公开(公告)号：US11572984B2

公开(公告)日：2023-02-07

申请号：US17245896

申请日：2021-04-30

Applicant: King Abdullah University of Science and Technology

Inventor： Boon S. Ooi ,  Bilal Janjua ,  Chao Shen ,  Chao Zhao ,  Tien Khee Ng

IPC: H01L33/06 ,  F21K9/00 ,  H01L33/08 ,  H01L33/32 ,  H04B10/116 ,  H04B10/11 ,  F21Y115/10 ,  F21Y115/30

Abstract: Embodiments of the present disclosure describe a white light illumination system using InGaN-based orange nanowires (NWs) LED, in conjunction with a blue LD for high speed optical wireless communications. By changing the relative intensities of an ultrabroad linewidth orange LED and narrow-linewidth blue LD components, a hybrid LED/LD device achieves correlated color temperature (CCT) ranging from 3000 K to above 6000 K with color rendering index (CRI) values reaching 83.1. Orange-emitting NWs LED are utilized as an active-phosphor, while a blue LD was used for both color mixing and optical wireless communications.

公开(公告)号：US10711952B2

公开(公告)日：2020-07-14

申请号：US16098575

申请日：2017-04-27

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Ibrahim Dursun ,  Chao Shen ,  Osman M. Bakr ,  Tien Khee Ng ,  Boon Ooi

IPC: H01L25/16 ,  F21K9/64 ,  C09K11/66 ,  C09K11/88 ,  H05B33/14 ,  C09K11/02 ,  H04B10/116 ,  F21Y115/30 ,  F21Y115/10 ,  B82Y20/00

Abstract: Embodiments of the present disclosure provide devices and systems including a material including a halide perovskite and/or phosphor to produce and/or communicate using visible light, and the like.

公开(公告)号：US12088118B2

公开(公告)日：2024-09-10

申请号：US17922859

申请日：2021-05-11

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Meiwei Kong ,  Boon S. Ooi ,  Tien Khee Ng

IPC: H02J50/30 ,  H02J7/35 ,  H02J50/00 ,  H04B10/112

CPC classification number: H02J50/30 ,  H02J7/35 ,  H02J50/001 ,  H04B10/112 ,  H02J2300/24

Abstract: An optical wireless communication receiver includes one or more harvesting solar cells configured to transform light into electrical power; one or more communication solar cells configured to transform light into an electrical signal embedding information; a rechargeable battery configured to store the electrical power generated by the one or more harvesting solar cells; a communication module configured to decode the electrical signal generated by the one or more communication solar cells and extract the information; a first switch configured to connect the one or more harvesting solar cells to the rechargeable battery for a harvesting-first state, and to the communication module for a communication-second state; a second switch configured to connect the one or more communication solar cells to the communication module for a communication-first state, and to the rechargeable battery for a harvesting-second state; and a microprocessor configured to control the first and second switches.

公开(公告)号：US11546056B2

公开(公告)日：2023-01-03

申请号：US17431465

申请日：2019-05-07

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Boon Siew Ooi ,  Xiaobin Sun ,  Chao Shen ,  Tien Khee Ng

IPC: H04B10/112 ,  H04B10/118 ,  H04B13/02

Abstract: A method for transmitting information across a water-air interface with a ultraviolet (UV) beam, the method including emitting the UV beam in a first medium, with a first optical wireless communication device; measuring a scintillation index of the UV beam in a second medium, different from the first medium, at a second optical wireless communication device; selecting, based on a value of the scintillation index, a modulation scheme for the UV beam; and modulating the UV beam with the selected modulation scheme. The UV beam has a wavelength in a range of 100 to 400 nm.

公开(公告)号：US11127591B2

公开(公告)日：2021-09-21

申请号：US16090758

申请日：2017-05-09

Applicant: King Abdullah University of Science and Technology ,  KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY

Inventor： Chao Zhao ,  Tien Khee Ng ,  Lain-Jong Li ,  Boon Siew Ooi ,  Ahmed Y. Alyameni ,  Munir M. Eldesouki

IPC: H01L29/10 ,  H01L21/02 ,  H01L29/06 ,  H01L29/267 ,  H01L23/29

Abstract: Methods of direct growth of high quality group III-V and group III-N based materials and semiconductor device structures in the form of nanowires, planar thin film, and nanowires-based devices on metal substrates are presented. The present compound semiconductor all-metal scheme greatly simplifies the fabrication process of high power light emitters overcoming limited thermal and electrical conductivity of nanowires grown on silicon substrates and metal thin film in prior art. In an embodiment the methods include: (i) providing a metal substrate; (ii) forming a transition metal dichalcogenide (TMDC) layer on a surface of the metal substrate; and (iii) growing a semiconductor epilayer on the transition metal dichalcogenide layer using a semiconductor epitaxy growth system. In an embodiment, the semiconductor device structures can be compound semiconductors in contact with a layer of metal dichalcogenide, wherein the layer of metal dichalcogenide is in contact with a metal substrate.

