Controlling Ambipolar Charge Transport in Isoindigo‐Based Conjugated Polymers by Altering Fluorine Substitution Position for High‐Performance Organic Field‐Effect Transistors

2019 ◽  
Vol 29 (10) ◽  
pp. 1805994 ◽  
Author(s):  
Minjun Kim ◽  
Won‐Tae Park ◽  
Sang Ah Park ◽  
Cheol Woong Park ◽  
Seung Un Ryu ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Charge Transport ◽  
Field Effect ◽  
High Performance ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors ◽  
Fluorine Substitution

Methoxylation of quinoidal bithiophene as a single regioisomer building block for narrow-bandgap conjugated polymers and high-performance organic field-effect transistors

2020 ◽  
Vol 8 (43) ◽  
pp. 15168-15174 ◽  
Author(s):  
Yunlong Sun ◽  
Yunpeng Zhang ◽  
Yang Ran ◽  
Longxian Shi ◽  
Qingsong Zhang ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Building Block ◽  
Field Effect ◽  
High Performance ◽  
Field Effect Transistors ◽  
Hole Mobility ◽  
Methoxyl Group ◽  
Organic Field Effect Transistors ◽  
Narrow Bandgap

Methoxyl group was introduced to obtain isomer-free methoxylation quinoidal bithiophene building block. Four polymers displayed narrow bandgap (<1.20 eV) and hole mobility of up to 2.70 cm2 V−1 s−1.

scholarly journals Synthesis of diketopyrrolopyrrole-based polymers with polydimethylsiloxane side chains and their application in organic field-effect transistors

2018 ◽  
Vol 5 (3) ◽  
pp. 172025 ◽  
Author(s):  
Inori Ohnishi ◽  
Kazuhito Hashimoto ◽  
Keisuke Tajima
Keyword(s):  
Thin Films ◽  
Conjugated Polymers ◽  
Charge Transport ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Side Chains ◽  
Organic Field Effect Transistors ◽  
High Solubility ◽  
Solid Films ◽  
Alkyl Side Chains

Linear polydimethylsiloxane (PDMS) was investigated as a solubilizing group for π-conjugated polymers with the aim of combining high solubility in organic solvents with the molecular packing in solid films that is advantageous for charge transport. Diketopyrrolopyrrole-based copolymers with different contents and substitution patterns of the PDMS side chains were synthesized and evaluated for application in organic field-effect transistors. The PDMS side chains greatly increased the solubility of the polymers and led to shorter d -spacings of the π-stacking in the thin films compared with polymers containing conventional branched alkyl side chains.

Anisotropic Strain Effect on Electron Transport in C60 Organic Field Effect transistors

2013 ◽  
Vol 1501 ◽  
Author(s):  
Akash Nigam ◽  
Günther Schwabegger ◽  
Mujeeb Ullah ◽  
Rizwan Ahmed ◽  
Ivan I. Fishchuk ◽  
...  
Keyword(s):  
Electron Transport ◽  
Charge Transport ◽  
Field Effect ◽  
High Performance ◽  
Tensile Strain ◽  
Field Effect Transistors ◽  
Compressive Strain ◽  
Strain Effect ◽  
Wearable Electronics ◽  
Organic Field Effect Transistors

ABSTRACTMechanical flexibility is one of the key advantages of organic semiconducting films in applications such as wearable-electronics or flexible displays. The present study is aimed at gaining deeper insight into the effect of strain on charge transport properties of the organic semiconductor films. We have fabricated high performance C60 top gate organic field effect transistors (OFET) on flexible substrates and characterized the devices by curling the substrates in concave and convex manner, to apply varying values of compressive and tensile strain, respectively. Electron mobility is found to increase with compressive strain and decrease with tensile strain. The observed strain effect is found to be strongly anisotropic with respect to the direction of flow of current. This observation on mobility is quantified using an Extended Gaussian Disorder Model (EGDM) for the hopping charge transport. We suggest that the observed strain dependence of the electron transport is dominated by a change in the effective charge hopping distance over the grain boundaries in polycrystalline C60 films.

Recent advances in the orientation of conjugated polymers for organic field-effect transistors

2019 ◽  
Vol 7 (43) ◽  
pp. 13323-13351 ◽  
Author(s):  
Manish Pandey ◽  
Nikita Kumari ◽  
Shuichi Nagamatsu ◽  
Shyam S. Pandey
Keyword(s):  
Conjugated Polymers ◽  
Field Effect ◽  
High Performance ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors ◽  
Recent Advances

This review summarizes recent advancements in various orientation techniques for conjugated polymers for use in high performance organic field effect transistors.

High performance single-crystalline organic field-effect transistors based on molecular-modified dibenzo[a,e]pentalenes derivatives

2020 ◽  
Vol 44 (40) ◽  
pp. 17552-17557
Author(s):  
Fan Yin ◽  
Long Wang ◽  
Xiankai Yang ◽  
Meihui Liu ◽  
Hua Geng ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Charge Transport ◽  
Transport Properties ◽  
Field Effect ◽  
High Performance ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors ◽  
Single Crystalline

Modulating the charge transport properties realized by a controllable molecular structure resulted in different packing arrangements.

scholarly journals High-performance polymer field-effect transistors: a perspective from the multi-level microstructures

2021 ◽  
Author(s):  
Ze-Fan Yao ◽  
Jie-Yu Wang ◽  
Jian Pei
Keyword(s):  
Conjugated Polymers ◽  
Charge Transport ◽  
Transport Property ◽  
Field Effect ◽  
High Performance ◽  
Critical Parameter ◽  
Field Effect Transistors ◽  
Structural Evolution ◽  
High Performance Polymer ◽  
Multi Level

The multi-level microstructure of conjugated polymers is the most critical parameter determining the charge transport property in field-effect transistors (FETs). However, controlling the hierarchical microstructures and the structural evolution remains...

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