Since the first publication by Miyasaka in 2009 on the use of lead halide perovskite as a light-
harvesting material (Kojima, A.; Teshima, K.; Shirai, Y.; Miyasaka, T. Organometal Halide …

Upconversion of near-infrared light into the visible has achieved limited success in
applications due to the difficulty of creating solid-state films with high external quantum …

The search for new materials capable of efficient upconversion continues to attract attention.
In this work, a comprehensive study of the upconversion luminescence in PbF2: Er3+, Yb3+ …

More complete recycling of plastic waste is possible only if new technologies that go beyond
state-of-the-art near-infrared (NIR) sorting are developed. For example, tracer-based sorting …

Solar energy constitutes a major share of the total renewable energy produced all over the
world. Different types of photovoltaics, including silicon, perovskite, and dye-sensitized solar …

Perovskite solar cells (PSCs) have been considered as one of the most promising
photovoltaics, and the power conversion efficiency (PCE) has been boosted to 26.0% in …

In this work, a new NIR phosphor Ca2GeO4: xCr was developed, whose emission range
(1000–1700 nm) is well within NIR-II, with a full width at half maximum (FWHM) of 215 nm …

The additive effect of a gadolinium ion into a formamidinium lead iodide (FAPbI 3) perovskite
crystal on electronic structures and molecular dynamics was investigated for improving …

The major challenge in optical ceramic technology is the quality of the starting precursor
powder for pressing, which is a key element in the optical ceramic industry. One express and …

Using multilayer structures of upconversion nanophosphors is widely considered an
effective and necessary strategy to achieve efficient luminescence. However, the synthesis …