材料科学
带隙
金属
光电导性
价(化学)
八面体
金属有机骨架
结晶学
化学
光电子学
晶体结构
物理化学
冶金
有机化学
吸附
作者
James Nyakuchena,Sarah Ostresh,Jens Neu,Daniel Streater,Claire C. Cody,Reagan Hooper,Xiaoyi Zhang,Benjamin Reinhart,Gary W. Brudvig,Jier Huang
标识
DOI:10.1021/acs.jpclett.3c00499
摘要
We report a systematic study on the correlation of the metal nodes in M-THQ conducting MOFs (M = Fe, Ni, Cu, and Zn; THQ = tetra-hydroxybenzoquinone) with their structure, photophysical property, and photoconductivity. We found that the structural preference in these MOFs is controlled by metal node identity where Cu prefers a square planar coordination which leads to a 2D Kagome-type structure. Fe, Ni, and Zn prefer an octahedral sphere which leads to a 3D structure. Fe-THQ has the smallest band gap and highest photoconduction as well as a long-lived ligand-to-metal charge transfer state due to the mixed valence state revealed by time-resolved optical and X-ray absorption and terahertz spectroscopy. These results demonstrate the importance of the metal node in tuning the photophysical and photocatalytic properties of MOFs.
科研通智能强力驱动
Strongly Powered by AbleSci AI