Defect reduced selectively grown GaN pyramids as template for green InGaN quantum wells
Defect reduced selectively grown GaN pyramids as template for green InGaN quantum wells
复制标题
缺陷减少的选择性生长 GaN 金字塔作为绿色 InGaN 量子阱的模板
DOI:
10.1002/pssb.201552427
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
P. Michler
中科院分区:
文献类型:
--
作者:
J. Wagner;C. Wächter;J. Wild;M. Müller;S. Metzner;P. Veit;G. Schmidt;M. Jetter;F. Bertram;J. Zweck;J. Christen;P. Michler
Abstractauthoren We report the growth of green emitting InGaN quantum wells (QWs) by metal‐organic vapor‐phase epitaxy (MOVPE) on three‐dimensional GaN templates. The facets of GaN pyramids, fabricated by selective‐area growth (SAG), reduce the influence of the quantum‐confined Stark effect (QCSE) on the emission properties of the QW. The luminescence properties of a QW are a good indicator for the crystalline quality of the GaN layer beneath. Especially the presence of voids inside the pyramids, as well as stacking faults (SFs) and threading dislocations (TDs) in the wing region strongly influence the strain situation and the incorporation of In into the overlying InGaN layer. Thus, the crystal quality of the GaN pyramid has a strong influence on the efficiency and the emission properties of the active region. Therefore, a low‐temperature nucleation on the GaN buffer in conjunction with a decreasing Ga‐flux taking the decreasing c‐plane growth surface of the pyramid into account was introduced. The low‐temperature photoluminescence (PL) properties of the InGaN QW reveal the differences between the standard formation of the pyramid and this modified growth. Cathodoluminescence (CL) and transmission electron microscopy (TEM) measurements confirm the differences between the two growth modes in the crystal quality of the inner part of the pyramid.
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影响因子:
4
作者:
Fini, P;Munkholm, A;Speck, JS
通讯作者:
Speck, JS
DOI:
10.1143/jjap.45.l659
发表时间:
2006-07-01
期刊:
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS
影响因子:
--
作者:
Funato, Mitsuru;Ueda, Masaya;Mukai, Takashi
通讯作者:
Mukai, Takashi
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
C. Wächter;Alexander M Meyer;S. Metzner;M. Jetter;F. Bertram;J. Christen;P. Michler
通讯作者:
P. Michler
影响因子:
1.4
作者:
CHRISTEN, J;GRUNDMANN, M;BIMBERG, D
通讯作者:
BIMBERG, D
影响因子:
3.2
作者:
Romanov, A. E.;Baker, T. J.;Speck, J. S.
通讯作者:
Speck, J. S.