Mechanoluminescence of Persistent Luminescent SrAl2O4: (Eu2+, Dy3+) Material Prepared by Electron Beam Reduction

doi:10.15541/jim20140198

Abstract

Abstract:

Long persistent luminescent SrAl₂O₄: (Eu²⁺, Dy³⁺) was prepared by electron beam reduction. The as- prepared material was mechanically ball-milled into fine powder, and the powder was mixed with wear resistant epoxy resin. Then, the epoxy resin mixed persistent luminescent was coated on quartz glass plate by screen printing with thickness of about 1000 nm. The mechanoluminescent properties of the as-persistent luminescence film was characterized by falling ball impact technique with a homemade device for measuring mechanoluminescence intensity based on a single avalanche diode and a pico-amper meter. It is found that electron beam reduced SrAl₂O₄: (Eu²⁺, Dy³⁺) shows strong mechanoluminescence with high signal/background ratio of 1.25 and high signal/noise ratio. Further study found that intensity of the mechanoluminescence produced was proportional to exponential of the initial height of the ball (i.e., the final kinetic energy of the ball before impact) before falling down, and a decay curve was similar to that of persistent photoluminescence. These results indicate that mechanoluminescence is caused by impact energy of the ball which promotes electrons into traps, and then release via normal long persistent luminescent.

Key words: persistent luminescence, mechanoluminescence, electron beam reduction

CLC Number:

TQ174

SHEN Dong-Dong, JI Zhen-Guo. Mechanoluminescence of Persistent Luminescent SrAl₂O₄: (Eu²⁺, Dy³⁺) Material Prepared by Electron Beam Reduction[J]. Journal of Inorganic Materials, 2015, 30(1): 93-96.

Figures/Tables 6

Fig. 1 Schematic diagram of the measurement apparatus for mechanoluminescence. 1. Stainless steel ball; 2. SrAl2O4: (Eu2+, Dy3+) film; 3. Quartz glass; 4. Avalanche photo-diode; 5. Connecting wire; 6. Pico-ampere meter

Fig. 2 SEM topography of SrAl2O4: (Eu2+, Dy3+) phosphor reduced by e-beam

Fig. 3 Mechanoluminescence caused by ball-falling impacts from different heights

Fig. 4 Comparison between mechanoluminescence and persistent luminescence. Ball-falling impact from 50 cm height

Fig. 5 Decay curve of the mechanoluminescence for the ball falling from 50 cm height

Fig. 6 Mechannoluminescence intensity versus initial falling height

References 13

[1]	JEONG S M, SONG S K, LEE S K, et al.Color manipulation of mechanoluminescence from stress-activated composite films.Adv. Mater., 2013, 25: 6194-6200.
[2]	TIMILSINA S, LEE K H, JANG I Y, et al.Mechanoluminescent determination of the mode I stress intensity factor in SrAl2O4: Eu2+, Dy3+.Acta Materialia, 2013, 61: 7197-7206
[3]	CHANDRA V K, CHANDRA B P, JHA P.Strong luminescence induced by elastic deformation of piezoelectric crystals. Appl. Phy. Lett., 2013, 102(24): 241105-1-4.
[4]	TERASAKI N, LI C S, ZHANG L, et al.Active Crack Indicator with Mechanoluminescent Sensing Technique: Detection of Crack Propagation on Building. Proceedings of the 2012 IEEE Sensors Applications Symposium, Brescia, Italy, 7-9 Feb. 2012. DOI: 10.1109/SAS.2012.6166317.
[5]	SOMEYA S, ISHII K, SAEKI M, et al.Lifetime-based measurement of stress using mechanoluminescence of SrAl2O4: Eu2+.Optics Letters, 2013, 38(7): 1095-1097.
[6]	CHANDRA V K, CHANDRA B P.Fracto-mechanoluminescence and mechanics of fracture of solids.Journal of Luminescence, 2012, 132: 2012-2022.
[7]	FONTENOT R S, HOLLERMAN W A, BHAT K N, et al.Synthesis and characterization of highly triboluminescent doped europium tetrakis compounds.Journal of Luminescence, 2012, 134: 477-482.
[8]	LI C S, XU C N, ZHANG L, et al.Dynamic visualization of stress distribution on metal by mechanoluminescence images.Journal of Visualization, 2008, 11(4): 329-335.
[9]	WANG W X, IMAI Y, XU C N, et al. A new smart damage sensor using mechanoluminescence material. Material Materials Forum, 2011, 675-677: 1081-1084.
[10]	JHA P, CHANDRA B P.Impulsive excitation of mechanoluminescence in SrAl2O4: Eu, Dy phosphors prepared by solid state reaction technique in reduction atmosphere,Journal of Luminescence, 2013, 143: 280-287.
[11]	XU C N, WATANABE T, AKIYAMA M, et al.Artificial skin to sense mechanical stress by visible light emission.Appl. Phys. Lett., 1999, 74(9): 1236-1238.
[12]	JI Z G, TIAN S, CHEN W K, et al.Enhanced long lasting persistent luminescent SrAl2O4: Eu, Dy ceramics prepared by electron beam bombardment.Radiation Measurements, 2013, 59: 210-213.
[13]	DING Y, JI Z.Introduction to the mechanoluminescence of long persistent luminescent materials.Journal of Materials Science and Engineering, 2014, 32(1): 154.

Mechanoluminescence of Persistent Luminescent SrAl₂O₄: (Eu²⁺, Dy³⁺) Material Prepared by Electron Beam Reduction

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