Preparation and Comparison of the Photoelectronic Properties of Sr2Nb207 and Ba0.5Sr0.5Nb2O6.

Abstract

The two alkaline earth niobates Sr2Nb2O7 and Ba0.5Sr0.5NbO6 have been prepared, their electronic properties measured, and their photoresponses compared. The indirect band gap in Sr2Nb2O7 is 3.86 eV compared with 3.38 eV for Ba0.5Sr0.5Nb2O6. Hence, photoanodes composed of Sr2Nb2O7 respond to much less of the white light spectrum than those made from Ba05Sr0.5Nb2O6. Nevertheless, their electrical outputs at an anode potential of 0.8 eV with respect to SCE in 0.2 M sodium acetate under 'white' xenon arc irradiation of 1.25 W/cm2 are comparable. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 20, 1979
Accession Number
ADA073192

Entities

People

  • Aaron Wold
  • J. Hormadaly
  • Kirby Dwight
  • Robert N. Kershaw
  • S. N. Subbarao

Organizations

  • Brown University

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Band Gaps
  • Chemical Compounds
  • Chemistry
  • Colorado
  • Electronics
  • Energy Bands
  • Materials
  • Measurement
  • Military Research
  • New Jersey
  • New York
  • Quantum Efficiency
  • Rhode Island
  • Semiconductors
  • Spectra
  • United States
  • Universities

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Pulsed Power and Plasma Physics.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene