Possibility of observing quantum size effects in the electromagnetic absorption spectrum of small metal particles

1985 ◽  
Vol 32 (4) ◽  
pp. 1951-1954 ◽  
Author(s):  
R. P. Devaty ◽  
A. J. Sievers
Keyword(s):  
Absorption Spectrum ◽  
Size Effects ◽  
Metal Particles ◽  
Quantum Size Effects ◽  
Quantum Size ◽  
Electromagnetic Absorption ◽  
Small Metal Particles

Ab initio investigation of quantum size effects on the adsorption of CO2, CO, H2O, and H2 on transition-metal particles

2020 ◽  
Vol 22 (16) ◽  
pp. 8998-9008
Author(s):  
Paulo C. D. Mendes ◽  
Vivianne K. Ocampo-Restrepo ◽  
Juarez L. F. Da Silva
Keyword(s):  
Particle Size ◽  
Transition Metal ◽  
Size Effects ◽  
Metal Particles ◽  
Quantum Size Effects ◽  
Preliminary Step ◽  
Quantum Size ◽  
Key Factor ◽  
Adsorption Of Co2 ◽  
Substrate Particle

Adsorption is a crucial preliminary step for the conversion of CO2, then the atomistic understanding of how substrate particle size affects this step could be a key factor to control the catalytic transformations of CO2 into higher-value products.

Quantum Size Effects of Chemical Bath Deposited ZnSe Thin Films

2013 ◽  
Vol 652-654 ◽  
pp. 1743-1746
Author(s):  
Liang Yan Chen ◽  
Chao Fang
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Absorption Spectrum ◽  
Size Effects ◽  
Optical Band Gap ◽  
Quantum Size Effects ◽  
X Ray Diffraction ◽  
X Ray ◽  
Quantum Size ◽  
Znse Thin Films

Quantum dots ZnSe have been deposited through chemical bath deposition in thin films form. The nanoscal grain size of as-deposited and thermal treated ZnSe films have been investigated by X ray Diffraction. And optical band gap of those samples have been obtained from absorption spectrum. Both as-deposited and annealed films were with nanocryatlline grain smaller than the Bohr excitonic radius and showed blue shifts of bandgap in quantum size effects. The blue shifted optical bandgap versus grain size has been modeled theoretically.

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