Synthesis, surface structure and optical properties of double perovskite Sr2NiMoO6 nanoparticles

Rationalization of Double Perovskite Oxides as Energy Materials: A Theoretical Insight from Electronic and Optical Properties

“…The photoluminescence study on SNMO shows an average lifetime of the system to be 11.2 μs. 16 This Rai et al studied the magnetic properties of A 2 FeReO 6 (A = Sr, Ba). 17 With the analysis of density of states (DOS) and band structure in A 2 FeReO 6 (A = Sr, Ba), they clearly observed the ground state of Sr-based Sr 2 FeReO 6 to be a ferrimagnetic metal with the Fe d states contributing a VBM at 2.0 eV and a CBM at 2.2 eV.…”

“…In addition, O 2 evolution may also be observed since the VB is more positive than the O 2 oxidation energy. The photoluminescence study on SNMO shows an average lifetime of the system to be 11.2 μs . This large carrier lifetime dictates the importance of Ni ions in delaying the recombination of excitons.…”

“…Advanced studies in perovskites reveals the new family of complex DPOs. , In general, the 3d and 4d electron configuration and their multivalency features make transition metal elements the best candidates to be occupied in the B-site cation position. − It is also worthy to note that the transition metal oxides exhibit perovskite-like structure and possess extensive physical properties, making the perovskite constituted with these transition elements a better solar-cell material. − Along with other components, the BX 6 octahedral tilt further stabilizes the perovskite oxide structure by lowering the crystal symmetry . In addition, the cation ordering in such perovskites also plays a pivotal role in obtaining better stability.…”

“… 13 − 15 It is also worthy to note that the transition metal oxides exhibit perovskite-like structure and possess extensive physical properties, making the perovskite constituted with these transition elements a better solar-cell material. 16 − 19 Along with other components, the BX 6 octahedral tilt further stabilizes the perovskite oxide structure by lowering the crystal symmetry. 10 In addition, the cation ordering in such perovskites also plays a pivotal role in obtaining better stability.…”

Interfacial Interactions in Monolayer and Few‐Layer SnS/CH3NH3PbI3 Perovskite van der Waals Heterostructures and Their Effects on Electronic and Optical Properties

“…[16] In particular, experiments have demonstrated that long-range hot-carrier transportc an persist over tens of picoseconds and about 600 nm in MAPbI 3 ,w hich make it an excellent light absorber in solar cells, [17][18][19][20] with potential applicationsi np hotocatalysis. [21][22][23] However, water molecules can interact with its crystal lattice through hydrogen bonding, resulting in collapse of the MAPbI 3 crystal structure. Its instability upon exposure to humid air and in aqueous solutions hinders the application of MAPbI 3 as ap hotocatalyst.…”