Metal ion-responsive photonic colloidal crystalline micro-beads with electrochemically tunable photonic diffraction colours
文献类型：期刊论文
| 作者 | Du, Xuemin; Chiu, Sharon Hiu-Man; Ong, Daniel Hock-Chun; Vellaisamy, Roy; Lam, Michael Hon-Wah |
| 刊名 | Sensors and Actuators B: Chemical
 |
| 出版日期 | 2016 |
| 英文摘要 | This work reports a metal ion-responsive photonic colloidal crystalline (PCC) microspheric material and the convenient, reversible switching of itsphotonic diffraction properties by the redox reaction of copper in a simple electrochemical cell. The PCC micro-beads were fabricated from the orderly three-dimensional packing of core-shell nanoparticles with hydrogel coatings laden with anionic phosphate functionalities. Electrostatic binding of metalcations by the hydrogel coating lowered its internal osmotic pressure and caused shrinkage of the core-shell nanoparticles. This brought about a blue-shift of the photonic diffraction) lambda(max) of the micro-beads. The maximum shift, from 650 to 590 nm (colour change from magenta to green) was found to be produced by Cu2+ at a concentration of 1 mM. A simple electrochemical photonic device was constructed by sandwiching a suspension of the photonic micro-beads in 1 mM Cu2' solution between two transparent ITO-glass electrodes. Photonic diffraction colour of the microbeads was reversibly switched via the electrochemical reduction/oxidation of Cu2+ inside the device. The colour change can be observed by naked eyes under ambient light. This concept of rapid electrochemical regulation of photonic diffraction colour of PCC micro-beads may be useful in reflective displays applications. |
| 收录类别 | SCI |
| 原文出处 | http://www.sciencedirect.com/science/article/pii/S092540051530424X |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/10435]  |
| 专题 | 深圳先进技术研究院_医工所 |
| 作者单位 | Sensors and Actuators B: Chemical |
| 推荐引用方式 GB/T 7714 | Du, Xuemin,Chiu, Sharon Hiu-Man,Ong, Daniel Hock-Chun,et al. Metal ion-responsive photonic colloidal crystalline micro-beads with electrochemically tunable photonic diffraction colours[J]. Sensors and Actuators B: Chemical,2016. |
| APA | Du, Xuemin,Chiu, Sharon Hiu-Man,Ong, Daniel Hock-Chun,Vellaisamy, Roy,&Lam, Michael Hon-Wah.(2016).Metal ion-responsive photonic colloidal crystalline micro-beads with electrochemically tunable photonic diffraction colours.Sensors and Actuators B: Chemical. |
| MLA | Du, Xuemin,et al."Metal ion-responsive photonic colloidal crystalline micro-beads with electrochemically tunable photonic diffraction colours".Sensors and Actuators B: Chemical (2016). |
入库方式： OAI收割
来源：深圳先进技术研究院
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