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

doi:10.1016/j.jssc.2015.07.011

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

Northwestern University

Research output: Contribution to journal › Article › peer-review

8 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 language	English
Pages (from-to)	78-82
Number of pages	5
Journal	Journal of Solid State Chemistry
Volume	236
DOIs	https://doi.org/10.1016/j.jssc.2015.07.011
Publication status	Published - Apr 1 2016

Keywords

Crystal growth
Oxide-fluoride
Piezoelectricity
Triboluminescence

ASJC Scopus subject areas

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

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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 journal › Article › peer-review

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title = "Hydrothermal crystal growth, piezoelectricity, and triboluminescence of KNaNbOF5",

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.",

keywords = "Crystal growth, Oxide-fluoride, Piezoelectricity, Triboluminescence",

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

note = "Funding Information: The authors gratefully acknowledge support from the National Science Foundation ( DMR-1307698 ). This work made use of the J. B. Cohen X-ray Diffraction Facility and the Magent, Low Temperature, and Optical Facility supported by the MRSEC program of the National Science Foundation ( DMR-1121262) at the Materials Research Center of Northwestern University . JCN and BE would like to acknowledge support by the National Science Foundation ( DMR-120793 ). L.F. acknowledges NSF IGERT DGE-0801685 and the Institute for Sustainability and Energy at Northwestern (ISEN) . E.J.L. was supported by the National Science Foundation MRSEC ( DMR-1121262 ) and T.K.S. was in part supported by the U.S. Department of Energy, BES ( DE-SC0012130 ). N.P.S. acknowledges support as an Alfred P. Sloan Research Fellow . ",

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AU - Nino, Juan C.

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N2 - 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.

AB - 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.

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