摘要:
A sensor element includes a first conductive electrode having a first conductive member electrically coupled thereto; an absorptive dielectric layer comprising a polymer of intrinsic microporosity; and a second conductive electrode having a second conductive member electrically coupled thereto. The second conductive electrode comprises at least one noble metal, has a thickness of from 4 to 10 nanometers and is permeable to at least one organic vapor. The absorptive dielectric layer is at least partially disposed between the first conductive electrode and the second conductive electrode. A method of making the sensor element, and sensor device containing it, are also disclosed.
摘要:
A sensor element includes a first conductive electrode having a first conductive member electrically coupled thereto; an absorptive dielectric layer comprising a polymer of intrinsic microporosity; and a second conductive electrode having a second conductive member electrically coupled thereto. The second conductive electrode comprises at least one noble metal, has a thickness of from 4 to 10 nanometers and is permeable to at least one organic vapor. The absorptive dielectric layer is at least partially disposed between the first conductive electrode and the second conductive electrode. A method of making the sensor element, and sensor device containing it, are also disclosed.
摘要:
A method of using an absorptive sensor element includes: providing the absorptive sensor element, heating the absorptive sensor element to a temperature in a range of from 30° C. to 100° C., exposing the absorptive sensor element to an analyte vapor, and measuring a capacitance-related property of the absorptive sensor element and/or a spectral feature upon reflection of incident light. The absorptive sensor element comprises: a substrate, a first member disposed on the substrate, a second member, and a detection layer comprising a polymer of intrinsic microporosity disposed between and contacting the first member and the second member.
摘要:
A method of using a sensor element includes: exposing a sensor element to an unknown analyte vapor; measuring a capacitance of the sensor element to obtain a measured capacitance; obtaining a true capacitance of the sensor element; exposing the semi-reflective conductive electrode to incident light and observing reflected light in order to measure a spectral change between the incident light and the reflected light; comparing the true capacitance and the measured spectral change, or at least one derivative thereof, to a reference library, the reference library comprising reference correlations between spectral change and true capacitance, or at least one derivative thereof, for a plurality of reference analyte vapors; and determining at least one of the chemical class or identity of the analyte vapor.
摘要:
A method of using an absorptive sensor element includes: providing the absorptive sensor element, heating the absorptive sensor element to a temperature in a range of from 30° C. to 100° C., exposing the absorptive sensor element to an analyte vapor, and measuring a capacitance-related property of the absorptive sensor element and/or a spectral feature upon reflection of incident light. The absorptive sensor element comprises: a substrate, a first member disposed on the substrate, a second member, and a detection layer comprising a polymer of intrinsic microporosity disposed between and contacting the first member and the second member.
摘要:
Methods of generating a reference correlation for use with an absorptive capacitance vapor sensor and calibration of the absorptive capacitance vapor sensor. An electronic article including the reference correlation and methods of using the same are also disclosed.
摘要:
A method of using a sensor element includes: exposing a sensor element to an unknown analyte vapor; measuring a capacitance of the sensor element to obtain a measured capacitance; obtaining a true capacitance of the sensor element; exposing the semi-reflective conductive electrode to incident light and observing reflected light in order to measure a spectral change between the incident light and the reflected light; comparing the true capacitance and the measured spectral change, or at least one derivative thereof, to a reference library, the reference library comprising reference correlations between spectral change and true capacitance, or at least one derivative thereof, for a plurality of reference analyte vapors; and determining at least one of the chemical class or identity of the analyte vapor.
摘要:
A protective film includes a base layer and a wear layer, the wear layer comprising a UV cured hardcoat resin, and the UV cured hardcoat resin comprising surface modified silica nanoparticles. The protective film may comprise a pressure sensitive adhesive for adhesion to a floor. The protective film may be used, for example, as a protective floor finish.
摘要:
A sensor element (100) includes a first conductive electrode (120) having a first conductive member (122) electrically coupled thereto; an absorptive dielectric layer (130) comprising a polymer of intrinsic microporosity; and a second conductive electrode (140) having a second conductive member (142) electrically coupled thereto. The second conductive electrode comprises carbon nanotubes and is permeable to at least one organic vapor. The absorptive dielectric layer is at least partially disposed between the first conductive electrode and the second conductive electrode. A method of making the sensor element, and sensor device (200) containing it, are also disclosed.
摘要:
Sensing elements for sensing organic chemical analytes are disclosed. The sensing elements include a first electrode and a second electrode, and a substantially microporous, amorphous, hydrophobic, analyte-responsive organosilicate material in proximity to the first and second electrodes.