Multiple energy applications of quantum-dot sensitized TiO2/PbS/CdS and TiO2/CdS/PbS hierarchical nanocomposites synthesized via p-SILAR technique

Quantum-dot sensitized hierarchical NiO p–n heterojunction for effective photocatalytic performance

“…Different numbers of QDs cycles were deposited on NiO to make an effective p–n heterojunction by using this p-SILAR technique. 37 …”

“…13,14 In order to prepare hierarchical NiO/CdS QDs p-n heterojunction we utilized already optimized recipes 14 (0.15 g of NiO powder) into the centrifuge tube and poured with 20 mL of cationic precursor. 13,14,37 Then it was centrifuged at 8000 revolutions per minute (rpm) for 5 minutes. Later, 20 mL of methanol was poured to remove loosely attached Cd-ions.…”

Aluminum Doping Effects on Interface Depletion Width of Low Temperature Processed ZnO Electron Transport Layer-Based Perovskite Solar Cells

“…Many metal oxides such as ZnO ( Gupta, 1990 ), TiO 2 ( Mughal et al, 2019 ), SnO 2 , and ZnSO 4 have been utilized as an electron transport layer for better extraction of charge ( Akimoto, 2012 ). Also, various research groups have studied core-shell nanoparticles TiO 2 /MgO ( Karuppuchamy and Brundha, 2015 ), Al 2 O 3 /ZnO, and WO 3 /TiO 2 for charge blockage, and enhanced charge recombination resistance by such material which is an insulator with effective charge deployment and charge transports.…”

Nanoscale Metal Phosphide Phase Segregation to Bi/P Core/Shell Structure. Reactivity as a Source of Elemental Phosphorus

“…10 Among them, bismuth phosphide is particularly appealing since it is isoelectronic with PbS, a well-known intrinsic semiconductor used for an extensive range of applications, but exhibiting strong environmental constraints. [11][12][13][14][15][16][17] Concerning its preparation, two synthetic approaches have been reported to obtain Bi x P y . The first methodology relied on the dissolution of phosphorus in molten bismuth, which however did not lead to the desired compound but to the segregation of the elements into their pure form, leading to the synthesis of black and violet allotropes of P, and Bi(0).…”

“…Bulk metal phosphides (M x P y ) are nowadays receiving intense attention in the field of materials due to their wide scope of properties and applications in metallurgy and semiconductors for electronics or optics, among others. − The structure and composition of these M x P y binary species have been accurately analyzed for almost all combinations with metals, except with the heavy elements of group 15 (As, Sb, Bi) . Among them, bismuth phosphide is particularly appealing because it is isoelectronic with PbS, a well-known intrinsic semiconductor used for an extensive range of applications, but exhibiting strong environmental constraints. − …”