A sensor element and a sensor apparatus and method for preparing said sensor element comprising

The present invention discloses a sensor element, comprising: a first conductive electrode, the first conductive electrode having a first conductive member electrically connected thereto; a dielectric layer of the absorbent, the absorbent layer comprises a dielectric intrinsic microporosity polymer; and a second conductive electrode, the second conductive electrode having a second conductive member electrically connected thereto. The second conductive electrode comprises at least one noble metal, the thickness of the second conductive electrode 4 to 10 nanometers and at least one is permeable to organic vapors. The absorbent dielectric layer at least partially disposed between the first conductive electrode and the second conductive electrode. The present invention also discloses a method of preparing the sensor element and a sensor apparatus comprising the sensor element.