Characterization of native point defects in GaN by positron annihilation spectroscopy

2000 ◽  
pp. 109-149 ◽  
Author(s):  
K. Saarinen
Keyword(s):  
Positron Annihilation ◽  
Point Defects ◽  
Positron Annihilation Spectroscopy ◽  
Native Point Defects

Evolution of native point defects in ZnO bulk probed by positron annihilation spectroscopy

2009 ◽  
Vol 18 (5) ◽  
pp. 2072-2077 ◽  
Author(s):  
Peng Cheng-Xiao ◽  
Wang Ke-Fan ◽  
Zhang Yang ◽  
Guo Feng-Li ◽  
Weng Hui-Min ◽  
...  
Keyword(s):  
Positron Annihilation ◽  
Point Defects ◽  
Positron Annihilation Spectroscopy ◽  
Native Point Defects

scholarly journals Characterization of point defects in CdTe by positron annihilation spectroscopy

2016 ◽  
Vol 108 (24) ◽  
pp. 242102 ◽  
Author(s):  
M. R. M. Elsharkawy ◽  
G. S. Kanda ◽  
E. E. Abdel-Hady ◽  
D. J. Keeble
Keyword(s):  
Positron Annihilation ◽  
Point Defects ◽  
Positron Annihilation Spectroscopy

Characterizing Native Point Defects in ZnO Bulk by Positron Annihilation Spectroscopy

2008 ◽  
Vol 607 ◽  
pp. 137-139
Author(s):  
C.X. Peng ◽  
Hui Min Weng ◽  
K.F. Wang ◽  
F.L. Guo ◽  
B.J. Ye ◽  
...  
Keyword(s):  
Positron Annihilation ◽  
Point Defects ◽  
Momentum Distribution ◽  
Oxygen Vacancies ◽  
Positron Lifetime ◽  
Annealing Treatment ◽  
Positron Annihilation Spectroscopy ◽  
Electron Momentum ◽  
Electron Momentum Distribution ◽  
Native Point Defects

Positron annihilation spectroscopy was employed to study the native point defects in ZnO single crystal, in combination with calculated results of positron lifetime and electron momentum distribution. The theoretical and experimental results of the positron lifetime in ZnO bulk ensure the presence of zinc monovacancy, and zinc monovacancy concentration begins to decrease above 600oC annealing treatment. Oxygen vacancies have been characterized by coincidence Doppler broadening (CDB) spectroscopy, combined with calculated electron momentum distribution. CDB spectroscopies show that oxygen vacancies don't appear until 600oC annealing treatment, and increase due to ZnO decomposition with annealing temperature rising.

Characterization of ethylcellulose free films by positron annihilation spectroscopy and mechanical testing

2014 ◽  
Vol 115 ◽  
pp. 47-50 ◽  
Author(s):  
Diána Hegyesi ◽  
Károly Süvegh ◽  
András Kelemen ◽  
Klára Pintye-Hódi ◽  
Géza Regdon
Keyword(s):  
Positron Annihilation ◽  
Mechanical Testing ◽  
Positron Annihilation Spectroscopy ◽  
Free Films

scholarly journals Free-volume Characterization of Polysilanes Using Positron Annihilation Spectroscopy.

1999 ◽  
Vol 12 (5) ◽  
pp. 739-742
Author(s):  
Mutsumi Tashiro ◽  
Shu Seki ◽  
Pradeep K. Pujari ◽  
Yoshihide Honda ◽  
Seiichi Tagawa
Keyword(s):  
Positron Annihilation ◽  
Free Volume ◽  
Positron Annihilation Spectroscopy

scholarly journals Microstructural characterization of alumina–zirconia layered ceramics using positron annihilation spectroscopy

2010 ◽  
Vol 58 (8) ◽  
pp. 3014-3021 ◽  
Author(s):  
P. Parente ◽  
Y. Ortega ◽  
B. Savoini ◽  
M.A. Monge ◽  
A. Tucci ◽  
...  
Keyword(s):  
Positron Annihilation ◽  
Microstructural Characterization ◽  
Positron Annihilation Spectroscopy ◽  
Layered Ceramics

Characterization of helium-vacancy complexes in He-ions implanted Fe9Cr by using positron annihilation spectroscopy

2018 ◽  
Vol 505 ◽  
pp. 69-72 ◽  
Author(s):  
Te Zhu ◽  
Shuoxue Jin ◽  
Peng Zhang ◽  
Ligang Song ◽  
Xiangyu Lian ◽  
...  
Keyword(s):  
Positron Annihilation ◽  
Positron Annihilation Spectroscopy

Microstructure characterization of rapidly solidified Al–Fe–Cr–Ce alloy by positron annihilation spectroscopy

2011 ◽  
Vol 509 (7) ◽  
pp. 3211-3218 ◽  
Author(s):  
Alena Michalcová ◽  
Dalibor Vojtěch ◽  
Jakub Čížek ◽  
Ivan Procházka ◽  
Jan Drahokoupil ◽  
...  
Keyword(s):  
Positron Annihilation ◽  
Positron Annihilation Spectroscopy ◽  
Microstructure Characterization ◽  
Rapidly Solidified
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