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Title
Japanese: 
English:Mechanoluminescence of ZnS:Mn phosphors and its correlation to impact energy and contact geometry 
Author
Japanese: ﾘｰﾗｰｼｬｳｽｨﾘﾁｬｲ, 村石信二, 三宮工, 史蹟, 中村吉男.  
English: Sirichai Leelachao, Shinji Muraishi, Takumi Sannomiya, Ji Shi, YOSHIO NAKAMURA.  
Language English 
Journal/Book name
Japanese:Optics letters 
English: 
Volume, Number, Page Vol. 40        pp. 4468-4471
Published date Aug. 25, 2015 
Publisher
Japanese: 
English: 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
DOI https://doi.org/10.1364/OL.40.004468
Abstract The influence of the impulsive mechanical energy and the contact geometrical parameters on stress-induced light emission of ZnS-based phosphors dispersed in polymeric matrix is investigated using modified impact test equipment. At a low to moderate energy region, luminescent pulses consist of two distinguishable peaks that can be assigned to a loading and unloading sequence, respectively. Transient characteristics are found to be independent of the external excitation. An increment of peak emission intensity with higher impact energy and smaller tip diameter indicates a significant relationship of mechanoluminescence to the geometry of contact. Intense emission deviating from the linearity and an absence of the secondary peak are suggested to be the consequence of fractoluminescence.

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