Photomechanical Energy Conversion in a Polymer Membrane

Veen, Gijs van der; Prins, W.

doi:10.1038/physci230070a0

Cited by 53 publications

(22 citation statements)

References 8 publications

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“…As compared with the response/recovery speeds of organic polymers5960, the SRO thin films demonstrate a fast photoresistance response that can be attributed to the ultrafast dynamics of electrons excited by light and direct electronic-excitation-induced strain in SRO55. We expect that the response speed can be further increased by doping57 that we are currently investigating.…”

Section: Resultsmentioning

confidence: 96%

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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Section: Resultsmentioning

confidence: 96%

Photostriction of strontium ruthenate

et al. 2017

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“…Reports on molecule-based photomechanical switches were published more than forty years ago [65][66][67][68] and several recent reviews have covered this field [69,70]. For this reason we restrict ourselves here to discussion of a few selected examples in which actuating performance and mechanical properties were reported.…”

Section: Structural Switches For Actuationmentioning

confidence: 99%

Switchable molecule-based materials for micro- and nanoscale actuating applications: Achievements and prospects

Manrique-Juárez

Rat

Salmon

et al. 2016

Coordination Chemistry Reviews

227

202

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“…[43] The ability of polymer gels to undergo substantial swelling and shrinkage as a function of their environment is one of the most remarkable properties of these materials. [47] The polymer gel was found to contract upon irradiation with UV light, becuase the trans-cis isomerization decreases the hydrophobicity of the dye, which leads to libration of the dyes from the polymer chain into the surrounding solution. [43] Studies on the stimuli-responsive gels began as early as the 1950s.…”

Section: Gelsmentioning

confidence: 99%

Photomechanics of Liquid‐Crystalline Elastomers and Other Polymers

2007

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Muscle is a transducer that can convert chemical energy into mechanical motion. To construct artificial muscles, it is desirable to use soft materials with high mechanical flexibility and durability rather than hard materials such as metals. For effective muscle-like actuation, materials with stratified structures and high molecular orders are necessary. Liquid-crystalline elastomers (LCEs) are superior soft materials that possess both the order of liquid crystals and the elasticity of elastomers (as they contain polymer networks). With the aid of LCEs, it is possible to convert small amounts of external energy into macroscopic amounts of mechanical energy. In this Review, we focus on light as an energy source and describe the recent progress in the area of soft materials that can convert light energy into mechanical energy directly (photomechanical effect), especially the photomechanical effects of LCEs with a view to applications for light-driven LCE actuators.

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Photomechanical Energy Conversion in a Polymer Membrane

Cited by 53 publications

References 8 publications

Photostriction of strontium ruthenate

Photostriction of strontium ruthenate

Switchable molecule-based materials for micro- and nanoscale actuating applications: Achievements and prospects

Photomechanics of Liquid‐Crystalline Elastomers and Other Polymers

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