Layered mixed-anion compounds: Epitaxial growth, active function exploration, and device application

Hidenori Hiramatsu, Yoichi Kamihara, Hiroshi Yanagi, Kazushige Ueda, Toshio Kamiya, Masahiro Hirano, Hideo Hosono

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Optoelectronic properties and device applications of layered mixed-anion compounds such as oxychalcogenide LaCuOCh (Ch = chalcogen) and oxypnictide LaTMOPn (TM = 3d transition metal, Pn = pnicogen) are reviewed. Several distinctive functions have been found in these materials based on our original material exploration concept. Fabrication of high-quality epitaxial films of LaCuOCh leads to clarifying the excellent electrical and optical properties such as high hole mobility of 8 cm2/(V s) and heavy hole doping at >1021 cm-3 in LaCuOSe, and sharp and tunable-wavelength photoluminescence in the solid-solution systems in LaCuOCh. In addition, a room temperature operation of a light-emitting diode is demonstrated using LaCuOSe as a light-emitting layer. These results suggest that the layered oxychalcogenides have potential for light-emitting layers as well as transparent hole-injection layers in organic/inorganic light-emitting diodes. Furthermore, by extending the material system from the copper-based oxychalcogenides to isostructural compounds, transition metal-based oxypnictides LaTMOP (TM = Fe, Ni), we have found novel superconductors, LaFeOP and LaNiOP.

Original languageEnglish
Pages (from-to)245-253
Number of pages9
JournalJournal of the European Ceramic Society
Volume29
Issue number2
DOIs
Publication statusPublished - 2009 Jan
Externally publishedYes

Fingerprint

Epitaxial growth
Anions
Negative ions
Light emitting diodes
Chalcogens
Transition metal compounds
Hole mobility
Epitaxial films
Optoelectronic devices
Superconducting materials
Transition metals
Copper
Solid solutions
Photoluminescence
Electric properties
Optical properties
Doping (additives)
Fabrication
Wavelength
Temperature

Keywords

  • Electrical properties
  • Epitaxial thin films
  • Optical properties
  • Solid state reaction
  • Superconductivity

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Cite this

Layered mixed-anion compounds : Epitaxial growth, active function exploration, and device application. / Hiramatsu, Hidenori; Kamihara, Yoichi; Yanagi, Hiroshi; Ueda, Kazushige; Kamiya, Toshio; Hirano, Masahiro; Hosono, Hideo.

In: Journal of the European Ceramic Society, Vol. 29, No. 2, 01.2009, p. 245-253.

Research output: Contribution to journalArticle

Hiramatsu, Hidenori ; Kamihara, Yoichi ; Yanagi, Hiroshi ; Ueda, Kazushige ; Kamiya, Toshio ; Hirano, Masahiro ; Hosono, Hideo. / Layered mixed-anion compounds : Epitaxial growth, active function exploration, and device application. In: Journal of the European Ceramic Society. 2009 ; Vol. 29, No. 2. pp. 245-253.
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