Abstract:
A waveguide structure includes a substrate, a waveguide film, and an overlay material in contact with the waveguide film. The overlay material nay also contact the substrate or the film may be disposed between the overlay and the substrate. The overlay material has a higher refractive index than the waveguide so that the ratio of the effective refractive indexes is substantially constant for all propagating modes supported by the waveguide.
Abstract:
Coated substrates and methods for coating substrates, for example, a self-assembly method, disclosed herein are useful for, for example, photovoltaic cells.
Abstract:
Light scattering inorganic substrates comprising monolayers and methods for making light scattering inorganic substrates comprising monolayers useful for, for example, photovoltaic cells are described herein. One embodiment is a method for making a light scattering inorganic substrate. The method comprises providing an inorganic substrate comprising at least one surface, forming a monolayer of inorganic particles on the at least one surface to form a coated substrate, heating the coated substrate above the softening point of the inorganic substrate, and pressing the inorganic particles into the at least one surface form the light scattering inorganic substrate.
Abstract:
Methods and apparatus for producing a CMOS image sensor result in: a glass or glass ceramic substrate (102) having first (102A) and second (102B) spaced-apart surfaces; a semiconductor layer (104) disposed on the first surface of the glass or glass ceramic substrate; and a plurality of pixel structures (106) formed in the semiconductor layer, each pixel structure including: at least first, (104A) second (104B) and third semiconductor islands (104C) each island operating as a color sensitive photo-detector and each being of a different thickness such that each is sensitive to a respective range of light wavelengths, and a fourth semiconductor island (104D) on which at least one transistor (108) is disposed, the at least one transistor operating to at least one of buffer, select, and reset one or more of the photo-detectors.
Abstract:
Light scattering substrates, superstrates, and/or layers for photovoltaic cells are described herein. Such structures can be used for volumetric scattering in thin film photovoltaic cells.
Abstract:
Light scattering inorganic substrates comprising monolayers and methods for making light scattering inorganic substrates comprising monolayers useful for, for example, photovoltaic cells are described herein. The method comprises providing an inorganic substrate comprising at least one surface, applying an adhesive to the at least one surface of the inorganic substrate, applying inorganic particles to the adhesive to form a coated substrate, and heating the coated substrate to form the light scattering inorganic substrate.
Abstract:
Textured superstrates for photovoltaic cells, for example, silicon tandem photovoltaic cells with light scattering properties which are sufficient for light trapping independent of wavelength are described herein. Features of a textured surface of a superstrate, via the method(s) used to make the textured superstrate, can be tailored to provide the desired light scattering/trapping properties. The method includes grinding and lapping or grinding, lapping, and etching of a glass superstrate.
Abstract:
A substantially transparent substrate having first and second major surfaces and a plurality of side surfaces; a thin-film semiconductor layer coupled to the first major surface of the substrate and including first and second major surfaces and at least one photo-sensitive p-n junction therein; and a light directing feature operable to cause incident light to propagate through the substrate and into the semiconductor layer in a waveguide mode such that the light reflects a plurality of times between the first and second major surfaces of the semiconductor layer and impinges upon the p-n junction a plurality of times
Abstract:
Disclosed in the application are a synthetic silica glass having low fluence-dependent transmission, particularly at about 193 nm, and a process for making the same. The glass may desirably exhibit a low level of fluorescence at 290 and 390 nm when activated at about 248 nm. The glass may desirably exhibit low level of LIWFD, [SiH*] and/or [ODC].
Abstract:
Light scattering inorganic substrates comprising monolayers and methods for making light scattering inorganic substrates comprising monolayers useful for, for example, photovoltaic cells are described herein. One embodiment is a method for making a light scattering inorganic substrate. The method comprises providing an inorganic substrate comprising at least one surface, forming a monolayer of inorganic particles on the at least one surface to form a coated substrate, heating the coated substrate above the softening point of the inorganic substrate, and pressing the inorganic particles into the at least one surface form the light scattering inorganic substrate.