Er‐related deep centers in GaAs doped with Er by ion implantation and molecular beam epitaxy

1995 ◽  
Vol 77 (8) ◽  
pp. 3919-3926 ◽  
Author(s):  
D. W. Elsaesser ◽  
Y. K. Yeo ◽  
R. L. Hengehold ◽  
K. R. Evans ◽  
F. L. Pedrotti
2012 ◽  
Vol 5 (3) ◽  
pp. 035201 ◽  
Author(s):  
Giuliana Impellizzeri ◽  
Lucia Romano ◽  
Lorenzo Bosco ◽  
Corrado Spinella ◽  
Maria Grazia Grimaldi

2008 ◽  
Vol 51 (10) ◽  
pp. 1001-1015 ◽  
Author(s):  
A. V. Voitsekhovskii ◽  
D. V. Grigor’ev ◽  
N. Kh. Talipov

1996 ◽  
Vol 169 (4) ◽  
pp. 637-642 ◽  
Author(s):  
Liwu Lu ◽  
Songlin Feng ◽  
Jiben Liang ◽  
Zhanguo Wang ◽  
J. Wang ◽  
...  

1988 ◽  
Vol 144 ◽  
Author(s):  
B.J. Skromme ◽  
N.G. Stoffel ◽  
A.S. Gozdz ◽  
M.C. Tamargo ◽  
S.M. Shibli

ABSTRACTWe describe the effects of rapid thermal annealing on the photoluminescence (PL) and electrical properties of heteroepitaxial ZnSe grown by molecular beam epitaxy on GaAs, using either no cap or plasma-deposited SiO2, Si3N4, or diamond-like C caps, and annealing temperatures from 500 to 800°C. Capless anneals (in contact with GaAs) produce badly degraded PL properties, while capped anneals can prevent this degradation. We show that Si3N4 is significantly more effective in preventing Zn out-diffusion through t e cap than previously employed SiO2 films, as evidenced by less pronounced PL features related to the creation of Zn vacancies during the anneal. Implant damage tends to enhance the Zn vacancy formation. Rapid thermal annealing with Si3N4 caps is shown to optically activate shallow N acceptor implants.


1986 ◽  
Vol 49 (18) ◽  
pp. 1184-1186 ◽  
Author(s):  
Yunosuke Makita ◽  
Yoshinori Takeuchi ◽  
Nobukazu Ohnishi ◽  
Toshio Nomura ◽  
Kazuhiro Kudo ◽  
...  

2000 ◽  
Vol 5 (S1) ◽  
pp. 943-949 ◽  
Author(s):  
Z-Q. Fang ◽  
D. C. Look ◽  
Wook Kim ◽  
H. Morkoç

Deep centers in Si-doped n-GaN samples grown on sapphire by reactive molecular beam epitaxy, using different ammonia flow rates (AFRs), have been studied by deep level transient spectroscopy. In addition to five electron traps, which were also found in n-GaN layers grown by both metalorganic chemical-vapor deposition and hydride vapor-phase epitaxy, two new centers C1 (0.43-0.48 eV) and E1 (0.25 eV) have been observed. C1, whose parameters show strong electric-field effects and anomalous electron capture kinetics, might be associated with dislocations. E1, which is very dependent on the AFR, exhibits an activation energy close to that of a center created by electron irradiation and is believed to be a defect complex involving VN.


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