Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Mandip J. Sibakoti"'
Autor:
Brian T. Benton, Stephen A. Campbell, Sreejith Karthikeyan, Timothy Bontrager, Mandip J. Sibakoti, Sehyun Hwang
Publikováno v:
IEEE Journal of Photovoltaics. 10:267-275
Photovoltaic devices based on the copper–indium–gallium–selenium (CIGS) materials system are limited to thermal cycles below 350 °C. This is an obstacle for making higher performance devices and a significant barrier to building multi-junction
Autor:
Timothy Bontrager, Mandip J. Sibakoti, R. W. Liptak, Sreejith Karthikeyan, Stephen A. Campbell, Sehyun Hwang
Publikováno v:
Applied Surface Science. 493:105-111
Thin-film photovoltaic research based on ternary or quaternary absorber materials has mainly concentrated on copper (indium/gallium) diselenide, CuIn x Ga 1-x Se 2 (CIGS). This material has demonstrated exceptional energy conversion efficiencies. By
Autor:
Stephen A. Campbell, Mandip J. Sibakoti, Sehyun Hwang, Sreejith Karthikeyan, Timothy Bontrager
Publikováno v:
2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC).
The saturation of V O c at larger band gaps in Cu(In, Ga)Se 2 devices presents a major challenge in developing high efficiency solar devices for tandem solar applications. Although recent studies have shown that recombination at the buffer/absorber i
Publikováno v:
2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC).
We investigated the synthesis of kesterite Cu2ZnSnS4 (CZTS) thin films using thermal evaporation from copper (Cu), zinc (Zn) and tin (Sn) pellets and post-annealing in a sulfur atmosphere. Two different metal precursor stacking orders (Cu/Sn/Zn/Cu an
Publikováno v:
MRS Proceedings. 1738
We investigate the synthesis of kesterite Cu2ZnSnS4 (CZTS) thin films using thermal evaporation from copper, zinc and tin pellets and post-annealing in a sulfur atmosphere. The effects of chemical composition were studied both on the absorber layer p
Autor:
Stephen A. Campbell, Sang Ho Song, Sreejith Karthikeyan, Joel T. Abrahamson, Eray S. Aydil, Mandip J. Sibakoti, R. W. Liptak
Publikováno v:
2014 IEEE 40th Photovoltaic Specialist Conference (PVSC).
Copper indium gallium diselenide (CIGS) based solar cells have shown efficiencies > 20% on the lab scale and are already in commercial production. Even though the optimal band gap of 1.6 eV to 1.7 eV can be achieved by increasing the Ga content, thes
Publikováno v:
2013 13th IEEE International Conference on Nanotechnology (IEEE-NANO 2013).
A set of laboratory activities has been developed to simulate multiple steps in the integrated circuit fabrication process. The Microfabrication Teaching Laboratory offers tools and procedures for a comprehensive simulation of the device fabrication