Results 191 to 200 of about 5,289 (211)

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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Synthesis and characterization of Cu2ZnSnS4 nanoparticles

Nanomaterials and Energy, 2015
Copper zinc tin sulfide (Cu2ZnSnS4 or CZTS) is a p-type semiconducting material with high absorption coefficient (104 cm−1) and a band gap of ~1·5 eV. Most of its constituents are earth abundant and are environmentally benign. Therefore, in this work, the authors investigated structural and optical properties of CZTS nanoparticles synthesized by ...
Annapoornam Ganesan Kannan, Thirumalaisamy Esvaramoorthy Manjulavalli   +1 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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Выращивание и свойства монокристаллов Cu2ZnSnS4

2015
Cоединения типа A2BCX4, (АI –Cu, Ag; BII – Zn, Cd; XVI – S, Se, Te) в последнее время привлекают к себе внимание различных групп исследователей, что связано с перспективностью применения указанных материалов в качестве поглощающего слоя в тонкопленочных солнечных элементах [1–5].
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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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Transmittance Spectra of Cu2ZnSnS4 Thin Films

Journal of Electronic Materials, 2015
Thin films of the quaternary compound semiconductor Cu2ZnSnS4 (CZTS) were produced by ion beam sputtering at substrate temperatures of 323 K, 423 K, and 573 K. The chemical and structural properties of the thin films were studied by electron microprobe analysis and grazing incidence x-ray diffraction.
Bodnar, I. V., Telesh, E. V., Gurieva, G., Schorr, S.   +3 more
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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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Cu2ZnSnS4:graphene oxide nanocomposites based photoresponse devices

Journal of Alloys and Compounds, 2015
Graphene oxide:Cu2ZnSnS4 nanocomposites were synthesized by the chemical method to fabricate photodiodes. The structural properties of the nanocomposites were analyzed using a Scanning electron microscopy (SEM) and X-ray Energy Dispersive energy (EDS) technique. Electrical and photoresponse properties of the p-Si/graphene oxide:Cu2ZnSnS4 nanocomposites
Faten Al-Hazmi, F. Yakuphanoglu
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Multi-stage evaporation of Cu2ZnSnS4 thin films

Thin Solid Films, 2009
Multi-stage evaporation is a well-established method for the controlled growth of chalcopyrite thin films. To apply this technique to the deposition of Cu2ZnSnS4 thin films we investigated two different stage sequences: (A) using Cu2SnS3 as precursor to react with Zn-S and (B) using ZnS as precursor to react with Cu-Sn-S.
A. Weber, H. Krauth, S. Perlt, B. Schubert, I. Kötschau, S. Schorr, H.W. Schock   +6 more
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