光致发光材料是指受到外界能量刺激从激发态回到基态的同时将一部分能量以光的形式发射出去的物质。这就是发光现象。根据吸收的能量类型和发光机理,存在各种类型的发光现象,包括放电发光、光致发光、电致发光、化学发光、生物发光和阴极发光。这些材料在各个领域中发挥着至关重要的作用,既可以直接作为发光材料使用,也可以作为制造个人电脑和智能手机显示屏、LED 灯和激光器等发光器件的基础,对我们的日常生活产生了重大影响。
一般而言,发光材料的开发过程包括选择作为发光材料基础的化合物或物质、合成这些化合物以及评估合成发光材料的发光性能。
该过程先从大量候选化合物中筛选出合适的化合物,再进行合成。随后,采用光谱测量、量子产率测量、荧光寿命测量等各种技术,对合成发光材料的特性进行评估。
滨松集团为发光材料提供了一系列评估设备,包括光谱仪、发光量子产率测量装置、荧光寿命测量装置及瞬态吸收测量装置。
介绍用于发光材料评估的每种测量方法的原理、示例及推荐产品。
为评估Center for Organic Photonics and Electronics Research (OPERA), Kyushu University 正在研发的有机光电材料和器件,需用到各种测量方法,如光致发光 (PL) 量子产率测量和荧光寿命测量。为进行此类评估,我们推出了Quantaurus系列与条纹相机。
我们采访了Prof. Chihaya Adachi, Director of the Center与 Assoc. Prof. Hajime Nakanotani,主题为绝对光致发光量子产率测量方法的确立、我们的Quantaurus系列对其研究的影响以及其对未来研究的展望。
Chromatiq Spectral Engine™ (CSE) 是一种复杂光源,能够匹配真实的照明条件,模拟照明标准,并创建自定义光谱。
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