CaSnO3:Tb3+, Eu3+: a distorted-perovskite structure phosphor with tunable photoluminescence properties
Source abstract
Abstract
The Tb3+/Eu3+ co-activated CaSnO3 nano-phosphors have been prepared by a sol–gel technique. The emission and excitation spectra as well as the luminescence decay behaviors were investigated. When excited at 378 nm, CaSnO3:Tb3+ phosphors exhibit green-emitting color with the strongest peak at 542 nm. After increasing the contents of Eu3+, the emitting color of the co-activated CaSnO3 phosphors presents varied hues from green through white and eventually to red by energy transfer (ET) from Tb3+ to Eu3+. The mechanism of ET has been determined to be a quadrupole–quadrupole interaction. The results indicate that CaSnO3:Eu3+, Tb3+ might be served as an UV-convertible color-tunable phosphor.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Perovskite Materials and Applications · Radiation Detection and Scintillator Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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