Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
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Synthesis of co-doped Yb 3+ -Er 3+ :ZrO 2 upconversion nanoparticles and their applications in enhanced photovoltaic properties of quantum dot sensitized solar cells
A universal approach for calculating the Judd–Ofelt parameters of RE
<sup>3+</sup>
in powdered phosphors and its application for the β-NaYF
<sub>4</sub>
:Er
<sup>3+</sup>
/Yb
<sup>3+</sup>
phosphor derived from auto-combustion-assisted fluoridation
Extended color tunability and efficient white-light generation through the construction of β-NaYF4: Yb3+/Tm3+/Ho3+ @NaYF4 core-shell structured nanocrystals
Optical Transition, Excitation State Absorption, and Energy Transfer Study of Er
<sup>3+</sup>
, Nd
<sup>3+</sup>
Single‐Doped, and Er
<sup>3+</sup>
/Nd
<sup>3+</sup>
Codoped Tellurite Glasses for Mid‐Infrared Laser Applications
Temperature sensing, excitation power dependent fluorescence branching ratios, and photothermal conversion in NaYF_4:Er^3+/Yb^3+ @NaYF_4:Tm^3+/Yb^3+core-shell particles
Real-time deep-tissue thermal sensing with sub-degree resolution by thermally improved Nd3+:LaF3 multifunctional nanoparticles
The 4 references without a DOI — listed, not checked
no DOI — not checkedBlue-pumped deep ultraviolet lasing from lanthanide doped Lu6O5F8 upconversion nanocrystals
no DOI — not checkedHigh-sensitivity imaging of time-domain near-infrared light transducer
no DOI — not checkedEffect of NaOH concentration on the 805 nm emission of NaYF4:Yb3+, Tm3+ phosphors synthesized by a pressure-assisted hydrothermal method
no DOI — not checkedTunable multicolor and white emission NaLuF4:Yb, Nd, Ln (Ln = Er, Tm, Er/Tm) microstructures
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