基于聚合物的室温光材料在环境条件下具有高达4.6秒的排放寿命
Xiaoqing Song1,2, Xiangxiang Zhai1,2, Ying Zeng1,2
1Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou, China.
概括
研究人员开发了基于聚合物的室温光 (RTP) 材料,其超长的发射寿命高达4.6秒. 这些先进的RTP材料为防伪应用提供高亮度和可加工性.
科学领域:
- 材料科学 材料科学 材料科学
- 摄影化学的使用.
- 聚合物化学 聚合物化学
背景情况:
- 室温光 (RTP) 材料由于其长期的发射寿命而具有价值.
- 基于聚合物的RTP材料具有机械优势,但由于有机三重激发状态的不稳定性,在环境条件下,其发射寿命很短.
- 在聚合物系统中,达到超过2-4秒的光寿命是非常罕见的.
研究的目的:
- 设计和合成具有超长室温光寿命的新型聚合物材料.
- 研究这些材料在需要长时间发光的应用中,如防伪和数据加密等方面的潜力.
- 为了克服现有的聚合物RTP系统中短的排放寿命的局限性.
主要方法:
- 设计具有内在低光率的发光化合物 (约. 10−1 s−1) 的时间.
- 使用乙烯 - 乙烯醇共聚合物 (EVOH) 作为聚合物矩阵.
- 加入抗氧化剂1010以稳定有机三重激发状态.
- 光寿命的表征,后光亮度,持续时间,可加工性,透明度和热稳定性.
主要成果:
- 在环境条件下,在低功率,短期激发下,达到高达4.6秒的超长光寿命.
- 开发的材料呈现出高后照亮亮度和延长后照亮持续时间.
- 具有良好的热稳定性,表现出良好的可加工性,可以成大面积,透明的薄膜.
结论:
- 设计的基于聚合物的RTP材料成功实现了超长的光寿命,超过了聚合物系统中以前的记录.
- 这些材料具有理想性质的组合,包括高性能,优良的可加工性和稳定性.
- 这些发现凸显了这些新型RTP材料在先进的防伪和数据加密技术方面的潜力.
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