Graduate Thesis Or Dissertation

 

Oxide phosphors deposited by activated reactive evaporation for ACTFEL device applications Public Deposited

Downloadable Content

Download PDF
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/6t053j36r

Descriptions

Attribute NameValues
Creator
Abstract
  • The goal of this thesis study is to develop an activated reactive evaporation (ARE) system and to demonstrate its utility by fabricating-alternating current thin-film electroluminescent (ACTFEL) oxide phosphor devices. ARE entails evaporation in an activated gas. The main ARE system components are three thermal evaporation sources, a microwave power supply, an electron cyclotron resonance plasma (ECR) source, a substrate heater/controller, a film thickness monitor, and a leak valve for gas flow control. Ga₂0₃:Eu ACTFEL devices are fabricated using the ARE system. The maximum Ga₂O: deposition rate is approximately 2 nm/s. As-deposited films are transparent, insulating, and amorphous with an index of refraction of 1.68 and an optical bandgap of 4.25-4.9 eV. Ga₂O₃ films are typically amorphous until annealed above 1000°C in a furnace or by rapid thermal annealing. However, when hydrothermal annealing is employed, Ga₂O₃ films crystalize at temperatures as low as 450°C. Electrical and optical characterization indicates that the Ga₂O₃:Eu ACTFEL devices have very little charge transfer and emit very dim, orange-red electroluminescence with an emission peak of about 615 nm.
Resource Type
Date Available
Date Copyright
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Academic Affiliation
Non-Academic Affiliation
Subject
Rights Statement
Peer Reviewed
Language
Digitization Specifications
  • File scanned at 300 ppi (Monochrome, 256 Grayscale) using Capture Perfect 3.0 on a Canon DR-9050C in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
Replaces
Additional Information
  • description.provenance : Submitted by Kirsten Clark (kcscannerosu@gmail.com) on 2012-08-21T21:19:25Z No. of bitstreams: 1 YokoyamaTomoe2001.pdf: 3000709 bytes, checksum: 5579eff66a2d056fb4e63455dc08e26c (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2012-08-22T17:22:20Z (GMT) No. of bitstreams: 1 YokoyamaTomoe2001.pdf: 3000709 bytes, checksum: 5579eff66a2d056fb4e63455dc08e26c (MD5)
  • description.provenance : Made available in DSpace on 2012-08-22T17:22:20Z (GMT). No. of bitstreams: 1 YokoyamaTomoe2001.pdf: 3000709 bytes, checksum: 5579eff66a2d056fb4e63455dc08e26c (MD5) Previous issue date: 2000-07-18
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2012-08-22T17:19:57Z (GMT) No. of bitstreams: 1 YokoyamaTomoe2001.pdf: 3000709 bytes, checksum: 5579eff66a2d056fb4e63455dc08e26c (MD5)

Relationships

Parents:

This work has no parents.

In Collection:

Items