2012
DOI: 10.1002/adfm.201200221
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Response to “Comment on ‘Unusual Photoluminescence of CaHfO3 and SrHfO3 Nanoparticles’”

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Cited by 4 publications
(3 citation statements)
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“…This strongly suggests that adsorbents associated with residual solvents indeed act as non-radiative recombination centers in support to assumptions proposed earlier [13]. On the other hand, the comparison of the present PL results with those obtained earlier from the elongated (85×105nm) monoclinic HfO 2 nanoparticles synthesized using microwave hydrothermal method not involving organic chemicals [14] allows us to exclude the possibility that strong visible PL originates from organic species adsorbed on the surface, as we have clarified recently [15]. It should also be noted that the employed 3.8 eV photon energy is insufficient for excitation of organic species usually exhibiting absorption thresholds in excess of 4.2 eV.…”
Section: Photoluminescence Propertiessupporting
confidence: 92%
“…This strongly suggests that adsorbents associated with residual solvents indeed act as non-radiative recombination centers in support to assumptions proposed earlier [13]. On the other hand, the comparison of the present PL results with those obtained earlier from the elongated (85×105nm) monoclinic HfO 2 nanoparticles synthesized using microwave hydrothermal method not involving organic chemicals [14] allows us to exclude the possibility that strong visible PL originates from organic species adsorbed on the surface, as we have clarified recently [15]. It should also be noted that the employed 3.8 eV photon energy is insufficient for excitation of organic species usually exhibiting absorption thresholds in excess of 4.2 eV.…”
Section: Photoluminescence Propertiessupporting
confidence: 92%
“…XRD measurements performed on oxide metal nanoparticles show that all NPs are highly crystalline, ZnO NPs have the hexagonal wurtzite-analogous (P6 3 mc) crystal structure (a = 3.25 Å and c = 5.20 Å) (15) and the hafnia perovskites SHO and CHO have the cubic perovskite (Pm-3m) structure with the lattice parameters a SHO = 4.06 Å and a CHO = 3.99 Å, respectively. Synchrotron measurements confirmed the presence of the perovskite structure (18). It should be mentioned the presence of cubic (Fm-3m) HfO 2 nanoparticles presence in the hafnia perovskite nanoparticles as secondary phases.…”
Section: Structural Propertiesmentioning
confidence: 56%
“…CaHfO 3 and SrHfO 3 nanoparticles were also embedded into europium and neodymium rare earth thin film and are named Eu_CHO, Nd_CHO, Eu_SHO and Nd_SHO, respectively (See table 1). The complete characterization of the ZnO, CHO and SHO free-standing nanoparticles can be found in refs (15,16,18), respectively.…”
Section: Resultsmentioning
confidence: 99%