材料科学
摩擦电效应
钙钛矿(结构)
电介质
光电子学
兴奋剂
纳米技术
化学工程
复合材料
工程类
作者
Yudi Wang,Jialong Duan,Xiya Yang,Liqiang Liu,Leilei Zhao,Qunwei Tang
出处
期刊:Nano Energy
[Elsevier]
日期:2020-03-01
卷期号:69: 104418-104418
被引量:69
标识
DOI:10.1016/j.nanoen.2019.104418
摘要
Inorganic cesium lead tri-bromine (CsPbBr3) perovskite is a star material in modern optoelectronic and electronic nanodevices due to its fascinating optical and electronic properties and excellent stability in atmosphere. However, the unique dielectric behavior still remains to be exploited. Herein, inorganic CsPbBr3 perovskite is introduced into triboelectric nanogenerators for the first time in view of its tremendous dielectric and electrical properties. Electron binding energy, dielectric properties and surface potentials are systematically optimized through doping Ba2+ into CsPbBr3 lattice to form CsPb1-xBaxBr3 (x = 0.01–0.13) perovskites. The output performances are significantly improved on account of enhanced space charge polarization and increased work function. An open-circuit voltage of 220 V, short-circuit current density of 22.8 mA m−2 and maximized power density of 3.07 W m−2 are registered by the champion CsPb0.91Ba0.09Br3 based TENG with lighting up over 80 LED lights. Finally, impacts of temperature and relative humidity on the output performance of perovskite TENG are investigated, high durability and stability of the perovskite TENGs are presented indicating the remarkable reversibility and adaptability of all-inorganic CsPbBr3 perovskites in TENG for mechanical energy harvesting.
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