Results 151 to 160 of about 3,173 (202)

Electronic and optical properties of Cu2ZnSnS4 and Cu2ZnSnSe4

open access: yesJournal of Applied Physics, 2010
The electronic structure as well as the optical response of kesterite and stannite structures of Cu2ZnSnS4 and Cu2ZnSnSe4 are analyzed by a relativistic full-potential linearized augmented plane wave method. The energy dispersion of the conduction-band edge reveals larger effective electron mass of the two Cu2ZnSnS4 compounds (mc1≈0.18m0) compared with
Persson, Clas,, Clas Persson
openaire   +2 more sources

Antimicrobial particles based on Cu2ZnSnS4 monograins

Colloids and Surfaces B: Biointerfaces, 2023
In this research, Cu2ZnSnS4 (CZTS) particles were successfully fabricated via the molten salt approach from the copper, zinc and tin sulphides as raw precursors. SEM analysis revealed that CZTS particles are tetragonal-shaped with sharp edges, smooth flat plane morphology, and crystal size varying from 10.8 to 28.7 µm.
Rokas Žalnėravičius   +11 more
openaire   +2 more sources

Evolution of sprayed Cu2ZnSnS4

Materials Science in Semiconductor Processing, 2014
Abstract Cu 2 ZnSnS 4 (CZTS) thin films have been prepared using a Spray pyrolysis technique. The evolution of CZTS, followed by an increase in thiourea concentrations [S] from 0.04 to 0.07 M, is investigated. EDX analysis exhibits a drastic increase of sulfur amount as the thiourea concentration increases.
Zeineb Seboui   +2 more
openaire   +1 more source

Shallow defects in Cu2ZnSnS4

Physica B: Condensed Matter, 2009
Cu 2 SnZnS 4 is a promising candidate for thin film solar cells with absorbers made of non-toxic and abundant elements. So far very little effort has been put into understanding the basic material properties. We investigate vapour phase grown Cu 2 SnZnS 4 crystals by temperature and intensity dependent photoluminescence measurements.
Hönes, Katja   +3 more
openaire   +2 more sources

Cu2ZnSnS4 thin film solar cells by fast coevaporation

open access: yesProgress in Photovoltaics: Research and Applications, 2011
Cu2ZnSnS4 Thin Film Solar Cells by Fast ...
Thomas Unold   +2 more
exaly   +2 more sources

Preparations of Cu2ZnSnS4 thin films and Cu2ZnSnS4/Si heterojunctions on silicon substrates by sputtering

Optik, 2016
Abstract The single-crystalline silicon substrate has close lattice constant with Cu 2 ZnSnS 4 (CZTS), which is beneficial to the crystalline growth of CZTS thin films. In this work, the CZTS thin films were deposited on silicon substrates by sputtering and post-sulfurization to form CZTS/Si heterojunctions.
Jiaxiong Xu   +3 more
openaire   +1 more source

Facile synthesis of Cu2ZnSnS4 nanocrystals

CrystEngComm, 2011
A facile, greener and inexpensive method was developed to synthesize high quality quarternary Cu2ZnSnS4 (CZTS) nanocrystals at temperature lower than 220 °C, in which Cu2ZnSn(S2CNEt2)10, oleylamine and oleic acid were used as the precursor, activation agent and capping agent, respectively.
Chao Zou   +7 more
openaire   +1 more source

Sprayed films of stannite Cu2ZnSnS4

Applied Surface Science, 1996
Abstract A stoichiometric Cu2ZnSnS4 film with the stannite structure and resistivity of 2 × 10 2 Ω · cm has been prepared by annealing polycrystalline quaternary films at 550°C, which are spray-deposited on glass substrates, in an argon gas flow containing H2S.
Norio Nakayama, Kentaro Ito
openaire   +1 more source

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   +1 more
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Microphotoluminescence study of Cu2ZnSnS4 polycrystals

Journal of Photonics for Energy, 2013
Microphotoluminescence studies of Cu 2 ZnSnS 4 polycrystals were performed. At room temperature, two photoluminescence (PL) bands were detected at 1.39 and 1.53 eV and attributed to band-to-tail (BT) and band-to-band (BB) recombination, respectively. At lower temperatures, band-to-impurity recombination always dominates.
Maarja Grossberg   +3 more
openaire   +1 more source

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