Facile Production of CsPbBr3 Perovskite Single-Crystals in a Hydrobromic Solution

Solution-Grown CsPbBr3 Perovskite Single Crystals for Photon Detection

Facile synthesis of CsPbBr3/PbSe composite clusters

In this work, CsPbBr3 and PbSe nanocomposites were synthesized to protect perovskite material from self-enlargement during reaction. UV absorption and photoluminescence (PL) spectra indicate that the addition of Se into CsPbBr3 quantum dots modified the electronic structure of CsPbBr3, increasing the band gap from 2.38 to 2.48 eV as the Cs:Se ratio increased to 1:3. Thus, the emission color of ...

Thermal degradation of luminescence in inorganic perovskite CsPbBr3 nanocrystals.

The luminescence properties of inorganic perovskite CsPbBr3 nanocrystals (NCs) with emissions of 492 and 517 nm under thermal annealing treatment were studied by temperature-dependent photoluminescence (PL) spectroscopy. The CsPbBr3 NCs were annealed in vacuum at various temperatures. It was found that the NCs exhibited significant thermal degradation of PL at thermal annealing temperatures abo...

Ultrahigh sensitivity of methylammonium leadtribromide perovskite single crystals toenvironmental gases

D ow nladed fom One of the limiting factors to high device performance in photovoltaics is the presence of surface traps. Hence, the understanding and control of carrier recombination at the surface of organic-inorganic hybrid perovskite is critical for the design and optimization of devices with this material as the active layer. We demonstrate that the surface recombination rate (or surface t...

Modulation of Charge Recombination in CsPbBr3 Perovskite Films with Electrochemical Bias

The charging of a mesoscopic TiO2 layer in a metal halide perovskite solar cell can influence the overall power conversion efficiency. By employing CsPbBr3 films deposited on a mesoscopic TiO2 film, we have succeeded in probing the influence of electrochemical bias on the charge carrier recombination process. The transient absorption spectroscopy experiments conducted at different applied poten...