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Title
Japanese: 
English:Correlation of triboluminescence and contact stresses in ZnS:Mn/polymeric matrix composite 
Author
Japanese: リーラチャオ シリチャイ, 村石信二, 三宮工, 史蹟, 中村吉男.  
English: Sirichai Leerachao, Shinji Muraishi, Takumi Sannomiya, Ji Shi, YOSHIO NAKAMURA.  
Language English 
Journal/Book name
Japanese:Journal ofLuminescence170(2016)24–29 
English:Journal of Luminescence 
Volume, Number, Page     No. 170    pp. 24-29
Published date Oct. 22, 2015 
Publisher
Japanese: 
English:Elsevier 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
DOI https://doi.org/10.1016/j.jlumin.2015.10.009
Abstract A relationship between sliding-induced light emission of ZnS:Mn dispersed inpolymer matrixand sliding stress determined by using contact mechanics is investigated. In addition to normal loads,the magnitude of exerting stress is also controlled by frictional force and mechanical properties of the composite so that its linear proportion to the applied force is an imprudent assumption. Emission spectra suggest that manganese-associated energy levels are not influenced by deformation. Not only is the emission probability increased but also the stiffness of the composite is enhanced by higher volume fraction of the phosphors. In accordance with contactmechanics, the quantitative results show that a total emission intensity increases non-linearly with contacting stress. Based on the observations, an empirical relationship might be expressed in the form of an exponential function of a square of the exerting stress.

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