Preparation, characterization and high quantum efficiency of yellow-emitting CsVO3 nanofibers

Xuebin Qiao; Yuze Li; Yingpeng Wan; Yanlin Huang; Han Cheng; Hyo Jin Seo

doi:10.1016/j.jallcom.2015.10.022

Preparation, characterization and high quantum efficiency of yellow-emitting CsVO₃ nanofibers

Xuebin Qiao
, Yuze Li
, Yingpeng Wan
, Yanlin Huang
, Han Cheng
, Hyo Jin Seo

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

23 Citations (Scopus)

Abstract

The self-activated yellow-emitting CsVO₃ nanofibers were prepared by the hydrothermal reaction method. The structural refinement was conducted on the base of XRD measurement. The surface properties of the CsVO₃ nanofibers were investigated using Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), and Energy Dispersive Spectrometry (EDS). One of the morphological characterizations is the high length-diameter ratio with diameters of 100-150 nm and lengths of tens of micrometers. The UV-vis absorption spectrum and the electronic band structures of CsVO₃ nanofiber show a direct allowed electronic gap with band energy of 2.997 eV. The luminescence properties such as photoluminescence spectra, decay lifetime, color coordinates and the absolute internal quantum efficiency (η) were studied. Notably, CsVO₃ nanofibers present a bright yellow luminescence with a high quantum efficiency of 85%. It is suggested that CsVO₃ nanofibers could be used for efficient lighting and display. © 2015 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	843-848
Journal	Journal of Alloys and Compounds
Volume	656
DOIs	https://doi.org/10.1016/j.jallcom.2015.10.022
Publication status	Published - 25 Jan 2016
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

This work was supported by Mid-career Researcher Program through National Research Foundation of Korea (NRF) grant funded by the Ministry of Education, Science and Technology (MEST) (Project No. 2009-0078682 ) and supported by National Natural Science Foundation of China (No. 61405081 ) and the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), China.

Research Keywords

Luminescence
Nanocrystalline materials
Optical materials and properties
Semiconductors
Vanadate

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title = "Preparation, characterization and high quantum efficiency of yellow-emitting CsVO3 nanofibers",

abstract = "The self-activated yellow-emitting CsVO3 nanofibers were prepared by the hydrothermal reaction method. The structural refinement was conducted on the base of XRD measurement. The surface properties of the CsVO3 nanofibers were investigated using Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), and Energy Dispersive Spectrometry (EDS). One of the morphological characterizations is the high length-diameter ratio with diameters of 100-150 nm and lengths of tens of micrometers. The UV-vis absorption spectrum and the electronic band structures of CsVO3 nanofiber show a direct allowed electronic gap with band energy of 2.997 eV. The luminescence properties such as photoluminescence spectra, decay lifetime, color coordinates and the absolute internal quantum efficiency (η) were studied. Notably, CsVO3 nanofibers present a bright yellow luminescence with a high quantum efficiency of 85\%. It is suggested that CsVO3 nanofibers could be used for efficient lighting and display. {\textcopyright} 2015 Elsevier B.V. All rights reserved.",

keywords = "Luminescence, Nanocrystalline materials, Optical materials and properties, Semiconductors, Vanadate",

author = "Xuebin Qiao and Yuze Li and Yingpeng Wan and Yanlin Huang and Han Cheng and Seo, \{Hyo Jin\}",

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AU - Qiao, Xuebin

AU - Li, Yuze

AU - Wan, Yingpeng

AU - Huang, Yanlin

AU - Cheng, Han

AU - Seo, Hyo Jin

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N2 - The self-activated yellow-emitting CsVO3 nanofibers were prepared by the hydrothermal reaction method. The structural refinement was conducted on the base of XRD measurement. The surface properties of the CsVO3 nanofibers were investigated using Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), and Energy Dispersive Spectrometry (EDS). One of the morphological characterizations is the high length-diameter ratio with diameters of 100-150 nm and lengths of tens of micrometers. The UV-vis absorption spectrum and the electronic band structures of CsVO3 nanofiber show a direct allowed electronic gap with band energy of 2.997 eV. The luminescence properties such as photoluminescence spectra, decay lifetime, color coordinates and the absolute internal quantum efficiency (η) were studied. Notably, CsVO3 nanofibers present a bright yellow luminescence with a high quantum efficiency of 85%. It is suggested that CsVO3 nanofibers could be used for efficient lighting and display. © 2015 Elsevier B.V. All rights reserved.

AB - The self-activated yellow-emitting CsVO3 nanofibers were prepared by the hydrothermal reaction method. The structural refinement was conducted on the base of XRD measurement. The surface properties of the CsVO3 nanofibers were investigated using Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), and Energy Dispersive Spectrometry (EDS). One of the morphological characterizations is the high length-diameter ratio with diameters of 100-150 nm and lengths of tens of micrometers. The UV-vis absorption spectrum and the electronic band structures of CsVO3 nanofiber show a direct allowed electronic gap with band energy of 2.997 eV. The luminescence properties such as photoluminescence spectra, decay lifetime, color coordinates and the absolute internal quantum efficiency (η) were studied. Notably, CsVO3 nanofibers present a bright yellow luminescence with a high quantum efficiency of 85%. It is suggested that CsVO3 nanofibers could be used for efficient lighting and display. © 2015 Elsevier B.V. All rights reserved.

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