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Nanostructured thermoelectric kesterite Cu2ZnSnS4
2021To support the growing global demand for energy, new sustainable solutions are needed both economically and environmentally. Thermoelectric waste heat recovery and energy harvesting could contribute by increasing industrial process efficiency, as well as powering stand-alone devices, microgenerators, and small body appliances.The structural complexity ...
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The Consequences of Kesterite Equilibria for Efficient Solar Cells
Journal of the American Chemical Society, 2011Copper-zinc-tin-chalcogenide kesterites, Cu(2)ZnSnS(4) and Cu(2)ZnSnSe(4) (CZTS(e)) are ideal candidates for the production of thin film solar cells on large scales due to the high natural abundance of all constituents, a tunable direct band gap ranging from 1.0 to 1.5 eV, a large absorption coefficient, and demonstrated power conversion efficiencies ...
REDINGER, Alex +3 more
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Cation Substitution in Earth‐Abundant Kesterite Photovoltaic Materials [PDF]
Advanced Science, 2018 AbstractAs a promising candidate for low‐cost and environmentally friendly thin‐film photovoltaics, the emerging kesterite‐based Cu2ZnSn(S,Se)4 (CZTSSe) solar cells have experienced rapid advances over the past decade. However, the record efficiency of CZTSSe solar cells (12.6%) is still significantly lower than those of its predecessors Cu(In,Ga)Se2 ...
Jianjun Li
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High-field hopping magnetotransport in kesterites
Journal of Magnetism and Magnetic Materials, 2018Abstract Transport properties of the kesterite-like single crystals of Cu2ZnSnS4, Cu2ZnSnxGe1−xSe4 and Cu2ZnGeS4 are investigated in pulsed magnetic fields up to B = 20 T. The Mott variable-range hopping (VRH) conduction is established by investigations of the resistivity, ρ (T), in all the materials mentioned above within broad temperature intervals
E. Lähderanta +7 more
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Journal of Alloys and Compounds, 2019
Abstract Presented is a study on the mechanochemically assisted synthesis of kesterite Cu2ZnSnS4 from the elements for photovoltaic applications. Initial application of high energy ball milling under selected conditions, including the highest achievable rotation speeds up to 1000 rpm, affords a pure cubic nanophase with the nominal kesterite ...
Katarzyna Lejda +2 more
exaly +2 more sources
Abstract Presented is a study on the mechanochemically assisted synthesis of kesterite Cu2ZnSnS4 from the elements for photovoltaic applications. Initial application of high energy ball milling under selected conditions, including the highest achievable rotation speeds up to 1000 rpm, affords a pure cubic nanophase with the nominal kesterite ...
Katarzyna Lejda +2 more
exaly +2 more sources
The state and future prospects of kesterite photovoltaics
Energy & Environmental Science, 2013A recent meeting of experts in kesterite, chalcopyrite, and related thin-film solar cell devices; characterization; and modeling from industry, academia, and national labs identified high-impact pathways forward in kesterite photovoltaics research, towards the end-goal of achieving high-efficiency (>18%) devices in an accelerated timeframe.
Alex Polizzotti +4 more
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Determination of tin as stannite-kesterite and cassiterite in ores
Talanta, 1975Tin is stannite-kesterite and as cassiterite in a tin-bearing ore can be determined by the selective decomposition of the stannite-kesterite phase with a mixture of sodium nitrate and acetic acid.
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Growth kinetics during kesterite coevaporation
2012 38th IEEE Photovoltaic Specialists Conference, 2012Kesterite solar cells have been considered as earth-abundant substitute to chalcopyrites. NREL's 9.2% co-evaporated kesterite solar cell is inspired by the copper-rich growth of co-evaporated chalcopyrites. The excess Cu x Se y is believed to conduct liquid-phase assisted grain growth and hence improves the device performance.
Wan-Ching Hsu +7 more
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Laser operation by kesterite chalcogenide nanocrystals
Optik, 2019Abstract We demonstrate a possibility to vary structural, morphological and optoelectronics parameters for kesterite Cu2ZnSnS4 nanocrystalline films using external laser beams at 1540 nm, and 770 nm or 1064 nm, and 532 nm. The illumination is performed both by single mode laser beams as well as by bicolor coherent treatment.
A.M. El-Naggar +3 more
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