Persistent Luminescence Hole-Type Materials by Design : Transition-Metal-Doped Carbon Allotrope and Carbides

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

15 Scopus Citations
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Author(s)

  • Bingyan Qu
  • Bo Zhang
  • Lei Wang
  • Rulong Zhou
  • Liang Li

Detail(s)

Original languageEnglish
Pages (from-to)5439-5444
Journal / PublicationACS Applied Materials and Interfaces
Volume8
Issue number8
Publication statusPublished - 2 Mar 2016
Externally publishedYes

Abstract

Electron traps play a crucial role in a wide variety of compounds of persistent luminescence (PL) materials. However, little attention has been placed on the hole-trap-type PL materials. In this study, a novel hole-dominated persistent luminescence (PL) mechanism is predicted. The mechanism is validated in the night pearl diamond (NPD) composed of lonsdaleite with ultralong persistent luminescence (PL) (more than 72 h). The computed band structures suggest that the Fe ion dopant in lonsdaleite is responsible for the luminescence of NPD due to the desired defect levels within the band gap for electronic transition. Other possible impurity defects in lonsdaleite, such as K, Ca, Mg, Zn, or Tl dopants, or C vacancy can also serve as the hole-trap centers to enhance the PL. Among other 3d transition-metal-ion dopants considered, Cr and Mn ions are predicted to give rise to PL property. The predicted PL mechanism via transition-metal doping of lonsdaleite offers an exciting opportunity for engineering new PL materials by design.

Research Area(s)

  • defects, diamond, first-principle calculation, hexagonal diamond, long afterglow, lonsdaleite, luminescence, transition metals

Bibliographic Note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Citation Format(s)

Persistent Luminescence Hole-Type Materials by Design: Transition-Metal-Doped Carbon Allotrope and Carbides. / Qu, Bingyan; Zhang, Bo; Wang, Lei et al.
In: ACS Applied Materials and Interfaces, Vol. 8, No. 8, 02.03.2016, p. 5439-5444.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review