Abstract
In this paper, we report on the elastico-mechanoluminescence (EML) from Sr0.97Al2O4:Eu0.01, Dy0.02 phosphor composite film. The film is prepared on polycarbonate substrate by mixing of Sr0.97Al2O4:Eu0.01, Dy0.02 phosphor with optical resin. The EML induced by impulsive excitation using a steel ball is measured. The ML intensity increases linearly with square of impact velocity of the steel ball. This study is useful to get ML information when a projectile with small contact area, such as steel ball makes an impact on the ML sensitive composite film.
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