Abstract: <SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: " mso-bidi-language: ZH-CN; mso-fareast-language: EN-US; mso-ansi-language: 1.0pt; mso-font-kerning: Roman?; New Times 宋体? mso-fareast-font-family: AR-SA; 12.0pt; mso-bidi-font-size:>Single phase YAl<SUB>3</SUB> (BO<SUB>3</SUB>)<SUB> 4</SUB>:Eu<SUP>3+</SUP> red phosphor was prepared by solid state reaction with rare earth oxide,</SPAN><SPAN style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: " AR-SA? mso-bidi-language: ZH-CN; mso-fareast-language: EN-US; mso-ansi-language: 1.0pt; mso-font-kerning: Roman?; New ?Times mso-bidi-font-family: mso-hansi-font-family: Times></SPAN><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: " mso-bidi-language: ZH-CN; mso-fareast-language: EN-US; mso-ansi-language: 1.0pt; mso-font-kerning: Roman?; New Times 宋体? mso-fareast-font-family: AR-SA; 12.0pt; mso-bidi-font-size:>aluminum nitrate,and boric acid as raw materials.Structure and luminescent performance of the red phosphor powder were analyzed by X-ray diffraction (XRD) and luminescence spectra.Influences of calcining temperature and dosage of Eu<SUP>3+</SUP> on luminescent</SPAN><SPAN style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: " AR-SA? mso-bidi-language: ZH-CN; mso-fareast-language: EN-US; mso-ansi-language: 1.0pt; mso-font-kerning: Roman?; New ?Times mso-bidi-font-family: mso-hansi-font-family: Times></SPAN><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: " mso-bidi-language: ZH-CN; mso-fareast-language: EN-US; mso-ansi-language: 1.0pt; mso-font-kerning: Roman?; New Times 宋体? mso-fareast-font-family: AR-SA; 12.0pt; mso-bidi-font-size:>performance were studied.Results showed that single phase YAl<SUB>3</SUB> (BO<SUB>3</SUB>)<SUB> 4</SUB>:Eu<SUP>3+</SUP> crystals could be prepared at the calcining temperature of 1 250 </SPAN><SPAN style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: " AR-SA? mso-bidi-language: ZH-CN; mso-fareast-language: EN-US; mso-ansi-language: 1.0pt; mso-font-kerning: Roman?; New ?Times mso-bidi-font-family: mso-hansi-font-family: Times>℃</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: " mso-bidi-language: ZH-CN; mso-fareast-language: EN-US; mso-ansi-language: 1.0pt; mso-font-kerning: Roman?; New Times 宋体? mso-fareast-font-family: AR-SA; 12.0pt; mso-bidi-font-size:>;Y<SUP>3+</SUP> in YAl<SUB>3</SUB> (BO<SUB>3</SUB>)<SUB> 4</SUB>crystals was replaced by Eu<SUP>3+ </SUP>in YAl<SUB>3</SUB> (BO<SUB>3</SUB>)<SUB> 4</SUB>:Eu<SUP>3+</SUP> crystals and Eu<SUP>3+</SUP> occupied non-centrosymmetric sites in YAl<SUB>3</SUB> (BO<SUB>3</SUB>)<SUB> 4</SUB>:Eu<SUP>3+</SUP>;Under the excitation of 394 nm ultraviolet light,</SPAN><SPAN style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: " AR-SA? mso-bidi-language: ZH-CN; mso-fareast-language: EN-US; mso-ansi-language: 1.0pt; mso-font-kerning: Roman?; New ?Times mso-bidi-font-family: mso-hansi-font-family: Times></SPAN><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: " mso-bidi-language: ZH-CN; mso-fareast-language: EN-US; mso-ansi-language: 1.0pt; mso-font-kerning: Roman?; New Times 宋体? mso-fareast-font-family: AR-SA; 12.0pt; mso-bidi-font-size:>YAl<SUB>3</SUB> (BO<SUB>3</SUB>)<SUB> 4</SUB>:Eu<SUP>3+</SUP> phosphor had a strong luminescent performance;comparing with (Y,Gd) BO</SPAN><SPAN style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: " AR-SA? mso-bidi-language: ZH-CN; mso-fareast-language: EN-US; mso-ansi-language: 1.0pt; mso-font-kerning: Roman?; New ?Times mso-bidi-font-family: mso-hansi-font-family: Times></SPAN><SUB><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: " mso-bidi-language: ZH-CN; mso-fareast-language: EN-US; mso-ansi-language: 1.0pt; mso-font-kerning: Roman?; New Times 宋体? mso-fareast-font-family: AR-SA; 12.0pt; mso-bidi-font-size:>3</SPAN></SUB><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: " mso-bidi-language: ZH-CN; mso-fareast-language: EN-US; mso-ansi-language: 1.0pt; mso-font-kerning: Roman?; New Times 宋体? mso-fareast-font-family: AR-SA; 12.0pt; mso-bidi-font-size:>:Eu<SUP>3+</SUP> phosphor its wavelength of the strongest emission line was turned to 618 nm from 596 nm;the color changed into red from orange red and the color purity was improved a lot;and the optimal dosing rate of Eu<SUP>3+</SUP></SPAN><SPAN style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: " AR-SA? mso-bidi-language: ZH-CN; mso-fareast-language: EN-US; mso-ansi-language: 1.0pt; mso-font-kerning: Roman?; New ?Times mso-bidi-font-family: mso-hansi-font-family: Times></SPAN><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: " mso-bidi-language: ZH-CN; mso-fareast-language: EN-US; mso-ansi-language: 1.0pt; mso-font-kerning: Roman?; New Times 宋体? mso-fareast-font-family: AR-SA; 12.0pt; mso-bidi-font-size:>was 8% (amount-of-substance fraction).</SPAN><SPAN style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: " AR-SA? mso-bidi-language: ZH-CN; mso-fareast-language: EN-US; mso-ansi-language: 1.0pt; mso-font-kerning: Roman?; New ?Times mso-bidi-font-family: mso-hansi-font-family: Times></SPAN>