公开(公告)号：US20240085369A1

公开(公告)日：2024-03-14

申请号：US18069593

申请日：2022-12-21

Applicant: National Taiwan University of Science and Technology

Inventor： Chih-Yu Chang ,  Chun-Yi Ho ,  Yu-Hsuan Cheng ,  Ying-Ying Chen

IPC: G01N27/416 ,  G01N27/30 ,  H02N1/04

CPC classification number: G01N27/416 ,  G01N27/30 ,  H02N1/04

Abstract: Disclosed is a self-powered formaldehyde sensing device, comprising: a triboelectric material electrode layer including a first substrate and a first electrode layer formed on the first substrate; a triboelectric material dielectric layer including a second substrate, a second electrode layer formed on the second substrate, a dielectric reacting layer formed on the second electrode layer, and a reaction modification layer formed on the dielectric reacting layer to surface-modify the dielectric reacting layer, the reaction modification layer being a phosphomolybdic acid complex (cPMA) layer, the phosphomolybdic acid complex of the phosphomolybdic acid complex layer being obtained by dissolving 4,4′-bipyridine (BPY) in isopropanol (IPA) and then mixing with phosphomolybdic acid (PMA) solution; an elastic spacer; and an external circuit.