气候变化领域集成服务门户(CCPortal): Performance of molecular crystals in conversion of light to mechanical work

CCPortal

DOI	10.1073/pnas.2020604118
	Performance of molecular crystals in conversion of light to mechanical work
	Halabi J.M.; Ahmed E.; Sofela S.; Naumov P.
发表日期	2021
ISSN	00278424
卷号	118 期号:5
英文摘要	Dynamic molecular crystals have recently received ample attention as an emerging class of energy-transducing materials, yet have fallen short of developing into fully realized actuators. Through the trans–cis surface isomerization of three crystalline azobenzene materials, here, we set out to extensively characterize the light-to-work energy conversion of photoinduced bending in molecular crystals. We distinguish the azobenzene single crystals from commonly used actuators through quantitative performance evaluation and specific performance indices. Bending molecular crystals have an operating range comparable to that of microactuators such as microelectromechanical systems and a work-generating capacity and dynamic performance that qualifies them to substitute micromotor drivers in mechanical positioning and microgripping tasks. Finite element modeling, applied to determine the surface photoisomerization parameters, allowed for predicting and optimizing the mechanical response of these materials. Utilizing mechanical characterization and numerical simulation tools proves essential in accelerating the introduction of dynamic molecular crystals into soft microrobotics applications. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Actuators; Azobenzenes; Molecular crystals; Photochemistry; Soft materials
语种	英语
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/180824
作者单位	Smart Materials Lab (SML), Division of Science and Mathematics, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates; Division of Engineering, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates; Radcliffe Institute for Advanced Study, Harvard University, Cambridge, MA 02138, United States
推荐引用方式 GB/T 7714	Halabi J.M.,Ahmed E.,Sofela S.,et al. Performance of molecular crystals in conversion of light to mechanical work[J],2021,118(5).
APA	Halabi J.M.,Ahmed E.,Sofela S.,&Naumov P..(2021).Performance of molecular crystals in conversion of light to mechanical work.Proceedings of the National Academy of Sciences of the United States of America,118(5).
MLA	Halabi J.M.,et al."Performance of molecular crystals in conversion of light to mechanical work".Proceedings of the National Academy of Sciences of the United States of America 118.5(2021).