Abstract:
A transparent dielectric composition comprising tin, oxygen and one of aluminum or magnesium with preferably higher than 15% by weight of aluminum or magnesium offers improved thermal stability over tin oxide with respect to appearance and optical properties under high temperature processes. For example, upon a heat treatment at temperatures higher than 500 C, changes in color and index of refraction of the present transparent dielectric composition are noticeably less than those of tin oxide films of comparable thickness. The transparent dielectric composition can be used in high transmittance, low emissivity coated panels, providing thermal stability so that there are no significant changes in the coating optical and structural properties, such as visible transmission, IR reflectance, microscopic morphological properties, color appearance, and haze characteristics, of the as-coated and heated treated products.
Abstract:
A method for making low emissivity panels, including control the composition of a barrier layer formed on a thin conductive silver layer. The barrier structure can include a ternary alloy of titanium, nickel and niobium, which showed improvements in overall performance than those from binary barrier results. The percentage of titanium can be between 5 and 15 wt %. The percentage of nickel can be between 30 and 50 wt %. The percentage of niobium can be between 40 and 60 wt %.
Abstract:
Low emissivity panels can include a separation layer of Zn2SnOx between multiple infrared reflective stacks. The low emissivity panels can also include NiNbTiOx as barrier layer. The low emissivity panels have high light to solar gain, color neutral, together with similar observable color before and after a heat treatment process.
Abstract:
A bi-layer seed layer can exhibit good seed property for an infrared reflective layer, together with improved thermal stability. The bi-layer seed layer can include a thin zinc oxide layer having a desired crystallographic orientation for a silver infrared reflective layer disposed on a bottom layer having a desired thermal stability. The thermal stable layer can include aluminum, magnesium, or bismuth doped tin oxide (AlSnO, MgSnO, or BiSnO), which can have better thermal stability than zinc oxide but poorer lattice matching for serving as a seed layer template for silver (111).
Abstract:
Embodiments provided herein describe methods and systems for evaluating electrochromic material processing conditions. A substrate having a plurality of site-isolated regions defined thereon is provided. A first electrochromic material, or a first electrochromic device stack, is formed above a first of the plurality of site-isolated regions using a first set of processing conditions. A second electrochromic material, or a second electrochromic device stack, is formed above a second of the plurality of site-isolated regions using a second set of processing conditions. The second set of processing conditions is different than the first set of processing conditions.
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. An over-coating layer is formed above the reflective layer. The over-coating layer includes first, second, and third sub-layers. The second sub-layer is between the first and third sub-layers, and the first and third sub-layers include the same material
Abstract:
Methods are used to develop and evaluate new materials and deposition processes for use as TCO materials in HJCS solar cells. The TCO layers allow improved control over the uniformity of the TCO conductivity and interface properties, and reduce the sensitivity to the texture of the wafer. In Some embodiments, the TCO materials include indium, zinc, tin, and aluminum.
Abstract:
Methods are provided to use data obtained from a single wavelength ellipsometer to determine the refractive index of materials as a function of wavelength for thin conductive films. The methods may be used to calculate the refractive index spectrum as a function of wavelength for thin films of metals, and conductive materials such as conductive metal nitrides or conductive metal oxides.
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:
A method for making low emissivity panels, comprising forming a patterned layer on a transparent substrate. The patterned layers can offer different color schemes or different decorative appearance styles for the coated panels, or can offer gradable thermal efficiency through the patterned layers.