2020-2025年长春余辉可控交流LED发光材料数据集

该数据集主要涉及“指标1.1材料最大激发波长；指标1.2 材料最大发射波长；指标1.3余辉寿命”。 在余辉可控交流LED发光材料的研制过程中，通过合成条件和环境控制调控材料晶体生长中的本征缺陷的形成，研究材料本征点缺陷与材料陷阱中心的关系；研究掺杂稀土离子的占位与杂质缺陷形成机制；研究杂质离子的半径、电荷和光学电负性对材料陷阱中心的影响以及交流LED陷阱中心的形成机制；研究材料中基质、发光中心和陷阱中心三者间的能量传递过程；研究可变价的发光离子的光电离过程对俘获电荷种类的影响；研究陷阱中心俘获电荷和释放电荷的动力学过程。最终通过材料的发光性质来判断所合成制备的余辉可控交流LED发光材料是否满足项目的需要。数据内容具体包括材料的晶体结构数据、形貌数据、激发发射光谱、漫反射光谱、热释光谱、EPR、变温光谱、电致发光光谱、余辉光谱、余辉衰减曲线数据等。数据类型为文件，数据格式有.raw,.txt,.pdf,.jpg，预估数据量435.51 MB，共享方式为完全共享。

This dataset mainly covers "Indicator 1.1 Maximum Excitation Wavelength of Materials; Indicator 1.2 Maximum Emission Wavelength of Materials; Indicator 1.3 Afterglow Lifetime". In the development of controllable afterglow AC LED luminescent materials, the formation of intrinsic defects during crystal growth of the materials is regulated via synthesis conditions and environmental control. Researches are conducted as follows: the relationship between intrinsic point defects and trap centers in the materials; the occupation sites of doped rare earth ions and the formation mechanism of impurity defects; the effects of radius, charge and optical electronegativity of impurity ions on material trap centers and the formation mechanism of AC LED trap centers; the energy transfer process among the matrix, luminescent centers and trap centers in the materials; the influence of photoionization process of variable-valence luminescent ions on the types of trapped charges; and the dynamic processes of charge trapping and release by trap centers. Ultimately, whether the synthesized and prepared controllable afterglow AC LED luminescent materials meet the project requirements is judged based on their luminescent properties. The specific data contents include crystal structure data, morphology data, excitation and emission spectra, diffuse reflection spectra, thermally stimulated luminescence (TSL) spectra, electron paramagnetic resonance (EPR) data, variable-temperature spectra, electroluminescence spectra, afterglow spectra and afterglow decay curve data of the materials. The data are stored as files in formats including .raw, .txt, .pdf and .jpg. The estimated total data volume is 435.51 MB, and the sharing method is full sharing.

搜集汇总

背景与挑战

背景概述

该数据集聚焦于2020至2025年间长春地区余辉可控交流LED发光材料的研究，涵盖材料最大激发波长、发射波长及余辉寿命等关键指标。数据内容包括晶体结构、光谱分析和余辉性能测试等文件，旨在通过发光性质评估材料是否满足项目需求，共享方式为完全共享。