Rare-earth-doped nanocrystalline Titania microspheres emitting luminescence via energy transfer

被引:129
作者
Li, Li [1 ]
Tsung, Chia-Kuang [3 ]
Yang, Zhi [1 ]
Stucky, Galen D. [3 ]
Sun, Lingdong [2 ]
Wang, Jianfang [1 ]
Yan, Chunhua [2 ]
机构
[1] Chinese Univ Hong Kong, Dept Phys, Sha Tin, Hong Kong, Peoples R China
[2] Peking Univ, State Key Lab Rare Earth Mat Schem & Applicat, Beijing 100871, Peoples R China
[3] Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA
关键词
D O I
10.1002/adma.200701507
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Rare-earth-doped nanocrystalline titania microspheres are prepared using an inexpensive and scalable ultrasonic spray pyrolysis method. Anatase titania nanocrystals distributed inside these microspheres function as sensitizers to absorb light and transfer energy to rare earth ions, which leads to intense and narrow bandwidth emission.
引用
收藏
页码:903 / +
页数:7
相关论文
共 61 条
[1]   The design and development of highly reactive titanium oxide photocatalysts operating under visible light irradiation [J].
Anpo, M ;
Takeuchi, M .
JOURNAL OF CATALYSIS, 2003, 216 (1-2) :505-516
[2]   Liquid-feed flame spray pyrolysis as a method of producing mixed-metal oxide nanopowders of potential interest as catalytic materials.: Nanopowders along the NiO-Al2O3 tie line including (NiO)0.22(Al2O3)0.78, a new inverse spinel composition [J].
Azurdia, JA ;
Marchal, J ;
Shea, P ;
Sun, HP ;
Pan, XQ ;
Laine, RM .
CHEMISTRY OF MATERIALS, 2006, 18 (03) :731-739
[3]   Cubic mesoporous frameworks with a mixed semiconductor nanocrystalline wall structure and enhanced sensitivity to visible light [J].
Bartl, MH ;
Puls, SP ;
Tang, J ;
Lichtenegger, HC ;
Stucky, GD .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (23) :3037-3040
[4]   3-D molecular assembly of function in titania-based composite material systems [J].
Bartl, MH ;
Boettcher, SW ;
Frindell, KL ;
Stucky, GD .
ACCOUNTS OF CHEMICAL RESEARCH, 2005, 38 (04) :263-271
[5]   Er3+-doped multicomponent sol-gel-processed silica glass for optical signal amplification at 1.5 μm [J].
Biswas, A ;
Maciel, GS ;
Kapoor, R ;
Friend, CS ;
Prasad, PN .
APPLIED PHYSICS LETTERS, 2003, 82 (15) :2389-2391
[6]   STORAGE OF LIGHT ENERGY BY PHOTOELECTRON TRANSFER ACROSS A SENSITIZED ZEOLITE SOLUTION INTERFACE [J].
BORJA, M ;
DUTTA, PK .
NATURE, 1993, 362 (6415) :43-45
[7]  
Brinker CJ, 1999, ADV MATER, V11, P579, DOI 10.1002/(SICI)1521-4095(199905)11:7<579::AID-ADMA579>3.3.CO
[8]  
2-I
[9]   Semiconductor nanocrystals as fluorescent biological labels [J].
Bruchez, M ;
Moronne, M ;
Gin, P ;
Weiss, S ;
Alivisatos, AP .
SCIENCE, 1998, 281 (5385) :2013-2016
[10]   Luminescence and crystallinity of flame-made Y2O3:Eu3+ nanoparticles [J].
Camenzind, Adrian ;
Strobel, Reto ;
Krumeich, Frank ;
Pratsinis, Sotiris E. .
ADVANCED POWDER TECHNOLOGY, 2007, 18 (01) :5-22