scholarly journals Indacenodipyrene Containing Small Molecules and Ladder Polymers

2021 ◽  
Author(s):  
Ain Uddin ◽  
Kyle Plunkett
Keyword(s):  
Small Molecules ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors ◽  
Molecular Weights ◽  
Highest Occupied Molecular Orbital ◽  
Precursor Polymers ◽  
Palladium Catalyzed ◽  
Ladder Polymers ◽  
Planar Materials ◽  
Lowest Unoccupied Molecular Orbitals

A series of s-indaceno[1,2,3-cd:5,6,7-c'd']dipyrene-containing small molecule and ladder polymers were prepared using a palladium catalyzed arylation reaction. Precursor polymers and their resulting ladder polymers with molecular weights up to 13 kDa were prepared. The rigid, planar materials possessed highest occupied molecular orbital (HOMO) energies of -5.39 to -5.23 eV, lowest unoccupied molecular orbitals (LUMO) energies of -2.42 eV to -2.98 eV, and optical gaps of 1.68 to 2.03 eV. Organic field effect transistors were prepared with derivatives giving hole mobilities up to 2.5 X 10-5 cm2V-1s-1.

High performance solution-processable tetrathienoacene (TTAR) based small molecules for organic field effect transistors (OFETs)

2017 ◽  
Vol 53 (43) ◽  
pp. 5898-5901 ◽  
Author(s):  
Sureshraju Vegiraju ◽  
Deng-Yi Huang ◽  
Pragya Priyanka ◽  
Yo-Shan Li ◽  
Xian-Lun Luo ◽  
...  
Keyword(s):  
Small Molecules ◽  
Field Effect ◽  
High Performance ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors ◽  
Solution Processable

DDTT-TTARexhibits the highest mobility of 0.81 cm2V−1s−1.

Thieno[3,2-b]pyrrole-benzothiadiazole Banana-Shaped Small Molecules for Organic Field-Effect Transistors

2018 ◽  
Vol 10 (14) ◽  
pp. 11818-11825 ◽  
Author(s):  
Chandima Bulumulla ◽  
Ruwan Gunawardhana ◽  
Ruvanthi N. Kularatne ◽  
Madison E. Hill ◽  
Gregory T. McCandless ◽  
...  
Keyword(s):  
Small Molecules ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors

Improved charge transport in fused-ring bridged hemi-isoindigo-based small molecules by incorporating a thiophene unit for solution-processed organic field-effect transistors

2020 ◽  
Vol 8 (4) ◽  
pp. 1398-1404
Author(s):  
Guobing Zhang ◽  
Ruikun Chen ◽  
Yue Sun ◽  
Boseok Kang ◽  
Mingxiang Sun ◽  
...  
Keyword(s):  
Charge Transport ◽  
Small Molecules ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors ◽  
Solution Processed ◽  
Fused Ring ◽  
Donor Acceptor

Two acceptor–donor–acceptor small molecules based on fused ring as donor, and hemi-isoindigo units as acceptors were synthesized and characterized for solution-processed organic field-effect transistors.

Tetracyano isoindigo small molecules and their use in n-channel organic field-effect transistors

2014 ◽  
Vol 16 (36) ◽  
pp. 19345-19350 ◽  
Author(s):  
Raghunath R. Dasari ◽  
Amir Dindar ◽  
Chi Kin Lo ◽  
Cheng-Yin Wang ◽  
Cassandre Quinton ◽  
...  
Keyword(s):  
Small Molecules ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors

Electrochemistry, a Useful Tool in the Synthesis of Oligothiophenes

2021 ◽  
Vol 25 ◽  
Author(s):  
Fabiana Pandolfi ◽  
Martina Bortolami ◽  
Marta Feroci ◽  
Leonardo Mattiello ◽  
Vincenzo Scarano ◽  
...  
Keyword(s):  
Molecular Orbital ◽  
Organic Semiconductors ◽  
Organic Solar Cells ◽  
Field Effect Transistors ◽  
Energy Levels ◽  
Organic Field Effect Transistors ◽  
Light Emitting ◽  
Highest Occupied Molecular Orbital ◽  
Lowest Unoccupied Molecular Orbital ◽  
Organic Photodetectors

: Thiophene derivatives, either "small molecules," oligomers or polymers, play a role of primary importance among organic semiconductors. Therefore they have numerous and different technological applications in the field of Organic Electronics. For this reason, thiophene-based materials are found in devices such as organic light-emitting diodes (OLEDs), organic field-effect transistors (OFETs), organic solar cells (OSCs), organic photodetectors, and many others. Oligothiophenes and polythiophenes have in common excellent charge transport properties and synthetic procedures that are now well established. Furthermore, oligothiophenes do not possess the intrinsic disadvantages of polythiophenes, such as the lack of well-defined structures and the inevitable presence of impurities. Electrochemistry can give a significant contribution to the field of oligothiophenes not only by allowing the determination of the highest-occupied molecular orbital (HOMO) and the lowest-unoccupied molecular orbital (LUMO) energy levels by the means of cyclic voltammetry (CV), but also rendering oligothiophenes syntheses more expeditious in comparison with the classical organic ones. This review outlines the application of electrochemistry techniques to the synthesis of oligothiophene derivatives.

Solvent-vapor-annealed A–D–A-type semicrystalline conjugated small molecules for flexible ambipolar field-effect transistors

2018 ◽  
Vol 6 (21) ◽  
pp. 5698-5706 ◽  
Author(s):  
Min Je Kim ◽  
Young Woong Lee ◽  
Yujeong Lee ◽  
Han Young Woo ◽  
Jeong Ho Cho
Keyword(s):  
Small Molecules ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors ◽  
Solvent Vapor ◽  
Donor Acceptor

This paper reports a series of acceptor–donor–acceptor-type small molecules based on an oligothiophene–phenylene core with three different electron-accepting terminal groups—dicyanovinyl, cyano-rhodanine, and cyano-indanone, respectively—for application to flexible ambipolar organic field-effect transistors.

scholarly journals Thienoisoindigo (TII)‐Based Quinoidal Small Molecules for High‐Performance n‐Type Organic Field Effect Transistors

2020 ◽  
pp. 2002930
Author(s):  
Arulmozhi Velusamy ◽  
Chih‐Hsin Yu ◽  
Shakil N. Afraj ◽  
Chia‐Chi Lin ◽  
Wei‐Yu Lo ◽  
...  
Keyword(s):  
Small Molecules ◽  
Field Effect ◽  
High Performance ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors
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