Novel benzo[<i>b</i>]thieno[2,3-<i>d</i>]thiophene derivatives with an additional alkyl-thiophene core: synthesis, characterization, and p-type thin film transistor performance

Park, Tae Sun; Ryu, Soomin; Ho, Dongil; Chae, Wookil; Earmme, Taeshik; Kim, Choongik; Seo, Sang‐Hun

doi:10.1039/d2nj01635d

Cited by 2 publications

(1 citation statement)

References 84 publications

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“…[15] Indeed, thienoacene-based derivatives, comprising fused rings in a ladder-type molecular structure, present a highly delocalized structure and low-lying highest occupied molecular orbital (HOMO) energy level, affording outstanding electrical performance and stability. [16][17][18][19][20][21][22][23] In addition, strong SÀ S and π-π intermolecular interactions of thienoacene-based derivatives have been known to enhance large intermolecular orbital overlap in the solid state and promote good charge transport characteristics. [24][25][26] Among thienoacene-based derivatives, dithieno[3,2-b : 2',3'd]thiophene (DTT)-based compounds are one of the promising candidates as active materials in high performance OFETs.…”

Section: Introductionmentioning

confidence: 99%

Development and Characterization of Solution‐Processable Dithieno[3,2‐b : 2’,3’‐d]thiophenes Derivatives with Various End‐capped Groups for Organic Field‐Effect Transistors

Kang

Jang

et al. 2022

ChemPlusChem

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In this paper, four organic materials based on dithieno[3,2b : 2',3'-d]thiophene (DTT) core structure with end-capping groups (phenyl and thienyl) and linker (acetylenic and olefinic) between DTT-core and end-capping groups were synthesized and characterized as solution-processable organic semiconductors (OSCs) for organic field-effect transistors (OFETs). Thermal, optical, and electrochemical properties of the corresponding materials were determined. Next, all DTT-derivatives were coated by solution-shearing method, and the thin-film microstructures and morphologies were investigated. To investigate the electrical performance of four newly synthesized DTTderivatives, bottom-gate/top-contact OFETs were fabricated and characterized in ambient condition. It was found that substitution of acetylenic for olefinic linkers between DTT-cores and end-capping groups enhanced device performance. Especially, the resulting OFETs based on the compound containing phenylacetylene exhibited the highest hole mobility of 0.15 cm 2 /Vs and current on/off ratio of ~10 6 , consistent with film morphology and texture showing long range interconnected crystalline grains and strong diffraction peaks.

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Section: Introductionmentioning

confidence: 99%

Development and Characterization of Solution‐Processable Dithieno[3,2‐b : 2’,3’‐d]thiophenes Derivatives with Various End‐capped Groups for Organic Field‐Effect Transistors

Kang

Jang

et al. 2022

ChemPlusChem

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Solution-Processable Benzo[b]thieno[2,3-d]thiophene Derivatives as Organic Semiconductors for Organic Thin-Film Transistors

et al. 2023

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Two new benzo[b]thieno[2,3-d]thiophene (BTT) derivatives, 2-(benzo[b]thiophen-5-yl)benzo[b]thieno[2,3-d]thiophene (compound 2), and 2-(benzo[b]thieno[2,3-d]thiophene-2yl)dibenzo[b,d]thiophene (compound 3) have been synthesized and utilized as solution-processable small molecular organic semiconductors for organic field-effect transistors (OFETs). The physicochemical characteristics of the recently created substances were analyzed using thermogravimetric analysis (TGA), differential scanning calorimeter (DSC), and UV-vis spectroscopy. Subsequently, the above-mentioned substances were employed as semiconductor layers in bottom-gate/top-contact OFETs through solution shearing methods for device fabrication, and their electrical performances were meticulously evaluated. The outcoming OFET device displayed p-channel behavior, demonstrating hole mobility of up to 0.005cm2/Vs and a current on/off ratio higher than 106.

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Novel benzo[b]thieno[2,3-d]thiophene derivatives with an additional alkyl-thiophene core: synthesis, characterization, and p-type thin film transistor performance

Abstract: Newly synthesized benzo[b]thieno[2,3-d]thiophene derivatives were employed as active layers of organic field effect transistors, and these transistors showed decent electrical performance.

Cited by 2 publications

References 84 publications

Development and Characterization of Solution‐Processable Dithieno[3,2‐b : 2’,3’‐d]thiophenes Derivatives with Various End‐capped Groups for Organic Field‐Effect Transistors

Development and Characterization of Solution‐Processable Dithieno[3,2‐b : 2’,3’‐d]thiophenes Derivatives with Various End‐capped Groups for Organic Field‐Effect Transistors

Solution-Processable Benzo[b]thieno[2,3-d]thiophene Derivatives as Organic Semiconductors for Organic Thin-Film Transistors

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