Zhichun Li

TL;DR: A simpleSiO2 generation method based on the high hydrolysis rate of tetramethyl orthosilicate in analytical-grade toluene was developed to avoid the addition of water and catalyst and indicated that the SiO2-encapsulated CH3NH3PbBr3 quantum dots were markedly more stable than the un encapsulated MAPB-QDs.

TL;DR: It is shown that the preliminary ligand exchange of didodecyl dimethyl ammonium bromide (DDAB) was very important to protect CsPbBr3 QDs from surface damages during the sol-gel reaction, which not only allowed to maintain the original optical properties of Cs PbBr 3 QDs but also prevented the aggregation of QDs and made the monolith transparent.

TL;DR: Materials with switchable fluorescence possess great potential for information encryption applications, but systems where the off state is invisible are lacking, so the authors print patterns of colourless metal organic frameworks and reversibly transform these inks into fluorescent perovskite nanocrystals.

TL;DR: It is confirmed that oxygen is the crucial factor to drive the color change, which has the strong synergistic effect with the illumination and moisture for the degradation of the CPB film.

TL;DR: C ceramic-like stable and highly luminescent CsPbBr3-SiO2 NCs are synthesized by encapsulating them into silica derived from molecular sieve templates at high temperature (600–900 oC).