Nanophosphors-converted quantum photonic imagers and methods for making the same

    公开(公告)号:US10134802B2

    公开(公告)日:2018-11-20

    申请号:US15592629

    申请日:2017-05-11

    Abstract: An emissive Solid State Imager (SSI) comprised of a spatial array of digitally addressable multicolor micro pixels. Each pixel is a micro optical cavity comprising multiple photonic layers of blue-violet semiconductor light emitting diode. One of the photonic layers is used to generate light at the blue primary of the SSI. Two of the photonic layers are used to generate violet-blue excitation light which is converted with associated nanophosphors layer into the green and the red primaries of the SSI. The light generated is emitted perpendicular to the plane of the imager device via a plurality of vertical optical waveguides that extract and collimate the light generated. Each pixel diode is individually addressable to enable the pixel to simultaneously emit any combination of the colors associated with its multicolor nanophosphors converted semiconductor light emitting diode at any required on/off duty cycle for each color.

    Backflow reactor liner for protection of growth surfaces and for balancing flow in the growth liner
    19.
    发明授权
    Backflow reactor liner for protection of growth surfaces and for balancing flow in the growth liner 有权
    回流反应器衬套,用于保护生长表面并平衡生长衬里中的流动

    公开(公告)号:US09577143B1

    公开(公告)日:2017-02-21

    申请号:US13917408

    申请日:2013-06-13

    Abstract: A backflow liner in an epitaxial growth system is provided in order to control gas flow and protect the surface of substrates throughout an epitaxial growth cycle. The backflow liner provides critical protection during the warming time prior to substrate pre-treatment, while the growth environment reaches steady state condition between the pre-treatment and the growth process, during pauses between the layer depositions in case of multilayer structure growth, and during the cooling process. The direction of the gas flow through the backflow liner is counter to the deposition gas flows directed from the source end of the growth system. The backflow liner is therefore designed to shape the flow of gases to prevent formation of the vortex-type streams in the growth system that may negatively affect the growth process.

    Abstract translation: 提供外延生长系统中的回流衬垫以便在整个外延生长循环中控制气体流动并保护衬底的表面。 回流衬垫在衬底预处理之前的加热时间期间提供关键保护,而在预处理和生长过程之间的生长环境达到稳态条件下,在多层结构生长的情况下在层间沉积期间和在 冷却过程。 通过回流衬套的气体流动的方向与从生长系统的源端引导的沉积气体流相反。 因此,回流衬套被设计成塑造气体的流动,以防止在生长系统中形成可能对生长过程产生负面影响的涡流型流。

    Multi-Color Light Emitting Structures with Fixed or Variable Emission Color
    20.
    发明申请
    Multi-Color Light Emitting Structures with Fixed or Variable Emission Color 审中-公开
    具有固定或可变发光颜色的多色发光结构

    公开(公告)号:US20160359299A1

    公开(公告)日:2016-12-08

    申请号:US15173500

    申请日:2016-06-03

    Abstract: Disclosed herein are multi-layered optically active regions for semiconductor light-emitting devices (LEDs) that incorporate intermediate carrier blocking layers, the intermediate carrier blocking layers having design parameters for compositions and doping levels selected to provide efficient control over the carrier injection distribution across the active regions to achieve desired device injection characteristics. Examples of embodiments discussed herein include, among others: a multiple-quantum-well variable-color LED operating in visible optical range with full coverage of RGB gamut, a multiple-quantum-well variable-color LED operating in visible optical range with an extended color gamut beyond standard RGB gamut, a multiple-quantum-well light-white emitting LED with variable color temperature, and a multiple-quantum-well LED with uniformly populated active layers.

    Abstract translation: 本文公开了用于掺入中间载体阻挡层的半导体发光器件(LED)的多层光学活性区域,所述中间载体阻挡层具有用于组合物和掺杂水平的设计参数,以提供对横跨载流子阻挡层的载流子注入分布的有效控制 活性区域以实现期望的器件注入特性。 本文中讨论的实施例的示例包括:在可见光范围内操作的全部覆盖RGB色域的多量子阱可变颜色LED,在可见光范围内工作的多量子阱可变颜色LED,具有扩展 超出标准RGB色域的色域,具有可变色温的多量子阱发光白光LED,以及具有均匀填充的有源层的多量子阱LED。

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