来自Enantiopure分子复合物的强圆极化发光在1550nm
Nishya F M Mukthar1, Nathan D Schley2, Gaël Ung1
1Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States.
Journal of the American Chemical Society
|April 4, 2022
概括
新的异金属双复合物表现出强烈的圆极化发光 (CPL) 超过1200nm. 这些发现为先进的量子通信和传感技术铺平了道路.
科学领域:
- 材料科学
- 摄影化学
- 光谱学
背景情况:
- 循环偏光 (CPL) 对于先进的光学技术至关重要.
- 在近红外 (NIR) 区域实现CPL,特别是超出1200nm,仍然是一个重大挑战.
- 异金属复合物为发光应用提供可调节的特性.
研究的目的:
- 在近红外 (NIR) 区域使用新型异金属双离子复合物实现循环偏光 (CPL).
- 研究,和复合物的CPL特性.
- 探索这些复合体在量子通信和生物传感中的潜在应用.
主要方法:
- 合成异金属双复合物中的,和.
- 综合体的结构和光物理特性.
- 测量循环极化发光 (CPL) 光谱,确定不对称系数和量子产量.
主要成果:
- 在两个NIR分区成功获得CPL.
- 在1550 nm时,复合物[[Binol) 3ErNa3]表现出异常高的不对称系数 (brbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbr
- 类似的和复合物在800-1200nm窗口中显示出强烈的CPL.
- 在所有复合物中观察到高量子产量 (Er:0.58%,Yb:17%,Nd:9.3%) 和B_CPL值.
结论:
- 合成的异金属双复合物是有效的NIR循环极化发光 (CPL) 发射器.
- 这些复合体在电信频段 (1550 nm) 和生物相关的NIR窗口 (800-1100 nm) 中表现出强烈的CPL.
- 合成的多功能性和强大的CPL特性表明量子通信和生物传感中的应用潜力很大.
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