Auger electron spectroscopy analysis for growth interface of cubic boron nitride single crystals synthesized under high pressure and high temperature

2018 ◽  
Vol 439 ◽  
pp. 780-783 ◽  
Author(s):  
Meizhe Lv ◽  
Bin Xu ◽  
Lichao Cai ◽  
Xiaofei Guo ◽  
Xingdong Yuan
2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Lichao Cai ◽  
Bin Xu ◽  
Meizhe Lv ◽  
Feng Jia ◽  
Xingdong Yuan

Cubic boron nitride (cBN) single crystals are synthesized under high temperature and high pressure in the Li-based system. The growth defects on hexagonal and triangular (111) surfaces of cBN single crystals after rapid cooling are discussed systemically for the first time using the atomic force microscope. Some impurity particles, triangle cone hole defects, lamellar-fault structures, and big steps are obvious on the surfaces of cBN single crystals. The formation mechanism of these defects is analyzed briefly at the synthetic process of cBN single crystals, and the growth mechanism of cBN single crystals transform from the two-dimensional growth to dislocation growth mechanism under high temperature and high pressure.


2002 ◽  
Vol 81 (22) ◽  
pp. 4145-4147 ◽  
Author(s):  
T. Taniguchi ◽  
K. Watanabe ◽  
S. Koizumi ◽  
I. Sakaguchi ◽  
T. Sekiguchi ◽  
...  

1989 ◽  
Vol 162 ◽  
Author(s):  
Koh Era ◽  
Osamu Mishima

ABSTRACTIn cubic boron nitride made by high pressure and high temperature technique in our institute, we have found three luminescence bands in the ultraviolet and the short visible region at room temperature by cathode-ray excitation. They are: a band having vibrational structure and ascribable to undoped state of the crystal, a band ascribable to p-type doping and a band ascribable to n-type doping. Discussion is made on differences between the injection luminescence and the cathodoluminescence. Potentialities and difficulties in realizing the potentialities of cBN for optoelectronic applications are discussed.


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