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您的检索式：作者名="Colin JLambert"
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| 1 | Room-Temperature Single-Molecule Conductance Switch via Confined Coordination-Induced Spin-State Manipulation显示文摘The emergence of molecular spintronics offers a unique chance for the design of molecular devices with different spin-states,and the control of spin-state becomes essential for molecular spin switches.However,the intrinsic spin switching from low-to high-spin state is a temperature-dependent process with a small energy barrier where low temperature is required to maintain the low-spin state.Thus,the room-temperature operation of single-molecule devices has not yet been achieved.Herein,we present a reversible single-molecule conductance switch by manipulating the spin states of the molecule at room temperature using the scanning tunneling microscope break-junction(STM-BJ)technique.The manipulation of the spin states between S=0 and S=1 is achieved by complexing or decomplexing the pyridine derivative molecule with a square planar nickel(Ⅱ)porphyrin.The bias-dependent conductance evolution proves that the strong electric field between the nanoelectrodes plays a crucial role in the coordination reaction.The density functional theory(DFT)calculations further reveal that the conductance changes come from the geometric changes of the porphyrin ring and spin-state switching of the Ni(Ⅱ)ion.Our work provides a new avenue to investigate room-temperature spin-related sensors and molecular spintronics. | Jing Li Qingqing Wu Wei Xu Hai-Chuan Wang Hewei Zhang Yaorong Chen Yongxiang Tang Songjun Hou Colin JLambert Wenjing Hong | 2022 | CCS Chemistry2022，4，4： | 0 |
| 2 | 基于溶剂-分子作用的单分子结电输运性质调控显示文摘为了探究溶剂-分子相互作用对单分子电输运性质的影响,本文利用机械可控裂结技术对一系列分子在不同溶剂环境下进行了单分子电导测试.结果发现,在改变溶剂极性的条件下,这些分子的单分子电导可以发生接近一个数量级的变化.进一步研究发现溶剂对单分子电导的调控效果依赖于分子锚定基团的选择.理论计算证明极性溶剂可以影响分子轨道能级,且影响效率取决于锚定基团与电极的耦合强度.对于弱耦合的分子结,极性溶剂与分子相互作用可以减小分子轨道与电极费米的能级差,且相较于强耦合的分子结具有更显著的调控效果.本研究说明溶剂-分子相互作用可以显著地影响单分子电导. | 唐政 侯嵩军 吴清清 谭志冰 郑珏婷 李瑞豪 刘俊扬 杨扬 Hatef Sadeghi 师佳 Iain Grace Colin JLambert 洪文晶 | 2020 | Science Bulletin2020，65，11： | 0 |
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