Sun T X
General Electric Company, Corporate Research and Development, Schenectady, New York 12309, USA.
Biotechnol Bioeng. 1998;61(4):193-201.
Phosphors are key materials in fluorescent lighting, displays, x-ray scintillation, etc. The rapid development of modern photonic technologies, e.g., mercury-free lamps, flat panel displays, CT-detector array, etc., demands timely discovery of advanced phosphors. To this end, a combinatorial approach has been developed and applied to accelerated experimental search of advanced phosphors and scintillators. Phosphor libraries can be made in both thin film and powder form, using masking strategies and liquid dispensing systems, respectively. High-density libraries with 100 to 1000 discrete phosphor compositions on a 1"-square substrate can be made routinely. Both compositions and synthesis temperatures can be screened in a high-throughput mode. In this article, details on the existing methods of combinatorial synthesis and screening of phosphors will be reported with examples. These methods are generic tools for application of combinatorial chemistry in the discovery of other solid state materials. A few highly efficient phosphors discovered with combinatorial methods have been reproduced in bulk form and their luminescent properties measured.
磷光体是荧光照明、显示器、X射线闪烁等领域的关键材料。现代光子技术的快速发展，如无汞灯、平板显示器、CT探测器阵列等，需要及时发现先进的磷光体。为此，已开发出一种组合方法并应用于加速先进磷光体和闪烁体的实验搜索。磷光体库可以分别使用掩膜策略和液体分配系统制成薄膜和粉末形式。在1平方英寸的基板上常规制备具有100至1000种离散磷光体成分的高密度库。成分和合成温度都可以高通量模式进行筛选。本文将通过实例报道磷光体组合合成和筛选的现有方法的详细信息。这些方法是组合化学应用于发现其他固态材料的通用工具。通过组合方法发现的一些高效磷光体已被批量复制并测量了它们的发光特性。
