Synthesis and purple-blue emission of antimony trioxide single-crystalline nanobelts with elliptical cross section

Deng, Zhengtao; Chen, Dong; Tang, Fangqiong; Ren, Jun; Muscat, Anthony J.

doi:10.1007/s12274-009-9014-y

Cited by 48 publications

(19 citation statements)

References 42 publications

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“…In the temperature range of 293−433 K, only 2 F 2g and 1 A g peaks of α-Sb 2 O 3 are detected. When the temperature rises to 453 K, a new broadening peak appears at 142.7 cm −1 , which originates from the A g mode of β-Sb 2 O 3 confirmed by calculated and measured spectra of orthorhombic phase Sb 2 O 3 32,33 . In the 453−673 K range, both α and β phases coexist in Sb 2 O 3 flake, which is a new mixed phase.…”

Section: Resultssupporting

confidence: 54%

Two-dimensional inorganic molecular crystals

et al. 2019

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Two-dimensional molecular crystals, consisting of zero-dimensional molecules, are very appealing due to their novel physical properties. However, they are mostly limited to organic molecules. The synthesis of inorganic version of two-dimensional molecular crystals is still a challenge due to the difficulties in controlling the crystal phase and growth plane. Here, we design a passivator-assisted vapor deposition method for the growth of two-dimensional Sb2O3 inorganic molecular crystals as thin as monolayer. The passivator can prevent the heterophase nucleation and suppress the growth of low-energy planes, and enable the molecule-by-molecule lateral growth along high-energy planes. Using Raman spectroscopy and in situ transmission electron microscopy, we show that the insulating α-phase of Sb2O3 flakes can be transformed into semiconducting β-phase under heat and electron-beam irradiation. Our findings can be extended to the controlled growth of other two-dimensional inorganic molecular crystals and open up opportunities for potential molecular electronic devices.

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Section: Resultssupporting

confidence: 54%

Two-dimensional inorganic molecular crystals

et al. 2019

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“…[37][38][39][40] The bands near 2950 cm À1 correspond to C-H group symmetric stretch vibrations, and that near 850 cm À1 is mainly due to C-N bending vibrations. [41][42][43] The band near 1850 cm À1 can be attributed to C=O stretching vibrations. 44…”

Section: Fourier Transform Infrared Spectroscopymentioning

confidence: 99%

Impedance Spectroscopic Studies of B2O3-Substituted CeO2-Gd2O3 Systems

Priya

Sandhya

Rajendran

2020

Journal of Elec Materi

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In this paper, the change in the conduction mechanism due to B 2 O 3 addition in a ceria-based nanoceramic system is understood by studying the nature of conductivity and the variation of electric modulus function with frequency at different temperatures. The studies revealed that oxide ion conduction in the prepared system is prominent only after 500°C. The activation energy for electrical conduction and oxide ion hopping in the system is found to be 0.26 eV and 0.85 eV, respectively. The discrepancy in the values of the activation energies itself is evidence of a different mechanism other than oxide ion hopping occurring in the present sample. The electric modulus function shows two relaxation peaks at lower temperatures corresponding to short-range and long-range relaxation for the charge carriers. Relaxation energies for the processes are found to be 0.27 eV and 0.95 eV. This is evidence of the occurrence of Maxwell-Wagner relaxation phenomena in the ceramic system. Explicitly, thermally activated oxide ion migration, along with the relaxation of electrons at the site of the bound pair (B-V o) AE is observed in the prepared nanocrystalline system.

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“…However other signals at 590 and 687 cm −1 were identified with the reported datas corresponding to the Sb O stretching vibrations. 13 Figure 5 exhibits the typical XRD pattern of synthesized Sb 2 O 3 nanopowder and shows that all diffraction peaks can be indexed to orthorhombic phase and matched with JCPDS card no. 011-0691, thereby supporting the Sb 2 O 3 nanopowder was obtained with high purity with single phase.…”

Section: Characterizationmentioning

confidence: 69%

Synthesis and Characterizations of Antimony Oxide Nanosheets Prepared by Facile Wet Chemical Method

Hashmi¹,

Athar²

2013

mater focus

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Sb 2 O 3 nanopowder with sheet structure has been synthesized in mild conditions using chimie douce. The nanopowder was characterized by using different techniques. Optical properties were studied using ultra violetvisible spectroscopy. Bond stretching and bending were scrutinized by FT-IR spectroscopy and micro-Raman spectroscopy. Thermal stability was investigated by thermogravimetric analysis and differential thermal analysis. Particle size and crystallinity was deduced from the X-ray diffraction. Energy-dispersive X-ray spectroscopy and scanning electron microscopy were used to probe the composition and morphology. Transmission electron microscopy and selected area electron diffraction were used to examine the size and shape. Brunauer Emmett Teller method was used to calculate the surface area of the nanopowder. The X-ray diffraction supports the formation of orthorhombic phase with a particle size of 40.83 nm.

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Synthesis and purple-blue emission of antimony trioxide single-crystalline nanobelts with elliptical cross section

Cited by 48 publications

References 42 publications

Two-dimensional inorganic molecular crystals

Two-dimensional inorganic molecular crystals

Impedance Spectroscopic Studies of B2O3-Substituted CeO2-Gd2O3 Systems

Synthesis and Characterizations of Antimony Oxide Nanosheets Prepared by Facile Wet Chemical Method

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