38 Results for 'Zhenqiang Ma'
PAGE 2 OF 2
Technology
Flexible Thin-Film Transistors for Mass Production
Flexible electronics such as pliant displays, wearable electronics and new biomedical devices have gained popularity in recent years. Such devices are mounted on a supple plastic support layer and off...
Learn More
Learn More
Zhenqiang Ma, Jung-Hun Seo | P150093US01
Technology
New Biodegradable Integrated Circuits Signal the Future of E-Waste Management
Electronic waste management remains an ongoing challenge both domestically and abroad. Scrap components of electronics such as computers, cellphones and refrigerators contain high amounts of heavy met...
Learn More
Learn More
Zhenqiang Ma, Yei Hwan Jung, Shaoqin Gong, Tzu-Hsuan Chang | P150290US01
Technology
Flexible MOSFET Phototransistors Maximize Light Sensing
Photodetectors convert light signals into electrical signals and are indispensible components in most optoelectronic applications. These devices comprise various designs and materials. In recent years...
Learn More
Learn More
Zhenqiang Ma, Jung-Hun Seo | P160090US01
Technology
Photoreceptor Scaffold for In Vitro Modeling and Transplantation Therapy
Photoreceptors are specialized cells that capture and convert light into signals that can be processed by the retina and visual centers of the brain. Supportive cells called the retinal pigment epithe...
Learn More
Learn More
Zhenqiang Ma, Yei Hwan Jung, Michael Phillips, David Gamm, Shaoqin Gong | P160094US01
Technology
Boron-Doped Diamond for Next Generation Power Electronics
Diamond is considered a good material candidate for power electronics, offering reliability, low weight and power switching efficiency. Single-crystalline diamond (SCD) has the best overall properties...
Learn More
Learn More
Zhenqiang Ma, Jung-Hun Seo | P140384US01
Technology
Thinner Reflector Stacks for Vertical-Cavity Surface-Emitting Lasers
Distributed Bragg reflectors (DBRs) are found in photodetectors, solar cells and other optical sensors. Stacks of DBRs are incorporated in vertical-cavity surface emitting lasers (VCSELs), which are a...
Learn More
Learn More
Zhenqiang Ma, Jung-Hun Seo | P140364US01
Technology
Hybrid Heterostructure Light-Emitting Devices
Conventional light-emitting diodes (LEDs) are made of an upper ‘p-type’ layer, a middle ‘intrinsic region’ and a bottom ‘n-type’ layer. Such layered structures are called PIN diodes. Curre...
Learn More
Learn More
Zhenqiang Ma, Jung-Hun Seo | P140343US01
Technology
Improved Neuron Electrode Array Uses Graphene
During electrocorticography (ECoG), electrodes are placed directly on the exposed surface of the brain or spinal cord to record electrical signals. The practice is used to conduct neuroscience researc...
Learn More
Learn More
Zhenqiang Ma, Justin Williams, Dong-Wook Park, Amelia Schendel, Solomon Mikael | P140254US01
Technology
Flexible Thin-Film Transistors Are Doped and Strained
Fast, flexible electronics operating at radio frequencies (greater than 1 GHz) are attractive because of their versatility, power savings and wide applicability. Uses include wireless and high-speed c...
Learn More
Learn More
Zhenqiang Ma, Max Lagally, Jung-Hun Seo | P130145US01
Technology
Hydrogen-Doped Germanium Nanomembranes for Photodetectors
Photodetectors based on hydrogen-doped, single-crystalline germanium, including waveguide integrated photodetectors for photonic chip applications are provided. Hydrogen doping provides the single-cry...
Learn More
Learn More
Zhenqiang Ma, Munho Kim | P170097US01
Technology
P-N Diodes And P-N-P Heterojunction Bipolar Transistors With Diamond Collectors And Current Tunneling Layers
P-N diodes that include p-type doped diamond and devices, such as p-n-p heterojunction bipolar transistors, that incorporate the p-n diodes are provided. In the p-n diodes, the diamond at the p-n junc...
Learn More
Learn More
Zhenqiang Ma | P180281US01
Technology
Nitride Based Light-Emitting Diodes with Reduced Efficiency Droop
Blue and UV light-emitting diodes (LEDs) are key to modern, energy-saving lighting and are used in a range of applications including efficient home, farm and building lighting, high-speed networking, ...
Learn More
Learn More
Zhenqiang Ma, Dong Liu | P180227US01
Technology
Aluminum Nitride-Aluminum Oxide Layers For Enhancing The Efficiency Of Group Iii-Nitride Light-Emitting Devices
Light-emitting devices having a multiple quantum well (MQW) diode structure and methods of making and using the devices are provided. The devices include aluminum nitride/aluminum oxide bilayers on th...
Learn More
Learn More
Zhenqiang Ma, Kwangeun Kim | P180041US01