Metal halide perovskites for photocatalysis applications

Abstract

Metal halide perovskite materials have made a significant breakthrough in diverse research fields over the last decade because of their high photoelectric conversion capability. However, there is a lack of...

Pb-free halide perovskites for solar cells, light-emitting diodes, and photocatalysts

“…The main requirements for a promising photocatalytic material are suitable band alignments and bandgaps, strong light absorption, high chemical stability, efficient charge carrier transport, and good operation in strong acidity and/or alkali environments. [211][212][213] Over the past few years, the potential of Pb-based halide perovskites has been investigated as a catalyst for photocatalytic hydrogen (H 2 ) evolution, CO 2 reduction reaction, and various organic synthesis or chemical reactions. 212,214 The performance of a complete water splitting system can be evaluated by introducing the solar-to-hydrogen (STH) conversion efficiency.…”

“…[211][212][213] Over the past few years, the potential of Pb-based halide perovskites has been investigated as a catalyst for photocatalytic hydrogen (H 2 ) evolution, CO 2 reduction reaction, and various organic synthesis or chemical reactions. 212,214 The performance of a complete water splitting system can be evaluated by introducing the solar-to-hydrogen (STH) conversion efficiency. 215 STH has reached nowadays values of 19% close to the theoretical limits (30% under light concentration), [216][217][218] but progress is needed to significantly lower the cost of the systems and enhance their operational stability.…”

An effective Fe(ii) doping strategy for stable and highly photoluminescent CsPbBrI2 nanocrystals

“…With the increasing demand for energy conversion, [1][2][3][4] optical displays, [5][6][7][8] signal detection, 9,10 biomedical imaging, 11,12 and reaction catalysis, 13,14 perovskite (ABX 3 ) materials, in particular all inorganic perovskite nanocrystals (PNCs, A is Cs; B is Pb; X is Cl, Br or I), have attracted considerable attention due to their convenient solution processability, flexible tunability of band gaps from the violet to near-infrared, narrow full width at half maximum (FWHM) and high photoluminescence quantum yields (PLQYs). 15,16 At present, CsPbX 3 NCs with PLQYs over 90% have been achieved, and the corresponding low-threshold amplified spontaneous emissive layers and high-efficiency light emission diodes (LEDs) have been constructed.…”

Revealing the Doping Effect of Cu2+ on SrSnO3 Perovskite Oxides for CO2 Electroreduction

“…Therefore, designing efficient catalysts that can regulate the selectivity of CER products is of great importance. [11][12][13][14] Profiting from their unique advantages, such as flexible composition, diverse structures, etc., [15][16][17] the ABO 3 perovskite oxides have shown potential in various catalytic reactions and already have the application in the fundamental research field of catalysis, for example, thermal catalysis, [18] photocatalysis, [19][20][21] electrocatalysis, [22][23][24][25] photo(electro)catalysis, [25,26] and so on. Research related to perovskite oxides as electrocatalysts has aroused strong research interest, [22] including oxygen evolution reaction (OER), oxygen reduction reaction (ORR), N 2 reduction reaction (NRR) and so on.…”