Abstract:
Methods for making conducting stacks includes forming a doped or alloyed silver layer sandwiched between two layers of transparent conductive oxide such as indium tin oxide (ITO). The doped silver or silver alloy layer can be thin, such as between 1.5 to 20 nm and thus can be transparent. The doped silver or silver alloy can provide improved ductility property, allowing the conductive stack to be bendable. The transparent conductive oxide layers can also be thin, allowing the conductive stack can have improved ductility property.
Abstract:
Optical absorbers and methods are disclosed. The methods comprise depositing a plurality of precursor layers comprising one or more of Cu, Ga, and In on a substrate, and heating the layers in a chalcogenizing atmosphere. The plurality of precursor layers can be one or more sets of layers comprising at least two layers, wherein each layer in each set of layers comprises one or more of Cu, Ga, and In exhibiting a single phase. The layers can be deposited using two or three targets selected from Ag and In containing less than 21% In by weight, Cu and Ga where the Cu and Ga target comprises less than 45% Ga by weight, Cu(In,Ga), wherein the Cu(In,Ga) target has an atomic ratio of Cu to (In+Ga) greater than 2 and an atomic ratio of Ga to (Ga+In) greater than 0.5, elemental In, elemental Cu, and In2Se3 and In2S3.
Abstract:
Disclosed herein are systems, methods, and apparatus for forming adjustable windows may include a substrate and a first conducting oxide layer formed over the substrate. The adjustable windows may further include a spectral tuning layer formed over the first conducting oxide layer and an ion conductor layer formed over the spectral tuning layer. The adjustable windows may also include an ion storage layer formed over the ion conductor layer and a second conducting oxide layer formed over the ion storage layer. In some embodiments, the spectral tuning layer may be configured to change an infrared transmissivity of the adjustable window. Furthermore, the spectral tuning layer may be configured to toggle a solar heat gain ratio coefficient of the adjustable window between two or more solar heat gain ratio coefficients.
Abstract:
Methods for HPC techniques are applied to the processing of site-isolated regions (SIR) on a substrate to form at least a portion of a TFT device used in display applications. The processing may be applied to at least one of gate electrode deposition, gate electrode patterning, gate dielectric deposition, gate dielectric patterning, metal-based semiconductor material (e.g. IGZO) deposition, metal-based semiconductor material (e.g. IGZO) patterning, etch stop deposition, etch stop patterning, source/drain deposition, source/drain patterning, passivation deposition, or passivation patterning. The SIRs may be defined during the deposition process with uniform deposition within each SIR or the SIRs may be defined subsequent to the deposition of layers wherein the layers are deposited with a gradient in one or more properties across the substrate.
Abstract:
The electrical and optical performance of silver LED reflective contacts in III-V devices such as GaN LEDs is limited by silver's tendency to agglomerate during annealing processes and to corrode on contact with silver-reactive materials elsewhere in the device (for example, gallium or aluminum). Agglomeration and reaction are prevented, and crystalline morphology of the silver layer may be optimized, by forming a diffusion-resistant transparent conductive layer between the silver and the source of silver-reacting metal, (2) doping the silver or the diffusion-resistant transparent conductive layer for improved adhesion to adjacent layers, or (3) doping the silver with titanium, which in some embodiments prevents agglomeration and promotes crystallization of the silver in the preferred orientation.
Abstract:
Methods to improve the reflection of light emitting devices are disclosed. A method consistent with the present disclosure includes forming a light generating layer over a site-isolated region of a substrate. Next, forming a first transparent conductive layer over the light generating layer. Forming a low refractive index material over the first transparent conductive layer, and in time, forming a second transparent conductive layer over the low refractive index material. Subsequently, forming a reflective material layer thereon. Accordingly, methods consistent with the present disclosure may form a plurality of light emitting devices in various site-isolated regions on a substrate.
Abstract:
Disclosed herein are systems, methods, and apparatus for forming a low emissivity panel. In various embodiments, a partially fabricated panel may be provided. The partially fabricated panel may include a substrate, a reflective layer formed over the substrate, and a top dielectric layer formed over the reflective layer such that the reflective layer is formed between the substrate and the top dielectric layer. The top dielectric layer may include tin having an oxidation state of +4. An interface layer may be formed over the top dielectric layer. A top diffusion layer may be formed over the interface layer. The top diffusion layer may be formed in a nitrogen plasma environment. The interface layer may substantially prevent nitrogen from the nitrogen plasma environment from reaching the top dielectric layer and changing the oxidation state of tin included in the top dielectric layer.
Abstract:
Methods for HPC techniques are applied to the processing of site-isolated regions (SIR) on a substrate to form at least a portion of a TFT device used in display applications. The processing may be applied to at least one of gate electrode deposition, gate electrode patterning, gate dielectric deposition, gate dielectric patterning, metal-based semiconductor material (e.g. IGZO) deposition, metal-based semiconductor material (e.g. IGZO) patterning, etch stop deposition, etch stop patterning, source/drain deposition, source/drain patterning, passivation deposition, or passivation patterning. The SIRs may be defined during the deposition process with uniform deposition within each SIR or the SIRs may be defined subsequent to the deposition of layers wherein the layers are deposited with a gradient in one or more properties across the substrate.
Abstract:
Provided is High Productivity Combinatorial (HPC) testing methodology of semiconductor substrates, each including multiple site isolated regions. The site isolated regions are used for testing different compositions and/or structures of barrier layers disposed over silver reflectors. The tested barrier layers may include all or at least two of nickel, chromium, titanium, and aluminum. In some embodiments, the barrier layers include oxygen. This combination allows using relative thin barrier layers (e.g., 5-30 Angstroms thick) that have high transparency yet provide sufficient protection to the silver reflector. The amount of nickel in a barrier layer may be 5-10% by weight, chromium—25-30%, titanium and aluminum—30%-35% each. The barrier layer may be co-sputtered in a reactive or inert-environment using one or more targets that include all four metals. An article may include multiple silver reflectors, each having its own barrier layer.
Abstract:
Embodiments provided herein describe low-e panels and methods for forming low-e panels. A transparent substrate is provided. A reflective layer is formed above the transparent substrate. A barrier layer is formed above the reflective layer. A nitride-containing layer is formed above the barrier layer. The nitride-containing layer has a thickness that is 1 nm or less. A over-coating layer is formed above the nitride-containing layer. The over-coating layer includes a different material than that of the nitride-containing layer.