Synthesis and energy transfer studies of LaMgAl11O19:Cr3+, Nd3+ phosphors
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Abstract
Abstract Cr 3+ /Nd 3+ co-activated LaMgAl 11 O 19 phosphors have been synthesized by high temperature solid-state method. In the LaMgAl 11 O 19 :Cr 3+ /Nd 3+ system, Cr 3+ can absorb the UV–vis photons (350–650 nm), and then energy transfer takes place between Cr 3+ and Nd 3+ , and finally the samples give near infrared emission originated from Nd 3+ . Energy transfer from Cr 3+ to Nd 3+ is discussed via the variations of the lifetime values of Cr 3+ , and the mechanism has been ascribed to the dipole–quadrupole interaction. The absorption of Cr 3+ in the visible region and the following energy transfer from Cr 3+ to Nd 3+ indicated that the material can potentially serve as spectral convertors to improve the photovoltaic conversion efficiency of silicon-based solar cell.
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Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Perovskite Materials and Applications · Radiation Detection and Scintillator Technologies
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