Previous confirmation of the existence of ZnO and Co3O4 phases was based on the X-ray diffraction measurements. Here we report the experimental spectra of non-resonant Raman scattering in the range between 100 cm(-1) and 1600 cm(-1), for a series of samples irradiated with four different...
The Raman and infrared spectra of the Zn-rich powder are shown in Fig. 4. In the Raman spectrum, the peaks at ∼241,∼286, ∼398, and ∼485 cm−1 correspond to Raman active modes of Fe3O4 [73], ZnFe2O4 [73], ZnCl2–KCl [74], and ZnO [75]. In the infrared spectru...
Phonon confinement and size effect in Raman spectra of ZnO nanoparticles Heliyon, 5 (2019), Article 1–14 Google Scholar [65] M. Tanwar, P. Yogi, S. Lambora, S. Mishra, S.K. Saxena, P.R. Sagdeo, A.S. Krylov, R. Kumar Generalisation of phonon confinement model for interpretation ...
Anomalous Raman Scattering of Colloidal Yb3+,Er3+ Codoped NaYF4 Nanophosphors and Dynamic Probing of the Upconversion Luminescence Size-dependent Raman spectra of the hexagonal ()-phase Yb3+,Er3+ codoped NaYF4 nanophosphors and dynamic probing of the upconversion luminescence (UCL) are... J Sha...
The photoluminescence (PL) and Raman scattering of SnO x nanoparticles deposited from vapor phase have been studied. The PL spectra are characterized by a two-band structure. The high-energy band in the range from 300 to 350 nm is due to the exciton pair annihilation and may characterize the...
Temperature dependence of Raman scattering in Ge1-xSix alloys DOI: HH Burke,IP Herman - 《Phys Rev B Condens Matter》 被引量: 130发表: 1993年 Temperature dependence of the raman scattering spectra of Zn/ZnO nanoparticles By using the gas-evaporation technique with an induction heating method,...
Owing to the physical mechanism at their basis, Raman spectra are sensitive to any change in the material that alters the energy of optical phonons, like the breaking or formation of chemical bonds, phase transitions, residual strain/stress, or the presence of lattice defects. One of the ...
The concentration of nanoparticles in solution could be obtained with sensitivity for concentrations in the millimolar range. Raman modes of other nanoparticles such as CdTe have also been examined. 展开 关键词: II-VI semiconductors Raman spectra holey fibres nanoparticles photonic crystals zinc compounds...
X-ray diffraction indicated a pure hexagonal phase (space group P63/m) of the rods. The relations between structural and optical properties of Eu(OH)3 rods under high pressures were obtained by photoluminescence (PL) and Raman spectra. Two structural phase-transition points at around 4 and 8 ...
Analysis of these single-fiber spectra, ... LM Bellan,HG Craighead - 《Polymer》 被引量: 69发表: 2008年 Ultraviolet Nanoplasmonics: A Demonstration of Surface-Enhanced Raman Spectroscopy, Fluorescence, and Photodegradation Using Gallium Nanoparticles Self-assembled arrays of hemispherical gallium ...