High-performance perovskite-based energy harvesting devices

高性能钙钛矿能量收集装置

• 批准号: RGPIN-2022-03161
• 负责人: Ban, Dayan
• 金额: $ 2.84万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=751562
• 关键词: performance; perovskite; based; energy; harvesting

Piezoelectric nanogenerators (PENGs), which can convert ubiquitously available mechanical energies to electricity, have emerged as a very promising power source for self-powered small-sized electronics and sensors. In piezoelectric materials, the dipole moment of molecules/atoms is altered upon the application of external mechanical strain, leading to macroscopic electric charge accumulation/current flow at material surfaces. Nevertheless, most of conventional piezoelectric materials are inorganic crystals and/or ceramics. Unfortunately, these highly-piezoelectric inorganic crystals and ceramics are inherently brittle (thus fragile and not flexible) and their material synthesis is often based on a high-temperature process.  The goal of this research program is to develop and optimize high-performance organic-inorganic hybrid perovskite-based energy harvesting technologies. The organic-inorganic hybrid perovskite composite materials combine the merits of both organic molecules and crystalline inorganic materials at a molecular level. The key research objectives include: (1) The material synthesis and characterization of novel perovskite materials with high piezoelectric coefficient and excellent chemical stability using solution-based approaches; (2) The device fabrication and characterization of energy-harvesting devices based on organic-inorganic hybrid perovskite composite materials; (3) The application demonstration of fabricated devices for energy harvesting, wireless communication and remote sensing. The development and implementation of these novel technologies will help establish a leadership position for Canada within this growing field of green energy nanomaterials and devices. The commercialization of the invented materials and devices will promote Canadian industry in the fields of Internet of Things, wearable electronics and sensors, and biomedical engineering. This research will also provide an excellent opportunity for graduate students and postdoctoral fellows to gain hands-on experience in nanomaterials, nanofabrication, nanoelectronics, biomedical devices. These skills include material synthesis and characterizations; electrical, optical, spectroscopic and microscopic characterizations; device fabrication and system integration; communication, interpersonal and leadership skills, which are crucial for careers in the strategically important sectors (nanoelectronics, advanced manufacture, biomedical devices, health care) to the Canadian economy.

压电纳米发电机（PENGs）可以将无处不在的机械能转化为电能，已经成为一种非常有前途的自供电小型电子设备和传感器的电源。在压电材料中，施加外部机械应变会改变分子/原子的偶极矩，导致材料表面的宏观电荷积累/电流流动。然而，大多数传统的压电材料是无机晶体和/或陶瓷。不幸的是，这些高压电无机晶体和陶瓷本身就很脆（因此易碎且不灵活），而且它们的材料合成通常基于高温过程。该研究项目的目标是开发和优化高性能有机-无机混合钙钛矿能量收集技术。有机-无机杂化钙钛矿复合材料在分子水平上结合了有机分子和结晶无机材料的优点。主要研究目标包括：(1)利用溶液法合成具有高压电系数和优异化学稳定性的新型钙钛矿材料；(2)基于有机-无机杂化钙钛矿复合材料的能量收集装置的制备与表征；(3)能量采集、无线通信、遥感等制造器件的应用演示。这些新技术的开发和实施将有助于加拿大在绿色能源纳米材料和器件领域建立领导地位。发明的材料和设备的商业化将促进加拿大在物联网、可穿戴电子和传感器以及生物医学工程领域的工业发展。这项研究也将为研究生和博士后提供一个在纳米材料、纳米制造、纳米电子学和生物医学设备方面获得实践经验的绝佳机会。这些技能包括材料合成和表征；电学、光学、光谱学和显微特性；器件制造和系统集成；沟通、人际关系和领导技能，这些技能对加拿大经济具有重要战略意义的部门（纳米电子、先进制造、生物医学设备、医疗保健）的职业生涯至关重要。