Hou Ke, Ali Wajid, Lv Jiawei, Guo Jun, Shi Lin, Han Bing, Wang Xiaoli, Tang Zhiyong
CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190 , People's Republic of China.
Center for Nanochemistry, Peking University , Beijing 100871 , People's Republic of China.
J Am Chem Soc. 2018 Dec 5;140(48):16446-16449. doi: 10.1021/jacs.8b10977. Epub 2018 Nov 21.
Chiral photonic crystals have been a widely investigated topic in chemistry, physics and biology. Till now, the research about chiral photonic crystals has been conducted on the objects of helical structures, while the chiral photonic crystals made of periodic chiral media remain unexplored experimentally. In this work, we have successfully constructed three-dimensional chiral polymer inverse opal photonic crystals (3D CPIOPCs) by a template-based method. Impressively, the 3D CPIOPCs exhibit emerging circular dichroism responses near the photonic band gaps. The experiments and calculations clearly elucidate the contribution of photonic structures and chiral media to this characteristic optical activity.
手性光子晶体一直是化学、物理和生物学领域广泛研究的课题。到目前为止，关于手性光子晶体的研究都是以螺旋结构为对象进行的，而由周期性手性介质制成的手性光子晶体在实验上仍未得到探索。在这项工作中，我们通过一种基于模板的方法成功构建了三维手性聚合物反蛋白石光子晶体（3D CPIOPC）。令人印象深刻的是，3D CPIOPC在光子带隙附近表现出新出现的圆二色性响应。实验和计算清楚地阐明了光子结构和手性介质对这种特征光学活性的贡献。
