Color change upconversion mechanism of Y-=SUB=-6-=/SUB=-O-=SUB=-5-=/SUB=-F-=SUB=-8-=/SUB=-:Er-=SUB=-3+-=/SUB=-/Yb-=SUP=-3+-=/SUP=- microtubes by using time-resolve spectra -=SUP=-*-=/SUP=- | Zendy

S. Wang | Zendy; Xinyu Cheng | Zendy; J.Y. Wang | Zendy; Zhicheng Zhong | Zendy

Open Access

Color change upconversion mechanism of Y-=SUB=-6-=/SUB=-O-=SUB=-5-=/SUB=-F-=SUB=-8-=/SUB=-:Er-=SUB=-3+-=/SUB=-/Yb-=SUP=-3+-=/SUP=- microtubes by using time-resolve spectra -=SUP=-*-=/SUP=-

Author(s) -

S. Wang,

Xinyu Cheng,

J.Y. Wang,

Zhicheng Zhong

Publication year - 2018

Publication title -

физика твердого тела

Language(s) - English

Resource type - Journals

eISSN - 1726-7498

pISSN - 0367-3294

DOI - 10.21883/ftt.2018.07.46125.294

Subject(s) - photon upconversion , energy transfer , spectral line , analytical chemistry (journal) , quenching (fluorescence) , materials science , emission spectrum , luminescence , ion , optoelectronics , atomic physics , chemistry , fluorescence , optics , physics , chromatography , astronomy , organic chemistry

The mechanism of the upconversion processes in Y_6O_5F_8: 2%Er^3+/ X %Yb^3+ ( X = 3, 10, 20) microtubes has been explored. The luminescent properties of the as prepared sample is investigated by utilizing up- /downconversion, decay and time resolve spectra. The results indicate that the red and green emission are clearly competitive depending on the Yb^3+ concentration. High Yb^3+ concentration induces the enhancement of the energy-back-transfer (EBT), process, which leads to the quenching of green emission and enhances the red emission. So it is possible to utilize the temporal evolutions of emission bands to deeply understand the color change UC mechanisms.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research