Hexagonal cesium tungsten bronze (CsWO) nanoparticles (NPs) have attracted attention for their potential applications in near-infrared (NIR) absorbing materials. However, the insufficient Cs doping in CsWO NPs has limited their NIR absorbing capabilities and practical stability. In this study, we demonstrate the transition pathway from intermediate W-defective CsWO NPs synthesized by flame spray pyrolysis to cationic (Cs, W)-disordered CsWO NPs prepared through appropriate heat treatments. Direct atomic observations reveal the basal shear and prismatic (Cs, W)-defective planes, which contributed to the disorder of full Cs doping in CsWO NPs. The obtained CsWO NPs with cationic disorder exhibited enhanced practical performance compared with conventional CsWO NPs. Therefore, the developed approach that regulates cationic disorder enables the rational design of defective metal oxides for a variety of applications, including NIR absorbing materials.
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| http://dx.doi.org/10.1021/acs.inorgchem.3c03666 | DOI Listing |
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Hyperthermia Induced by Near-Infrared Laser-Irradiated CsWO Nanoparticles Disintegrates Preformed Lysozyme Amyloid Fibrils.
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