The backbone rigidity and its influence on the morphology and charge mobility of FBT based conjugated polymers

2015 ◽  
Vol 6 (8) ◽  
pp. 1309-1315 ◽  
Author(s):  
Kuan-Yi Wu ◽  
Chun-Chieh Chiu ◽  
Wei-Tsung Chuang ◽  
Chien-Lung Wang ◽  
Chain-Shu Hsu
Keyword(s):  
Solid State ◽  
Conjugated Polymers ◽  
Side Chain ◽  
Charge Mobility

Modulation of the backbone rigidity via proper side chain placement and vinylene group incorporation allowed optimization of solid-state order and OFET performances.

Fine-tuning solid state packing and significantly improving photovoltaic performance of conjugated polymers through side chain engineering via random polymerization

2017 ◽  
Vol 5 (11) ◽  
pp. 5585-5593 ◽  
Author(s):  
Xinlong Wang ◽  
Wei Deng ◽  
Yusheng Chen ◽  
Xiaofeng Wang ◽  
Pan Ye ◽  
...  
Keyword(s):  
Solid State ◽  
Conjugated Polymers ◽  
Photovoltaic Performance ◽  
Fine Tuning ◽  
Side Chain

A series of random conjugated polymers' solid state packing and photovoltaic performances were systematically tuned upon simply varying the ratio of side chain and afforded PCE 10.3%.

Charge mobility enhancement for diketopyrrolopyrrole-based conjugated polymers by partial replacement of branching alkyl chains with linear ones

2017 ◽  
Vol 1 (12) ◽  
pp. 2547-2553 ◽  
Author(s):  
Jing Ma ◽  
Zitong Liu ◽  
Zhijie Wang ◽  
Yizhou Yang ◽  
Guanxin Zhang ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Partial Replacement ◽  
Side Chain ◽  
Charge Mobility ◽  
Alkyl Chains

Side-chain engineering of three new conjugated D–A terpolymers by varying the number of branching and linear alkyl chains is presented for OFET studies.

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>

Synthesis and solid state structures of macromolecular cylindrical brushes with varying side chain length

Polymer ◽  
2004 ◽  
Vol 45 (12) ◽  
pp. 4009-4015 ◽  
Author(s):  
Bin Zhang ◽  
Shanju Zhang ◽  
Lidia Okrasa ◽  
Tadeusz Pakula ◽  
Tim Stephan ◽  
...  
Keyword(s):  
Solid State ◽  
Chain Length ◽  
Side Chain ◽  
Side Chain Length ◽  
Solid State Structures

Revealing the Side‐Chain Dependent Ordering Transition of Highly‐Crystalline Double‐Cable Conjugated Polymers

2021 ◽  
Author(s):  
Guitao Feng ◽  
Wenliang Tan ◽  
Safakath Karuthedath ◽  
Cheng Li ◽  
Xuechen Jiao ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Side Chain ◽  
Ordering Transition

Solid-State Order and Charge Mobility in [5]- to [12]Cycloparaphenylenes

2018 ◽  
Vol 141 (2) ◽  
pp. 952-960 ◽  
Author(s):  
Janice B. Lin ◽  
Evan R. Darzi ◽  
Ramesh Jasti ◽  
Ilhan Yavuz ◽  
K. N. Houk
Keyword(s):  
Solid State ◽  
Charge Mobility

Thermosetting Mechanism Study of Organosilicon Polymer Containing Carborane by Solid-State NMR Spectroscopy

1999 ◽  
Vol 576 ◽  
Author(s):  
H. Kimura ◽  
K. Okita ◽  
M. Ichitani ◽  
M. Yonezawa ◽  
T. Sugimoto
Keyword(s):  
Solid State ◽  
Solid State Nmr ◽  
Nmr Spectra ◽  
Main Chain ◽  
Addition Reaction ◽  
Side Chain ◽  
Mechanism Study ◽  
Nmr Method ◽  
Organosilicon Polymer ◽  
Thermal Stable

ABSTRACTThe thermosetting mechanism of an organosilicon polymer containing carborane has been studied utilizing the 13and 29Si solid-state NMR method. The polymer having C≡C bonds in the main chain and CH═CH2, Si-H bonds, and carborane in the bulky side chain, shows a very highly thermal stability in air by curing. From 13C and 29Si NMR spectra of the polymer, it was found that the intermolecular cross-linking reactions of the polymer was due to (1) the diene reaction between Ph-C≡C and C≡C and (2) the addition reaction between side chain terminal and Ph-C≡C and between CH═CH2 and Si–H, and a very highly thermal stable structure is formed.

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