HIGHLY BRIGHT MECHANOLUMINESCENCE MATERIAL AND PROCESS FOR PRODUCING THE SAME

摘要

A novel highly bright mechanoluminescence material free from decay of luminescence brightness even if repeated stress is applied, comprising a composite semiconductor crystal of the general formula xM<1>A<1.>(1-x)M<2>A<2> (wherein each of M<1> and M<2> independently represents an atom selected from among Zn, Mn, Cd, Cu, Eu, Fe, Co, Ni, Mg and Ca, and each of A<1> and A<2> is an atom independently selected from among chalcogens, provided that M<1>A<1> is different from M<2>A<2>; and x is a positive number less than 1); and a process for producing the same.