Optical properties of zinc tungstate powder grown by microwave-assisted synthesis
碩士 === 國立臺灣海洋大學 === 電機工程學系 === 100 === Zinc tungstate nanopowder (ZnWO4 NP) were successfully prepared by microwave-assisted synthesis and calcinated at different temperatures in the range of 300 − 900 oC. The structural and optical properties of the as-synthesized and calcinated ZnWO4 NPs are inves...
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ndltd-TW-100NTOU54420602015-10-13T22:01:08Z http://ndltd.ncl.edu.tw/handle/88429922197431085969 Optical properties of zinc tungstate powder grown by microwave-assisted synthesis 以微波輔助合成法成長鎢酸鋅粉體之光學特性研究 Bo-Yao Hong 洪博耀 碩士 國立臺灣海洋大學 電機工程學系 100 Zinc tungstate nanopowder (ZnWO4 NP) were successfully prepared by microwave-assisted synthesis and calcinated at different temperatures in the range of 300 − 900 oC. The structural and optical properties of the as-synthesized and calcinated ZnWO4 NPs are investigated by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Raman scattering, photoluminescence (PL), and time-resolved photoluminescence (TRPL) measurements. The XRD patterns exhibit significant wolframite structure of ZnWO4 NPs at calcination temperatures above 300 oC FTIR and Raman spectra show respectively, the variation of different absorption and Raman signals as a function of calcination temperature. In addition, the 15 K PL and TRPL results demonstrated that the deformation of WO6 octahedra is responsible for the low-energy side of PL spectra and dominate the red-shifted PL spectra with increasing calcination temperatures. Kwong-Kau Tiong Shih-Wei Tan Yueh-Chien Lee 程光蛟 譚仕煒 李粵堅 2012 學位論文 ; thesis 53 zh-TW |
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碩士 === 國立臺灣海洋大學 === 電機工程學系 === 100 === Zinc tungstate nanopowder (ZnWO4 NP) were successfully prepared by microwave-assisted synthesis and calcinated at different temperatures in the range of 300 − 900 oC. The structural and optical properties of the as-synthesized and calcinated ZnWO4 NPs are investigated by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Raman scattering, photoluminescence (PL), and time-resolved photoluminescence (TRPL) measurements.
The XRD patterns exhibit significant wolframite structure of ZnWO4 NPs at calcination temperatures above 300 oC FTIR and Raman spectra show respectively, the variation of different absorption and Raman signals as a function of calcination temperature. In addition, the 15 K PL and TRPL results demonstrated that the deformation of WO6 octahedra is responsible for the low-energy side of PL spectra and dominate the red-shifted PL spectra with increasing calcination temperatures.
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author2 |
Kwong-Kau Tiong |
author_facet |
Kwong-Kau Tiong Bo-Yao Hong 洪博耀 |
author |
Bo-Yao Hong 洪博耀 |
spellingShingle |
Bo-Yao Hong 洪博耀 Optical properties of zinc tungstate powder grown by microwave-assisted synthesis |
author_sort |
Bo-Yao Hong |
title |
Optical properties of zinc tungstate powder grown by microwave-assisted synthesis |
title_short |
Optical properties of zinc tungstate powder grown by microwave-assisted synthesis |
title_full |
Optical properties of zinc tungstate powder grown by microwave-assisted synthesis |
title_fullStr |
Optical properties of zinc tungstate powder grown by microwave-assisted synthesis |
title_full_unstemmed |
Optical properties of zinc tungstate powder grown by microwave-assisted synthesis |
title_sort |
optical properties of zinc tungstate powder grown by microwave-assisted synthesis |
publishDate |
2012 |
url |
http://ndltd.ncl.edu.tw/handle/88429922197431085969 |
work_keys_str_mv |
AT boyaohong opticalpropertiesofzinctungstatepowdergrownbymicrowaveassistedsynthesis AT hóngbóyào opticalpropertiesofzinctungstatepowdergrownbymicrowaveassistedsynthesis AT boyaohong yǐwēibōfǔzhùhéchéngfǎchéngzhǎngwūsuānxīnfěntǐzhīguāngxuétèxìngyánjiū AT hóngbóyào yǐwēibōfǔzhùhéchéngfǎchéngzhǎngwūsuānxīnfěntǐzhīguāngxuétèxìngyánjiū |
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