Tuning electron transfer in supramolecular nano-architectures made of fullerenes and porphyrins

Journal article


Publication Details

Author(s): Wang B, Bauroth S, Saha A, Chen M, Clark T, Lu X, Guldi DM
Journal: Nanoscale
Publication year: 2019
Volume: 11
Journal issue: 22
Pages range: 10782-10790
ISSN: 2040-3364
eISSN: 2040-3372


Abstract

The current work focuses on self-assembled nano-architectures in which metal-ligand coordination between a zinc tetraphenyl-porphyrin (ZnP) and a zinc tetrakis(4-((1,3-dithiol-2-ylidene)methyl)phenyl)-porphyrin (ZnP-TDP), as electron donors, and functionalized fullerenes (C60) featuring different conjugated pyridine substituents as electron acceptors have been designed and investigated. Stoichiometric ratios and binding constants were derived from absorption and fluorescence measurements. Important insight into the free-energy change of charge separation and recombination was obtained from differential pulse voltammetry studies. Compelling evidence for energy transfer, charge separation and recombination was obtained from femtosecond and nanosecond transient-absorption measurements in a wide temperature range. Intramolecular energy transfer is found to take place from TDP to ZnP followed by intramolecular charge transfer from ZnP to C60. Semiempirical and density-functional theory calculations were used to help understand the excited-state deactivation mechanisms.


FAU Authors / FAU Editors

Bauroth, Stefan
Sonderforschungsbereich 953/2 Synthetische Kohlenstoffallotrope
Clark, Timothy apl. Prof. Dr.
Computer-Chemie-Centrum
Guldi, Dirk Michael Prof. Dr.
Lehrstuhl für Physikalische Chemie I
Saha, Avishek
Lehrstuhl für Physikalische Chemie I
Wang, Bingzhe
Lehrstuhl für Physikalische Chemie I


External institutions with authors

Huazhong University of Science & Technology
University of Science and Technology of China (USTC)


How to cite

APA:
Wang, B., Bauroth, S., Saha, A., Chen, M., Clark, T., Lu, X., & Guldi, D.M. (2019). Tuning electron transfer in supramolecular nano-architectures made of fullerenes and porphyrins. Nanoscale, 11(22), 10782-10790. https://dx.doi.org/10.1039/c9nr02824b

MLA:
Wang, Bingzhe, et al. "Tuning electron transfer in supramolecular nano-architectures made of fullerenes and porphyrins." Nanoscale 11.22 (2019): 10782-10790.

BibTeX: 

Last updated on 2019-25-06 at 01:08