Zobrazeno 1 - 10
of 12
pro vyhledávání: '"John Raguse"'
Autor:
Ali Abbas, John M. Walls, Amit Munshi, Kurt L. Barth, Walajabad S. Sampath, John Raguse, James R. Sites, Jean-Nicolas Beaudry, Jason M. Kephart
Publikováno v:
IEEE Journal of Photovoltaics. 8:310-314
An 800 nm CdSeTe layer was added to the CdTe absorber used in high-efficiency CdTe cells to increase the current and produce an increase in efficiency. The CdSeTe layer employed had a band-gap near 1.41 eV, compared with 1.5 eV for CdTe. This lower b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a2597685a4c07271855196c11dae379
https://doi.org/10.1109/jphotov.2017.2775139
https://doi.org/10.1109/jphotov.2017.2775139
Publikováno v:
IEEE Journal of Photovoltaics. 7:303-306
The deliberate introduction of K and Na into Cu(In, Ga)Se2 (CIGS) absorbers was investigated by varying a combination of an SiO2 diffusion barrier, coevaporation of KF with the CIGS absorber, and a KF postdeposition treatment (PDT). Devices made with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1bdcc4cf642a63fff98e476385b397a
https://doi.org/10.1109/jphotov.2016.2621343
https://doi.org/10.1109/jphotov.2016.2621343
Autor:
James R. Sites, John Raguse
Publikováno v:
IEEE Journal of Photovoltaics. 5:1175-1178
Electroluminescence (EL) measurements of several CdTe solar cells, a GaAs solar cell, and an AlGaAs LED were performed. The mean integrated EL intensity, normalized to exposure time and injection-current density, correlates well with the difference b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ee24b865757b0f77e17148194feb5be
https://doi.org/10.1109/jphotov.2015.2417761
https://doi.org/10.1109/jphotov.2015.2417761
Autor:
Ali Abbas, Amit Munshi, Russell M. Geisthardt, James R. Sites, Jennifer Drayton, Drew E. Swanson, Walajabad S. Sampath, John Raguse
Publikováno v:
MRS Proceedings. 1771:133-138
The addition of a CdMgTe (CMT) layer at the back of a CdTe solar cell should improve its performance by reflecting both photoelectrons and forward-current electrons away from the rear surface. Higher collection of photoelectrons will increase the cel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a1d73ffdc049260e0083886d21815a2
https://doi.org/10.1557/opl.2015.389
https://doi.org/10.1557/opl.2015.389
Publikováno v:
MRS Proceedings. 1538:269-274
The traditional CdCl2 passivation of CdTe is expanded by adding other chlorides such as MgCl2, NaCl, and MnCl2 into the process through a two-step passivation procedure that combines closed space sublimation step with a vapor process. This allows the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1bc38d0fe052d0c099dc189ee5430473
https://doi.org/10.1557/opl.2013.984
https://doi.org/10.1557/opl.2013.984
Autor:
Timothy J. Silverman, Chris Deline, Xingshu Sun, Muhammad A. Alam, Rebekah L. Garris, John Raguse
Publikováno v:
2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC).
In this paper, we develop a physics-based compact model for CIGS and CdTe heterojunction solar cells that attributes the failure of superposition to voltage-dependent carrier collection in the absorber layer, and interprets light-enhanced reverse bre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13c5e610ec72f3183c51945b67a9ec99
https://doi.org/10.1109/pvsc.2015.7355778
https://doi.org/10.1109/pvsc.2015.7355778
Publikováno v:
2014 IEEE 40th Photovoltaic Specialist Conference (PVSC).
An accelerated-life-testing (ALT) system has been built at the Colorado State University Photovoltaics Laboratory with an emphasis on versatility and periodically performing a suite of electronic measurements on stressed devices. The setup utilizes a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc0a423d40a18338c9be265a09918a16
https://doi.org/10.1109/pvsc.2014.6925472
https://doi.org/10.1109/pvsc.2014.6925472
Publikováno v:
2014 IEEE 40th Photovoltaic Specialist Conference (PVSC).
The performance of CdTe thin film photovoltaic devices are sensitive to process parameters. In this study, efforts are made to further understand the effects of process parameters like process temperature and variation in cadmium chloride passivation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ab824d08fb1af316fce87cc2f4f50f2
https://doi.org/10.1109/pvsc.2014.6925235
https://doi.org/10.1109/pvsc.2014.6925235
Autor:
Drew E. Swanson, Jennifer Drayton, Pavel S. Kobyakov, Walajabad S. Sampath, John Raguse, Kurt L. Barth
Publikováno v:
2013 IEEE 39th Photovoltaic Specialists Conference (PVSC).
An Electron Reflector (ER) structure in CdS/CdTe photovoltaic cells has potential to increase the cell's open circuit voltage. Progress towards implementing a Cd1-xMgxTe thin film as an electron reflector is presented, including deposition method, fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9c187a489cafc87c1453572bcaf658e
https://doi.org/10.1109/pvsc.2013.6744174
https://doi.org/10.1109/pvsc.2013.6744174
Publikováno v:
2012 38th IEEE Photovoltaic Specialists Conference.
A highly versatile electroluminescence (EL) system was constructed to measure various non-uniformities in CdTe photovoltaic devices spanning a wide range of areas. The emitted photons from these devices are detected with a Si-CCD camera. A small-area
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::148f9f64e36b1fb9405b0ebc3718e983
https://doi.org/10.1109/pvsc.2012.6317654
https://doi.org/10.1109/pvsc.2012.6317654