Subpicosecond Transient Absorption of Donor−Acceptor Biphenyls. Intramolecular Control of the Excited State Charge Transfer Processes by a Weak Electronic Coupling

1998 ◽  
Vol 102 (38) ◽  
pp. 7393-7405 ◽  
Author(s):  
Michael Maus ◽  
Wolfgang Rettig ◽  
Gediminas Jonusauskas ◽  
René Lapouyade ◽  
Claude Rullière
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Transient Absorption ◽  
Electronic Coupling ◽  
Transfer Processes ◽  
Donor Acceptor ◽  
State Charge

Bending-Type Electron Donor–Donor–Acceptor Triad: Dual Excited-State Charge-Transfer Coupled Structural Relaxation

2019 ◽  
Vol 31 (15) ◽  
pp. 5981-5992 ◽  
Author(s):  
Jia-An Lin ◽  
Shu-Wei Li ◽  
Zong-Ying Liu ◽  
Deng-Gao Chen ◽  
Chun-Ying Huang ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Electron Donor ◽  
Structural Relaxation ◽  
Donor Acceptor ◽  
State Charge

scholarly journals Excited‐State Charge Transfer in Covalently Functionalized MoS 2 with a Zinc Phthalocyanine Donor–Acceptor Hybrid

2019 ◽  
Vol 131 (17) ◽  
pp. 5768-5773 ◽  
Author(s):  
Ruben Canton‐Vitoria ◽  
Habtom B. Gobeze ◽  
Vicente M. Blas‐Ferrando ◽  
Javier Ortiz ◽  
Youngwoo Jang ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Zinc Phthalocyanine ◽  
Donor Acceptor ◽  
State Charge

scholarly journals Excited‐State Charge Transfer in Covalently Functionalized MoS 2 with a Zinc Phthalocyanine Donor–Acceptor Hybrid

2019 ◽  
Vol 58 (17) ◽  
pp. 5712-5717 ◽  
Author(s):  
Ruben Canton‐Vitoria ◽  
Habtom B. Gobeze ◽  
Vicente M. Blas‐Ferrando ◽  
Javier Ortiz ◽  
Youngwoo Jang ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Zinc Phthalocyanine ◽  
Donor Acceptor ◽  
State Charge

scholarly journals Interplay of Direct and Indirect Charge Transfer Pathways in Donor-Bridge-Acceptor Systems

2019 ◽  
Author(s):  
Junjie Liu ◽  
Dvira Segal
Keyword(s):  
Charge Transfer ◽  
Quantum Interference ◽  
Transport Processes ◽  
Electronic Coupling ◽  
Transfer Processes ◽  
Quantum Interference Effect ◽  
Donor Acceptor ◽  
Charge Transfer Dynamics ◽  
Reduced Density ◽  
Coherent Part

Charge transfer in donor-bridge-acceptor (DBA) structures typically takes place through the combination of donor-bridge and bridge-acceptor overlap integrals forming an effective, indirect electronic coupling between the donor (D) and acceptor (A) moieties. Here, we examine the effects of an additional direct DA electronic coupling on charge transfer processes in DBA systems with local interaction to thermal baths. First, using the exact Nakajima-Zwanzig master equation (NZME) for the reduced density matrix, we rigorously define probability currents as the coherent part of the NZME, thereby allowing us to quantify the contribution of the different electronic pathways (direct and indirect) to the charge transfer dynamics. Focusing on two minimal DBA systems of three sites (V and L models), and adopting well-developed methods, we find that the interplay between different transfer pathways can be assessed by the McConnell formula in the weak systembath coupling regime. We then demonstrate that the combination of indirect and direct donor-acceptor coupling either enhances or leads to a destructive quantum interference effect on charge transport processes, depending on the energy landscape of the DBA system.<br>

scholarly journals Intermolecular and Intramolecular Excited State Charge Transfer

1983 ◽  
Vol 3 (1-6) ◽  
pp. 145-162 ◽  
Author(s):  
Kenneth B. Eisenthal
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Transient Absorption ◽  
Chemical Change ◽  
Picosecond Laser ◽  
Excited Molecule ◽  
Charge Transfer Dynamics ◽  
A Charge ◽  
Excited State Dipole Moment ◽  
State Charge

A primary mechanism of energy relaxation and chemical change in organic molecules in excited electronic states is charge transfer. 1 The charge transfer process can be intermolecular, involving an excited molecule and a neighboring molecule, one serving as an acceptor and the other as a donor molecule, or intramolecular, involving a charge redistribution in the excited molecule which produces a very large excited state dipole moment.In our investigations of the dynamics of these various charge transfer processes, a picosecond laser pulse was used to excite the molecules of interest. The charge transfer dynamics were monitored by a variety of techniques, including transient absorption of the excited charge transfer complex (exciplex) or ion radicals by a time delayed picosecond pulse, and fluorescence from the exciplex and from the initially excited molecule using a picosecond streak camera for detection.

scholarly journals Electronic couplings and rates of excited state charge transfer processes at poly(thiophene-co-quinoxaline)–PC71BM interfaces: two- versus multi-state treatments

2019 ◽  
Vol 21 (46) ◽  
pp. 25606-25625
Author(s):  
Tuuva Kastinen ◽  
Demetrio Antonio da Silva Filho ◽  
Lassi Paunonen ◽  
Mathieu Linares ◽  
Luiz Antonio Ribeiro Junior ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Long Range ◽  
Transfer Processes ◽  
State Charge

Multi-state effects should be considered when calculating electronic couplings at local polymer–fullerene interfaces with the non-tuned and optimally tuned long-range corrected functionals.

Modulating absorption and charge transfer in bodipy-carbazole donor–acceptor dyads through molecular design

2019 ◽  
Vol 48 (23) ◽  
pp. 8488-8501 ◽  
Author(s):  
John Strahan ◽  
Bhooshan C. Popere ◽  
Piyachai Khomein ◽  
Craig A. Pointer ◽  
Shea M. Martin ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Absorption Spectroscopy ◽  
Transient Absorption ◽  
Molecular Design ◽  
Transient Absorption Spectroscopy ◽  
Excited State Dynamics ◽  
Donor Acceptor

Bodipy-based donor–acceptor dyads were evaluated using transient absorption spectroscopy to reveal the influence of beta vs. meso substitution on excited-state dynamics.

Influence of the Excited-State Charge-Transfer Character on the Exciton Dissociation in Donor–Acceptor Copolymers

2013 ◽  
Vol 118 (1) ◽  
pp. 27-36 ◽  
Author(s):  
Katharina Neumann ◽  
Christian Schwarz ◽  
Anna Köhler ◽  
Mukundan Thelakkat
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Exciton Dissociation ◽  
Donor Acceptor ◽  
State Charge
Sign in / Sign up

Export Citation Format

Share Document