Artificial Defect Engineering in Three‐Dimensional Colloidal Photonic Crystals |
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| Authors: | Q. Yan L. Wang X. S. Zhao |
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| Affiliation: | 1. , Department of Chemical and Biomolecular Engineering, Nanoscience and Nanotechnology Initiative, National University of Singapore, 4 Engineering Drive 4, Singapore 117576 (Singapore);2. Present address: Singapore‐MIT Alliance, 50 Nanyang Avenue, Singapore 639798, School of Materials Science and Engineering, Nanyang Technological University Singapore 639798, Singapore, and Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA |
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| Abstract: | Artificial defect engineering in 3D colloidal photonic crystals is of paramount importance in terms of device applications. Over the past few years, we have carried out a great deal of research on introducing artificial defects, including point, line, and planar defects, in 3D colloidal photonic crystals by using “bottom‐up” self‐assembly in combination with “top‐down” micromachining techniques. In this Feature Article, we summarize our research results regarding the engineering of artificial defects in self‐assembled 3D photonic crystals, along with other important research breakthroughs in the literature. The significant advancements in the engineering of defects as reviewed here together with the encouraging reports on the fabrication of perfect colloidal crystals without unwanted defects will collectively lead to technological applications of self‐assembled 3D photonic crystals in the near future. |
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| Keywords: | Colloidal crystals Defect engineering Inverse opals Photonic crystals |
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