Results 191 to 200 of about 2,636 (227)

Nanostructured thermoelectric kesterite Cu2ZnSnS4

2021
To 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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Size control and quantum confinement in Cu2ZnSnS4 nanocrystals

Chemical Communications, 2011
Starting with metal dithiocarbamate complexes, we synthesize colloidal Cu(2)ZnSnS(4) (CZTS) nanocrystals with diameters ranging from 2 to 7 nm. Structural and Raman scattering data confirm that CZTS is obtained rather than other possible material phases. The optical absorption spectra of nanocrystals with diameters less than 3 nm show a shift to higher
Ankur, Khare, Andrew W, Wills, Lauren M, Ammerman, David J, Norris, Eray S, Aydil   +4 more
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Cu2ZnSnS4 nanocrystals and graphene quantum dots for photovoltaics

Nanoscale, 2011
Semiconductor quantum dots exhibit great potential for applications in next generation high efficiency, low cost solar cells because of their unique optoelectronic properties. Cu(2)ZnSnS(4) (CZTS) nanocrystals and graphene quantum dots (GQDs) have recently received much attention as building blocks for use in solar energy conversion due to their ...
Jun, Wang, Xukai, Xin, Zhiqun, Lin
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Synthesis of Cu2ZnSnS4 nanocrystals by solvothermal method

Thin Solid Films, 2013
Abstract A high-yield synthesis route to obtain phase-pure, highly crystalline Cu 2 ZnSnS 4 (CZTS) nanocrystals with controlled Cu/(Zn + Sn) ratio is reported. The material properties were investigated to understand the effect of initial precursor concentrations on the stoichiometry of CZTS nanocrystals.
Mou Pal, N.R. Mathews, R. Silva Gonzalez, X. Mathew   +3 more
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An investigation of rapidly synthesized Cu2ZnSnS4 nanocrystals

Journal of Crystal Growth, 2013
Abstract A detailed understanding regarding rapidly synthesized Cu 2 ZnSnS 4 (CZTS) nanocrystal processing parameters, their correct phase identification, size and shape analysis, and optoelectronic performance evaluation are essential in order to produce high quality nanocrystals.
Prashant K. Sarswat, Michael L. Free
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Aqueous synthesis of wurtzite Cu2ZnSnS4 nanocrystals

Materials Letters, 2013
Abstract Ternary and quaternary chalcogenides are thought to be promising candidates for low cost and sustainable solar energy converting devices due to large extinction coefficient and ideal band gap energy. Among them, Cu 2 ZnSnS 4 (CZTS) is one of the most important materials because of its earth-abundant as well as non-toxic elements.
Chia-Cheng Kang, Hsuan-Fu Chen, Tzu-Chiu Yu, Tzu-Chieh Lin   +3 more
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Comparative study of Cu2ZnSnS4 film growth

Solar Energy Materials and Solar Cells, 2011
We fabricated Cu2ZnSnS4 (CZTS) thin films using two different methods, spray pyrolysis and sulfurization of Cu–Zn–Sn metallic films. Spray pyrolysis was carried out under air ambient with modified ultrasonic spray system. Sulfurizations of metallic Cu–Zn–Sn films were done for stacked metallic films, Cu/Sn/Zn/glass, Cu/Sn/Cu/Zn/glass and Sn/Cu/Zn/glass,
Hyesun Yoo, JunHo Kim
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Cu2ZnSnS4 thin film solar cells

Thin Solid Films, 2005
Abstract Aiming to develop the solar cells free from the environmental contaminants, promising solar cell of a thin film type could be produced by using Cu 2 ZnSnS 4 (CZTS) film as the absorber. The CZTS film possesses promising characteristic optical properties; band gap energy of about 1.5 eV and large absorption coefficient in the order of 10 4 ...
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Thermal transport in Cu2ZnSnS4 thin films

Journal of Applied Physics, 2016
The stability of kesterite Cu2ZnSnS4 (CZTS) under a range of compositions leads to the formation of a number of stable defects that appear to be necessary for high efficiency photovoltaic applications. In this work, the impact of the presence of these defects on the thermal conductivity of CZTS thin films has been explored.
W. D. Thompson, Abhishek Nandur, B. E. White   +2 more
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Cu2ZnSnS4, Cu2ZnSnSe4, and Related Materials

2015
Kesterite-structured quaternary compounds Cu2ZnSnS4 (CZTS) and Cu2ZnSnSe4 (CZTSe) semiconductors are drawing intensive attention as the light-absorbing materials in thin-film solar cells. Because all their component elements are earth-abundant and environment-friendly, their band gaps are close to the optimal band gap of the light-absorber ...
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