Light-Steered Isotropic Semiconductor Micromotors

Chuanrui Chen; Fangzhi Mou; Leilei Xu; Shaofei Wang; Jianguo Guan; Zunpeng Feng; Quanwei Wang; Lei Kong; Wei Li; Joseph Wang; Qingjie Zhang

doi:10.1002/adma.201603374

Light-Steered Isotropic Semiconductor Micromotors

Adv Mater. 2017 Jan;29(3). doi: 10.1002/adma.201603374. Epub 2016 Oct 17.

Authors

Chuanrui Chen^{1

2}, Fangzhi Mou¹, Leilei Xu¹, Shaofei Wang¹, Jianguo Guan¹, Zunpeng Feng¹, Quanwei Wang¹, Lei Kong¹, Wei Li¹, Joseph Wang², Qingjie Zhang¹

Affiliations

¹ State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, 122 Luoshi road, Wuhan, 430070, P. R. China.
² Department of Nanoengineering, University of California, San Diego, La Jolla, CA, 92093, USA.

PMID: 27748536
DOI: 10.1002/adma.201603374

Abstract

Intelligent photoresponsive isotropic semiconductor micromotors are developed by taking advantage of the limited penetration depth of light to induce asymmetrical surface chemical reactions. Independent of the Brownian motion of themselves, the as-proposed isotropic micromotors are able to continuously move with both motion direction and speed just controlled by light, as well as precisely manipulate particles for nanoengineering.

Keywords: diffusiophoresis; isotropic; micromotors; phototaxis; semiconductors.