Results 71 to 80 of about 1,965 (210)

Conductivity mechanisms and influence of the Cu/Zn disorder on electronic properties of the powder Cu2ZnSn(S1-xSex)4 solid solutions

open access: yesJournal of Materials Research and Technology, 2021
One of the major reasons for a recent stuck of the development of kesterite based photovoltaic devices is related to the problems in their open circuit voltage. Several limitations can be pointed out as a possible origin.
Maxim Guc   +5 more
doaj   +1 more source

Enhanced external quantum efficiency from Cu2ZnSn(S,Se)4 solar cells prepared from nanoparticle inks [PDF]

open access: yes, 2018
Cu2ZnSn(S,Se)4 (CZTSSe) thin film photovoltaic absorber layers are fabricated by selenizing Cu2ZnSnS4 (CZTS) nanoparticle thin films in a selenium rich atmosphere.
Beattie, Neil   +4 more
core   +1 more source

Analysis of the Voltage Losses in CZTSSe Solar Cells of Varying Sn Content [PDF]

open access: yesThe Journal of Physical Chemistry Letters, 2019
The performance of kesterite (Cu2ZnSn(S,Se)4, CZTSSe) solar cells is hindered by low open circuit voltage ( Voc). The commonly used metric for Voc-deficit, namely, the difference between the absorber band gap and qVoc, is not well-defined for compositionally complex absorbers like kesterite where the bandgap is hard to determine.
Mohammed Azzouzi   +6 more
openaire   +5 more sources

Synthesis and characterization of kesterite Cu2ZnSn(SxSe1-x)4 thin films with low-cost for efficient solar cells

open access: yesResults in Optics, 2023
In this study, we conducted an investigation on the Cu2ZnSnS4 (CZTS) kësterite compound, which is considered an attractive material for its favorable absorption properties, making it a suitable semiconductor for photovoltaic applications.
Aka Hyacinthe Aka   +3 more
doaj   +1 more source

Cu2ZnSnS4 thin film solar cells grown by fast thermal evaporation and thermal treatment [PDF]

open access: yes, 2018
Cu2ZnSnS4 thin films have been produced via rapid thermal evaporation of off-stoichiometric kesterite powder followed by annealing in an Ar atmosphere. Different heating rates were applied during the thermal treatments.
Caballero, Raquel   +11 more
core   +1 more source

DFT Modeling and Impedance Spectroscopy Analysis of a High Performance Zirconia‐Based Solar Cell

open access: yesNano Select, Volume 7, Issue 3, March 2026.
p‐SnS/n‐CdS heterojunction solar cells with Al‐ZnO/i‐ZnO window layers simulated using SCAPS‐1D and impedance spectroscopy enabled tracking of solar cell parameters. The optimal performance (η = 22.76%, Voc = 0.77 V) was achieved with a 5 µm SnS absorber at Rs = 1Ω.cm−2 and Rsh = 10 kΩ.cm−2.
George G. Njema   +7 more
wiley   +1 more source

Controlled Li Alloying of CZTSSe Absorbers by Electrochemical Treatment

open access: yes, 2023
Oral presentation at 2023 MRS Spring ...
Moser, Simon   +4 more
openaire   +2 more sources

CdCl2 Treatment for Cu2ZnSn(S,Se)4: A Method to Enhance the Solar Cell Performance

open access: yesProgress in Photovoltaics: Research and Applications, Volume 34, Issue 3, Page 271-285, March 2026.
We present, for the first time, two alternative CdCl2 treatments applied to solution‐processed kesterite (CZTSSe) absorbers: pre‐selenization and post‐selenization. Carrier concentration is consistently increased by either route, whereas the band gap decreases with pre‐selenization but remains nearly constant with post‐selenization; enhanced defect ...
Prabeesh Punathil   +9 more
wiley   +1 more source

Raman mapping analysis for removal of surface secondary phases of CZTS films using chemical etching [PDF]

open access: yes, 2016
Raman spectroscopy has been widely used as a non-destructive surface characterization method for the Cu 2ZnSnS4 (CZTS) thin films. Secondary phases, which often co-exist with CZTS, are detrimental to the device performance.
Trystan Watson, Wing Chung Tsoi
core   +1 more source

Metastable defect response in CZTSSe from admittance spectroscopy

open access: yesApplied Physics Letters, 2017
Admittance spectroscopy is a useful tool used to study defects in semiconductor materials. However, metastable defect responses in non-ideal semiconductors can greatly impact the measurement and therefore the interpretation of results. Here, admittance spectroscopy was performed on Cu2ZnSn(S,Se)4 where metastable defect response is illustrated due to ...
Mark J. Koeper   +4 more
openaire   +2 more sources

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