Two-Step Charge Separation Passing Through the Partial Charge-Transfer State in a Molecular Dyad

2019 ◽  
Vol 142 (3) ◽  
pp. 1564-1573 ◽  
Author(s):  
Taeyeon Kim ◽  
Woojae Kim ◽  
Olena Vakuliuk ◽  
Daniel T. Gryko ◽  
Dongho Kim
Keyword(s):  
Charge Transfer ◽  
Charge Separation ◽  
Charge Transfer State ◽  
Partial Charge ◽  
Partial Charge Transfer ◽  
Transfer State

scholarly journals Unravelling a long-lived ligand-to-metal cluster charge transfer state in Ce–TCPP metal organic frameworks

2020 ◽  
Vol 56 (90) ◽  
pp. 13971-13974
Author(s):  
Sizhuo Yang ◽  
Wenhui Hu ◽  
James Nyakuchena ◽  
Christian Fiankor ◽  
Cunming Liu ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Charge Separation ◽  
Transient Absorption ◽  
Metal Cluster ◽  
Metal Organic Frameworks ◽  
Charge Transfer State ◽  
X Ray ◽  
Metal Organic ◽  
Transfer State

We report the ultrafast charge separation dynamics in porphyrin-based Ce–TCPP MOFs using optical and X-ray transient absorption (XTA) spectroscopy.

Charge separation, charge recombination, long-lived charge transfer state formation and intersystem crossing in organic electron donor/acceptor dyads

2019 ◽  
Vol 7 (39) ◽  
pp. 12048-12074 ◽  
Author(s):  
Yuqi Hou ◽  
Xue Zhang ◽  
Kepeng Chen ◽  
Dongyi Liu ◽  
Zhijia Wang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
State Formation ◽  
Charge Separation ◽  
Charge Recombination ◽  
Charge Transfer State ◽  
Intersystem Crossing ◽  
Organic Electron ◽  
Recent Developments ◽  
Donor Acceptor ◽  
Transfer State

The recent developments in charge separation, long-lived charge transfer state formation and charge recombination-induced intersystem crossing are summarized.

Mixed valency in organic charge transfer complexes

2007 ◽  
Vol 366 (1862) ◽  
pp. 139-150 ◽  
Author(s):  
Gunzi Saito ◽  
Tsuyoshi Murata
Keyword(s):  
Charge Transfer ◽  
Mixed Valence ◽  
Charge Transfer Complexes ◽  
Partial Charge ◽  
Key Factors ◽  
Partial Charge Transfer ◽  
Mixed Valency ◽  
Ionic System ◽  
Organic Metals ◽  
Transfer State

Mixed-valence (partial charge transfer state) and segregated stacking are the key factors for constructing organic metals. Here, we discuss the ionicity phase diagrams for a variety of charge transfer systems to provide a strategy for the development of functional organic materials (Mott insulator, semiconductor, superconductor, metal, complex isomer, neutral–ionic system, etc.).

The lowest-energy charge-transfer state and its role in charge separation in organic photovoltaics

2016 ◽  
Vol 18 (26) ◽  
pp. 17546-17556 ◽  
Author(s):  
Guangjun Nan ◽  
Xu Zhang ◽  
Gang Lu
Keyword(s):  
Charge Transfer ◽  
Quantum Efficiency ◽  
Charge Separation ◽  
Driving Force ◽  
Internal Quantum Efficiency ◽  
Energy Charge ◽  
Charge Transfer State ◽  
Dynamic Disorder ◽  
Configuration Entropy ◽  
Transfer State

The localized charge transfer state can lead to >90% internal quantum efficiency provided by the driving force from dynamic disorder and configuration entropy.

Long-lived photoinduced charge transfer state of synthetically affable porphyrin-fullerene dyads

2003 ◽  
Vol 07 (10) ◽  
pp. 651-666 ◽  
Author(s):  
Franz-Peter Montforts ◽  
Ivan Vlassiouk ◽  
Sergei Smirnov ◽  
Michael Wedel
Keyword(s):  
Charge Transfer ◽  
Charge Separation ◽  
Photophysical Properties ◽  
Solvent Polarity ◽  
Charge Transfer State ◽  
Displacement Current ◽  
Intramolecular Electron Transfer ◽  
High Yields ◽  
Photoinduced Charge ◽  
Transfer State

Bislactone linked porphyrin-fullerene dyads show promising photophysical properties for mimicking photosynthesis. Optical and transient displacement current investigations of the dyads demonstrate efficient intramolecular electron transfer from porphyrin to fullerene with the lifetime of the charge transfer state on the order of a few nanoseconds in low polarity solvents. Solvent polarity effect on the yield of charge separation and conformations in the charge transfer state are investigated in detail. The facile synthesis could readily be applied to constructing extended compounds with high yields of photoinduced charge separation.

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