AVS 49th International Symposium
    Thin Films Tuesday Sessions
       Session TF-TuP

Paper TF-TuP16
Pulsed Laser Deposited Zn@sub 2@GeO@sub 4@: Mn Thin Films for Field Emission Displays

Tuesday, November 5, 2002, 5:30 pm, Room Exhibit Hall B2

Session: Poster Session
Presenter: L.C. Williams, University of Florida
Authors: L.C. Williams, University of Florida
D.P. Norton, University of Florida
P.H. Holloway, University of Florida
Correspondent: Click to Email
Field emission displays (FEDs) are among several technologies competing to become the principal device in the flat panel display market. Thus, the development of low voltage phosphors are critical. Thin film phosphors offer the following advantages over powder phosphors: better mechanical integrity, more efficient use of material, and better heat sinking. Thin film Zn@sub 2@GeO@sub 4@: Mn has been pulsed laser deposited in this study and its cathodoluminescent properties were characterized. The Zn@sub 2@GeO@sub 4@: Mn thin films were deposited onto MgO, yttria stabilized zirconia (YSZ), and Si substrates. In addition, the deposition temperature was varied from 600 to 750 °C. The best cathodoluminescent brightness was observed from YSZ substrates. A green cathodoluminescent emission peak at 540 nm was observed for depositions at temperatures @>=@ 650 °C. At a deposition temperature of 600 °C, a red shifted emission peak was observed at 650 nm. Observation of the red shifted peak correlated with the lack of crystallinity in the films deposited at 600 °C. The shift in emission will be discussed in view of reports that the emission from Mn is sensitive to the symmetry (octahedral versus tetrahedral) in a host lattice.