P4VP and oligo(phenylenevinylene)-perylenebisimide mixed donor-acceptor supramolecular comb polymer complexes with improved charge carrier mobility

2016 ◽  
Vol 54 (15) ◽  
pp. 2403-2412 ◽  
Author(s):  
B. Saibal ◽  
S. Chithiravel ◽  
S. K. Asha
Keyword(s):  
Charge Carrier ◽  
Carrier Mobility ◽  
Charge Carrier Mobility ◽  
Polymer Complexes ◽  
Donor Acceptor ◽  
Comb Polymer

Charge Dynamics at Heterojunction between Face-on/Edge-on PCPDTBT and PCBM Bilayer: Interplay of Donor/Acceptor Distance and Local Charge Carrier Mobility

2016 ◽  
Vol 120 (32) ◽  
pp. 17887-17897 ◽  
Author(s):  
Yoshiki Shimata ◽  
Marina Ide ◽  
Motomichi Tashiro ◽  
Michio Katouda ◽  
Yutaka Imamura ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Carrier Mobility ◽  
Charge Carrier Mobility ◽  
Charge Dynamics ◽  
Local Charge ◽  
Donor Acceptor

High Charge Carrier Mobility, Low Band Gap Donor–Acceptor Benzothiadiazole-oligothiophene Based Polymeric Semiconductors

2012 ◽  
Vol 24 (21) ◽  
pp. 4123-4133 ◽  
Author(s):  
Boyi Fu ◽  
Jose Baltazar ◽  
Zhaokang Hu ◽  
An-Ting Chien ◽  
Satish Kumar ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Band Gap ◽  
Carrier Mobility ◽  
Charge Carrier Mobility ◽  
Low Band Gap ◽  
High Charge ◽  
Donor Acceptor ◽  
High Charge Carrier Mobility

Enabling efficient ambipolar charge carrier mobility in H-bonded heptazine-triphenylene system forming segregated donor-acceptor columnar assemblies

2021 ◽  
Author(s):  
Indu Bala ◽  
Joydip De ◽  
Santosh Prasad Gupta ◽  
Upendra Kumar Pandey ◽  
Santanu Kumar Pal
Keyword(s):  
Liquid Crystals ◽  
Charge Carrier ◽  
Carrier Mobility ◽  
Charge Carrier Mobility ◽  
Discotic Liquid Crystals ◽  
Donor Acceptor

Hydrogen (H)-bonded C3 symmetrical discotic liquid crystals (DLCs) (Hpz-Cn-TP, n = 6, 8, 9) forming segregated columnar assembly are described. The columnar architectures are formed by electronically decoupled donor (D)...

Increased charge carrier mobility and molecular packing of a solution sheared diketopyrrolopyrrole-based donor–acceptor copolymer by alkyl side chain modification

2019 ◽  
Vol 7 (12) ◽  
pp. 3665-3674 ◽  
Author(s):  
Mike Hambsch ◽  
Tim Erdmann ◽  
Annabel R. Chew ◽  
Sigrid Bernstorff ◽  
Alberto Salleo ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Carrier Mobility ◽  
Charge Carrier Mobility ◽  
Molecular Packing ◽  
Chain Extension ◽  
Side Chain ◽  
Alkyl Side Chain ◽  
Donor Acceptor

Side chain extension leads to improved charge carrier mobility in diketopyrrolopyrrole-based donor–acceptor copolymers.

Highly Segregated Lamello-Columnar Mesophase Organizations and Fast Charge Carrier Mobility in New Discotic Donor-Acceptor Triads

2015 ◽  
Vol 21 (29) ◽  
pp. 10379-10390 ◽  
Author(s):  
Ke-Qing Zhao ◽  
Ling-Ling An ◽  
Xiao-Bo Zhang ◽  
Wen-Hao Yu ◽  
Ping Hu ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Carrier Mobility ◽  
Charge Carrier Mobility ◽  
Fast Charge ◽  
Donor Acceptor

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.

scholarly journals Nanoporous and nonporous conjugated donor–acceptor polymer semiconductors for photocatalytic hydrogen production

2021 ◽  
Vol 12 ◽  
pp. 607-623
Author(s):  
Zhao-Qi Sheng ◽  
Yu-Qin Xing ◽  
Yan Chen ◽  
Guang Zhang ◽  
Shi-Yong Liu ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Electronic Properties ◽  
High Performance ◽  
Carrier Mobility ◽  
Material Design ◽  
Charge Carrier Mobility ◽  
Polymer Semiconductors ◽  
Optical And Electronic Properties ◽  
Donor Acceptor ◽  
Catalytic Mechanisms

Conjugated polymers (CPs) as photocatalysts have evoked substantial interest. Their geometries and physical (e.g., chemical and thermal stability and solubility), optical (e.g., light absorption range), and electronic properties (e.g., charge carrier mobility, redox potential, and exciton binding energy) can be easily tuned via structural design. In addition, they are of light weight (i.e., mainly composed of C, N, O, and S). To improve the photocatalytic performance of CPs and better understand the catalytic mechanisms, many strategies with respect to material design have been proposed. These include tuning the bandgap, enlarging the surface area, enabling more efficient separation of electron–hole pairs, and enhancing the charge carrier mobility. In particular, donor–acceptor (D–A) polymers were demonstrated as a promising platform to develop high-performance photocatalysts due to their easily tunable bandgaps, high charge carrier mobility, and efficient intramolecular charge transfer. In this minireview, recent advances of D–A polymers in photocatalytic hydrogen evolution are summarized with a particular focus on modulating the optical and electronic properties of CPs by varying the acceptor units. The challenges and prospects associated with D–A polymer-based photocatalysts are described as well.

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>

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