scholarly journals Effective medium approximation of the optical properties of electrochromic cerium-titanium oxide compounds

1997 ◽  
Author(s):  
Nik von Rottkay ◽  
Terry J. Richardson ◽  
Michael Rubin ◽  
J. Slack ◽  
Enrico Masetti ◽  
...  
Keyword(s):  
Optical Properties ◽  
Titanium Oxide ◽  
Effective Medium ◽  
Effective Medium Approximation

Employing the effective medium approximation to model the optical properties of crystallized a-Si:H obtained by MIC

2010 ◽  
pp. NA-NA
Author(s):  
T. F. G. Muller ◽  
D. Knoesen ◽  
C. J. Arendse ◽  
S. Halindintwali ◽  
G. F. Malgas ◽  
...  
Keyword(s):  
Optical Properties ◽  
Effective Medium ◽  
Effective Medium Approximation

A Simple Optical Properties Modeling of Microcrystalline Silicon by the Effective Medium Approximation Method

1996 ◽  
Vol 426 ◽  
Author(s):  
Woo Yeong Cho ◽  
Koeng Su Lim ◽  
Hyun-Mo Cho
Keyword(s):  
Optical Properties ◽  
Approximation Method ◽  
Volume Fraction ◽  
Crystalline Silicon ◽  
Solar Spectrum ◽  
Effective Medium ◽  
Effective Medium Approximation ◽  
Microcrystalline Silicon ◽  
Two Phase ◽  
P Type

AbstractThe optical properties of microcrystalline silicon (µc-Si) were estimated using the EMA (Effective Medium Approximation) method. This modeling was based on two-phase mixture, amorphous silicon (a-Si) and crystalline silicon (c-Si) with volume fractions of fa and fc respectively. From this modeling, it could be possible to understand thatµc-Si has lower light absorption characteristics than a-Si over all solar spectrum by considering hydrogen involvement in embedded a-Si part of iic-Si and crystalline volume fraction. Also, it is proposed that p-type pe- Si is superior to n-type tic-Si because of its high optical gap of Eo4 and its low absorption coefficient spectrum shape.

Optical Properties of CdS and CdTe Sensitized ZnO Nanorods

2014 ◽  
Vol 1707 ◽  
Author(s):  
C. J. Pereyra ◽  
F. Ferrer ◽  
R. E. Marotti ◽  
C. Gómez ◽  
L. Campo ◽  
...  
Keyword(s):  
Optical Properties ◽  
Numerical Simulations ◽  
Diffuse Reflectance ◽  
Zno Nanorods ◽  
Effective Medium ◽  
Red Shift ◽  
Band Edge ◽  
Effective Medium Approximation ◽  
Core Shell ◽  
Sensitive Dependence

ABSTRACTOptical properties of ZnO-CdTe electrochemically prepared on a core-shell nanostructure (NS) were studied. Numerical simulations based on effective medium approximation give higher absorption than ZnO-CdS samples and a sensitive dependence on CdTe content. The absorption edges for deep black samples found by transmittance (T(λ)) and diffuse reflectance (Rdiff(λ)) measurements were at 1.33eV and 1.55eV, respectively. A split-off band edge was also found by Rdiff(λ) at ∼2.5eV. The red shift observed in T(λ), previously observed in ZnO-CdS, and may confirm the enhancement of sub-bandgap absorption due to the NS nature of samples.

A Simple Optical Properties Modeling of Microcrystalline Silicon by the Effective Medium Approximation Method

1996 ◽  
Vol 420 ◽  
Author(s):  
Woo Yeong Cho ◽  
Hyun-Mo Cho ◽  
Koeng Su Lim
Keyword(s):  
Optical Properties ◽  
Approximation Method ◽  
Volume Fraction ◽  
Crystalline Silicon ◽  
Solar Spectrum ◽  
Effective Medium ◽  
Effective Medium Approximation ◽  
Microcrystalline Silicon ◽  
Two Phase ◽  
P Type

AbstractThe optical properties of microcrystalline silicon (μc-Si) were estimated using the EMA (Effective Medium Approximation) method. This modeling was based on two-phase mixture, amorphous silicon (a-Si) and crystalline silicon (c-Si) with volume fractions of fa and fc respectively. From this modeling, it could be possible to understand that μc-Si has lower light absorption characteristics than a-Si over all solar spectrum by considering hydrogen involvement in embedded a-Si part of μc-Si and crystalline volume fraction. Also, it is proposed that p-type μc-Si is superior to n-type μc-Si because of its high optical gap of Eo4 and its low absorption coefficient spectrum shape.

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