Zobrazeno 1 - 10
of 31
pro vyhledávání: '"V. Evani"'
Publikováno v:
IEEE Journal of Photovoltaics. 7:1450-1455
The effect of gas phase Cd/Te deposition ratio on the minority carrier lifetime and doping concentration of polycrystalline cadmium telluride (CdTe) was investigated. CdTe thin films were deposited by the elemental vapor transport (EVT) with various
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9f68036d162222e393d2ebf57e0b82a
https://doi.org/10.1109/jphotov.2017.2730865
https://doi.org/10.1109/jphotov.2017.2730865
Autor:
V. Evani, Sudhajit Misra, Michael A. Scarpulla, Chris Ferekides, Imran Khan, Vasilios Palekis, Mark C. Lonergan, Don L. Morel, Shamara Collins
Publikováno v:
2017 IEEE 44th Photovoltaic Specialist Conference (PVSC).
The CdTe solar cell back contact interface gets activated by means of thermal annealing. Depending on the back contact (BC) material the annealing time can vary between 20 - 60 minutes. In this study fast contact anneal times - $< 90$ sees - are inve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c05bec00e793b8ccaf67a1200bb6d16
https://doi.org/10.1109/pvsc.2017.8366164
https://doi.org/10.1109/pvsc.2017.8366164
Autor:
Vasilios Palekis, Chih An Hsu, Don L. Morel, V. Evani, Chris Ferekides, Shamara Collins, Imran Khan
Publikováno v:
2017 IEEE 44th Photovoltaic Specialist Conference (PVSC).
Low temperature photoluminescence (PL) was used to study the effect of in-situ phosphorus (P) doping on polycrystalline Cadmium Telluride (CdTe) deposited by the Elemental Vapor Transport (EVT) technique. The CdTe films discussed in this paper were d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17a608a3b477e09f8536769bbb4cc18b
https://doi.org/10.1109/pvsc.2017.8366034
https://doi.org/10.1109/pvsc.2017.8366034
Publikováno v:
2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC).
The defect distribution of polycrystalline Cadmium Telluride (CdTe) deposited by Close Spaced Sublimation (CSS) is investigated using Deep Level Transient Spectroscopy (DLTS). CdTe solar cells were fabricated with different post deposition processing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc3c2ed885645dcbc1a907a335f6a40f
https://doi.org/10.1109/pvsc.2016.7750023
https://doi.org/10.1109/pvsc.2016.7750023
Publikováno v:
2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC).
Phosphorus (P) doping of polycrystalline CdTe films deposited by Elemental Vapor Transport is being investigated. The structure and morphology have been studied using XRD and SEM. XRD studies indicated highly oriented CdTe films along with the presen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17d5916d517a165365e19bd6c4ca8eff
https://doi.org/10.1109/pvsc.2016.7749628
https://doi.org/10.1109/pvsc.2016.7749628
Autor:
Khan, Michael A. Scarpulla, Vasilios Palekis, John M. Walls, Sudhajit Misra, Ali Abbas, Chris Ferekides, Shamara Collins, V. Evani
Publikováno v:
2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC).
The CdCl 2 heat treatment (HT) is one of the most critical steps in the fabrication of high efficiency CdTe solar cells. In this study a laser based CdCl 2 treatment is presented. A high power near infrared (808 nm) diode laser was used for laser ann
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba24f03fd61b3b408444406d3bfd7c4e
https://doi.org/10.1109/pvsc.2016.7749867
https://doi.org/10.1109/pvsc.2016.7749867
Publikováno v:
2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC).
The stoichiometry of CdTe plays an important role in the formation of point defects and can therefore impact solar cell performance. In this study, the effect of Cu and Cl on CdTe films is investigated as a function of stoichiometry. The stoichiometr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f43b737407d9a539ec53441c78277800
https://doi.org/10.1109/pvsc.2015.7356098
https://doi.org/10.1109/pvsc.2015.7356098
Publikováno v:
2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC).
The effect of in-situ Antimony (Sb) doping on polycrystalline Cadmium Telluride (CdTe) deposited by Elemental Vapor Transport (EVT) is investigated. The presence of Sb in the film is verified by SIMS measurements. The film structures were studied by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b28633f1d7a2addb811b6f55d43446c
https://doi.org/10.1109/pvsc.2015.7356365
https://doi.org/10.1109/pvsc.2015.7356365
Autor:
Sara Bakhshi, Vasilios Palekis, M. Khan, P. Bane, Sergiu Vatavu, Don L. Morel, Shamara Collins, V. Kendre, V. Evani, Chris Ferekides
Publikováno v:
2014 IEEE 40th Photovoltaic Specialist Conference (PVSC).
The effect of the vapor phase Cadmium (Cd) to Tellurium (Te) ratio on the electronic properties of CdTe films is being studied. The stoichiometry of CdTe films is being altered by varying the gas phase Cd/Te ratio during the Elemental Vapor Transport
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e3b69f885e64db07418af1da3d9854f
https://doi.org/10.1109/pvsc.2014.6925397
https://doi.org/10.1109/pvsc.2014.6925397
Publikováno v:
2013 IEEE 39th Photovoltaic Specialists Conference (PVSC).
It is well known that Cu plays a key role in the CdTe solar cell. In this study, the effect of Cu on the resistivity of polycrystalline CdTe films was investigated. CdTe films with various thicknesses were deposited by Close-Spaced Sublimation (CSS)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86e30966acf344c7c9a654c42d509ef1
https://doi.org/10.1109/pvsc.2013.6744412
https://doi.org/10.1109/pvsc.2013.6744412