Synthesis and up-conversion luminescence of Yb3 + –Ho3 + co-doped Na(Y1·5Na0·5)F6 nanorods
Source abstract
Abstract
We present the optical up-conversion (UC) study for Yb3 + –Ho3 + co-doped Na(Y1·5Na0·5)F6 nanorods synthesized by employing a facile hydrothermal method. Numbers of Ho3 + ion up-conversion emissions have been observed under 980 nm infrared diode laser excitation. Three UC emissions of interest, ultraviolet, violet and blue, are specially identified at 359, 387, 418 and 483 nm, corresponding to \(5{{G}}\prime5{/}3\!{{H}} 6\to\ 5\!{ {I}} 8\), \( 5\!{ {G}} 4{/} 3\!{ {K}} 7\to\ 5\!{ {I}} 8\), \( 5{ {G}} 5\to\)\( 5\!{ {I}} 8\) and \( 5\!{ {F}} 3{/} 5\!{ {F}} 2{/} 3\!{ {K}} 8\to {} 5\!{ {I}} 8\) transitions, respectively. It is also found that the centre wavelength of blue UC emission shifts to 475 nm gradually as Ho3 + concentration decreases. Lastly, a brief analysis about UC mechanism is demonstrated according to the experimental results.
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Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Solid State Laser Technologies · Inorganic Fluorides and Related Compounds
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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