Electron deficient diketopyrrolopyrrole dyes for organic electronics: synthesis by direct arylation, optoelectronic characterization, and charge carrier mobility

2014 ◽  
Vol 2 (12) ◽  
pp. 4198-4207 ◽  
Author(s):  
Arthur D. Hendsbee ◽  
Jon-Paul Sun ◽  
Lesley R. Rutledge ◽  
Ian G. Hill ◽  
Gregory C. Welch
Keyword(s):  
Charge Carrier ◽  
Small Molecules ◽  
Organic Electronics ◽  
Carrier Mobility ◽  
Charge Carrier Mobility ◽  
Direct Arylation ◽  
Microwave Assisted

Four electron deficient small molecules based on the diketopyrrolopyrrole (DPP) chromophore were synthesized using microwave-assisted direct arylation reactivity.

On the relations between backbone thiophene functionalization and charge carrier mobility of A–D–A type small molecules

2020 ◽  
Vol 44 (35) ◽  
pp. 15177-15185
Author(s):  
Chunlin Xu ◽  
Xiaoping Xu ◽  
Shaohui Zheng
Keyword(s):  
Charge Carrier ◽  
Small Molecules ◽  
Carrier Mobility ◽  
Charge Carrier Mobility

Backbone thiophene functionalization: an efficient way to improve the charge carrier mobility of A–D–A type small molecules.

Significance of secondary forces toward improving the charge carrier mobility of Isoindigo based conjugated small molecules

2021 ◽  
pp. 138621
Author(s):  
Satej S Dharmapurikar ◽  
Arulraj Arul Kashmir ◽  
Tanya Kumari ◽  
Virbhadra Kalalawe ◽  
Maruti Kanetkar ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Small Molecules ◽  
Carrier Mobility ◽  
Charge Carrier Mobility

Charge carrier mobility in one-dimensional aligned π-stacks of conjugated small molecules with a benzothiadiazole central unit

2017 ◽  
Vol 19 (12) ◽  
pp. 8330-8339 ◽  
Author(s):  
Deyan Raychev ◽  
Olga Guskova
Keyword(s):  
Charge Carrier ◽  
Small Molecules ◽  
Carrier Mobility ◽  
Charge Carrier Mobility ◽  
Charge Carriers ◽  
Central Unit ◽  
Dft Methods ◽  
Crystalline Materials ◽  
One Dimensional ◽  
Mobility Of Charge Carriers

The hopping mobility of charge carriers in organic crystalline materials consisting of benzothiadiazole-cored molecules with thiophene or furan flanks was analyzed using DFT methods.

Co-assembly of functionalized donor–acceptor molecules within block copolymer microdomains via the supramolecular assembly approach with an improved charge carrier mobility

Soft Matter ◽  
2020 ◽  
Vol 16 (31) ◽  
pp. 7312-7322
Author(s):  
Krishnan Deepthi ◽  
Amal Raj R B ◽  
Vadakkethonippurathu Sivankuttynair Prasad ◽  
E. Bhoje Gowd
Keyword(s):  
Block Copolymer ◽  
Charge Carrier ◽  
Small Molecules ◽  
Self Assembly ◽  
Carrier Mobility ◽  
Supramolecular Assembly ◽  
Charge Carrier Mobility ◽  
Donor And Acceptor ◽  
Donor Acceptor ◽  
Acceptor Molecules

Here, we demonstrate the three-component self-assembly of functionalized small molecules (donor and acceptor) and a polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) block copolymer using the supramolecular approach.

The Influence of Nitrogen Position on Charge Carrier Mobility in Enantiopure Aza[6]helicene Crystals

2018 ◽  
Author(s):  
Francesco Salerno ◽  
Beth Rice ◽  
Julia Schmidt ◽  
Matthew J. Fuchter ◽  
Jenny Nelson ◽  
...  
Keyword(s):  
Solid State ◽  
Charge Carrier ◽  
Carrier Mobility ◽  
Chemical Structure ◽  
Crystal Packing ◽  
Charge Carrier Mobility ◽  
Individual Factor ◽  
Charge Mobility ◽  
Order Of Magnitude ◽  
Small Change

<p>The properties of an organic semiconductor are dependent on both the chemical structure of the molecule involved, and how it is arranged in the solid-state. It is challenging to extract the influence of each individual factor, as small changes in the molecular structure often dramatically change the crystal packing and hence solid-state structure. Here, we use calculations to explore the influence of the nitrogen position on the charge mobility of a chiral organic molecule when the crystal packing is kept constant. The transfer integrals for a series of enantiopure aza[6]helicene crystals sharing the same packing were analysed in order to identify the best supramolecular motifs to promote charge carrier mobility. The regioisomers considered differ only in the positioning of the nitrogen atom in the aromatic scaffold. The simulations showed that even this small change in the chemical structure has a strong effect on the charge transport in the crystal, leading to differences in charge mobility of up to one order of magnitude. Some aza[6]helicene isomers that were packed interlocked with each other showed high HOMO-HOMO integrals (up to 70 meV), whilst molecules arranged with translational symmetry generally afforded the highest LUMO-LUMO integrals (40 - 70 meV). As many of the results are not intuitively obvious, a computational approach provides additional insight into the design of new semiconducting organic materials.</p>

Assembly effect on the charge carrier mobility in quaterthiophene-based n/p-materials

2019 ◽  
Vol 7 (22) ◽  
pp. 6649-6655
Author(s):  
A. López-Andarias ◽  
C. Atienza ◽  
J. López-Andarias ◽  
W. Matsuda ◽  
T. Sakurai ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Self Assembly ◽  
Carrier Mobility ◽  
Charge Carrier Mobility ◽  
Assembly Process ◽  
Charge Mobility

Effect of the peptide-based quaterthiophene self-assembly process on the charge mobility properties of the n/p-materials formed is studied.

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