Hydrothermal crystal growth, piezoelectricity, and triboluminescence of KNaNbOF5

Kelvin B. Chang, Bryce W. Edwards, Laszlo Frazer, Erik J. Lenferink, Teodor K. Stanev, Nathaniel P. Stern, Juan C. Nino, Kenneth R Poeppelmeier

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Single crystals of the noncentrosymmetric KNaNbOF5 polymorph were grown for piezoelectric and triboluminescent measurements. Piezoelectric measurements yielded a d33 value of ±6.3 pCN-1 and an effective electromechanical coupling coefficient of up to 0.1565 in the frequency range 1960-2080 kHz. Crystals of KNaNbOF5 were found to exhibit a strong triboluminscence effect visible to the naked eye as blue sparks when crystals are crushed. This triboluminescence effect is uncommon in that it is likely independent from both the piezoelectric effect and atmospheric electrical discharge. Instead, triboluminescence may originate from crystal defects or be related to an electroluminescence effect.

Original languageEnglish
Pages (from-to)78-82
Number of pages5
JournalJournal of Solid State Chemistry
Volume236
DOIs
Publication statusPublished - Apr 1 2016

Fingerprint

hydrothermal crystal growth
Triboluminescence
triboluminescence
piezoelectricity
Piezoelectricity
Crystallization
Crystal growth
Crystals
Electromechanical coupling
Crystal defects
Electroluminescence
Polymorphism
Electric sparks
Single crystals
coupling coefficients
sparks
crystal defects
electroluminescence
crystals
frequency ranges

Keywords

  • Crystal growth
  • Oxide-fluoride
  • Piezoelectricity
  • Triboluminescence

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Ceramics and Composites
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry

Cite this

Hydrothermal crystal growth, piezoelectricity, and triboluminescence of KNaNbOF5 . / Chang, Kelvin B.; Edwards, Bryce W.; Frazer, Laszlo; Lenferink, Erik J.; Stanev, Teodor K.; Stern, Nathaniel P.; Nino, Juan C.; Poeppelmeier, Kenneth R.

In: Journal of Solid State Chemistry, Vol. 236, 01.04.2016, p. 78-82.

Research output: Contribution to journalArticle

Chang, Kelvin B. ; Edwards, Bryce W. ; Frazer, Laszlo ; Lenferink, Erik J. ; Stanev, Teodor K. ; Stern, Nathaniel P. ; Nino, Juan C. ; Poeppelmeier, Kenneth R. / Hydrothermal crystal growth, piezoelectricity, and triboluminescence of KNaNbOF5 In: Journal of Solid State Chemistry. 2016 ; Vol. 236. pp. 78-82.
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