Structural and Optical Characterization of Light Emitting InGaN/GaN Epitaxial Layers

2006 ◽  
Vol 514-516 ◽  
pp. 38-42 ◽  
Author(s):  
Sergio Pereira ◽  
M.R. Correia ◽  
Eduardo Alves

This paper concerns the structural and optical properties of the group III-V semiconductor alloy, indium gallium nitride (InGaN). We focus on the reasons of interest to study InGaN. Recent advances regarding the basic understanding (ex. accurate composition determination) and some yet unclear issues (ex. phase separation) regarding this material system, are also briefly discussed. Illustrative results on the light emitting and structural properties are presented.

2017 ◽  
Vol 70 ◽  
pp. 16-24 ◽  
Author(s):  
P. Haritha ◽  
I.R. Martín ◽  
C.S. Dwaraka Viswanath ◽  
N. Vijaya ◽  
K. Venkata Krishnaiah ◽  
...  

1989 ◽  
Vol 111 (20) ◽  
pp. 8006-8007 ◽  
Author(s):  
J. E. Mac Dougall ◽  
H. Eckert ◽  
G. D. Stucky ◽  
N. Herron ◽  
Y. Wang ◽  
...  

2011 ◽  
Vol 22 (34) ◽  
pp. 345705 ◽  
Author(s):  
A-L Bavencove ◽  
G Tourbot ◽  
J Garcia ◽  
Y Désières ◽  
P Gilet ◽  
...  

2020 ◽  
Vol 12 (1) ◽  
pp. 116-119
Author(s):  
Nitesh Shukla ◽  
Pravin Kumar Singh ◽  
H. P. Pathak ◽  
D. K. Dwivedi

Thin films of Se90Cd10–xSbx (2 ≤ x ≤ 8) of thickness 0.4 microns were prepared on ultra-clean glass substrate by thermal evaporation technique. The vacuum level was 10–6 torr. This paper intends to investigate the impact of Sb concentration on the optical characterization. XRD measurement has been done to investigate the Structural characterization of the prepared thin films. XRD result indicates the prepared thin have amorphous nature. To analyze the optical characterization of the thin films the absorption spectra were recorded over 400–1100 nm wavelength range. In the present study the optical absorption follows direct allowed transition. An increase in photon energy causes an increase in absorption coefficient while extinction coefficient has been found to increase with an increase in frequency of the photons i.e., deceases with increase of wavelength. Optical bandgap (Eg) of thin films have been studied and an increase in it has been recorded with increasing Sb concentration.


2012 ◽  
Vol 51 (5R) ◽  
pp. 052101
Author(s):  
Sang-Bae Choi ◽  
Si-Young Bae ◽  
Dong-Seon Lee ◽  
Bo Hyun Kong ◽  
Hyung Koun Cho ◽  
...  

Author(s):  
M. Gioti ◽  
D. Tselekidou ◽  
L. Panagiotidis ◽  
V. Kyriazopoulos ◽  
K. Simitzi ◽  
...  

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