Chang Gung University

Chun-Hui Chen

Chao-Sung Lai

Chia-Ming Yang

Wei-Yin Zeng

Tsung-Cheng Chen

Hsin-Yin Peng

The present invention provides capacitor-based fluid sensing units. The capacitor-based fluid sensing unit comprises a substrate, a first electrode configured on the substrate, a sensing layer configured on the first electrode, a second electrode configured on the sensing layer. More particularly, the second electrode is a porous electrode, while the sensing layer is made of a porous dielectric material and has a thickness between 50 nm and 5 mm. Permittivity of the sensing layer changes as fluid permeates from the second electrode to the sensing layer. The subsequent change in capacitance of the capacitor-based fluid sensing unit is used to determine the volume of the fluid.

Capacitor-based fluid sensing units and operating methods thereof

Light-addressable potentiometric sensing units are provided. A light-addressable potentiometric sensing unit comprises a conductive substrate, a metal oxide semiconductor layer, and a sensing layer. The metal oxide semiconductor layer is made of indium gallium zinc oxide, indium gallium oxide, indium zinc oxide, indium oxide co-doped with tin and zinc, tin oxide, or zinc oxide. The wide-band gap characteristic of the metal oxide semiconductor layer enables the light-addressable potentiometric sensing unit to resist the interference from visible light. The light-addressable potentiometric sensing unit therefore exhibits a more stable performance.

Growing community of inventors

Nantou County, Taiwan

Chun-Hui Chen