The structure and optoelectronic properties of dislocations in GaN

被引:28
作者
Cherns, D [1 ]
机构
[1] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England
关键词
D O I
10.1088/0953-8984/12/49/320
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
This paper reviews the structure of threading dislocations, nanopipes and inversion domains in (0001) GaN films grown by metal-organic chemical vapour deposition. A new mechanism for generation of misfit dislocations in epitaxial laterally overgrown (ELOG) GaN and in AlGaN/GaN interfaces is described. Recent cathodoluminescence studies in the scanning electron microscope are described, showing that individual threading defects act as non-radiative recombination centres in ELOG GaN and in InGaN quantum wells in GaN.
引用
收藏
页码:10205 / 10212
页数:8
相关论文
共 17 条
[11]   Derivation of growth mechanism of nano-defects in GaN from TEM data [J].
Liliental-Weber, Z .
JOURNAL OF ELECTRON MICROSCOPY, 2000, 49 (02) :339-348
[12]  
LILIENTALWEBER Z, UNPUB
[13]  
MATTHEWS JW, 1979, DISLOCATIONS SOLIDS, V2, P461
[14]   Characterization of dislocations in GaN by transmission electron diffraction and microscopy techniques [J].
Ponce, FA ;
Cherns, D ;
Young, WT ;
Steeds, JW .
APPLIED PHYSICS LETTERS, 1996, 69 (06) :770-772
[15]   Correlation of cathodoluminescence inhomogeneity with microstructural defects in epitaxial GaN grown by metalorganic chemical-vapor deposition [J].
Rosner, SJ ;
Carr, EC ;
Ludowise, MJ ;
Girolami, G ;
Erikson, HI .
APPLIED PHYSICS LETTERS, 1997, 70 (04) :420-422
[16]   Direct evidence that dislocations are non-radiative recombination centers in GaN [J].
Sugahara, T ;
Sato, H ;
Hao, MS ;
Naoi, Y ;
Kurai, S ;
Tottori, S ;
Yamashita, K ;
Nishino, K ;
Romano, LT ;
Sakai, S .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1998, 37 (4A) :L398-L400
[17]  
TAKEUCHI T, 1997, JPN J APPL PHYS, V36, pL74