Electron Transfer and Charge Separation in Clusters

As an alternative to conventional charge-separation functional molecular models based on multi-step long-range electron transfer (ET) within redox cascades, simple donor-acceptor dyads have been developed to attain a long-lived and high-energy charge-separated (CS) state without significant loss of excitation energy. In particular, a simple molecular electron donor-acceptor dyad, 9-mesityl-10-methylacridinium ion (Acr+-Mes), is capable of fast charge separation but extremely slow charge recombination. Such a simple molecular dyad has significant advantages with regard to synthetic feasibility, providing a variety of applications for photoinduced ET catalytic systems, including efficient photocatalytic systems for the solar energy conversion and construction of organic solar cells.

Download Full-text

How can infra-red excitation both accelerate and slow charge transfer in the same molecule?

Chemical Science ◽

10.1039/c8sc00092a ◽

2018 ◽

Vol 9 (30) ◽

pp. 6395-6405 ◽

Cited By ~ 8

Author(s):

Zheng Ma ◽

Zhiwei Lin ◽

Candace M. Lawrence ◽

Igor V. Rubtsov ◽

Panayiotis Antoniou ◽

...

Keyword(s):

Electron Transfer ◽

Charge Transfer ◽

Charge Separation ◽

Charge Recombination ◽

Recombination Rates ◽

Infra Red ◽

Induced Changes

A UV-IR-Vis 3-pulse study of infra-red induced changes to electron transfer (ET) rates in a donor–bridge–acceptor species finds that charge-separation rates are slowed, while charge-recombination rates are accelerated as a result of IR excitation during the reaction.

Download Full-text

Surface polaron states on single-crystal rutile TiO2 nanorod arrays enhancing charge separation and transfer

Dalton Transactions ◽

10.1039/d0dt03068f ◽

2020 ◽

Vol 49 (42) ◽

pp. 15054-15060

Author(s):

Qimeng Yang ◽

Heng Zhu ◽

Yanghui Hou ◽

Duanduan Liu ◽

Huang Tang ◽

...

Keyword(s):

Electron Transfer ◽

Single Crystal ◽

Charge Separation ◽

Nanorod Arrays ◽

Rutile Tio2 ◽

Electron Transfer Pathway ◽

Tio2 Nanorod ◽

Electrolyte Interface ◽

Tio2 Nanorod Arrays

Polaron states on single-crystal TiO2 photoanodes provide an important electron transfer pathway at the electrode–electrolyte interface.

Download Full-text

Hypsochromic solvent shift of the charge separation band in ionic donor–acceptor Li+@C60⊂[10]CPP

Chemical Communications ◽

10.1039/c9cc05787k ◽

2019 ◽

Vol 55 (75) ◽

pp. 11195-11198 ◽

Cited By ~ 3

Author(s):

Anton J. Stasyuk ◽

Olga A. Stasyuk ◽

Miquel Solà ◽

Alexander A. Voityuk

Keyword(s):

Electron Transfer ◽

Charge Separation ◽

Photoinduced Electron Transfer ◽

Blue Shift ◽

Polar Medium ◽

Solvent Shift ◽

Donor Acceptor

Photoinduced electron transfer in CPP-based donor–acceptor complexes C60⊂[10]CPP and Li+@C60⊂[10]CPP was studied using DFT/TDDFT. Unusual blue shift of charge separated states for Li+@C60⊂[10]CPP complexes in the polar medium is predicted.

Download Full-text