Thakre, Atul Kumar, Ajeet Song, Hyun-Cheol Jeong, Dae-Yong Ryu, Jungho 2024-01-19T20:03:05Z 2024-01-19T20:03:05Z 2021-09-02 2019-05-01 1424-8220 https://pubs.kist.re.kr/handle/201004/120015 Among the various forms of natural energies, heat is the most prevalent and least harvested energy. Scavenging and detecting stray thermal energy for conversion into electrical energy can provide a cost-effective and reliable energy source for modern electrical appliances and sensor applications. Along with this, flexible devices have attracted considerable attention in scientific and industrial communities as wearable and implantable harvesters in addition to traditional thermal sensor applications. This review mainly discusses thermal energy conversion through pyroelectric phenomena in various lead-free as well as lead-based ceramics and polymers for flexible pyroelectric energy harvesting and sensor applications. The corresponding thermodynamic heat cycles and figures of merit of the pyroelectric materials for energy harvesting and heat sensing applications are also briefly discussed. Moreover, this study provides guidance on designing pyroelectric materials for flexible pyroelectric and hybrid energy harvesting. English MDPI FREE PIEZOELECTRIC MATERIALS ELECTRICAL ENERGY THERMAL-ENERGY WASTE HEAT FERROELECTRIC PROPERTIES THICK-FILM LARGE-AREA NANOGENERATOR GENERATOR PERFORMANCE Pyroelectric Energy Conversion and Its ApplicationsFlexible Energy Harvesters and Sensors Article 10.3390/s19092170 1 SENSORS, v.19, no.9 SENSORS 19 9 scie scopus 000469766800214 2-s2.0-85066061365 Chemistry, Analytical Engineering, Electrical & Electronic Instruments & Instrumentation Chemistry Engineering Instruments & Instrumentation Article FREE PIEZOELECTRIC MATERIALS ELECTRICAL ENERGY THERMAL-ENERGY WASTE HEAT FERROELECTRIC PROPERTIES THICK-FILM LARGE-AREA NANOGENERATOR GENERATOR PERFORMANCE pyroelectric materials thermal energy harvesters flexible