Optical recording element with an interfacial layer between the

Abstract

A recordable element includes a substrate, an optical recording layer deposited on the substrate, a light reflecting layer deposited over the recording layer and an interfacial layer having a thickness in a range of 3 to 30 nm and interposed between the recording layer and the reflective layer, the optical recording layer containing Te.sub.a Ge.sub.b C.sub.c H.sub.d O.sub.e where a, b, c, d, and e are the atomic percents such that a+b+c+d+e=100, and wherein 10<a<40, 10<b<60, 5<c<35, 10<d<35, e.gtoreq.0; and the interfacial layer containing Ge.sub.w C.sub.x H.sub.y O.sub.z where w, x, y, and z are atomic percents such that w+x+y+z=100, and wherein 15<w<65, 5<x<35, 15<y<40, z.gtoreq.0. The recording element has its properties changed by heat treatment for a time and temperature selected so as to improve and stabilize its performance.