Positron annihilation lifetime and photoluminescence studies on single crystalline ZnO

被引：19

作者：

Sarkar, A. ^{[1
]}

Chakrabarti, Mahuya ^{[2
]}

Ray, S. K. ^{[3
]}

Bhowmick, D. ^{[4
]}

Sanyal, D. ^{[4
]}

机构：

[1] Bangabasi Morning Coll, Dept Phys, Kolkata 700009, India

[2] Univ Calcutta, Dept Phys, Kolkata 700009, India

[3] Indian Inst Technol, Dept Phys & Meteorol, Kharagpur 721302, W Bengal, India

[4] Ctr Variable Energy Cyclotron, Kolkata 700064, India

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2011年 / 23卷 / 15期

关键词：

TEMPERATURE-DEPENDENCE; ENERGY-GAP; DEFECTS; EXCITON;

D O I：

10.1088/0953-8984/23/15/155801

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The room temperature positron annihilation lifetime for single crystalline ZnO has been measured as 164 +/- 1 ps. The single component lifetime value is very close to but higher than the theoretically predicted value of similar to 154 ps. Photoluminescence study ( at 10 K) indicates the presence of hydrogen and other defects, mainly acceptor related, in the crystal. Defects related to a lower open volume than zinc vacancies, presumably a complex with two hydrogen atoms, are the major trapping sites in the sample. The bulk positron lifetime in ZnO is expected to be a little less than 164 ps.

引用

页数：5

共 50 条

[41] THE USE OF CSF DETECTORS IN LIFETIME SPECTROMETERS FOR POSITRON-ANNIHILATION STUDIES
DAUWE, C
MOTOKOKWETE
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1986, 251 (02): : 321 - 326
[42] THE APPLICATION OF POSITRON-ANNIHILATION LIFETIME SPECTROSCOPY TO THE STUDY OF GLASSY AND PARTIALLY CRYSTALLINE MATERIALS
ZIPPER, MD
HILL, AJ
MATERIALS FORUM, 1994, 18 : 215 - 233
[43] DETECTION OF THE PLASTIC-CRYSTALLINE TRANSITION OF TRIOXANE BY POSITRON-ANNIHILATION LIFETIME SPECTROSCOPY
RODRIGUEZ, C
MORALES, C
LOPEZCASTANARES, R
SANCHEZ, V
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1995, 91 (18): : 3185 - 3187
[44] STUDIES ON DEFECT OF Ni ELECTRODEPOSITS MEANS OF POSITRON ANNIHILATION LIFETIME SPECTROSCOPY
Yao Shibing
Chen Rongqin
Fang Jianlin
Chen Binyi
Zhong Chanxing
Zhou Shaomin
ACTA PHYSICO-CHIMICA SINICA, 1985, 1 (03) : 215 - 221
[45] POSITRON ANNIHILATION LIFETIME SPECTROSCOPY OF PROTEINS
GREGORY, RB
BIOPHYSICAL JOURNAL, 1988, 53 (02) : A476 - A476
[46] Positron annihilation lifetime of irradiated polyimide
Hirade, Tetsuya
Oka, Toshitaka
Morishita, Norio
Idesaki, Akira
Shimada, Akihiko
POSITRON AND POSITRONIUM CHEMISTRY X, 2013, 733 : 151 - +
[47] A compact positron annihilation lifetime spectrometer
李道武
刘军辉
章志明
王宝义
张天保
魏龙
中国物理C, 2011, 35 (01) : 100 - 103
[48] Interaction of hydrogen with defects in ZnO nanoparticles - studied by positron annihilation, Raman and photoluminescence spectroscopy
Xue, Xudong
Wang, Tao
Jiang, Xudong
Jiang, Jing
Pan, Chunxu
Wu, Yichu
CRYSTENGCOMM, 2014, 16 (06): : 1207 - 1216
[49] Tomographic Positron Annihilation Lifetime Spectroscopy
Wagner, A.
Anwand, W.
Butterling, M.
Fiedler, F.
Fritz, F.
Kempe, M.
Cowan, T. E.
13TH INTERNATIONAL WORKSHOP ON SLOW POSITRON BEAM TECHNIQUES AND APPLICATIONS (SLOPOS13), 2014, 505
[50] Vacancy-Type Defects and Their Evolution under Mn Substitution in Single Crystalline ZnO Nanocones Studied by Positron Annihilation
Ghoshal, Tandra
Kar, Soumitra
Biswas, Subhajit
De, S. K.
Nambissan, P. M. G.
JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (09): : 3419 - 3425

← 1 2 3 4 5 →