Open AccessDevelopment of ZnS:Mn mechanoluminescent film for impact sensor
Author(s) -
Piyush Jha,
Ayush Khare
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/798/1/012013
Subject(s) - mechanoluminescence , materials science , phosphor , projectile , ball (mathematics) , composite number , composite material , polycarbonate , intensity (physics) , optoelectronics , optics , metallurgy , mathematical analysis , physics , mathematics
This paper reports the elastico-Mechanoluminescence (EML) induced by the impact of a steel ball onto the composite film of ZnS:Mn phosphor. The film is prepared by pasting the mixture of ZnS:Mn phosphor and optical resin on polycarbonate substrate. The EML induced by impulsive excitation using a steel ball has been measured. The ML intensity linearly increases with square of impact velocity of the steel ball. The t m (temperature corresponding to maximum ML intensity) does not change with increasing impact velocity. The ML intensity is observed to recover after every impact of steel ball (height of fall = 20 cm) and does not require any irradiation. The outcome of present investigation is expected to be useful in extracting information about ML when a projectile with small contact area, such as steel ball makes an impact on the ML sensitive composite film.