NIR-Light-Induced Deformation of Cross-Linked Liquid-Crystal Polymers Using Upconversion Nanophosphors

详细信息    查看全文

• 作者：Wei Wu ; Liming Yao ; Tianshe Yang ; Ruoyuan Yin ; Fuyou Li ; Yanlei Yu
• 刊名：Journal of the American Chemical Society
• 出版年：2011
• 出版时间：October 12, 2011
• 年：2011
• 卷：133
• 期：40
• 页码：15810-15813
• 全文大小：784K
• 年卷期：v.133,no.40(October 12, 2011)
• ISSN：1520-5126

文摘

When upconversion nanophosphors were incorporated into an azotolane-containing cross-linked liquid-crystal polymer film, the resulting composite film generated fast bending upon exposure to continuous-wave near-IR light at 980 nm. This occurs because the upconversion luminescence of the nanophosphors leads to trans鈥揷is photoisomerization of the azotolane units and an alignment change of the mesogens. The bent film completely reverted to the initial flat state after the light source was removed.