Patent application number | Description | Published |
20090214896 | PERPENDICULAR RECORDING MAGNETIC MEDIA HAVING A GRANULAR MAGNETIC RECORDING LAYER AND AN AMORPHOUS SOFT UNDERLAYER - A perpendicular magnetic recording medium having a substrate, an amorphous soft underlayer of thickness 30 nm or greater, and a granular magnetic recording layer for perpendicular recording is disclosed. The granular magnetic recording layer includes a non-magnetic region between magnetic grains, wherein the non-magnetic region includes metal nitride or metal carbide and provides exchange decoupling between the magnetic grains. The perpendicular recording medium of this invention reduces DC noise and increases media signal-to-noise ratio; it reduces surface roughness, which in turn reduces the head-to-media spacing and the head-to-amorphous soft underlayer spacing. | 08-27-2009 |
20100043872 | Photovoltaic Device With an Up-Converting Quantum Dot Layer and Absorber - A photovoltaic apparatus includes an absorber including a first quantum dot layer having a first plurality of quantum dots of a first quantum dot material in a first matrix material, and an up-converter layer positioned adjacent to the absorber layer, the up-converter layer including a second quantum dot layer having a second plurality of quantum dots of a second quantum dot material and a second matrix material. | 02-25-2010 |
20100044675 | Photovoltaic Device With an Up-Converting Quantum Dot Layer - A photovoltaic apparatus includes an absorber layer, and an up-converter layer positioned adjacent to the absorber layer, the up-converter layer including a plurality of quantum dots of first material in a matrix of a second material. In one example, the first material has a lower bandgap than the absorber layer, and the second material comprises a semiconductive material or an insulator. | 02-25-2010 |
20100047595 | Thin Film Template For Fabrication of Two-Dimensional Quantum Dot Structures - An apparatus includes a first seedlayer including a hexagonal close-packed alloy with a sigma phase addition, and an active layer including a plurality of quantum dots on the first seedlayer. The apparatus can further include a substrate, an adhesion layer on the substrate, and a wetting layer on the adhesion layer, wherein the first seedlayer is on the wetting layer. | 02-25-2010 |
20100051095 | Hybrid Photovoltaic Cell Using Amorphous Silicon Germanium Absorbers With Wide Bandgap Dopant Layers and an Up-Converter - A photovoltaic apparatus includes an absorber including a p-layer having a bandgap greater than about 2 eV, an n-layer having a bandgap greater than about 2 eV, and an amorphous SiGe intrinsic layer between the p-layer and the n-layer; a first electrode adjacent to a first side of the absorber; a second electrode adjacent to a second side of the absorber; and an up-converter layer positioned adjacent to the second electrode on an opposite side of the second electrode from the absorber, wherein the up-converter layer includes a plurality of quantum dots of a first material in a matrix of a second material. | 03-04-2010 |
20100147380 | Hybrid Photovoltaic Cell Using Amorphous Silicon Germanium Absorbers and Wide Bandgap Dopant Layers - A photovoltaic apparatus includes a p-layer having a bandgap greater than about 2 eV, an n-layer having a bandgap greater than about 2 eV, and an absorber layer between the p-layer and the n-layer, wherein the absorber layer includes SiGe. The ratio of Si to Ge in the absorber layer can be selected to obtain an absorber bandgap between about 1.1 and about 1.4 eV. | 06-17-2010 |
20100215846 | GRANULAR PERPENDICULAR MAGNETIC RECORDING MEDIA WITH DUAL RECORDING LAYER AND METHOD OF FABRICATING SAME - A granular perpendicular magnetic recording medium comprises a non-magnetic substrate and a granular perpendicular magnetic recording layer overlying the substrate, comprising a first granular perpendicular magnetic layer proximal the substrate and having a first saturation magnetization (M | 08-26-2010 |
20120225324 | PERPENDICULAR MEDIA WITH DUAL SOFT MAGNETIC LAYERS - A recording medium having a substrate, a first soft magnetic underlayer, a second soft magnetic underlayer and a perpendicular magnetic recording layer without a spacer layer between the first and second soft magnetic underlayers is disclosed. | 09-06-2012 |
20140178714 | Method and Manufacture Process for Exchange Decoupled First Magnetic Layer - A perpendicular magnetic recording medium having a dual-layer magnetic film is disclosed. The bottom layer is completely exchange decoupled, and the top layer contains a certain amount of exchange coupling optimized for recording performance. Preferably, the bottom magnetic layer contains stable oxide material (for example, TiO | 06-26-2014 |