ELECTROCHEMICAL SENSOR AND METHOD OF FORMING THEREOF

• Main Authors: McAuliffe, Donal, Berduque, Alfonso, Ponomarev, Youri Victorovitch, Cawley, Brendan, Speer, Raymond J
• Format: Patent
• Language: English
• Published: 18.02.2021
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

Electrochemical sensors typically include capillaries or openings in a substrate which allow the gas present in the environment to make its way into the sensor. The present disclosure proposes the use of a hydrophobic layer, coating or surface in various arrangements around these openings in order to help prevent or restrict electrolyte leaving the sensor and also prevent moisture or other liquids entering the sensor. In some such electrochemical sensors, the hydrophobic layer acts to prevent or restrict electrolyte from drying out or leaving the sensor. In other such electrochemical sensors, there is a porous electrode and a liquid electrolyte, with the hydrophobic layer repelling the electrolyte from passing through the electrode and out of the electrochemical sensor. In yet other such electrochemical sensors, the sensor is manufactured forming at least one layer of hydrophobic material in order to help prevent or restrict electrolyte from drying out or from leaving the sensor, and also prevent or restrict moisture or other liquids entering the sensor.