Optical Control of Directional Exciton Migration in Porphyrin‐Based Metal−Organic Frameworks-Reference-Cited by-同舟云学术

Optical Control of Directional Exciton Migration in Porphyrin‐Based Metal−Organic Frameworks

Published:2024-05-16 Issue:19 Volume:12 Page:
ISSN:2195-1071
Container-title:Advanced Optical Materials
language:en
Short-container-title:Advanced Optical Materials

Author:

Yu Junhong¹²,Han Yadong¹²,Yang Yunfan¹,Zhang Hang¹²,Fang Siyu³,Wang Zhengbang³,Hu Jianbo¹²^ORCID

Affiliation:

1. Laboratory for Shock Wave and Detonation Physics Institute of Fluid Physics China Academy of Engineering Physics Mianyang 621900 China

2. State Key Laboratory for Environment‐Friendly Energy Materials Southwest University of Science and Technology Mianyang 621010 China

3. Key Laboratory for the Green Preparation and Application of Functional Materials Ministry of Education Hubei Key Laboratory of Polymer Materials School of Materials Science and Engineering Hubei University Wuhan 430062 China

Abstract

AbstractPorphyrin‐based metal‐organic frameworks (MOFs) have received great attention for solar photochemistry applications. Manipulating the direction of energy (exciton) migration plays an essential role in boosting the light‐harvesting efficiency of porphyrin‐based MOFs. Here, based on the time‐dependent exciton‐exciton annihilation rate, an optical control of directional exciton migration is demonstrated in cobalt‐porphyrin surface‐supported MOF nanofilms (Co‐TCPP SURMOFs). Utilizing photocarrier densities or lattice temperature as the control knob, the dynamic form of exciton migration in Co‐TCPP SURMOFs can be switched between the nearest‐neighbor 1D interaction and the quasi‐isotropic 2D interaction, which is well explained using a diffusion model of exciton‐exciton scattering. This results provide an optical approach to regulating exciton migration in MOFs, which enhances understanding of the excitonic behavior in artificial light harvesters.

Funder

Southwest University of Science and Technology

National Natural Science Foundation of China

Science Challenge Project

Publisher

Wiley

Link

https://onlinelibrary.wiley.com/doi/pdf/10.1002/adom.202400285

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