Flexible Pyroelectric Free-Standing Nano sheets for Thermal Scavenging

摘要

Majority of waste heat comes from chemical processes, which is inevitable in industry and laboratory environment. Harvesting of such scavenging heat has attracted attention lately due to its high availability and everlasting benefits to the environment. Yet, such harvesting techniques have no practical application due to their problem such as low heat transfer rates, dielectric, piezoelectric and polarization properties. From the previous literature, it is evident that the use of PVDF （Poly-Vinylidene difluoride） based materials has superior pyroelectric capabilities. In this scenario, it is desired to develop a flexible pyroelectric material using PVDF nanosheet with an additional modification to enhance its energy conversion properties. The pyroelectric properties of BTO-PVDF nanosheets were studied and their constant parameters were estimated. Basic material characterizations were carried out to analyse the material properties. A constant temperature hot plate was utilized to check its applicability in real time applications. These findings and methodologies provide novel insights into the understudied realm of pyroelectric response.