Two-dimensional correlation analysis of the time-resolved photoluminescence spectra of gallium nitride nanowires

被引：6

作者：

Chon, Bonghwan ^{[1
]}

Ryu, Soo Ryeon ^{[2
]}

Hong, Young-Joon ^{[3
]}

Yoo, Jinkyoung ^{[3
]}

Yi, Gyu-Chul ^{[3
]}

Joo, Taiha ^{[1
]}

Jung, Young Mee ^{[2
]}

机构：

[1] POSTECH, Dept Chem, Pohang 790784, South Korea

[2] Kangwon Natl Univ, Dept Chem, Chunchon 200701, South Korea

[3] POSTECH, Dept Mat Sci & Engn, Natl CRI Ctr Semicond Nanorods, Pohang 790784, South Korea

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2008年 / 883卷 / 209-215期

基金：

新加坡国家研究基金会;

关键词：

GaN nanowires; time-resolved photoluminescence spectra; two-dimensional (2D) correlation spectroscopy; PCA2D correlation spectroscopy; eigenvalue manipulating transformation (EMT); self-modeling curve resolution (SMCR) analysis;

D O I：

10.1016/j.molstruc.2007.11.026

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Principal component analysis based two-dimensional (PCA2D) correlation spectroscopy combined with the eigenvalue manipulating transformation (EMT) technique by lowering the power of a set of eigenvalues associated with the original data has been employed to interpret the time-resolved photoluminescence spectra of gallium nitride (GaN) nanowires. PCA2D correlation spectra with EMT operation successfully extracted the substantial contribution of minor components, by emphasizing the neutral-acceptor-bound exciton band and surface-related state band. Upon application of PCA2D correlation analysis in conjunction with the self-modeling curve resolution technique, we were able to not only resolve the spectra and determine the sequence of spectral changes but also extract the individual spectra, which had not been possible from a simple examination of the original 1D spectra. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：209 / 215

页数：7

共 35 条

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