[vc_empty_space][vc_empty_space]
Photoluminescent and crystalline properties of Y3-xAl 5O12: Cex3+ phosphor nanofibers prepared by electrospinning
Suryamas A.B.a, Munir M.M.a,b, Iskandar F.a, Okuyama K.a
a Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, Japan
b Department of Physics, Bandung Institute of Technology (ITB), 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]Cerium-doped yttrium aluminum garnet (YAG: Ce3+; Y3-x Al5 O12: Ce x 3+) phosphor nanofibers were successfully prepared using an electrospinning method followed by a heating process. Aluminum nitrate nonahydrate, yttrium nitrate hexahydrate, and cerium nitrate hexahydrate dissolved in dimethylformadide, poly(vinyl pyrrolidone), and ethanol comprised the precursor. The precursor was electrospun under atmospheric conditions to obtain the as-prepared fibers, which consisted of salts and the polymer composite. The as-prepared fibers were then heated to remove the polymer and to obtain the YAG: Ce3+ crystalline fibers. The morphology of the final fibers was homogeneous; the fibers were approximately 300 nm in diameter and several centimeters in length. The photoluminescence (PL) and crystalline properties of the fibers were studied as a function of both the doping fraction (0.005×0.4) and the heating temperature (900-1400 °C). High heating temperatures resulted in a high degree of crystallinity, crystallites that ranged from 20 to 55 nm in size, and enhanced PL intensity. A doping concentration of 1% (x=0.01) gave the highest PL intensity under excitation at 470 nm. The PL spectra were centered at 530 nm due to the transition from the 5d state to the 4f state (A2 1g → F2 5/2 and A2 1g → F2 7/2). © 2009 American Institute of Physics.[/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]4f state,Aluminum nitrate nonahydrate,Atmospheric conditions,Cerium nitrates,Crystalline fibers,Crystalline properties,Degree of crystallinity,Doping concentrations,Electrospinning methods,Electrospun,Heating process,Heating temperatures,Nitrate hexahydrates,Pl intensities,PL spectrum,Poly(vinyl pyrrolidone),Polymer composites,Yttrium aluminum garnets[/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][/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]This work was supported by a Grant-in-Aid for Scientific Research (A) No. 18206079 from the Japan Society for the Promotion of Science (JSPS). We are grateful to the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan for providing doctoral scholarships of A.B.S and M.M.M.[/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/10.1063/1.3095483[/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]