Browsing by Author "Chu, Chia-Pu"

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Thermally evaporated In2O3 nanoloquats with oxygen flow-dependent optical emissions
(2008-02-15)
Chu, Chia-Pu
;
Ko, Tsung-Shine
;
Chang, Yu-Cheng
;
Lu, Tien-Chang
;
Kuo, Hao-Chung
We report the synthesis of the In2O3 nanoloquat grown at different oxygen flow rates by using the thermal evaporation method. The gold nanoparticles were used as the catalyst and were dispersed on the silicon wafer to facilitate the growth Of In2O3 nanoloquats. The nanostructures of the In2O3 nanoloquats were characterized by scanning electron microscopy, transmission electron microscopy and X-ray diffraction. The photoluminescence (PL) study reveals that In2O3 nanoloquats could emit different luminescence peaks in the range of 500-600 nm with broad bands by adjusting different oxygen flow rates. The coverage of the wavelength tuning in the emission peaks of the In2O3 nanoloquats could be beneficial for possible applications in white light illumination through manipulating the ratio of each wavelength component. (c) 2007 Published by Elsevier B.V.
Thermally Evaporated In2O3 Nanoloquats with Tunable Broad-Band Emissions
(2008-09-01)
Ko, Tsung-Shine
;
Lu, Tien-Chang
;
Chu, Chia-Pu
;
Kuo, Hao-Chung
;
Wang, Shing-Chung
We describe synthesis of In2O3 nanoloquats grown by thermal evaporation under different oxygen flow rates and temperatures. Gold nanoparticles were used the catalysts and were dispersed on the silicon wafer to assist growth of In2O3 nanoloquats. The nanostructures of In2O3 nanoloquats were characterized by scanning electron microscopy, transmission electron microscopy and X-ray diffraction. The photoluminescence study reveals that In2O3 nanoloquats could emit different broadband luminescence peaks in the range of 410 similar to 620 nm by tuning different oxygen flow rates and temperatures. The wide tuning range in the emission peaks of In2O3 nanoloquats has potential in applications of white light illumination.
Tunable light emissions from thermally evaporated In2O3 nanostructures grown at different growth temperatures
(2008-04-01)
Ko, Tsung-Shine
;
Chu, Chia-Pu
;
Chen, Jun-Rong
;
Lu, Tien-Chang
;
Kuo, Hao-Chung
We report the synthesis of the In2O3 nanostructures grown at different growth temperatures by using the thermal evaporation method. The gold nanoparticles were used as the catalyst and were dispersed on the silicon wafer to facilitate the growth of In2O3 nanostructures. The nanostructures of the In2O3 were characterized by scanning electron microscopy, transmission electron microscopy, and X-ray diffraction. The photo luminescence study reveals that In2O3 nanostructures could emit different luminescence peaks in the range of 400-600 nm with broad bands by adjusting different growth temperatures. The coverage of the wavelength tuning in the emission peaks of the In2O3 nanostructures could be beneficial for possible applications in white light illumination through manipulating the ratio of each wavelength component. (C) 2007 Elsevier B.V. All rights reserved.