Identification of a Blue Photoluminescent Composite Material from a Combinatorial Library-Reference-Cited by-同舟云学术

Identification of a Blue Photoluminescent Composite Material from a Combinatorial Library

Published:1998-03-13 Issue:5357 Volume:279 Page:1712-1714
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Wang Jingsong¹²³⁴,Yoo Young¹²³⁴,Gao Chen¹²³⁴,Takeuchi Ichiro¹²³⁴,Sun Xiaodong¹²³⁴,Chang Hauyee¹²³⁴,Xiang X.-D.¹²³⁴,Schultz Peter G.¹²³⁴

Affiliation:

1. J. Wang, C. Gao, I. Takeuchi, X.-D. Xiang, Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.

2. Y. Yoo, Department of Physics, University of California, Berkeley, CA 94720, USA.

3. X. Sun and H. Chang, Department of Chemistry, University of California, Berkeley, CA 94720, USA.

4. P. G. Schultz, Materials Sciences Division, Lawrence Berkeley National Laboratory, and Howard Hughes Medical Institute, Department of Chemistry, University of California, Berkeley, CA 94720, USA.

Abstract

A quaternary combinatorial masking strategy was used in conjunction with photolithography to generate compositionally diverse thin-film phosphor libraries containing 1024 different compositions on substrates 2.5 centimeters square. A parallel imaging system and scanning spectrophotometer were used to identify and characterize compositions in the library with interesting luminescent behavior. Optimal compositions were identified with the use of gradient libraries, in which the stoichiometry of a material was varied continuously. This process led to the identification of an efficient blue photoluminescent composite material, Gd 3 Ga 5 O 12 /SiO 2 . Experimental evidence suggests that luminescence in this material may arise from interfacial effects between SiO 2 and Gd 3 Ga 5 O 12 .

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference19 articles.

1. G. Blasse and B. C. Grabmaier Luminescent Materials (Springer-Verlag Berlin 1994).

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3. Briceño G., Chang H., Sun X., Schultz P. G., Xiang X.-D., ibid. 270, 273 (1995).

4. A combinatorial approach to the discovery and optimization of luminescent materials

5. Wei T., Xiang X.-D., Wallace-Freedman W. G., Schultz P. G., Xiang X.-D., Appl. Phys. Lett. 68, 3506 (1996);

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