Numerous investigations have been done in pursuing phosphors with quantum yield (QY)
greater than unity in terms of downconversion (DC) strategies, as well as applications in …

Near-infrared (NIR) light has attracted considerable attention in diverse applications, such
as food testing, security monitoring, and modern agriculture. Herein, the advanced …

Distinctive upconversion or downshifting of lanthanide nanocrystals holds promise for
biomedical and photonic applications. However, either process requires high-energy lasers …

In this work, we report a comparative study on upconversion and downshifting properties of
Ho 3+-Yb 3+ co-doped ATiO 3 (A= Ca, Ba & Sr) perovskite phosphors for the first time. The …

Considering the important applications of near infrared light sources, phosphors emitting in
this region are always explored. New hosts are studied for this purpose. Kee** with this …

The perovskite based phosphor materials are widely used to increase the efficiency of solar
cells. In this work, Er 3+ doped and Er 3+/Yb 3+ co-doped CaTiO 3 perovskite phosphor …

The importance of solar energy can never be over-emphasized. Photovoltaic conversion is
the most convenient method for harnessing solar energy. The demand for solar electricity …

This work reports the color tunable emission from Ho 3+/Tm 3+/Yb 3+ co-doped YTaO 4
phosphors synthesized through high temperature solid state reaction method. Pure phase …

A series of crystalline powder samples of K 2 YF 5: 1.0% Nd 3+, x% Yb 3+(x= 0, 2.0, 5.0 and
8.0) were prepared by hydrothermal synthesis method. The excitation and emission spectra …

As alternatives to Yb 3+-sensitized up-conversion (UC) materials excited at 980 nm, Nd 3+-
sensitized UC phosphors irradiated by 808 nm have been used to decrease the absorption …