Light-Driven Piezo- and Triboelectricity in Organic–Inorganic Metal Trihalide Perovskite toward Mechanical Energy Harvesting and Self-powered Sensor Application

Abstract

A single-structured multifunctional device capable of energy harvesting and sensing multiple physical signals has significant potential for a wide range of applications in the Internet of Things (IoT). In this study, the fabricated single-structured device based on methylammonium lead iodide–polyvinylidene fluoride (MAPbI3–PVDF) composite can harvest mechanical energy and simultaneously operate as a self-powered light and pressure sensor because of the combined photoelectric and piezoelectric/triboelectric properties of the MAPbI3–PVDF composite. Light-dependent dielectric and piezoelectric properties of composite films are thoroughly investigated. Light and contact electrification effect on device performance in both piezoelectric and triboelectric modes is also systematically investigated. When the device is operated as a harvester in both piezoelectric and triboelectric modes, remarkable light-driven outputs were observed under illumination; the outputs decreased in the piezoelectric mode, while they increased in the triboelectric mode. Such light-controlled properties enabled the device to operate as a self-powered photodetector with outstanding responsivity (∼129.2 V/mW), rapid response time (∼50 ms), and satisfactory detectivity (∼1.4 × 1010 Jones) in the piezoelectric mode. The same device could also operate as a pressure sensor that exhibited excellent pressure sensitivity values of 0.107 and 0.194 V/kPa in the piezoelectric and triboelectric modes, respectively. In addition, the device exhibits a fast response time with long-term on–off switching properties, excellent mechanical durability, and long-term stability.

Recent Advances in Organic and Organic–Inorganic Hybrid Materials for Piezoelectric Mechanical Energy Harvesting

“…Reproduced with permission. [ 125 ] Copyright 2020, American Chemical Society. c) Schematic of MAPbI 3 ‐PVDF composite device; the cross‐sectional scanning electron microscopy (SEM) image represents the thickness of the composite film.…”

“…Yoon and co‐workers described a light‐driven piezo‐ and triboelectricity in a MAPbI 3 –PVDF composite device (Figure 27b). [ 125 ] The self‐powered MAPbI 3 –PVDF device was able to harvest mechanical energy and simultaneously operate as a light and pressure sensor, owing to the combined photoelectric, piezoelectric and triboelectric properties. The light‐controlled PEH output device performance was measured using two electrodes by applying a load pressure of 300 kPa.…”

Organolead halide perovskites beyond solar cells: self-powered devices and the associated progress and challenges

“…Flexible pressure sensors have numerous applications in areas such as artificial electronic skins 145,151,152 , health monitoring devices [153][154][155][156] , soft robotics [157][158][159] , and wearable technology. [160][161][162][163][164][165] It also improves the seamless interfacing of such devices with the environment to act as a medium for information collection to drive robotics and human-artificial intelligence interactions.…”

Self-Powered Organometal Halide Perovskite Photodetector with Embedded Silver Nanowires

“…Recently, organometal halide perovskites have attracted a significant attention in the optoelectronics research community due to their outstanding properties such as low-temperature solution-processability, long charge-carrier diffusion lengths, tunable bandgap, and strong absorption of visible light [ 14 , 15 , 16 , 17 , 18 , 19 , 20 ]. Hence, perovskites are promising materials for applications in light-emitting diodes, lasers, and broadband PDs [ 21 , 22 , 23 , 24 , 25 , 26 , 27 ]. Despite their exceptional optoelectronic properties, there are a number of factors that can affect the performance of perovskite photodetectors (PPDs).…”