Cathodoluminescence and Raman analysis of the finite-size effects in mer-Alq3 structure

被引：10

作者：

Radu, I. C. ^{[1
]}

Polosan, S. ^{[1
]}

Enculescu, I. ^{[1
]}

Iovu, H. ^{[2
]}

机构：

[1] Natl Inst Mat Phys, R-77125 Bucharest, Romania

[2] Univ Politeh Bucharest, Adv Polymer Mat Grp, Bucharest, Romania

来源：

OPTICAL MATERIALS | 2012年 / 35卷 / 02期

关键词：

mer-Alq(3); Raman spectroscopy; Cathodoluminescence; Finite-size effect; SEM; SCATTERING; SPECTRA; GAAS; ALQ(3); ALQ3;

D O I：

10.1016/j.optmat.2012.08.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

As synthesized mer-Alq(3) powder, obtained by wet chemical synthesis, has been subjected to different new characterization techniques such as Energy Dispersive X-ray, Cathodoluminescence and Scanning Electron Microscopy in order to identify their structural and photophysical properties. Other common techniques like X-ray diffraction, Raman and Fourier Transform Infrared spectroscopy have been involved in order to prove the formation of mer-Alq(3) compound. The vibrational spectroscopic properties were interpreted by using the output files from Gaussian software with B3YLP functionals and 6-311(d) basic sets. The growth kinetic of mer-Alq(3) nanocrystals in the alpha-phase has been evaluated by using the finite-size effects based on the Raman position peaks and their linewidths, which confirms the semiconductor character of the mer-Alq(3) compound. The XRD results suggest that the isothermal annealing increases the mer-Alq(3) nanocrystals, which modify the regular shape of typical spectral parameters from Raman peaks. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：268 / 273

页数：6

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