Giant Bulk Photostriction and Accurate Photomechanical Actuation in Hybrid Perovskites

Lv, Xingjie1; Dong, Shuai2; Huang, Xin3; Cao, Bo1; Zeng, Shouxin1; Wang, Yaojin1; Wu, Tom4; Chen, Lang5; Wang, Junling5,6; Yuan, Guoliang1; Liu, Jun-Ming7

2021-08-01

10.1002/adom.202100837

Advanced Optical Materials   影响因子和分区

2195-1071

It is well known that a material may be strained by mechanical, thermal, electric, magnetic, and light stimuli, and this effect has been extensively utilized in industries. However, the observed photostrictive effect usually occurs in the very thin surface layer and the photostriction of most bulk materials has been too small to be applied in a device until now. Here, a giant bulk photostriction is achieved, evidenced by the measured linear strain epsilon approximate to 0.72-0.43% for MAPbI(3) single crystal plates of 0.05-0.5 mm in thickness under the 532 nm illumination. More importantly, the MAPbI(3) single crystals also exhibit accurate photomechanical actuation functionality and the actuator can precisely adjust the displacement from hundreds of pm to tens of mu m or the angle of a hard mirror from approximate to 10(-6) to 0.2 degree. The present work not only unveils the huge bulk photostriction in lead halide perovskite single crystals but also demonstrates a wireless photomechanical actuator which is much simpler and smaller than conventional piezoelectric actuators.

bulk photostriction halide perovskites MAPbI (3) photomechanical actuators

SCI ; EI

英语

其他

National Natural Science Foundation of China[51790492,51721001,11834002,61874055] ; National Key Research Program of China[2016YFA0300101]

Materials Science ; Optics

Materials Science, Multidisciplinary ; Optics

WOS:000680537500001

WILEY-V C H VERLAG GMBH

20213210752818

Lead compounds ; Perovskite ; Single crystals

Minerals:482.2 ; Control Devices:732 ; Crystalline Solids:933.1

Web of Science

1.Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China
2.Southeast Univ, Sch Phys, Nanjing 211189, Peoples R China
3.Nanjing Univ Posts & Telecommun, Sch Sci, Informat Phys Res Ctr, New Energy Technol Engn Lab Jiangsu Prov, Nanjing 210023, Peoples R China
4.Univ New South Wales UNSW, Sch Mat Sci & Engn, Sydney, NSW 2052, Australia
5.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
6.Southern Univ Sci & Technol, Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China
7.Nanjing Univ, Lab Solid State Microstruct, Nanjing 210093, Peoples R China

Lv, Xingjie,Dong, Shuai,Huang, Xin,et al. Giant Bulk Photostriction and Accurate Photomechanical Actuation in Hybrid Perovskites[J]. Advanced Optical Materials,2021,9.

Lv, Xingjie.,Dong, Shuai.,Huang, Xin.,Cao, Bo.,Zeng, Shouxin.,...&Liu, Jun-Ming.(2021).Giant Bulk Photostriction and Accurate Photomechanical Actuation in Hybrid Perovskites.Advanced Optical Materials,9.

Lv, Xingjie,et al."Giant Bulk Photostriction and Accurate Photomechanical Actuation in Hybrid Perovskites".Advanced Optical Materials 9(2021).