Nanosys, Inc.

Avago Technologies Ecbu IP (singapore) Pte. Ltd.

Oned Material, Inc.

Agilent Technologies, Inc.

Aptina Imaging Corporation

Shoei Chemical Inc.

Pixart Imaging Incorporated

Micron Technology Incorporated

Other

Avago Technologies General IP (singapore) Pte. Ltd.

Jason T Hartlove

Gary B Gordon

Derek L Knee

Rajeev Badyal

Charles Hotz

Jian Chen

Shihai Kan

Robert E Wilson

Christian Justus Ippen

Veeral Hardev

Jay Yamanaga

Ernest Lee

Wenzhuo Guo

Jay L Goldman

Yimin Zhu

Hans Jurgen Hofler

Guolin Ma

Wenzhou Guo

Ruiqing Ma

Robert S Dubrow

Patricia Johnson

David S Pitou

Jian Feng Chen

Storrs Townsend Hoen

David P Stumbo

Ronald A Barr

Robert C Taber

John Stewart Wenstrand

Vijendra Sahi

Baixin Qian

Chunming Wang

David Olmeijer

Steven Gensler

John Joseph Curley

Farid Matta

Bahram Afshari

Ionel C Stefan

Ilan Jen-La Plante

Minghu Tu

Yeewah Annie Chow

Alexander Tu

Jason Travis Tillman

Ke Gong

Charlie Hotz

Ravindhar K Kaw

ZhongSheng Luo

Robert Edward Wilson

Zhongsheng Luo

Patricia E Johnson

The present invention relates to nanostructured materials (including nanowires) for use in batteries. Exemplary materials include carbon-comprising, Si-based nanostructures, nanostructured materials disposed on carbon-based substrates, and nanostructures comprising nanoscale scaffolds. The present invention also provides methods of preparing battery electrodes, and batteries, using the nanostructured materials.

Nanostructured materials for battery applications

Nanostructured materials for battery

Embodiments of a flexible electroluminescent (FEE) device are described. An FEE device includes a device stack with a quantum dot (QD) film configured to generate a first light having a first peak wavelength and a flexible substrate configured to support the device stack and emit a first portion of the first light. The FEE device further includes an encapsulation layer disposed on the device stack and an outcoupling layer disposed on the flexible substrate. The encapsulation layer can be configured to provide mechanical and environmental protection to the FEE device from moisture or oxygen. The outcoupling layer can be configured to prevent total internal reflection of a second portion of the first light within the flexible substrate and extract the second portion from the flexible substrate. The outcoupling layer can be further configured to eliminate air gaps at an interface between the outcoupling layer and a surface to be illuminated by the extracted second portion in response to the FEE device being substantially conformally placed on the surface.

Flexible electroluminescent devices

This disclosure pertains to the field of nanotechnology. The disclosure provides methods of preparing nanostructures using in situ prepared zinc dioleate and/or a metal halide. The nanostructures have high quantum yield, narrow emission peak width, tunable emission wavelength, and colloidal stability. Also provided are nanostructures prepared using the methods. And, nanostructure films and molded articles comprising the nanostructures are also provided.

Methods to improve the quantum yield of indium phosphide quantum dots

Embodiments of a display device are described. A display device includes a backlight unit having a light source and a liquid crystal display (LCD) module. The LCD module includes a nanostructure-based color conversion (NS-based CC) layer and a light extraction layer. The NS-based CC layer is configured to receive a primary light, from the light source, having a first peak wavelength and to convert a portion of the primary light to emit a first portion of a secondary light having a second peak wavelength. The second peak wavelength is different from the first peak wavelength. The light extraction layer is optically coupled to the NS-based CC layer and is configured to prevent total internal reflection of a second portion of the secondary light. The light extraction layer has patterned features with one or more dimension in nanometer scale.

Nanostructure based display devices with improved light extraction efficiency

Quantum dots and methods of making quantum dots are described. A method begins with forming quantum dots having a core-shell structure with a plurality of ligands on the shell structure. The method includes exchanging the plurality of ligands with a plurality of second ligands. The plurality of second ligands have a weaker binding affinity to the shell structure than the plurality of first ligands. The plurality of second ligands are then exchanged with hydrolyzed alkoxysilane to form a monolayer of hydrolyzed alkoxysilane on a surface of the shell structure. The method includes forming a barrier layer around the shell structure by using the hydrolyzed alkoxysilane as a nucleation center.

Quantum dot encapsulation techniques

Embodiments of a display device are described. The display device includes a backlight unit having a light source, a quantum dot film, and a radiation absorbing element. The quantum dot film is optically coupled to the light source and is configured to process light received from the light source. The radiation absorbing element is optically coupled to the quantum dot film and is configured to tune a spectral emission width of the processed light received from the quantum dot film to achieve over 90% color gamut coverage of a standard RGB color space.

Radiation absorbing element for increasing color gamut of quantum dot based display devices

Embodiments of a display device are described. The display device includes a first sub-pixel with a first quantum dot (QD) film and a first filter element. The QD film receives both UV light and blue light and converts a portion of the received light to emit a secondary light different from the UV and blue light. The filter element is disposed on the quantum dot film and allows the secondary light to pass through the filter element, and the filter element blocks an unconverted portion of the received light from passing through the filter element. The second sub-pixel has a second filter element that allows blue light to pass through the second filter element, and the second filter element blocks the UV light from passing through the second filter element.

Using multiple excitation wavelengths in nanostructure based display devices

Embodiments of a display device are described. A display device includes a backlight unit having a light source and a liquid crystal display (LCD) module. The LCD module includes a phosphor film and a filter element. The phosphor film is configured to receive a primary light, from the light source, having a first peak wavelength and to convert a portion of the primary light to emit a secondary light having a second peak wavelength. The second peak wavelength is different from the first peak wavelength. The filter element is optically coupled to the phosphor film and is configured to allow the secondary light to pass through the filter element and to block an unconverted portion of the primary light from passing through the filter element.

Nanostructure based display devices

Embodiments of a display device including barrier layer coated quantum dots and a method of making the barrier layer coated quantum dots are described. Each of the barrier layer coated quantum dots includes a core-shell structure and a hydrophobic barrier layer disposed on the core-shell structure. The hydrophobic barrier layer is configured to provide a distance between the core-shell structure of one of the quantum dots with the core-shell structures of other quantum dots that are in substantial contact with the one of the quantum dots. The method for making the barrier layer coated quantum dots includes forming reverse micro-micelles using surfactants and incorporating quantum dots into the reverse micro-micelles. The method further includes individually coating the incorporated quantum dots with a barrier layer and isolating the barrier layer coated quantum dots with the surfactants of the reverse micro-micelles disposed on the barrier layer.

Quantum dot based color conversion layer in display devices

A display device includes a backlight unit having a light source and a liquid crystal display (LCD) module. The light source is configured to emit a primary light in a first wavelength region. The LCD module includes a pixel having a first, second, and third sub-pixels. The first sub-pixel includes a first emissive surface configured to emit a first light in a second wavelength region. The second sub-pixel includes a second emissive surface configured to emit a second light in a third wavelength region. The third sub-pixel includes a third emissive surface configured to emit a third light in the first wavelength region. The third luminance is greater than the first luminance and the second luminance. An area of the third emissive surface is smaller than an area of the first emissive surface and an area of the second emissive surface.

Quantum dot based color conversion layer in display device

Growing community of inventors

Saratoga, CA, United States of America

Jason T Hartlove