Abstract: 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 SbaXbSncZndSieOfSh wherein X is an element selected from In, Ge, Al, Zn, Mn, Cd, Ga, Ti, Si, Te, Nb, Fe, Co, W, Mo, S, Ni, O, Se, Tl, As, P, Au, Pd, Pt, Hf,or V and a>0, b>0, c>0, d>0, e>0, f>0, h>0, and a +b+c+d+e+f+h=100.

Abstract: A method for transferring organic material from a flexible donor element onto a substrate to form a layer of organic material in making one or more OLED devices, includes providing the flexible donor element and the substrate in a spaced relationship within a chamber under atmospheric pressure defined by a transfer station so that the flexible donor element partitions the chamber into first and second cavities; varying the pressure differential between the first and second cavities to cause the flexible donor element to move into a contact relationship with the substrate; providing a transparent window which defines the top surface of the second cavity; and providing radiation energy through the transparent window onto the flexible donor element in contact with the substrate to cause the flexible donor element to absorb heat and transfer organic material onto the substrate.

Abstract: 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 SbaXbSncZndSieOfSh wherein X is an element selected from In, Ge, Al, Zn, Mn, Cd, Ga, Ti, Si, Te, Nb, Fe, Co, W, Mo, S, Ni, O, Se, Tl, As, P, Au, Pd, Pt, Hf, or V and a>0, b>0, c>0, d>0, e>0, f>0, h>0, and a+b+c+d+e+f+h=100.

Abstract: 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 SbaInbSncZndSieOfSh wherein a>0, b>0, c>0, d>0, e>0, f>0, h>0, and a+b+c+d+e+f+h=100

Abstract: A WORM optical recording element includes a substrate; an amorphous phase-change recording layer disposed over the substrate; a dielectric layer disposed adjacent to the amorphous phase-change layer; a reflector layer disposed adjacent to the dielectric layer; and wherein the material and the thickness of the layers are selected such that recording can be performed on the optical recording element by using a focused laser beam to form crystalline marks in the phase-change layer using laser pulses with less than 40 nS in duration, the reflectivity of the amorphous phase as measured by a collimated beam is higher than 28% and the contrast of the read-back signal is higher than 0.6, and the second and subsequent writing over previous recording results in at least a 50% increase in read out jitter.

Abstract: A WORM optical recording element includes a substrate; an amorphous phase-change recording layer disposed over the substrate; a dielectric layer disposed adjacent to the amorphous phase-change layer; a reflector layer disposed adjacent to the dielectric layer; and wherein the material and the thickness of the layers are selected such that recording can be performed on the optical recording element by using a focused laser beam to form crystalline marks in the phase-change layer using laser pulses with less than 40 nS in duration, the reflectivity of the amorphous phase as measured by a collimated beam is higher than 28% and the contrast of the read-back signal is higher than 0.6, and the second and subsequent writing over previous recording results in at least a 50% increase in read out jitter.

Abstract: A rewriteable phase-change optical recording element includes a substrate; and a recording layer over the substrate having at least two sub-layers of different chemical compositions, the compositions and thickness of the sub-layers being selected so that when subject to laser light during a writing process the compositions mixed together to form a high reflectivity mixed crystalline region without using any prior initialization or mixing processes.

Abstract: A recording medium includes a transparent substrate; a crystalline phase-change layer provided over the transparent substrate; a dielectric layer provided over the phase-change layer; a metallic reflector layer provided over the dielectric layer; and the crystalline phase-change layer having a thickness and phase-change material selected so that data can be recorded in it on a first write, but on second or subsequent writes the written data results in at least a 50% increase in data jitter.

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.

Abstract: A recordable element including a substrate and having over its surface, in order, an optical recording layer and a light reflecting layer, the improvement includes an 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 atomic percents such that a+b+c+d+e=100, and wherein 10<a<40, 10<b<60, 5<c<35, 10<d<5, e.gtoreq.0; an the optical recording layer having one or more sublayers which can be of different compositions; and the thickness t of the optical recording layer is 0.7 Tmin<t<1.3 Tmin.

