公开(公告)号：US20200292489A1

公开(公告)日：2020-09-17

申请号：US15779567

申请日：2016-11-30

Applicant: EMBERION OY

Inventor： Samiul HAQUE ,  Alan COLLI

IPC: G01N27/414

Abstract: An apparatus comprising a pyroelectric layer, a two dimensional conductive channel and a floating gate. The pyroelectric layer is capacitively configured with respect to each of the two dimensional conductive channel and the floating gate. The floating gate comprises electrically connected first and second portions, the first portion is in thermal proximity to the first portion of the pyroelectric layer. The second portion is configured to overlie and gate flow of electrical charge through the two dimensional conductive channel by charge in the second portion of the floating gate. The first portion is functionalised to detect one or more proximal specific species. Such detection gives rise to heat flow to or from the thermally proximal pyroelectric layer to allow the pyroelectric layer to generate an electrical signal dependent upon one or more of the presence and amount of the specific detected species.