Effects of growth temperature on optical and deep level spectroscopy of high‐quality InP grown by metalorganic chemical vapor deposition

1985 ◽  
Vol 57 (8) ◽  
pp. 2788-2792 ◽  
Author(s):  
M. A. A. Pudensi ◽  
K. Mohammed ◽  
J. L. Merz ◽  
D. Kasemset ◽  
K. L. Hess
2011 ◽  
Vol 32 (9) ◽  
pp. 896-901 ◽  
Author(s):  
陈耀 CHEN Yao ◽  
王文新 WANG Wen-xin ◽  
黎艳 LI Yan ◽  
江洋 JIANG Yang ◽  
徐培强 XU Pei-qiang ◽  
...  

2020 ◽  
Vol 65 (1) ◽  
pp. 122-125
Author(s):  
I. S. Ezubchenko ◽  
M. Ya. Chernykh ◽  
I. O. Mayboroda ◽  
I. N. Trun’kin ◽  
I. A. Chernykh ◽  
...  

2007 ◽  
Vol 1040 ◽  
Author(s):  
Vibhu Jindal ◽  
James Grandusky ◽  
Neeraj Tripathi ◽  
Mihir Tungare ◽  
Fatemeh Shahedipour-Sandvik ◽  
...  

AbstractHigh quality homoepitaxial growth of m-plane GaN films on freestanding m-plane HVPE GaN substrates has been performed using metalorganic chemical vapor deposition. For this a large growth space was studied. Large areas of no-nucleation along with presence of high density of defects were observed when layers were grown under growth conditions for c-plane GaN. It is believed that these structural defects were in large part due to the low lateral growth rates as well as unequal lateral growth rates in a- and c- crystallographic directions. To achieve high quality, fully coalesced epitaxial layers, growth conditions were optimized with respect to growth temperature, V/III ratios and reactor pressure. Higher growth temperatures led to smoother surfaces due to increased surface diffusion of adatoms. Overall, growth at higher temperature and lower V/III ratio decreased the surface roughness and resulted in better optical properties as observed by photoluminescence. Although optimization resulted in highly smooth layers, some macroscopic defects were still observed on the epi-surface as a result of contamination and subsurface damage remaining on bulk substrates possibly due to polishing. Addition of a step involving annealing of the bulk substrate under H2: N2 environment, prior to growth, drastically reduced such macroscopic defects.


1995 ◽  
Vol 415 ◽  
Author(s):  
Baolin Zhang ◽  
Tianming Zhou ◽  
Hong Jiang ◽  
Yongqiang Ning ◽  
Shuwei Li ◽  
...  

ABSTRACTQuaternary GaxIn1−xAs1−ySby and ternary GaxIn1−xSb alloys have been grown by metalorganic chemical vapor deposition (MOCVD). The effects of growth parameters on the solid compositions, x, y for GaxIn1−xAs1−ySby and x for GaxIn1−x Sb alloys are described in detail. Concentrations of the reactants have major effects on the corresponding solid compositions in the two kinds of alloys. The growth temperature dependence of the solid compositions in both GaxIn1−xAs1−ySby and GaxIn1−xSb was obviously observed and the growth kinetic factor was considered to account for this dependence. It was found that III/V ratio in vapor has a great effect on x in GaxIn1−xSb alloy but little effect on x and y in GaxIn1−xAs1−ySby alloy.


Sign in / Sign up

Export Citation Format

Share Document