发光薄膜的制备及应用

Preparation and Applications of Luminescent Film

与传统的发光粉制作的显示屏相比 ,发光薄膜在对比度、分辨率、热传导、均匀性、与基底的附着性、释气速率等方面都显示出较强的优越性。因此 ,作为功能材料 ,发光薄膜在诸如阴极射线管 (CRTs)、电致发光显示 (ELDs)及场发射显示 (FEDs)等平板显示领域中有着广阔的应用前景。发光薄膜的制备方法有许多种 ,包括溅射法、金属有机物化学汽相沉积法、溶胶 凝胶法、脉冲激光沉积法、喷雾热解法、蒸镀法等。本文系统地对这些发光薄膜的制备方法及其应用情况作以简单的介绍 ,最后对发光薄膜的发展趋势进行了展望。

Compared with the conventional display screen prepared by deposition of fine grain luminescent powders, displays with thin film phosphors offer advantages such as higher contrast and resolution, better thermal stability, superior thermal conductivity, high degree of uniformity and better adhesion to the substrate as well as reduced outgassing. As a fact, luminescent films have found extensive application in flat panel display devices, such as CRTs, ELDs, FEDs. The methods for preparation of luminescent films include sputtering, metallorganic chemical vapor deposition, sol gel, pulsed laser deposition, spray pyrolysis, evaporation, etc. In this review, the preparation methods and application situation of luminescent films are summarized, and at last, the future development tendency for the luminescent films are forecasted.