Wang J, Yoo Y, Gao C, Takeuchi I, Sun X, Chang H, Xiang X, Schultz PG
J. Wang, C. Gao, I. Takeuchi, X.-D. Xiang, Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. Y. Yoo, Department of Physics, University of California, Berkeley, CA 94720, USA. X. Sun and H. Chang,
Science. 1998 Mar 13;279(5357):1712-4. doi: 10.1126/science.279.5357.1712.
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, Gd3Ga5O12/SiO2. Experimental evidence suggests that luminescence in this material may arise from interfacial effects between SiO2 and Gd3Ga5O12.
采用四元组合掩膜策略并结合光刻技术，在2.5平方厘米的基板上生成了包含1024种不同成分的成分多样的薄膜磷光体库。使用平行成像系统和扫描分光光度计来识别和表征该库中具有有趣发光行为的成分。通过使用梯度库确定了最佳成分，其中材料的化学计量比连续变化。这一过程导致鉴定出一种高效的蓝色光致发光复合材料Gd3Ga5O12/SiO2。实验证据表明，这种材料中的发光可能源于SiO2和Gd3Ga5O12之间的界面效应。