公开(公告)号：US20160088804A1

公开(公告)日：2016-03-31

申请号：US14868422

申请日：2015-09-29

Applicant: King Abdullah University of Science and Technology

Inventor： Boon Ooi ,  Aloysius Wong ,  Tien Khee Ng

IPC: A01G9/20 ,  A01G9/24 ,  A01G1/00 ,  A01G9/14

CPC classification number: A01G22/00 ,  A01G7/045 ,  A01G9/00 ,  Y02P60/146

Abstract: A system and method are provided for indoor agriculture using at least one growth chamber illuminated by laser light. In an example embodiment of the agriculture system, a growth chamber is provided having one or more walls defining an interior portion of the growth chamber. The agriculture system may include a removable tray disposed within the interior portion of the growth chamber. The agriculture system also includes a light source, which may be disposed outside the growth chamber. The one or more walls may include at least one aperture. The light source is configured to illuminate at least a part of the interior portion of the growth chamber. In embodiments in which the light source is disposed outside the growth chamber, the light source is configured to transmit the laser light to the interior portion of the growth chamber via the at least one aperture.

Abstract translation: 使用由激光照射的至少一个生长室来提供用于室内农业的系统和方法。 在农业系统的示例性实施例中，提供具有限定生长室的内部的一个或多个壁的生长室。 农业系统可以包括设置在生长室的内部部分内的可移除的托盘。 农业系统还包括可以设置在生长室外部的光源。 一个或多个壁可以包括至少一个孔。 光源构造成照亮生长室内部的至少一部分。 在其中光源设置在生长室外部的实施例中，光源构造成经由至少一个孔将激光透射到生长室的内部。

公开(公告)号：US11529605B2

公开(公告)日：2022-12-20

申请号：US16331624

申请日：2017-09-08

Applicant: King Abdullah University of Science and Technology

Inventor： Rami Tarek El Afandy ,  Mohamed Ebaid Abdrabou Hussein ,  Boon S. Ooi ,  Tien Khee Ng

IPC: H01L21/02 ,  B01J19/12 ,  C01B3/04 ,  C01B13/02 ,  C25B11/02 ,  H01L29/20 ,  C25B1/55

Abstract: Devices for photoelectrodes for water splitting based on indium nanowires on flexible substrates as well as methods of manufacture by transferring nanowire arrays to flexible substrates.

公开(公告)号：US11158763B2

公开(公告)日：2021-10-26

申请号：US16838299

申请日：2020-04-02

Applicant: King Abdullah University of Science and Technology

Inventor： Boon S. Ooi ,  Aditya Prabaswara ,  Bilal Janjua ,  Tien Khee Ng

IPC: H01L33/24 ,  H01L33/00 ,  H01L33/06 ,  H01L33/08 ,  H01L33/42 ,  H01L33/40 ,  H01L33/16 ,  H01L33/32 ,  H01L33/38 ,  H01L33/62 ,  H01L33/18

Abstract: A dislocation-free GaN/InGaN-based nanowires-LED epitaxially grown on a transparent, electrically conductive template substrate. The simultaneous transparency and conductivity are provided by a thin, translucent metal contact integrated with a quartz substrate. The light transmission properties of the translucent metal contact are tunable during epitaxial growth of the nanowires LED. Transparent light emitting diodes (LED) devices, optical circuits, solar cells, touch screen displays, and integrated photonic circuits can be implemented using the current platform.

公开(公告)号：US11095097B2

公开(公告)日：2021-08-17

申请号：US16464186

申请日：2017-11-28

Applicant: King Abdullah University of Science and Technology

Inventor： Boon Siew Ooi ,  Chao Shen ,  Tien Khee Ng

IPC: H01S5/026 ,  H01S5/343 ,  H01S5/20 ,  H01S5/22 ,  H01S5/50 ,  H01S5/042

Abstract: An integrated semiconductor optical amplifier-laser diode (SOA-LD) device includes a laser diode (LD) section fabricated on a substrate, a semiconductor optical amplifier (SOA) section fabricated on the substrate adjacent to the LD section; and a trench formed at least partially between the LD section and SOA section to electrically isolate the LD section and the SOA section while maintaining optical coupling between the LD section and the SOA section.

公开(公告)号：US10884268B2

公开(公告)日：2021-01-05

申请号：US16471789

申请日：2017-12-28

Applicant: King Abdullah University of Science and Technology

Inventor： Boon S. Ooi ,  Aditya Prabaswara ,  Bilal Janjua ,  Tien Khee Ng

IPC: F21K9/64 ,  G02F1/017 ,  F21K9/62 ,  F21K9/68 ,  F21K9/69 ,  H01L27/15 ,  H01L33/24 ,  H01L33/36 ,  F21Y115/30 ,  F21Y113/13 ,  H01L33/06 ,  H01L33/32

Abstract: A system and method providing correlated color temperature-tunable (CCT-tunable) white light using a laser diode(s) in conjunction with a III-Nitride nanowires-based LED element grown on a semi-transparent substrate. The tunability spans across yellow, amber, and red wavelengths and can be implemented by current injection. The current-dependent broad wavelength tunability enables control of wide range of CCT values (intensity, peak wavelength, and spectral coverage). The broad coverage in the yellow-amber-red color regime mimics that of a passive yellow phosphor, while the injection of current into the LED element defines an active phosphor element. The semi-transparent active phosphor element allows direct transmission of light from a laser diode(s) for achieving extreme wide tunability of CCT.