Abstract: Some embodiments relate to an integrated circuit (IC) device including a substrate having first photodetector groups respectively associated with a plurality of color pixels and second photodetector groups respectively associated with a plurality of phase detection pixels. Each of the first and second photodetector groups includes one or more photodetectors. The device further includes a grid structure over the substrate, color filters over the substrate, and a crosstalk reduction structure. The grid structure includes light shields, each configured to redirect light away from a corresponding one of the second photodetector groups. Each color filter vertically spans the grid structure at a corresponding one of the first photodetector groups. The crosstalk reduction structure is level with the color filters and limits an amount of the light redirected by the light shield of each of the phase detection pixels to the first photodetector group of a neighboring one of the color pixels.

Abstract: A plurality of holes in a top surface of a silicon medium form a plurality of sub-meta lenses to result in multiple focal points rather than a single point (resulting from using a single meta lens). As a result, optical paths for incoming light are reduced as compared with a single optical path associated with a single meta lens, which in turn reduces angular response of incident photons. Thus, a pixel sensor including the plurality of sub-meta lenses experiences improved light focus and greater signal-to-noise ratio. Additionally, dimensions of the pixel sensor are reduced (particularly a height of the pixel sensor), which allows for greater miniaturization of an image sensor that includes the pixel sensor.

Abstract: An image sensing device includes a germanium sensor within a semiconductor body and a metalens formed in the back side of the semiconductor body. The metalens is structured to focus infrared light on the germanium sensor and may have a lower profile than an equivalent microlens. Optionally, the metalens is combined with a microlens to achieve a desired focal length. The metalens, or the metalens in combination with a microlens, overcomes a manufacturing process limitation on the focal length of the microlens, which in turn eliminates the need for, or reduces the thickness of, a spacer between the microlens and the germanium sensor. Eliminating the spacer or reducing its thickness improves the angular response of the image sensing device.

Abstract: Disclosed is a tungsten-doped lithium manganese iron phosphate-based particulate for a cathode of a lithium-ion battery. The particulates include a composition represented by a formula of LixMn0.998-y-zFeyMzW0.002PaO4a±p/C, wherein x, y, z, a, p, and M are as defined herein. Also disclosed is a powdery material including the particulates, and a method for preparing the powdery material.

Abstract: Disclosed is a doped lithium manganese iron phosphate-based particulate for a cathode of a lithium-ion battery. The particulate includes a composition represented by a formula of Mm-LixMn1-y-zFeyM?z(PO4)n/C, wherein M, M?, x, y, z, m, and n are as defined herein. Also disclosed is a powdery material including the particulate, and a method for preparing the powdery material.

Abstract: Disclosed is a tungsten-doped lithium manganese iron phosphate-based particulate for a cathode of a lithium-ion battery. The particulates include a composition represented by a formula of LixMn0.998?y?zFeyMzW0.002PaO4a±p/C, wherein x, y, z, a, p, and M are as defined herein. Also disclosed is a powdery material including the particulates, and a method for preparing the powdery material.

Abstract: Disclosed is a tungsten-doped lithium manganese iron phosphate-based particulate for a cathode of a lithium-ion battery. The particulates include a composition represented by a formula LixMn1-y-z-fFeyMzWfPaO4a±pC, wherein x, y, z, f, a, p, and M are as defined herein. Also disclosed is a powdery material including the particulates, and a method for preparing the powdery material.

Abstract: Disclosed is a doped lithium manganese iron phosphate-based particulate for a cathode of a lithium-ion battery. The particulate includes a composition represented by a formula of Mm-LixMn1-y-zFeyM?z(PO4)n/C, wherein M, M?, x, y, z, m, and n are as defined herein. Also disclosed is a powdery material including the particulate, and a method for preparing the powdery material.

Abstract: Disclosed is a tungsten-doped lithium manganese iron phosphate-based particulate for a cathode of a lithium-ion battery. The particulates include a composition represented by a formula LixMn1-y-z-fFeyMzWfPaO4a±pC, wherein x, y, z, f, a, p, and M are as defined herein. Also disclosed is a powdery material including the particulates, and a method for preparing the powdery material.

Abstract: A lithium manganese iron phosphate-based particulate for a cathode of a lithium battery. The lithium manganese iron phosphate-based particulate includes a core portion and a shell portion. The core portion includes a plurality of first lithium manganese iron phosphate-based nanoparticles which are bound together and which have a first mean particle size. The shell portion encloses the core portion and includes a plurality of second lithium manganese iron phosphate-based nanoparticles which are bound together and which have a second mean particle size larger than the first mean particle size of the first lithium manganese iron phosphate-based nanoparticles of the core portion.