articleTop 10% cited

Correlation between photoluminescence and oxygen vacancies in ZnO phosphors

Applied Physics Letters · 1996 · Vol. 68(3) · pp. 403–405

K. Vanheusden✉(Sandia National Laboratories)C. H. Seager(Sandia National Laboratories)W. L. Warren(Sandia National Laboratories)D. R. Tallant(Sandia National Laboratories)J. Voigt(Sandia National Laboratories)

View via DOI Publisher page

Abstract

By combining electron paramagnetic resonance (EPR), optical absorption, and photoluminescence (PL) spectroscopy, a strong correlation is observed between the green 510 nm emission, the free-carrier concentration, and the density of singly ionized oxygen vacancies in commercial ZnO phosphor powders. From these results, we demonstrate that free-carrier depletion at the particle surface, and its effect on the ionization state of the oxygen vacancy, can strongly impact the green emission intensity. The relevance of these observations with respect to low-voltage field emission displays is discussed.

Luminescence Properties of Advanced Materials Gas Sensing Nanomaterials and Sensors Ga2O3 and related materialsPhotoluminescencePhosphorElectron paramagnetic resonanceMaterials scienceSpectroscopyOxygenIonizationAnalytical Chemistry (journal)Absorption (acoustics)Chemistry

Citations

1,992

FWCI

5.41

field-weighted impact

References

Percentile

96%

vs. same field & year

Citations per year

Cited by

Defect emissions in ZnO nanostructures