Swathika Manoharan, Natarajan Arunadevi
Department of Chemistry, PSGR Krishnammal College for Women, Coimbatore, Tamil Nadu, India.
Luminescence. 2023 Jul;38(7):1230-1243. doi: 10.1002/bio.4365. Epub 2022 Sep 7.
Progression in lighting sources mainly depended on new, robust energy-efficient diodes due to their advanced photometric properties. All organic light-emitting sources are constant energy-efficient devices and will be the light of the future. We explore the potential of transition metal complexes by focusing on cobalt(II), nickel(II), and copper (II) with aminoguanidine naphthoate as white phosphors in organic light-emitting diodes (OLEDs). The phosphors synthesized at optimized temperature were characterized structurally and thermally by spectral, thermal, and diffraction techniques. The photophysical studies of the target compound in several organic solvents having divergent polarity were also studied, and the results were exhibited. Photometric properties of the complexes were studied using photoluminescence, CIE (Commission internationale de l'éclairage) chromaticity coordinates, correlated color temperature, color purity, Duv, and TLCI (Television Lighting Consistency Index) to verify the applicability of complexes as phosphors. Excellent luminescence property with a high coloring index for (Cu(2NA-AMG-2H O)) opens the advanced avenue for light sources and serves as vital constituents for light-emitting diodes.
光源的发展主要依赖于新型、耐用的节能二极管，这是由于它们具有先进的光度特性。所有有机发光源都是恒效节能装置，将成为未来的照明光源。我们通过聚焦于以萘甲酸氨基胍作为有机发光二极管（OLED）中的白色磷光体的钴（II）、镍（II）和铜（II），来探索过渡金属配合物的潜力。在优化温度下合成的磷光体通过光谱、热学和衍射技术进行了结构和热学表征。还研究了目标化合物在几种极性不同的有机溶剂中的光物理性质，并展示了结果。使用光致发光、CIE（国际照明委员会）色度坐标、相关色温、色纯度、Duv和TLCI（电视照明一致性指数）研究了配合物的光度特性，以验证配合物作为磷光体的适用性。（Cu(2NA - AMG - 2H₂O)）具有出色的发光性能和高显色指数，为光源开辟了新途径，并成为发光二极管的重要组成部分。
