当前位置: X-MOL 学术J. Am. Chem. Soc. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Strong Circularly Polarized Luminescence at 1550 nm from Enantiopure Molecular Erbium Complexes
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2022-04-04 , DOI: 10.1021/jacs.2c01134
Nishya F M Mukthar 1 , Nathan D Schley 2 , Gaël Ung 1
Affiliation  

Circularly polarized luminescence (CPL) in two subregions of the near-infrared (NIR) has been achieved. By leveraging the rigidity and diminishing detrimental vibrations of the heterobimetallic binolate complexes of erbium [(Binol)3ErNa3], species exhibiting an exceptionally high dissymmetry factor (|glum |) of 0.47 at 1550 nm were obtained. These erbium complexes are the first reported examples of CPL observed beyond 1200 nm. Analogous complexes of ytterbium and neodymium also exhibited strong CPL (|glum| = 0.17, 0.05, respectively) in a higher energy NIR window (800–1200 nm). All complexes exhibit high quantum yields (Er: 0.58%, Yb: 17%, Nd: 9.3%) and high BCPL values (Er: 57 M–1 cm–1, Yb: 379 M–1 cm–1, Nd: 29 M–1 cm–1). Because of their strong CPL emission in the telecom band (1550 nm), biologically relevant NIR emission window (800–1100 nm), and synthetic versatility, the complexes reported here could permit further promising developments in quantum communication technologies and biologically relevant sensors.

中文翻译:

对映纯分子铒配合物在 1550 nm 处的强圆偏振发光

在近红外 (NIR) 的两个子区域中实现了圆偏振发光 (CPL)。通过利用铒[(Binol) 3 ErNa 3 ] 的异质双金属二元盐配合物的刚性和减少有害振动,获得了在1550 nm 处表现出0.47的异常高不对称因子(| g lum |) 的物种。这些铒配合物是首次报道的在 1200 nm 以上观察到的 CPL 例子。镱和钕的类似配合物在更高能量的 NIR 窗口(800-1200 nm)中也表现出强 CPL(| g lum | = 0.17, 0.05)。所有配合物都表现出高量子产率(Er:0.58%,Yb:17%,Nd:9.3%)和高B CPL值(Er:57 M –1 cm –1,Yb:379 M –1 cm –1,Nd:29 M –1 cm –1)。由于它们在电信波段(1550 nm)中的强 CPL 发射、生物相关的 NIR 发射窗口(800-1100 nm)和合成的多功能性,这里报道的复合物可以允许量子通信技术和生物相关传感器的进一步发展。
更新日期:2022-04-04
down
wechat
bug