Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Optical properties of crystalline and ion-beam amorphized Bi12GeO20: Relevance for waveguide applications
Year:2015
Research Areas
  • Engineering
Information
Abstract
Crystalline Bi12GeO20 samples were irradiated with F ions at 30 MeV. Spectroscopic ellipsometry measurements were used to determine the optical constants of the pristine and irradiated material. The critical points model was used to represent the material?s dielectric function. Excellent fits of the experimental ellipsometry measurements were obtained in both, the pristine and irradiated samples. Moreover, a very good agreement was also found between the ellipsometric determination of thickness and that predicted by SRIM calculations. Tauc plots revealed an energy gap of 2.82 ± 0.02 eV for the crystalline phase that is red-shifted to 2.37 ± 0.04 eV in the irradiated material. ?
International
Si
JCR
Si
Title
OPTICAL MATERIALS
ISBN
0925-3467
Impact factor JCR
Impact info
Volume
47
Journal number
From page
328
To page
332
Month
SIN MES
Ranking
Participants
  • Autor: Ovidio Yordanis Peña Rodriguez (UPM)
  • Autor: J. Olivares (Centro de Micro-Análisis de Materiales, Universidad Autónoma de Madrid)
  • Autor: I. Bányász (Department of Nuclear Materials Science, Wigner Research Centre for Physics of the Hungarian Academy of Sciences)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Fusión Nuclear Inercial y Tecnología de fusión
  • Centro o Instituto I+D+i: Instituto de Fusión Nuclear
S2i 2021 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)