Abstract: A method of forming a recordable element including a substrate and having on its surface, in order, an optical recording layer and a light reflecting layer, the optical recording layer having at least two sublayers of different compositions is disclosed. The method includes forming in a sputtering chamber on the substrate surface a first sublayer of a predetermined thickness by sputtering at least two metal elements having Ge and Te, or alloys thereof, in a flowing environment of a hydrocarbon gas and an inert gas wherein the flow rate of the hydrocarbon gas is selected relative to the flow rate of the inert gas to provide the first sublayer with an elemental R.sub.

Abstract: A recordable element with improved performance, and a method of making such element is disclosed. The recordable element includes a substrate and an optical recording layer deposited on the substrate, wherein the optical recording layer is formed of Te.sub.a Ge.sub.b C.sub.c H.sub.d O.sub.e where a, b, c, d, and e are atomic percents such that a+b+c+d+e=100, and wherein 10<a<40, 10<b<60, 5<c<35, and 15<(c+d)<65 and e.gtoreq.0; a metal layer over the optical recording layer; and the recording element having its properties changed by heat treatment for a time and temperature selected so as to significantly improve jitter, window margin, reflectivity, and recording sensitivity performance.

Abstract: A method of forming a recordable element including a substrate and having on its surface, in order, an optical recording layer and a light reflecting layer, the optical recording layer having at least two sublayers of different compositions is disclosed. The method includes forming in a sputtering chamber on the substrate surface a first sublayer of a predetermined thickness by sputtering at least two elements having Ge and Te, or alloys thereof, in a flowing environment of a hydrocarbon gas and an inert gas wherein the flow rate of the hydrocarbon gas is selected relative to the flow rate of the inert gas to provide the first sublayer with an elemental R.sub.

Abstract: There is disclosed a recordable optical element that has a substrate and on the surface of the substrate, a recording layer and a light reflecting layer. The recording layer has a material with the formula Te.sub.a Ge.sub.b C.sub.c H.sub.d O.sub.e wherein a, b, c, d, and e are atomic percents and (c+d)>40, d>10, a>5, b>5, and e.gtoreq.0 such that a+b+c+d+e=100; and the reflecting layer and the recording layer being selected such that the element R.sub.max or R.sub.min (element reflectivity) is about or greater than 70% at about 780 nm.

Abstract: Optical recording films made from alloys of antimony-tin and a third element exhibit improved properties when formed in an atmosphere containing oxygen. The amount of oxygen in the sputtering environment is controlled. Improvements include higher amorphous to crystalline transition temperature, improved carrier to noise ratio (CNR) and greater stability of the recorded film.

Abstract: An optical recording element comprising a thin film optical recording layer of an alloy is disclosed. The alloy is represented by the formula:Sb.sub.x Cd.sub.1-xwherein x is between about 0.68 and 0.83, and the formula:Sb.sub.x Cd.sub.y Sn.sub.z,wherein Sb.sub.x Cd.sub.y Sn.sub.z is within the polygon enclosed by Sb.sub.83 Cd.sub.17 -Sb.sub.46 Cd.sub.24 Sn.sub.30 -Sb.sub.42 Cd.sub.46 Sn.sub.12 -Sb.sub.68 Cd.sub.32 in a ternary Sb-Cd-Sn composition diagram.

Abstract: An optical recording element comprising a thin film of an alloy is disclosed. The alloy is represented by the formulaTe.sub.a (Sb.sub.x Sn.sub.y In.sub.z).sub.1-awherein a is between about 0.38 and 0.62; x is between about 0.05 and 0.65; y divided by z is between about 0.5 and 5; with the proviso that the product of (y+z) and (1-a) is greater than about 0.20. The alloys have improved data stability while retaining excellent write-erase characteristics.

Abstract: Antimony-tin alloys including a third element are useful for phase change optical recording. Some preferred alloys have a higher amorphous to crystalline transition temperature and thus, amorphous areas are stable for longer periods. Other preferred alloys exhibit improved CNR or lower noise or other improved performance characteristics.

Abstract: An optical recording element comprising a thin film optical recording layer of an alloy is disclosed. The alloy is represented by the formula Sb.sub.x Te.sub.1-x, wherein x is between about 0.58 and 0.75. The alloys have short erasure times (amorphous to crystalline transition) and excellent environmental stability.

Abstract: Antimony-tin alloys including a third element are useful for phase change optical recording. Some preferred alloys have a higher amorphous to crystalline transition temperature and thus, amorphous areas are stable for longer periods. Other preferred alloys exhibit improved CNR or lower noise or other improved performance characteristics.