These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Optical properties and electronic band structure of AgGaTe2 chalcopyrite semiconductor.
    Author: Arai S, Ozaki S, Adachi S.
    Journal: Appl Opt; 2010 Feb 10; 49(5):829-37. PubMed ID: 20154750.
    Abstract:
    The optical properties of AgGaTe(2) chalcopyrite semiconductor are studied by optical absorption, spectroscopic ellipsometry (SE), and thermoreflectance (TR) spectroscopy. Optical absorption spectra suggest that AgGaTe(2) is a direct-gap semiconductor having a bandgap of approximately 1.2 eV at T=300 K. The pseudodielectric-function spectra of AgGaTe(2) are determined by SE in the range between E=1.2 and 5.2 eV for both states of polarization. These spectra reveal distinct structures at energies of the critical points in the Brillouin zone. The TR spectra are also measured in the E=1.0-5.3 eV ranges at T=20 K-300 K. The spin-orbit and crystal-field splitting parameters of AgGaTe(2) are determined to be Delta(so)=0.70 eV and Delta(cr)=-0.23 eV, respectively.
    [Abstract] [Full Text] [Related] [New Search]