Phase-change recording element for write once applications

摘要

A WORM optical recording element comprising a substrate and a phase-change recording layer wherein the phase-change recording layer has a composition expressed by SbalnbSflcZndSieOf Sh wherein a 0, b 0, c 0, d 0, e 0, f 0, h0, and a + b + c + d + e + f + h = 100