NIR-light-induced deformation of cross-linked liquid-crystal polymers using upconversion nanophosphors.
摘要：
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-cis 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.
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DOI：
10.1021/ja2043276
被引量：
年份：
2011
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