Results 181 to 190 of about 53,002 (228)
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Journal of the American Chemical Society, 2003
We report the first successful synthesis and characterization of single-crystal wurtzite CdSe nanoribbons through a simple thermal evaporation process. Asymmetric growth of the nanoribbons occurs, yielding a sawlike shape with sharp teeth on one side. This asymmetric growth is suggested to be induced by the polarization of the c-plane in the wurtzite ...
Christopher, Ma +4 more
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We report the first successful synthesis and characterization of single-crystal wurtzite CdSe nanoribbons through a simple thermal evaporation process. Asymmetric growth of the nanoribbons occurs, yielding a sawlike shape with sharp teeth on one side. This asymmetric growth is suggested to be induced by the polarization of the c-plane in the wurtzite ...
Christopher, Ma +4 more
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Journal of the American Chemical Society, 2016
Semiconductor quantum rings are of great fundamental interest because their non-trivial topology creates novel physical properties. At the same time, toroidal topology is difficult to achieve for colloidal nanocrystals and epitaxially grown semiconductor nanostructures.
Igor, Fedin, Dmitri V, Talapin
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Semiconductor quantum rings are of great fundamental interest because their non-trivial topology creates novel physical properties. At the same time, toroidal topology is difficult to achieve for colloidal nanocrystals and epitaxially grown semiconductor nanostructures.
Igor, Fedin, Dmitri V, Talapin
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Biopolymer-protected CdSe nanoparticles
Carbohydrate Research, 2009A synthetic procedure for the encapsulation of cadmium selenide (CdSe) nanoparticles in a sago starch matrix is introduced. The nanocomposite was investigated using structural, spectroscopic, and thermal methods. TEM micrographs of the nanocomposite showed spherical CdSe particles of 4-5 nm in size coated with a biopolymer layer.
Božanić, Dušan K. +5 more
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Chemical Communications, 2003
The novel nanostructures, CdSe-filled silica nanotubes with diameter about 100 nm and length up to several micrometres, were synthesized through a simple thermochemistry method. CdSe nanorods inside the nanotubes are structurally uniform and single crystalline growing along the < 100 > direction.
Baoyou, Geng +4 more
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The novel nanostructures, CdSe-filled silica nanotubes with diameter about 100 nm and length up to several micrometres, were synthesized through a simple thermochemistry method. CdSe nanorods inside the nanotubes are structurally uniform and single crystalline growing along the < 100 > direction.
Baoyou, Geng +4 more
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2021
?????????????? ???????????????????? ?? ???????????????????? ???????????????????????????????????????? (?? = 77 ??) ???????????????? ?? ???????????????????? ?????????????? ?????????????????? CdSe. ?????????????????? ?????????????????????????? ?? ??????, ?????? ???????????????????? ?????????????????? ?????????????????????? ???????????????? ?????????? ?????
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?????????????? ???????????????????? ?? ???????????????????? ???????????????????????????????????????? (?? = 77 ??) ???????????????? ?? ???????????????????? ?????????????? ?????????????????? CdSe. ?????????????????? ?????????????????????????? ?? ??????, ?????? ???????????????????? ?????????????????? ?????????????????????? ???????????????? ?????????? ?????
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2022
?????????????? ???????????????????????????? ???????????????? ???????????????? ?????????????? ???? ?????????????? ?? ???????????????????????? CdSe ?? ?????????????????? 1???5 ????. ????????????????, ???? ?????????? ???????????????????? ?????????????????????? ???? ???????????????????????????? ???????????????????????? Cd????? i SeO???????? ?? ?????????????
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?????????????? ???????????????????????????? ???????????????? ???????????????? ?????????????? ???? ?????????????? ?? ???????????????????????? CdSe ?? ?????????????????? 1???5 ????. ????????????????, ???? ?????????? ???????????????????? ?????????????????????? ???? ???????????????????????????? ???????????????????????? Cd????? i SeO???????? ?? ?????????????
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Amorphous Se/CdSe and SiO x /CdSe multilayers
SPIE Proceedings, 1998Amorphous multilayers based on Se and CdSe alternated sublayers were successfully prepared by thermal vacuum evaporation and laser ablation with the periodicity of 22 nm. The multilayer structure is stable up to approximately 70 degree(s)C. In the samples prepared by laser ablation a large contraction of the multilayer stacking occurs by annealing ...
Mihai A. Popescu +9 more
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Physical Review B, 1993
In transient laser-induced grating experiments, the diffusion coefficients and lifetimes of free excitons are determined in CdSe at temperatures between 2 and 40 K and for different densities. We find that the diffusion coefficient D decreases and that the recombination lifetime ${\mathit{T}}_{1}$ increases with increasing temperature. The increase of $
, Erland +4 more
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In transient laser-induced grating experiments, the diffusion coefficients and lifetimes of free excitons are determined in CdSe at temperatures between 2 and 40 K and for different densities. We find that the diffusion coefficient D decreases and that the recombination lifetime ${\mathit{T}}_{1}$ increases with increasing temperature. The increase of $
, Erland +4 more
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CdSe Nanorods Dominate Photocurrent of Hybrid CdSe−P3HT Photovoltaic Cell
ACS Nano, 2010Photovoltaic devices based on organic semiconductors require charge-separating networks (bulk heterojunctions) for optimal performance. Here we report on the fabrication of organic-inorganic photovoltaic devices with tailored (n-type) CdSe nanorod arrays aligned perpendicularly to the substrate.
Martin, Schierhorn +6 more
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2022
Photoelectrochemical properties of semiconductor films on the basis of CdSe and CdSe???.??????Te???.?????? are studied. It is shown that efficiency of phototransformation increases after modifying of a surface of semi-conductor films for Zn. The reasons of increase in efficiency of photoconversion on modified CdSe-electrodes are analyzed. Efficiency of
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Photoelectrochemical properties of semiconductor films on the basis of CdSe and CdSe???.??????Te???.?????? are studied. It is shown that efficiency of phototransformation increases after modifying of a surface of semi-conductor films for Zn. The reasons of increase in efficiency of photoconversion on modified CdSe-electrodes are analyzed. Efficiency of
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