Light-Induced Deformation of Azobenzene-Containing Colloidal Spheres: Calculation and Measurement of Opto-Mechanical Stresses

被引：29

作者：

Loebner, Sarah ^{[1
]}

Lomadze, Nino ^{[1
]}

Kopyshev, Alexey ^{[1
]}

Koch, Markus ^{[2
]}

Guskova, Olga ^{[2
]}

Saphiannikova, Marina ^{[2
]}

Santer, Svetlana ^{[1
]}

机构：

[1] Univ Potsdam, Inst Phys & Astron, D-14476 Potsdam, Germany

[2] Leibniz Inst Polymer Res Dresden, D-01069 Dresden, Germany

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2018年 / 122卷 / 06期

关键词：

PHOTOSENSITIVE POLYMER-FILMS; SURFACE-RELIEF GRATINGS; PHOTOINDUCED DEFORMATION; MASS-TRANSPORT; AZO-POLYMERS; THIN-FILMS; PHOTOISOMERIZATION; TOPOLOGIES; ELASTOMERS; MODEL;

D O I：

10.1021/acs.jpcb.7b11644

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report on light-induced deformation of colloidal spheres consisting of azobenzene-containing polymers. The colloids of the size between 60 nm and 2 mu m in diameter were drop casted on a glass surface and irradiated with linearly polarized light. It was found that colloidal particles can be deformed up to ca. 6 times of their initial diameter. The maximum degree of deformation depends on the irradiation wavelength and intensity, as well as on colloidal particles size. On the basis of recently proposed theory by Toshchevikov et al. [J. Phys. Chem. Lett. 2017, 8, 1094], we calculated the optomechanical stresses (ca. 100 MPa) needed for such giant deformations and compared them with the experimental results.

引用

页码：2001 / 2009

页数：9

共 17 条

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