Photovoltaic (PV) technologies for solar energy conversion represent promising routes to
green and renewable energy generation. Despite relevant PV technologies being available …

This paper discusses lanthanide doped luminescent materials which can modify the solar
spectrum to reduce the spectral losses encountered by PV (photovoltaic) devices and …

Halide perovskites have shown great promise in optoelectronics and photovoltaics owing to
their outstanding photoelectrical properties. However, their inherent shortcomings, such as …

Conventional photoluminescence (PL) yields at most one emitted photon for each
absorption event. Downconversion (or quantum cutting) materials can yield more than one …

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 …

Solar energy harvesting is largely limited by the spectral sensitivity of the employed energy
conversion system, where usually large parts of the solar spectrum do not contribute to the …

We report on near-infrared (NIR) down-conversion by energy transfer between Mn2+ and
Yb3+ in crystalline Zn1. 96− xGeO4+ 1/2x: Mn0. 04Ybx. In the Zn2GeO4 lattice, intrinsic …

The photoluminescent phosphor materials nowadays are extremely important source of light
to fulfill the technological demand over the conventional light source for eco-friendly …

Rare earth doped/codoped phosphors have been extensively studied for different types of
applications based on their intense luminescence features. For this, researchers have tried …

We report on spectral modification through NIR down-conversion (DC) photoluminescence
(PL) in Yb3+-Bi3+-co-doped Zn2GeO4. Energetic downshifting (DS) of UV-A irradiation …