Title: Ratiometric vapor sensor

Abstract

A ratiometric vapor sensor is described that includes a first sensor and a second sensor. The first sensor includes a first semiconductor component comprising a vapor-sensitive semiconducting organic compound, while the second sensor includes a second semiconductor component comprising a modified vapor-sensitive semiconducting organic compound including a modifying organic group. The ratiometric vapor sensor can be used to detect the presence of a vapor such as nitrogen dioxide, and determine the concentration of the vapor by comparing the outputs of electrodes connected to the first and second sensor.

Inventors:

Katz, Howard E.; Li, Hui

Issue Date:

2023-01-31

Research Org.:

Johns Hopkins Univ., Baltimore, MD (United States)

Sponsoring Org.:

USDOE; US Environmental Protection Agency (EPA)

OSTI Identifier:

1987097

Patent Number(s):

11567035

Application Number:

16/612,533

Assignee:

The Johns Hopkins University (Baltimore, MD)

Patent Classifications (CPCs):

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

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G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

G01N27/4141 - {specially adapted for gases}
G01N27/4143 - {Air gap between gate and channel, i.e. suspended gate [SG] FETs
G01N33/0037 - {for NOx}

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

H01L27/098 - the components being PN junction gate field-effect transistors

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE

Y02A50/20 - Air quality improvement or preservation

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DOE Contract Number:  

FG02-07ER46465; RD835871

Resource Type:

Patent

Resource Relation:

Patent File Date: 05/09/2018

Country of Publication:

United States

Language:

English

Subject:

47 OTHER INSTRUMENTATION