Piezoelectric and electrostrictive polymers have demonstrated an ability to convert mechanical energy into electrical energy and vice versa. The mechanisms relating to the energy conversion have been exploited in anextensive range of applications, including sensors and actuators. The goal of energy harvesting is to capture the energy surrounding the material and then convert it into usable electrical energy. Recently, piezoelectric and electrostrictive polymer have gained their renewed interest as smart materials for energy harvesting. From the literature, it is possible that the energy harvested on ambient vibration with piezoelectric and electrostrictive polymers can lead to the self-powered electronic devices, e.g., wireless sensors without the battery usage. This article thus aims to present an overview of the principles of the energy harvesting on ambient vibration with smart materials focusing piezoelectric and electrostrictive polymers. Different approaches for converting the mechanical energy into the electrical energy are included. Important parameters such as the figure of merit for analyzing or predicting the energy conversion capability of the material are described. Finally, the advantages of energy harvesting with these smart polymers in order to possibly meet the needs in light-weight and ultra-low power electronics have also been suggested. However, the enhancements in energy conversion of the polymer materials are further needed.
Piezoelectric and electrostrictive polymers have demonstrated an ability to convert mechanical energy into electrical energy and vice versa. The mechanisms relating to the energy conversion have been exploited in anextensive range of applications, including sensors and actuators. The goal of energy harvesting is to capture the energy surrounding the material and then convert it into usable electrical energy. Recently, piezoelectric and electrostrictive polymer have gained their renewed interest as smart materials for energy harvesting. From the literature, it is possible that the energy harvested on ambient vibration with piezoelectric and electrostrictive polymers can lead to the self-powered electronic devices, e.g., wireless sensors without the battery usage. This article thus aims to present an overview of the principles of the energy harvesting on ambient vibration with smart materials focusing piezoelectric and electrostrictive polymers. Different approaches for converting the mechanical energy into the electrical energy are included. Important parameters such as the figure of merit for analyzing or predicting the energy conversion capability of the material are described. Finally, the advantages of energy harvesting with these smart polymers in order to possibly meet the needs in light-weight and ultra-low power electronics have also been suggested. However, the enhancements in energy conversion of the polymer materials are further needed.
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