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Nanostructured ZnO/Y2O3:Eu for use as fillers in luminescent polymer electrolyte composites
Abdullah M.a,c, Panatarani C.a, Kim T.-O.b, Okuyama K.a
a Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, Japan
b Kumoh Natl. Institute of Technology, Sch. of Civ., Environ./Arch. Eng., South Korea
c Department of Physics, Bandung Institute of Technology, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]Nanostructured ZnO/Eu and ZnO/Y2O3:Eu composites have been produced by hydrolizing a mixture of zinc acetate, yttrium acetate and europium acetate in ethanol solution, followed by mixing with lithium hydroxide. By analyzing the ICP data, XRD patterns and luminescence emission spectra we concluded that the europium and yttrium compounds appeared as coating layer on the surface of ZnO nanoparticles. Without heating, these layers were in amorphous state and transformed into crystalline state after annealing at temperatures of above 600°C around 30min. We observed the presence of lithium hydroxide concentration threshold below which no coating layer was formed on the surface of ZnO nanoparticles. The emission intensity of ZnO/Y2O3:Eu was found to increase with increasing annealing temperature, while the crystalline size of Y2O3 (close to 20nm) decreased with increasing the annealing temperature. The powder produced might be used as fillers in luminescent polymer electrolyte composites, which can produce two colors, i.e., red (Eu emission) when excited using a wavelength of around 254nm and green (emitted by ZnO nanoparticles) when excited using a wavelength of around 365nm. © 2004 Elsevier B.V. All rights reserved.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Nanoparticles,Nanostructured composites,Polymer electrolytes,Ultraviolet excitation[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Luminescence,Nanostructured composites,Polymer electrolytes,Rare earth[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]Japan Society for the Promotion of Science (JSPS) Postdoctoral Fellowship for Mikrajuddin is gratefully acknowledged. This work was supported by the New Energy and Industrial Technology Development Organization (NEDO)’s Nanotechnology Materials Program—Nanotechnology Particle Project based on fund provided by the Ministry of Economy, Trade, and Industry (METI), Japan. We thank to Takanori Nakayu for assistantship and Dr. I. Wuled Lenggoro for valuable discussions.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1016/j.jallcom.2004.01.056[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]