Pyroelectric properties of electrochemically anodized PbO thin films

Ferroelectricity-Driven Self-Powered Weak Temperature and Broadband Light Detection in MoS2/CuInP2S6/WSe2 van der Waals Heterojunction Nanoarchitectonics

“…However, when the CIPS is too thick, only the surface absorbs the heat, and the heat is difficult to transfer to the entire volume, so the p is reduced. Figure c depicts the p- value of the MoS 2 /CIPS/WSe 2 vdW heterojunction under a 660 nm laser with the CIPS thickness of 20, 45, 68, and 70 nm compared with those of other pyroelectric materials, such as ZnO, LiTaO 3 , β′-In 2 Se 3 , PZT, α-PbO, PVDF, and P­(VDF-TrFE), and their thicknesses are indicated. Compared with these typical pyroelectric materials, the p of the MoS 2 /CIPS/WSe 2 vdW heterojunction is larger than those of many pyroelectric materials due to the total effect of the polarization of CIPS and the interface junctions.…”