Photoinduced electron transfer processes of (E)-9-(4-nitrostyryl)anthracene in non-polar solvent medium: generation of long-lived charge-separated states $$^{\S }$$ §
TLDR
In this article, photo-induced electron transfer (PET) dynamics between N,N-diethylaniline (DEA) and (E)-9-(4-nitrostyryl)anthracene (An-NO) was investigated.Abstract:
In the present study, photoinduced electron transfer (PET) dynamics between N,N-diethylaniline (DEA) and (E)-9-(4-nitrostyryl)anthracene (
$$\hbox {An-NO}_{2}$$
) in a non-polar solvent medium {methylcyclohexane (MCH)}, has been investigated. The rate constant of back electron transfer (
$$\hbox {k}_{{\mathrm{BET}}}$$
) for the $$\hbox {An-NO}_{2}$$
– DEA pair was $$\sim 3.8\times 10^{5}~\hbox {s}^{-1}$$
which is ca. 2 orders of magnitude less compared to the anthracene (An)-DEA (control) system. The results indicate that long-lived charge separated species can be generated using the design strategy used herein by achieving resonance stabilization of the excited state (acceptor) radical via conjugation. SYNOPSIS For N,N-diethylaniline/(E)-9-(4-nitrostyryl)anthracene donor-acceptor pair, the back electron transfer rate constant is $$\sim 2$$
orders of magnitude slower compared to N,N-diethylaniline/anthracene system. The results indicate that organic molecules with extended $$\uppi $$
-conjugation can be utilized for generating long-lived charge separated states via bimolecular PET, due to increased feasibility of charge delocalization.read more
Citations
More filters
Principles Of Fluorescence Spectroscopy
TL;DR: The principles of fluorescence spectroscopy is universally compatible with any devices to read and is available in the digital library an online access to it is set as public so you can download it instantly.
Journal ArticleDOI
Achieving ACQ-AIE modulation using isostructural organic fluorophores
TL;DR: Results from the study indicate that absence of interplay between the excited states from a dark Intramolecular Charge Transfer (ICT) state to Locally Excited state (LE) in m-AnCN is the primary reason behind the observed difference in the emission properties of the aggregates.
Journal ArticleDOI
Luminescence property switching in 1D supramolecular polymerization of organic donor–π-acceptor chromophores
TL;DR: The naphthalene monoimide building block endows with amide functionality undergoes supramolecular polymerization in a J type fashion in a particular co-solvent composition as mentioned in this paper .
Journal ArticleDOI
Effect of positional isomerism on the excited state charge transfer dynamics of anthracene-based D–π–A systems
TL;DR: In this paper , the effect of positional isomerism on the charge recombination dynamics of donor-acceptor system is studied. But the authors focus on light-emitting diode (LED) devices.
References
More filters
Book
Principles of fluorescence spectroscopy
TL;DR: This book describes the fundamental aspects of fluorescence, the biochemical applications of this methodology, and the instrumentation used in fluorescence spectroscopy.
Principles Of Fluorescence Spectroscopy
TL;DR: The principles of fluorescence spectroscopy is universally compatible with any devices to read and is available in the digital library an online access to it is set as public so you can download it instantly.
Journal ArticleDOI
Artificial Photosynthesis: Solar Splitting of Water to Hydrogen and Oxygen
Allen J. Bard,Marye Anne Fox +1 more
TL;DR: In this article, the authors focus on the photodriven conversion of liquid water to gaseous hydrogen and oxygen, a process similar to that of biological photosynthesis, using sunlight to drive a thermodynamically uphill reaction of an abundant material to produce fuel.
Journal ArticleDOI
Role of the Charge Transfer State in Organic Donor–Acceptor Solar Cells
TL;DR: The impact of increasing the CT energy-in order to raise the open circuit voltage, but lowering the kinetic excess energy of the CT complexes at the same time-on the charge photogeneration will be discussed.
Journal ArticleDOI
Examining the Effect of the Dipole Moment on Charge Separation in Donor–Acceptor Polymers for Organic Photovoltaic Applications
Bridget Carsten,Jodi M. Szarko,Hae Jung Son,Wei Wang,Luyao Lu,Feng He,Brian S. Rolczynski,Sylvia J. Lou,Lin X. Chen,Luping Yu +9 more
TL;DR: PBB3 showed a long-lived excitonic state and the slowest electron transfer dynamics of the series of polymers, as well as the fastest recombination rate of the charge-separated (CS) species, indicating that electrons and holes are more tightly bound in these species.
Related Papers (5)
Factors controlling lifetimes of photoinduced charge-separated states of fullerene-donor molecular systems
Yasuyuki Araki,Osamu Ito +1 more