Photostriction effect in silicon observed by time-resolved x-ray diffraction

Buschert, John R.; Colella, R.

doi:10.1016/0038-1098(91)90718-b

Cited by 20 publications

(20 citation statements)

References 8 publications

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“…In the literature, photostriction has been reported for several non-polar semiconductors, polar materials (including ferroelectrics), chalcogenide glasses and organic materials. Following the work of Kundys 24 , we analyse the experimentally observed photostrictive coefficients (normalized to the light intensity) of known materials as shown in Table 1 (refs 24 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 ). In non-polar semiconductors, it is related to the pressure susceptibility of the energy gap based on the deformation potential theory 41 .…”

Section: Discussionmentioning

confidence: 99%

“…In non-polar semiconductors, it is related to the pressure susceptibility of the energy gap based on the deformation potential theory 41 . This is justified by the opposite signs of d E g /d P in Ge and Si and the corresponding photostrictive responses 26 27 . Recently, it is reported that the band gap of CH 3 NH 3 PbBr 3 (MAPbBr 3 ) reduces with increasing hydrostatic pressure 42 , which should lead to the contraction of the lattice under illumination, contrary to our results.…”

Section: Discussionmentioning

confidence: 99%

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Giant photostriction in organic–inorganic lead halide perovskites

et al. 2016

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Among the many materials investigated for next-generation photovoltaic cells, organic–inorganic lead halide perovskites have demonstrated great potential thanks to their high power conversion efficiency and solution processability. Within a short period of about 5 years, the efficiency of solar cells based on these materials has increased dramatically from 3.8 to over 20%. Despite the tremendous progress in device performance, much less is known about the underlying photophysics involving charge–orbital–lattice interactions and the role of the organic molecules in this hybrid material remains poorly understood. Here, we report a giant photostrictive response, that is, light-induced lattice change, of >1,200 p.p.m. in methylammonium lead iodide, which could be the key to understand its superior optical properties. The strong photon-lattice coupling also opens up the possibility of employing these materials in wireless opto-mechanical devices.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Giant photostriction in organic–inorganic lead halide perovskites

et al. 2016

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“…Many materials show photostrictive behaviour, including ferroelectrics 8 9 10 , organic polymers 11 12 and inorganic semiconductors 13 14 15 . However, the mechanisms of the photostrictive effect vary depending on the material and are often poorly understood, thus limiting practical applications.…”

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confidence: 99%

Photostriction of strontium ruthenate

et al. 2017

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Transition metal oxides with a perovskite crystal structure exhibit a variety of physical properties associated with the lattice. Among these materials, strontium ruthenate (SrRuO3) displays unusually strong coupling of charge, spin and lattice degrees of freedom that can give rise to the photostriction, that is, changes in the dimensions of material due to the absorption of light. In this study, we observe a photon-induced strain as high as 1.12% in single domain SrRuO3, which we attribute to a nonequilibrium of phonons that are a result of the strong interaction between the crystalline lattice and electrons excited by light. In addition, these light-induced changes in the SrRuO3 lattice affect its electrical resistance. The observation of both photostriction and photoresistance in SrRuO3 suggests the possibility of utilizing the mechanical and optical functionalities of the material for next-generation optoelectronics, such as remote switches, light-controlled elastic micromotors, microactuators and other optomechanical systems.

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“…In parallel to electro‐control, another versatile approach, light‐control can be also powerful for generating giant crystal strain through the so‐called photostrictive effect. [ 4–11 ] Nevertheless, distinctly different from electro‐control that may apply over the whole sample, light‐control is more or less a surface effect since light illumination is usually absorbed within a thin surface layer in order to excite photocarriers. Therefore, photostriction is usually a surface effect rather than a bulk effect, noting that terminology “bulk strain” refers to the strain over a bulk sample.…”

Section: Introductionmentioning

confidence: 99%

Giant Bulk Photostriction and Accurate Photomechanical Actuation in Hybrid Perovskites

Dong

Huang

et al. 2021

Advanced Optical Materials

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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 ε ≈ 0.72–0.43% for MAPbI3 single crystal plates of 0.05–0.5 mm in thickness under the 532 nm illumination. More importantly, the MAPbI3 single crystals also exhibit accurate photomechanical actuation functionality and the actuator can precisely adjust the displacement from hundreds of pm to tens of μm or the angle of a hard mirror from ≈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.

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Photostriction effect in silicon observed by time-resolved x-ray diffraction

Cited by 20 publications

References 8 publications

Giant photostriction in organic–inorganic lead halide perovskites

Giant photostriction in organic–inorganic lead halide perovskites

Photostriction of strontium ruthenate

Giant Bulk Photostriction and Accurate Photomechanical Actuation in Hybrid Perovskites

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