Highly luminescent and ultrastable cesium lead bromide perovskite patterns generated in phosphate glass matrices

Abstract

<p>A simple and low temperature post-glass quenching encapsulation method for the formation of highly luminescent and ultrastable perovskite patterns within phosphate glass.</p>

Power Dependent Hot Carrier Cooling Dynamics in Trioctylphosphine Capped CsPbBr3 Perovskite Quantum Dots Using Ultrafast Spectroscopy

“…In the past, researchers have attempted to enhance the stability of PQDs by inserting mesoporous silica, [11] intermolecular C=C bonding, [12] alkyl phosphate layer, [13] chemical doping [14–17] . However, for the same objective i. e., for the enhancement in the stability of the PQDs, there are recently reported state‐of‐the‐art strategies which involve the encapsulation of PQDs structures within additional types of transparent inorganic oxide glasses [18,19] . Therefore, several strategies are taken into account for the fabrication of various PQDs, [20] for instance, calibrating the quantity of oleic acid (OA), oleylamine (OLA), and Cs‐precursor, [21] switching the environment of solution or surface linker molecules (i. e., ligands) of PQDs [22] .…”

“…[14][15][16][17] However, for the same objective i. e., for the enhancement in the stability of the PQDs, there are recently reported state-ofthe-art strategies which involve the encapsulation of PQDs structures within additional types of transparent inorganic oxide glasses. [18,19] Therefore, several strategies are taken into account for the fabrication of various PQDs, [20] for instance, calibrating the quantity of oleic acid (OA), oleylamine (OLA), and Cs-precursor, [21] switching the environment of solution or surface linker molecules (i. e., ligands) of PQDs. [22] Earlier works suggested that the issues of instabilities come to the fore in PQDs, specifically from the exploitation of long-chain linker molecules, such as OA and OLA.…”

Low-Temperature Molten Salts Synthesis: CsPbBr3 Nanocrystals with High Photoluminescence Emission Buried in Mesoporous SiO2

“…1−8 However, the effective implementation of these NCs in industrial manufacturing processes is limited by their poor stability, which leads to their degradation when they are exposed to humidity, high temperature, and photoirradiation. 9−12 In order to solve this issue, in recent years different strategies aimed at protecting LHP NCs have been devised, with the most promising ones being their encapsulation in polymers, 13−17 inorganic matrixes 18,19 (including metal oxide, e.g., SiO 2 , TiO 2 , Al 2 O 3 20−28 and metal halide 29 ) or hybrid compounds (e.g., metal−organic frameworks, MOFs). 30−32 The reported LHP/polymer nanocomposites are characterized by a high PLQY and good moisture/water resistance but a weak thermal resistance.…”

Advanced composite glasses with metallic, perovskite, and two-dimensional nanocrystals for optoelectronic and photonic applications

“…Within the same year, Konidakis et al reported for the first time a feasible method for the development of PV-glasses by means of PNC post-melting encapsulation and low-temperature annealing treatment (Table 2). 104 Based on this approach, pre-synthesized CsPbBr 3 PNCs were encapsulated within a ‘soft’ silver metaphosphate (AgPO 3 ) glass. Notably, the PNCs were derived from a facile room-temperature co-precipitation method, whereas the selection of the AgPO 3 glass was prompted by its low T g of 192 °C, and high transparency in most of the visible range.…”