Specialist Conference (PVSC).
Solar cells in space experience varying temperatures throughout their lifetime on spacecraft and satellites. At higher temperatures, photovoltaic performance decreases. In multijunction cells, a reduction in open-circuit voltage occurs across each su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9fb86208425ca2d3a0c878f53e132467
https://doi.org/10.1109/pvsc.2017.8366601
https://doi.org/10.1109/pvsc.2017.8366601
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:
Joshua P. Samberg, Geoffrey K. Bradshaw, Peter C. Colter, Conrad Zachary Carlin, Salah M. Bedair
Publikováno v:
IEEE Transactions on Electron Devices. 60:2532-2536
Minority carrier transport across InGaAs/GaAsP multiple quantum wells is studied by measuring the response of p-i-n and n-i-p GaAs solar cell structures. It is observed that the spectral response depends critically upon the width of the GaAsP barrier
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f6d5d82c126c0074cb92633c6abe15a
https://doi.org/10.1109/ted.2013.2268421
https://doi.org/10.1109/ted.2013.2268421
Autor:
Conrad Zachary Carlin, Geoffrey K. Bradshaw, Nadia A. El-Masry, Joshua P. Samberg, Salah M. Bedair, Peter C. Colter
Publikováno v:
IEEE Journal of Photovoltaics. 3:278-283
Multiple quantum wells (MQW) lattice matched to GaAs consisting of In0.14Ga0.76As wells balanced with GaAs0.24P0.76 barriers have been used to extend the absorption of GaAs subcells to longer wavelengths for use in an InGaP/GaAs/Ge triple-junction ph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68015516d0b5102803055b99b11c69f2
https://doi.org/10.1109/jphotov.2012.2216858
https://doi.org/10.1109/jphotov.2012.2216858
Publikováno v:
2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC).
In this work, we present the use of a simple, cost-effective, and manufacturable method of depositing carbon nanotubes onto metal films to create metal matrix composite gridlines for photovoltaic cells. Carbon nanotubes are deposited using a spray co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::851827c470a28b6cd513e50f8c1a7529
https://doi.org/10.1109/pvsc.2016.7749724
https://doi.org/10.1109/pvsc.2016.7749724