Ghosh Sanjib, Hossain Munshi Sahid, Chatterjee Sheelbhadra, Rahaman Sk Atiur, Bandyopadhyay Subhajit
Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, Nadia 741246, India.
ACS Appl Mater Interfaces. 2020 Nov 25;12(47):52983-52991. doi: 10.1021/acsami.0c17513. Epub 2020 Nov 13.
Photo-induced modulation of electronic conductance has been achieved by employing an Ag-based two-dimensional coordination polymer (CP) having pyridine-functionalized photochromic dimethyldihydropyrene-cyclophanediene (DHP-CPD) π-switch. Both the coordination polymer and the organic photochromic core were characterized by single-crystal X-ray diffraction studies. The coordination polymer displayed an excellent conductance in the ON state of the switch in the closed form of DHP. Upon exposure to visible light, the π-switch in the CPD form loses its planarity, turning the switch OFF, which is reflected in the drastic reduction of the conductance. Exposure to UV light turns the switch back ON wherein the high electronic conductance of the polymer can be restored.
通过使用具有吡啶功能化光致变色二甲基二氢芘-环芳二烯（DHP-CPD）π开关的银基二维配位聚合物（CP），实现了光诱导的电子电导调制。配位聚合物和有机光致变色核心均通过单晶X射线衍射研究进行了表征。在DHP的闭合形式中，配位聚合物在开关的导通状态下表现出优异的电导。暴露于可见光下，CPD形式的π开关失去其平面性，使开关关闭，这反映在电导的急剧降低上。暴露于紫外光下会使开关重新打开，其中聚合物的高电子电导可以恢复。
