Combinatorial fabrication and cathodoluminescence properties of composition spread MHfO 3 :Tm 3+ (M = Ca, Sr and Ba) films

N. Arai, T. W. Kim, H. Kubota, Y. Matsumoto, H. Koinuma

Research output: Contribution to journalConference articlepeer-review

17 Citations (Scopus)

Abstract

A series of MHfO 3 :Tm 3+ (M = Ca, Sr and Ba) films were fabricated on SrTiO 3 (0 0 1) substrate by using combinatorial pulsed laser deposition (PLD) technique. Their crystal structures and luminescence properties were characterized by the concurrent X-ray diffraction (CXRD) and by the cathodoluminescence (CL) using 5 kV electron beam, respectively. By monitoring the reflection high energy electron diffraction (RHEED) intensity oscillation, the growth of MHfO 3 :Tm 3+ films were optimized to proceed in a epitaxial layer-by-layer fashion. Different from bulk powders, which had the highest CL intensity in SrHfO 3 :Tm 3+ , the composition spread film of Sr 1-x Ca x HfO 3 :Tm 3+ (x = 0-1) exhibited the highest CL intensity at x = 0.7 rather than SrHfO 3 :Tm 3+ (x=0). This anomalous behavior in the films is discussed in view of the stress effect from the substrate.

Original languageEnglish
Pages (from-to)402-405
Number of pages4
JournalApplied Surface Science
Volume197-198
DOIs
Publication statusPublished - 2002
Externally publishedYes
EventCola 2001 - Tsukuba, Japan
Duration: 2001 Oct 12001 Oct 1

Keywords

  • Cathodoluminescence
  • Combinatorial
  • Epitaxial film
  • Phosphor
  • Pulsed laser deposition
  • Tm

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

Fingerprint Dive into the research topics of 'Combinatorial fabrication and cathodoluminescence properties of composition spread MHfO <sub>3</sub> :Tm <sup>3+</sup> (M = Ca, Sr and Ba) films'. Together they form a unique fingerprint.

Cite this