Valence band states and polarized optical emission from nonpolar and semipolar III-nitride quantum well optoelectronic devices

被引：32

作者：

Zhao, Yuji ^{[1
]}

Farrell, Robert M. ^{[1
]}

Wu, Yuh-Renn ^{[2
,3
]}

Speck, James S. ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA

[2] Natl Taiwan Univ, Inst Photon & Optoelect, Taipei 10617, Taiwan

[3] Natl Taiwan Univ, Dept Elect Engn, Taipei 10617, Taiwan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2014年 / 53卷 / 10期

关键词：

LIGHT-EMITTING-DIODES; M-PLANE GAN; EFFECTIVE-MASS PARAMETERS; CONTINUOUS-WAVE OPERATION; A-PLANE; ELECTRONIC-PROPERTIES; V NITRIDES; ANISOTROPY; ALN; ELECTROLUMINESCENCE;

D O I：

10.7567/JJAP.53.100206

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Nonpolar and semipolar III-nitride quantum wells (QWs) and devices have been extensively studied due to their unique valence band (VB) structure and polarized optical emission. Unlike conventional c-plane oriented III-nitride QWs, the low crystal symmetry and unbalanced biaxial stress in nonpolar and semipolar QWs separates the topmost VBs and gives rise to polarized optical emission. Since the first experimental reports on nonpolar devices, research on this topic has progressed very rapidly and has covered nonpolar m-plane and a-plane QWs and devices as well as semipolar (11 (2) over bar2), (20 (2) over bar1), and (20 (2) over bar(1) over bar) QWs and devices. Issues such as strain, plane inclination angle (with respect to the c-plane), indium composition, temperature, and their impact on QW VB structure and device performance have been extensively studied. In this paper we review the physical background and theoretical analysis of the VB states and polarized optical emission of nonpolar and semipolar structures and discuss their potential impacts on optoelectronic devices. Experimental results for nonpolar and semipolar light-emitting diodes and laser diodes will be covered along with additional discussions on the potential applications and challenges related to their unique physical properties. (C) 2014 The Japan Society of Applied Physics

引用

页数：17

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