High-resolution laser induced excitation spectroscopy and decay dynamics of YNbO4:Er3+

Autor:	Kai Huang, Dong-Xue Han, Xiangping Li, Xin Wang, Hong-Ming Yin, Feng-Jiao Zhao, Feng Zhang
Rok vydání:	2022
Předmět:	Excitation spectroscopy Dye laser Chemistry Resolution (electron density) High resolution Laser Atomic and Molecular Physics and Optics Analytical Chemistry law.invention Wavelength law Atomic physics Spectroscopy Luminescence Instrumentation
Zdroj:	Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 267:120573
ISSN:	1386-1425
Popis:	The rare earth materials have attracted intensive attention due to their strong luminescent characteristic. However, the split fine Stark levels are difficult to be determined. Here we report a room-temperature detection for Stark levels of YNbO4: Er3+ using established laser-induced spectroscopy system with dye laser of superhigh resolution of wavelength at 0.005 nm. From excitation spectra, six split Stark levels of 4G11/2 (Er3+) were directly detected. Moreover, nonradiative relaxations of 4G9/2→4G11/2 and 4G11/2→2H11/2/ 4S3/2 have been observed with weighed lifetimes of 0.70 μs and 6.15 μs, and characteristic green emission of Er3+ (@555 nm) yields lifetime of 31.78 μs.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::92c2274149a7377ad83b9ab7e3e8da19 https://doi.org/10.1016/j.saa.2021.120573 Zobrazit plný text záznamu Full Text from ScienceDirect