mirage

Investigation of structured green-band emission and electron−phonon interactions in vertically aligned ZnO nanowires

DSpace/Manakin Repository

 

Search DR-NTU


Advanced Search Subject Search

Browse

My Account

Investigation of structured green-band emission and electron−phonon interactions in vertically aligned ZnO nanowires

Show full item record

Title: Investigation of structured green-band emission and electron−phonon interactions in vertically aligned ZnO nanowires
Author: Chen, Rui; Tay, Yee Yan; Ye, Jun; Zhao, Yang; Xing, Guozhong; Wu, Tom; Sun, Handong
Copyright year: 2010
Abstract: We have investigated the green band (GB) emission from vertically aligned ZnO nanowires (NWs) prepared by vapor−liquid−solid growth technique. At low temperatures, the GB emission consists of two sets of zero phonon lines and their phonon replicas independent of the laser excitation power. Temperature-dependent photoluminescence (PL) measurement is performed at temperatures from 10 to 300 K, and the thermal evolution of peak widths and the origin of PL quenching at high temperatures are discussed in detail. The multimode Brownian oscillator model is adopted to reproduce the structured GB and to determine the Huang−Rhys factor. It is found that the two electronic transitions are strongly coupled to different LO phonon modes, and the size-dependent electron−phonon coupling strength is examined.
Subject: DRNTU::Engineering::Materials::Photonics and optoelectronics materials.
Type: Journal Article
Series/ Journal Title: Journal of physical chemistry C
School: School of Materials Science and Engineering
Rights: © 2010 American Chemical Society

Files in this item

Files Size Format View

There are no files associated with this item.

   

DOI Query

- Get published version (via Digital Object Identifier)
   

This item appears in the following Collection(s)

Show full item record