Results 171 to 180 of about 2,838 (205)

The Consequences of Kesterite Equilibria for Efficient Solar Cells

Journal of the American Chemical Society, 2011
Copper-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, Berg, M. Dominik, DALE, Phillip, SIEBENTRITT, Susanne   +3 more
openaire   +3 more sources

Loss mechanisms in kesterite

2014
peer ...
SIEBENTRITT, Susanne, REDINGER, Alex
openaire   +1 more source

Laser operation by kesterite chalcogenide nanocrystals

Optik, 2019
Abstract 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, K. Ozga, A.A. Albassam, G. Lakshminarayana   +3 more
openaire   +1 more source

High-field hopping magnetotransport in kesterites

Journal of Magnetism and Magnetic Materials, 2018
Abstract 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, K. Lisunov, M.A. Shakhov, M. Guc, E. Hajdeu-Chicarosh, S. Levcenko, I. Zakharchuk, E. Arushanov   +7 more
openaire   +1 more source

The state and future prospects of kesterite photovoltaics

Energy & Environmental Science, 2013
A 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, Ingrid L. Repins, Rommel Noufi, Su-Huai Wei, David B. Mitzi   +4 more
openaire   +1 more source

Determination of tin as stannite-kesterite and cassiterite in ores

Talanta, 1975
Tin 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.
openaire   +2 more sources

Growth kinetics during kesterite coevaporation

2012 38th IEEE Photovoltaic Specialists Conference, 2012
Kesterite 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, Ingrid Repins, Carolyn Beall, Glenn Teeter, Clay DeHart, Bobby To, Yang Yang, Rommel Noufi   +7 more
openaire   +1 more source

Standard Enthalpy of Kesterite (Cu2ZnSnS4) Formation

Geochemistry International, 2019
Calorimetrically determined enthalpy of kesterite (Cu2ZnSnS4) formation from simple sulfides 2CuS + ZnS + SnS → Cu2ZnSnS4 was utilized to calculate the standard enthalpy of formation of Cu2ZnSnS4 (from elements at a pressure of 105 Pa): $${{\Delta }_{f}}H_{{298.5}}^{0}$$
T. A. Stolyarova, E. G. Osadchii, A. V. Baranov   +2 more
openaire   +1 more source

From magnetic cubic pre-kesterite to semiconducting tetragonal kesterite Cu2ZnSnS4 nanopowders via the mechanochemically assisted route

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 Kapusta, Mariusz Drygas, Jerzy F. Janik, Piotr Jelen, Miroslaw M. Bucko, Zbigniew Olejniczak   +5 more
openaire   +1 more source

4.3% efficient kesterite solar cell modules

Science Bulletin, 2023
Mingjun, Yuan, Chunxu, Xiang, Zhen, Yan, Hongfei, Zhou, Naiyun, Liu, Shuxia, Wei, Wei, Li, Weibo, Yan, Chunlei, Yang, Hao, Xin   +9 more
openaire   +2 more sources