没有重原子的三三消灭升级转换成光交联聚合物聚 ((乙烯基醇) 二烯酸盐
Mengmeng Han1, Xingliang Li1, Zece Zhu2
1College of Physics, Hebei Key Laboratory of Photophysics Research and Application, Hebei Normal University, Shijiazhuang 050024, China.
ACS applied materials & interfaces
|July 3, 2024
概括
这项研究测量了固体凝中的三倍三倍灭绝 (TTA) 上升转化. 量子产量因基质吸收而随着深度的增加而减少,与溶液不同.
科学领域:
- 材料科学 材料科学 材料科学
- 摄影化学的使用.
- 有机电子 有机电子
背景情况:
- 三倍三倍灭绝 (TTA) 上转换是一个有前途的光物理过程.
- 热激活延迟光 (TADF) 分子使没有重原子的TTA.
- 固态矩阵对于实际的TTA应用是可取的.
研究的目的:
- 在固态矩阵 (干燥凝) 中研究TTA上转化.
- 准确测量在不同深度上升转换量子产量 (ΦUC).
- 为了比较固体凝TTA与溶液相TTA.
主要方法:
- 使用光交联聚合物矩阵制造干燥凝.
- 开发一种内部参考方法,用于精确的量子产量测量.
- 在固体凝和溶液系统中,在不同的透深度下实验性地确定 ΦUC .
主要成果:
- 固体凝系统中的UC在表面是最高的,并且随着深度的增加而呈指数级下降.
- 基质的吸收显著影响了固体凝中的深度依赖的ΦUC.
- 溶液阶段TTA显示 ΦUC与深度的变化最小,与固体凝结果形成对比.
结论:
- 精确测量固态TTA在不同深度的量子产量至关重要.
- 基质吸收是影响固态TTA效率的关键因素.
- 降低基板厚度提供了一种新的策略,以提高固相TTA量子产量.
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