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Development of wide bandgap perovskites for next-generation low-cost CdTe tandem solar cells

https://doi.org/10.1016/j.ces.2019.01.003

Siegler, Timothy D. ; Shimpi, Tushar M. ; Sampath, Walajabad S. ; Korgel, Brian A. ( May 2019 , Chemical Engineering Science)

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CdS barrier to minimize Zn loss during CdCl2 treatment of Cd-Zn-Te absorbers

https://doi.org/10.1016/j.solener.2018.08.060

Shimpi, Tushar M. ; Swanson, Drew E. ; Drayton, Jennifer ; Abbas, Ali ; Walls, John M. ; Barth, Kurt L. ; Sampath, Walajabad S. ( October 2018 , Solar Energy)

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Doping CdSe x Te 1-x /CdTe Graded Absorber Films with Arsenic for Thin-Film Photovoltaics

https://doi.org/10.1109/PVSC40753.2019.8981239

Munshi, Amit H. ; Guo, Jinglong ; Klie, Robert ; Sampath, Walajabad S. ; Danielson, Adam H. ; Swain, Santosh ; Reich, Carey L. ; Shimpi, Tushar M. ; McPherson, Seth W. ; Lynn, Kelvin G. ; et al ( June 2019 , 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC))

CdTe thin-film photovoltaics have demonstrated some of the lowest costs of electricity generation owing to its low material cost and ease of manufacturing. However, the full potential of polycrystalline CdTe photovoltaics can only be realized if the open-circuit voltage can be increased beyond 1 V Open-circuit voltage ~850-900 mV has been consistently observed for state-of-the-art polycrystalline CdTe solar cells. Open-circuit voltage of over 1V has been demonstrated for single crystal CdTe devices by doping with Group V elements. Therefore, this study is aimed at understanding behavior of polycrystalline CdTe devices with arsenic doping, its activation and process and performance optimization in order to overcome current voltage limitations in CdTe solar cells.
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Polycrystalline CdTe photovoltaics with efficiency over 18% through improved absorber passivation and current collection

https://doi.org/10.1016/j.solmat.2017.11.031

Munshi, Amit H. ; Kephart, Jason M. ; Abbas, Ali ; Shimpi, Tushar M. ; Barth, Kurt L. ; Walls, John M. ; Sampath, Walajabad S. ( March 2018 , Solar Energy Materials and Solar Cells)

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Advanced co-sublimation hardware for deposition of graded ternary alloys in thin-film applications

https://doi.org/10.1109/PVSC.2018.8547356

Munshi, Amit H. ; Kephart, Jason M. ; Reich, Carey L. ; Hemenway, Davis R. ; Shimpi, Tushar M. ; Abbas, Ali ; Cameron, Kevan C. ; Danielson, Adam H. ; Barth, Kurt L. ; Walls, John M. ; et al ( June 2018 , 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC))

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Effect of the cadmium chloride treatment on RF sputtered Cd 0.6 Zn 0.4 Te films for application in multijunction solar cells

https://doi.org/10.1116/1.4960979

Shimpi, Tushar M. ; Kephart, Jason M. ; Swanson, Drew E. ; Munshi, Amit H. ; Sampath, Walajabad S. ; Abbas, A. ; Walls, John M. ( September 2016 , Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films)