以柠檬酸作为络合剂和燃料,用sol-gel燃烧法,制备了(Y1-xErx)3Al5O12粉体(x=0.001、0.005、0.01、0.05、0.1).在800℃,粉体直接由无定形相转变为YAG单相.采用980nm的半导体激光器激发,YAG:Er3+发出较强的红绿光,且有两个主发射峰552.5nm和675nm.随着掺杂量的增加,发光强度先增加后减小,当Er3+掺杂量为5%(x=0.05)时,上转换发光强度最大.另外,对其上转换发光机制进行了讨论.
参考文献
[1] | Kyoung R .Han,Hee jin Koo,Chang sup Lim[J].Journal of the American Ceramic Society,1999,82:1598-1600. |
[2] | Sheng-Kang Ruan;Jian-Guo Zhou;Ai-Min Zhong et al.[J].Journal of Alloys and Compounds,1998,275:72. |
[3] | Hreniak D;Strek W .[J].Journal of Alloys and Compounds,2002,341:183. |
[4] | Yukiya Hakuta;Tsukasa Haganuma;Kiwamu Sue;Tadafumi Adschiri;Kunio Arai .Continuous production of phosphor YAG:Tb nanoparticles by hydrothermal synthesis in supercritical water[J].Materials Research Bulletin: An International Journal Reporting Research on Crystal Growth and Materials Preparation and Characterization,2003(7):1257-1265. |
[5] | Kutty TRN.;Nayak M. .Photoluminescence of Eu2+-doped mullite (xAl(2)O(3)center dot ySiO(2); x/y=3/2 and 2/1) prepared by a hydrothermal method[J].Materials Chemistry and Physics,2000(2):158-165. |
[6] | Zhang Jun-ji;Ning Jin-Wei;Liu Xue-jian et al.[J].Materials Research Bulletin,2003,38:1249. |
[7] | NorikoSaito;Shin-ichi Matsuda;Takayasu Ikegami .[J].Journal of the American Ceramic Society,1998,81:2020. |
[8] | Ji-Guang Li;Takayasu Ikegami;Jong-Heun Lee;Toshiyuki Mori .Low-temperature fabrication of transparent yttrium aluminum garnet (YAG) ceramics without additives[J].Journal of the American Ceramic Society,2000(4):961-963. |
[9] | Prasad Apte;Harry Burke;Helen Pickup .[J].Journal of Materials Research,1992,7:706. |
[10] | Hongzhi Wang;Lian Gao .[J].Koichi Niihara:Mater Sci Eng,2000,288:1. |
[11] | Ohno K;Abe T .[J].Journal of the Electrochemical Society,1987,134(08):2072. |
[12] | Ohno K;Abe T .[J].Journal of the Electrochemical Society,1986,133(03):638. |
[13] | Capobianaco J A;Vetrone F .[J].Optical Materials,2002,19:259. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%