Synthesis and Photo-Luminescent Properties of YVO4:Pr3+ Phosphors
碩士 === 國立虎尾科技大學 === 光電與材料科技研究所在職專班 === 101 === In this study, YVO4 was selected as the host material and doped with different concentrations of Pr3+ ions which were synthesized using solid-state reaction method. The structure, micrographics and photoluminescence properties of the synthesized phospho...
Main Authors: | , |
---|---|
Other Authors: | |
Format: | Others |
Language: | zh-TW |
Published: |
2013
|
Online Access: | http://ndltd.ncl.edu.tw/handle/jqcbh5 |
id |
ndltd-TW-101NYPI5124085 |
---|---|
record_format |
oai_dc |
spelling |
ndltd-TW-101NYPI51240852019-09-22T03:41:15Z http://ndltd.ncl.edu.tw/handle/jqcbh5 Synthesis and Photo-Luminescent Properties of YVO4:Pr3+ Phosphors YVO4:Pr3+螢光粉之合成及光致發光特性研究 Yu-Ming Wang 王祐銘 碩士 國立虎尾科技大學 光電與材料科技研究所在職專班 101 In this study, YVO4 was selected as the host material and doped with different concentrations of Pr3+ ions which were synthesized using solid-state reaction method. The structure, micrographics and photoluminescence properties of the synthesized phosphors were investigated by powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and fluorescence spectrophotometer, respectively. The XRD results showed that the crystal structure of YVO4:Pr3+ phosphors calcined 1100℃for 8 hr can be attributed to the Orthorhombic structure for YVO4. The SEM images show the particles are irregular, but more uniform distribution for Pr3+ ion concentration is 0.3 mol%. The excitation spectra of YVO4:Pr3+ shows a broad excitation band in the wavelength range of 250-350 nm resulting from the charge transfer transition of Pr3+-O2-. In the wavelength region of 450-500 nm, originates from the f-f transition of 3H4-3P2 within Pr3+ 4f electron configuration. The emission spectra for YVO4:Pr3+ phosphor show that there are the 3P0→3H4, 3H5, 3H6 and 1D2→3H4 transition of Pr3+ ion under an excitation wavelength of 458 nm. The maximum emission intensity is obtained for YVO4 doped with 0.3 mol% Pr3+ ions with a CIE chromaticity coordinates of (x=0.272, y=0.188) and Rc=18.51Å. Hui-Chi Lin 林蕙琪 2013 學位論文 ; thesis 73 zh-TW |
collection |
NDLTD |
language |
zh-TW |
format |
Others
|
sources |
NDLTD |
description |
碩士 === 國立虎尾科技大學 === 光電與材料科技研究所在職專班 === 101 === In this study, YVO4 was selected as the host material and doped with different concentrations of Pr3+ ions which were synthesized using solid-state reaction method. The structure, micrographics and photoluminescence properties of the synthesized phosphors were investigated by powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and fluorescence spectrophotometer, respectively.
The XRD results showed that the crystal structure of YVO4:Pr3+ phosphors calcined 1100℃for 8 hr can be attributed to the Orthorhombic structure for YVO4. The SEM images show the particles are irregular, but more uniform distribution for Pr3+ ion concentration is 0.3 mol%. The excitation spectra of YVO4:Pr3+ shows a broad excitation band in the wavelength range of 250-350 nm resulting from the charge transfer transition of Pr3+-O2-. In the wavelength region of 450-500 nm, originates from the f-f transition of 3H4-3P2 within Pr3+ 4f electron configuration. The emission spectra for YVO4:Pr3+ phosphor show that there are the 3P0→3H4, 3H5, 3H6 and 1D2→3H4 transition of Pr3+ ion under an excitation wavelength of 458 nm. The maximum emission intensity is obtained for YVO4 doped with 0.3 mol% Pr3+ ions with a CIE chromaticity coordinates of (x=0.272, y=0.188) and Rc=18.51Å.
|
author2 |
Hui-Chi Lin |
author_facet |
Hui-Chi Lin Yu-Ming Wang 王祐銘 |
author |
Yu-Ming Wang 王祐銘 |
spellingShingle |
Yu-Ming Wang 王祐銘 Synthesis and Photo-Luminescent Properties of YVO4:Pr3+ Phosphors |
author_sort |
Yu-Ming Wang |
title |
Synthesis and Photo-Luminescent Properties of YVO4:Pr3+ Phosphors |
title_short |
Synthesis and Photo-Luminescent Properties of YVO4:Pr3+ Phosphors |
title_full |
Synthesis and Photo-Luminescent Properties of YVO4:Pr3+ Phosphors |
title_fullStr |
Synthesis and Photo-Luminescent Properties of YVO4:Pr3+ Phosphors |
title_full_unstemmed |
Synthesis and Photo-Luminescent Properties of YVO4:Pr3+ Phosphors |
title_sort |
synthesis and photo-luminescent properties of yvo4:pr3+ phosphors |
publishDate |
2013 |
url |
http://ndltd.ncl.edu.tw/handle/jqcbh5 |
work_keys_str_mv |
AT yumingwang synthesisandphotoluminescentpropertiesofyvo4pr3phosphors AT wángyòumíng synthesisandphotoluminescentpropertiesofyvo4pr3phosphors AT yumingwang yvo4pr3yíngguāngfěnzhīhéchéngjíguāngzhìfāguāngtèxìngyánjiū AT wángyòumíng yvo4pr3yíngguāngfěnzhīhéchéngjíguāngzhìfāguāngtèxìngyánjiū |
_version_ |
1719254837501100032 |