Search Results - chih-hung+chang

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Apparatus and Method for continuous Production of Semiconductor Nanoparticles

A continuous-flow injection reactor and a method for continuous material synthesis, including synthesis of nanoparticles Background Nanocrystalline semiconductors have attracted a considerable amount of attention due to their unique physiochemical properties. Recent advances in nanocrystals are having a dramatic impact on the development of next...

Published: 10/15/2024 | Inventor(s): Chih-hung Chang, Hyungdae Jin, Yu-Wei Su

Keywords(s): Advanced Technology and Manufacturing Inst. (ATAMI), Chemicals / Chemical Engineering, Electrical & Computer Engineering, Nanotechnology

Category(s): Chemical, Chemistry, Engineering, Nanoscience & Microtechnologies, Device, Materials Science, Physical Science

Conductive Metalorganic Framework Chemical Sensors

Technology Description This technology is a gas sensing device made of a highly oriented metal-organic framework (MOF) material on an oxide substrate. The MOF is also made conductive by the addition of a redox active molecule. The conductive MOF is made without using a gold substrate, and the method of assembling the MOF layers incorporating the redox...

Published: 12/23/2021 | Inventor(s): Chih-Hung Chang, Ki-Joong Kim, Alan Wang, Yujing Zhang, Xinyuan Chong

Keywords(s): Advanced Technology and Manufacturing Inst. (ATAMI), Chemicals / Chemical Engineering, Sensors

Category(s): Chemical, Device, Engineering, Materials Science, Nanoscience & Microtechnologies, Physical Science

Segmented Flow for a Continuous Flow Microwave Reactor

Technology Description This invention is a continuous, segmented flow reactor system and method for the production of high quality NCs with microwave radiation. The system for NCs synthesis consists of an NC precursor configured to include an NC precursor solution with the ability to include a microwave reactor, segmentation fluid source, or other configurations...

Published: 5/10/2021 | Inventor(s): Gregory Herman, Brian Paul, Chih-Hung Chang, Ki-Joong Kim, Richard Oleksak, Padmavathi Chandran, Eric Hostetler, Brendan Flynn, Daniel Peterson, Bob Fitzmorris, Gustavo Albuquerque

Keywords(s): Advanced Technology and Manufacturing Inst. (ATAMI), Chemicals / Chemical Engineering, Computer Software, Materials Science, Nanotechnology, Photovoltaics

Category(s): Engineering

Fiber Optic Infrared Absorption Gas Sensors with Metal-Organic Framework Materials

Technology Description The fiber-optic chemical sensing platform couples light guides with a metal-organic framework (MOF) and plasmonic nanomaterial sensing components to provide increased near-infared (NIR) detection sensitivity. The MOF thin films rapidly absorb and sense gases by leveraging a network of plasmonic nanocrystals that act at the NIR...

Published: 12/23/2021 | Inventor(s): Alan Wang, Chih-Hung Chang, Paul Ohodnicki, Ki-Joong Kim, Xinyuan Chong

Keywords(s): Advanced Technology and Manufacturing Inst. (ATAMI), fiber optics, Sensors

Category(s): Engineering

Printable Conductive Inks

Background of Invention Silver possesses excellent electrical conductivity, surface plasmon resonance, and high reflectivity, leading to its use in a wide variety of applications including microelectronic circuitry, gas sensors, low emissivity coatings and transparent conductive electrodes. Significant effort has been made toward the development...

Published: 3/25/2022 | Inventor(s): Chih-Hung Chang, Chang-Ho Choi

Keywords(s): Advanced Technology and Manufacturing Inst. (ATAMI), Chemicals / Chemical Engineering, electronics, microreactor, transparent electronics

Category(s): Engineering, Materials Science, Nanoscience & Microtechnologies, Physical Science