Unusual Photoluminescence of CaHfO3 and SrHfO3 Nanoparticles
Source abstract
Abstract
Abstract This article reports on optical properties of SrHfO3 and CaHfO3 nanoparticles with sizes as small as 1.6 nm, synthesized via non aqueous sol–gel routs for the first time. An unexpectedly strong luminescence from the undoped nanoparticles was observed in the visible spectrum over a wide temperature range, also exhibiting sensitivity to temperature variation and surrounding ambient (vacuum/air) and exposure time to UV light. A tentative model is proposed to explain these phenomena in terms of luminescent centers located at the surface of the nanoparticles.
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Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Electronic and Structural Properties of Oxides · Multiferroics and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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