Exciton Delocalization and Polarizability in Perylenetetracarboxylic Diimide Probed Using Electroabsorption and Fluorescence Spectroscopies DOI Creative Commons
Md. Bulu Rahman, A.B.M.O. Islam, Toshifumi Iimori

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(10), P. 2206 - 2206

Published: May 8, 2024

Perylenetetracarboxylic diimide (PTCDI) is an n-type organic semiconductor molecule that has been widely utilized in numerous applications such as photocatalysis and field-effect transistors. Polarizability dipole moment, which are inherent properties of molecules, important parameters determine their responses to external electric optical fields, physical properties, reactivity. These fundamentally for the design innovative materials. In this study, effects fields on absorption fluorescence spectra were investigated obtain PTCDI parameters. The substituted by octyl group (N,N′-Dioctyl-3,4,9,10-perylenedicarboximide) dispersed a polymethyl methacrylate (PMMA) matrix was studied work. features vibronic progression spectrum analogous those observed solution. red shift band caused Stark effect mainly presence field. Changes moment polarizability between ground Franck–Condon excited states monomer determined. shows contribution from broad at wavelengths longer than band. This ascribed excimer-like PTCDI. field spectrum, known or electrofluorescence measured. Fluorescence quenching change good agreement with electroabsorption spectrum. A larger result consistent exciton delocalization molecules state.

Language: Английский

Recent advances in rational design for high-performance potassium-ion batteries DOI
Yifan Xu, Yichen Du,

Han Chen

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(13), P. 7202 - 7298

Published: Jan. 1, 2024

The growing global energy demand necessitates the development of renewable solutions to mitigate greenhouse gas emissions and air pollution. To efficiently utilize yet intermittent sources such as solar wind power, there is a critical need for large-scale storage systems (EES) with high electrochemical performance. While lithium-ion batteries (LIBs) have been successfully used EES, surging price, coupled limited supply crucial metals like lithium cobalt, raised concerns about future sustainability. In this context, potassium-ion (PIBs) emerged promising alternatives commercial LIBs. Leveraging low cost potassium resources, abundant natural reserves, similar chemical properties potassium, PIBs exhibit excellent ion transport kinetics in electrolytes. This review starts from fundamental principles structural regulation PIBs, offering comprehensive overview their current research status. It covers cathode materials, anode electrolytes, binders, separators, combining insights full battery performance, degradation mechanisms,

Language: Английский

Citations

136
Amorphization of fused perylene diimide dimers for high-efficiency potassium-organic batteries DOI
Mengyuan Cheng, Huan Liu,

Zhuocheng Tian

et al.

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: 12(23), P. 8551 - 8560

Published: Jan. 1, 2024

A simple but efficient method to achieve stable and amorphous small-molecular carbonyls (PTCDI2) with superior rate capability enhanced longevity of potassium-ion batteries is demonstrated.

Language: Английский

Citations

2
Ti3C2Tx MXene Bonded Perylene Diimide as a Robust Charge Host for Seawater Electrolytes DOI

P. Sreelakshmi,

Soujanya H. Goudar,

S.P. Behera

et al.

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(95), P. 14069 - 14072

Published: Jan. 1, 2024

In this work, we report Ti

Language: Английский

Citations

2
Exciton Delocalization and Polarizability in Perylenetetracarboxylic Diimide Probed Using Electroabsorption and Fluorescence Spectroscopies DOI Creative Commons
Md. Bulu Rahman, A.B.M.O. Islam, Toshifumi Iimori

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(10), P. 2206 - 2206

Published: May 8, 2024

Perylenetetracarboxylic diimide (PTCDI) is an n-type organic semiconductor molecule that has been widely utilized in numerous applications such as photocatalysis and field-effect transistors. Polarizability dipole moment, which are inherent properties of molecules, important parameters determine their responses to external electric optical fields, physical properties, reactivity. These fundamentally for the design innovative materials. In this study, effects fields on absorption fluorescence spectra were investigated obtain PTCDI parameters. The substituted by octyl group (N,N′-Dioctyl-3,4,9,10-perylenedicarboximide) dispersed a polymethyl methacrylate (PMMA) matrix was studied work. features vibronic progression spectrum analogous those observed solution. red shift band caused Stark effect mainly presence field. Changes moment polarizability between ground Franck–Condon excited states monomer determined. shows contribution from broad at wavelengths longer than band. This ascribed excimer-like PTCDI. field spectrum, known or electrofluorescence measured. Fluorescence quenching change good agreement with electroabsorption spectrum. A larger result consistent exciton delocalization molecules state.

Language: Английский

Citations

1