Resonance Raman studies of excited state structural displacements of conjugated polymers in donor/acceptor charge transfer complexes

2012 ◽  
Vol 14 (32) ◽  
pp. 11273 ◽  
Author(s):  
Adam J. Wise ◽  
John K. Grey
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Conjugated Polymers ◽  
Resonance Raman ◽  
Charge Transfer Complexes ◽  
Donor Acceptor

scholarly journals Conjugated Polymer Donor-Molecular Acceptor Nanohybrids for Photocatalytic Hydrogen Evolution

2019 ◽  
Author(s):  
Haofan Yang ◽  
Xiaobo Li ◽  
Reiner Sebastian Sprick ◽  
Andrew I. Cooper
Keyword(s):  
Photocatalytic Activity ◽  
Charge Transfer ◽  
Conjugated Polymers ◽  
Hydrogen Evolution ◽  
Conjugated Polymer ◽  
Apparent Quantum Yield ◽  
High Hydrogen ◽  
Photocatalytic Hydrogen Evolution ◽  
Efficient Charge ◽  
Donor Acceptor

A library of 237 organic binary/ternary nanohybrids consisting of conjugated polymers donors and both fullerene and non-fullerene molecular acceptors was prepared and screened for sacrificial photocatalytic hydrogen evolution. These donor-acceptor nanohybrids (DANHs) showed significantly enhanced hydrogen evolution rates compared with the parent donor or acceptor compounds. DANHs of <a></a><a>a polycarbazole</a>-based donor combined with a methanofullerene acceptor (PCDTBT/PC<sub>60</sub>BM) showed a high hydrogen evolution rate of 105.2 mmol g<sup>-1</sup> h<sup>-1</sup> under visible light (λ > 420 nm). This DANH photocatalyst produced 5.9 times more hydrogen than a sulfone-containing polymer (P10) under the same conditions, which is one of the most efficient organic photocatalysts reported so far. An apparent quantum yield of hydrogen evolution of 3.0 % at 595 nm was measured for this DANH. The photocatalytic activity of the DANHs, which in optimized cases reached 179.0 mmol g<sup>-1</sup> h<sup>-1</sup>, is attributed to efficient charge transfer at the polymer donor/molecular acceptor interface. We also show that ternary donor<sub>A</sub>-donor<sub>B</sub>-acceptor nanohybrids can give higher activities than binary donor-acceptor hybrids in some cases.

Crystal growth and characterization of solvated organic charge-transfer complexes built on TTF and 9-dicyanomethylenefluorene derivatives

CrystEngComm ◽  
2015 ◽  
Vol 17 (32) ◽  
pp. 6227-6235 ◽  
Author(s):  
Amparo Salmerón-Valverde ◽  
Sylvain Bernès
Keyword(s):  
Charge Transfer ◽  
Crystal Growth ◽  
Charge Transfer Complexes ◽  
Organic Complexes ◽  
Donor Acceptor ◽  
Degree Of Charge Transfer

A series of solvated donor–acceptor organic complexes were shown to slowly release the lattice solvent while the degree of charge transfer decreases steadily. This behavior is not observed in the case of a hydrate.

scholarly journals PAH/PAH(CF 3 ) n Donor/Acceptor Charge‐Transfer Complexes in Solution and in Solid‐State Co‐Crystals

2019 ◽  
Vol 25 (59) ◽  
pp. 13547-13565 ◽  
Author(s):  
Karlee P. Castro ◽  
Eric V. Bukovsky ◽  
Igor V. Kuvychko ◽  
Nicholas J. DeWeerd ◽  
Yu‐Sheng Chen ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Solid State ◽  
Charge Transfer Complexes ◽  
Donor Acceptor

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

Charge Transfer Complexes of Aromatic Nitrocompounds with Disubstituted Naphthalenes. I.Spectroscopic Investigation of the Donor Behaviour of the 2,6- and 23-Dimethylnaphthalene

1984 ◽  
Vol 39 (12) ◽  
pp. 1274-1278 ◽  
Author(s):  
M. H. Abdel-Kader ◽  
R. M. Issa ◽  
M. M. Ayad ◽  
M. S. Abdel-Mottaleb
Keyword(s):  
Charge Transfer ◽  
Spectral Characteristics ◽  
Charge Transfer Complexes ◽  
Element Analysis ◽  
H Nmr ◽  
Aromatic Nitrocompounds ◽  
Donor Acceptor ◽  
The Difference ◽  
Donor Behaviour ◽  
Ct Complexes

The charge transfer complexes of 2,3- (I) and 2,6-Dimethylnaphthalenes (II) as electron donors with tri- and di-nitrobenzenes as electron acceptors are prepared and investigated by element analysis, IR. 1H nmr and electronic absorption spectroscopy. The results showed that I yields CT complexes of 1:1 type only while II is capable of forming 1 : 1 and 1 : 2 (donor: acceptor) compounds. The spectral characteristics of the CT complexes are pointed out and discussed. The difference in the donor behaviour between I and II is explained in the light of PPP-MO calculations.

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 Fermi level pinned molecular donor/acceptor junctions: reduction of induced carrier density by interfacial charge transfer complexes

2020 ◽  
Vol 8 (43) ◽  
pp. 15199-15207
Author(s):  
Paul Beyer ◽  
Eduard Meister ◽  
Timo Florian ◽  
Alexander Generalov ◽  
Wolfgang Brütting ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Fermi Level ◽  
Carrier Density ◽  
Charge Transfer Complex ◽  
Charge Transfer Complexes ◽  
Interfacial Charge Transfer ◽  
Fermi Level Pinning ◽  
Donor Acceptor ◽  
Interfacial Charge

Charge transfer complex (CPX) formation at a donor–acceptor interface reduces the amount of Fermi-level pinning induced interfacial charge transfer.

scholarly journals Design principles for the energy level tuning in donor/acceptor conjugated polymers

2019 ◽  
Vol 21 (2) ◽  
pp. 789-799 ◽  
Author(s):  
Daniel Hashemi ◽  
Xiao Ma ◽  
Ramin Ansari ◽  
Jinsang Kim ◽  
John Kieffer
Keyword(s):  
Charge Transfer ◽  
Energy Level ◽  
Conjugated Polymers ◽  
Transfer Process ◽  
Design Principles ◽  
Charge Transfer Process ◽  
Frontier Orbitals ◽  
Donor Acceptor ◽  
Homo And Lumo

Illustration of the charge transfer associated with the development of HOMO and LUMO levels in conjugated polymers and that the electron donating and withdrawing powers depend on the collective of atoms that carry the frontier orbitals involved in the charge transfer process.

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