期刊
NANO ENERGY
卷 77, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.nanoen.2020.105280
关键词
Inorganic perovskite; Triboelectrification behavior; Triboelectric series; Alkaline earth ions doping; Tribo-photovoltaic effect
类别
资金
- Postdoctoral Research Foundation of China [2019M650231, 2019M663379]
- Director Foundation from Qingdao National Laboratory for Marine Science and Technology [QNLM201702]
- National Natural Science Foundation of China [61774139, U1802257]
- Natural Science Foundation of Guangdong Province [2019B151502061, 2020A1515011123]
- Fundamental Research Funds for the Central Universities [21618409, 21619311]
The in-depth understanding on the electrification behavior of dielectric materials is a prerequisite to improve their surface triboelectric charge density in triboelectric nanogenerators (TENGs). Herein, triboelectric charging affinities and polarities of all-inorganic cesium lead trTbromine (CsPbBr3) and alkaline earth ions doped CsPb1-xMxBr3 (M = Mg2+, Ca2+, Sr2+, Ba2+, x = 0-1) perovskites are systematically investigated by assembling into vertical contact-separation TENGs. An enriched triboelectric series supplemented with pristine CsPbBr3 and CsPb1-xMxBr3 perovskites with quantified triboelectric charging polarity is presented through analyzing the electrical output performances, figure-of-merits (EOM), dielectric property, work function, bond energy and electron binding energy. Systematical analyses of three different configurations of dielectric/perovskite TENG, carbon/pemvskite TENG and pemvskite solar cell are compared in dark and under illumination. It is found that the photoinduced charges play significant role in enhancing the triboelectrification charges and altering charging polarity of pemvskite. Our work supplements inorganic perovskites to triboelectric series and provides new insights on inorganic perovskite in the foundation of tribo-photovoltaic theory and triboelectric devices.
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