Mobility anisotropy in the herringbone structure of asymmetric Ph-BTBT-10 in solution sheared thin film transistors

Tamayo, Adrián; Hofer, Sebastian; Salzillo, Tommaso; Ruzié, Christian; Schweicher, Guillaume; Resel, Roland; Mas‐Torrent, Marta

doi:10.1039/d1tc01288f

Cited by 25 publications

(29 citation statements)

References 53 publications

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“…[189] The performance parameters of OFET characteristics are summarized in Table 3. [190][191][192][193][194][195][196][197][198][199][200][201][202][203][204][205][206][207] As discussed above, the devices performance with regular thermal evaporation is not conspicuous. Solution process including spin-coating, self-assembly, inkjet-printing, and blade-coating could produce high-performance OFETs with mobility and on/off ratio over 10 cm 2 V −1 s −1 and 10 5 , respectively.…”

Section: Organic Field-effect Transistorsmentioning

confidence: 99%

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Structures, Properties, and Device Applications for [1]Benzothieno[3,2‐b]Benzothiophene Derivatives

Xie

Liu

Sun

et al. 2022

Adv Funct Materials

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1]benzothieno[3,2-b]benzothiophene (BTBT), with two benzene rings as the outermost rings, is referred to as diacene-fused ladder-type π-conjugated thienothiophenes. During the last three decades, derivatives based on BTBT core have been extensively studied due to their tremendous application prospects in organic field-effect transistors (OFETs) and organic optoelectronic devices. In order to further advance the development of organic electronics, new materials are constantly being synthesized and new methods are constantly evolving. This review mainly focuses on the crystal and electronic structures of BTBT derivatives, the soluble and thermal properties, the fabrication methods, as well as the strategies for performance improvement and optoelectronic applications including OFETs, photodetectors, synaptic devices, and organic light-emitting transistors. As one of the most promising organic materials, the insight into BTBT-based molecules will accelerate their potential application and provide important reference value for the development toward commercialized and industrialized organic semiconducting products.

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Section: Organic Field-effect Transistorsmentioning

confidence: 99%

“…Solution shearing [195] DPh-BTBT Si/SiO 2 2.0 NA >10 7 Thermal evaporation [185] DPV-BTBT Si/SiO 2 0.437 −4.4 10 7…”

Section: Photodetectorsmentioning

confidence: 99%

Structures, Properties, and Device Applications for [1]Benzothieno[3,2‐b]Benzothiophene Derivatives

Xie

Liu

Sun

et al. 2022

Adv Funct Materials

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“…In contrast, the device based on C13-BTBT-C13 gave the highest hole mobility (μ h ) of 0.645 cm 2 Vs À1 but with low anisotropy (μ k /μ ⊥ = 1.5). [25] The OFETs with the 2D charge transporting characteristic is more desirable in the development of large-area and wearable organic electronics. [30,34,35] Our study not only revealed the significant influences of the alkyl substituents on the self-assembly behaviors and film morphologies of the solution-sheared BTBT derivatives but also demonstrated a facile method to prepare the 2D chargetransport character.…”

Section: Introductionmentioning

confidence: 99%

Molecularly aligned films of [1]benzothieno[3,2‐b][1]benzothiophene derivatives by solution shearing: Effect of alkyl substitution on morphology and charge transporting property

Prakoso

Huang

et al. 2022

J Chinese Chemical Soc

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The self‐assembly behaviors, crystal morphologies, and charge transporting properties of π–conjugated framework can be strongly affected by the functional group/substituent it carries, as well as the way the film is prepared. In this work, thin films of mono‐ and di‐alkylated [1]benzothieno[3,2‐b][1]‐benzothiophene (BTBT) derivatives were prepared on a silicon substrate by solution‐shearing method. Their film morphologies and crystal packing details were examined using polarized optical microscope, grazing incident wide‐angle X‐ray scattering, and atomic force microscope. With 2‐tridecyl[1]benzothieno[3,2‐b][1]‐benzothiophene (C13‐BTBT), a film with well‐aligned molecules packed in face‐to‐face π‐stacking arrangement was obtained, rendering a 1D‐like charge conduction channel. For 2,7‐bis‐tridecyl[1]benzothieno[3,2‐b][1]‐benzothiophene (C13‐BTBT‐C13), well‐aligned molecules packed in a layered‐herringbone arrangement were obtained. With these films as a conducting channel in transistor fabrication, high‐field‐effect mobility was realized for C13‐BTBT‐C13, with a maximum mobility (μh) of 0.645 cm2 /Vs and low anisotropic effect, presumably owing to the 2D growth of the π–conjugated skeleton in LHB packing. This study demonstrated the advantage of 2D semiconducting channels formed from C13‐BTBT‐C13 by low‐cost and scalable solution‐shearing processes, necessary for practical use in industry‐level and future flexible electronics.

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“…It has also been shown that the use of polymer blends facilitates the processing of the films, the crystallisation of the semiconductor and the device stability. [39][40][41][42] After an optimisation process modifying the solution formulation (solvent and molecular weight and ratio of the To assess the morphology and crystallinity of the semiconducting layer, optical polarised microscopy images of the thin films were taken and are shown in Fig. 5b.…”

Section: Resultsmentioning

confidence: 99%

“…It has also been shown that the use of polymer blends facilitates the processing of the films, the crystallisation of the semiconductor and the device stability. 39–42…”

Section: Resultsmentioning

confidence: 99%

Charge transfer complexes of a benzothienobenzothiophene derivative and their implementation as active layer in solution-processed thin film organic field-effect transistors

et al. 2022

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Mobility anisotropy in the herringbone structure of asymmetric Ph-BTBT-10 in solution sheared thin film transistors

Abstract: Thin films of the organic semiconductor Ph-BTBT-10 and blends of this material with polystyrene have been deposited by a solution shearing technique at low (1 mm/s) and high (10 mm/s)...

Cited by 25 publications

References 53 publications

Structures, Properties, and Device Applications for [1]Benzothieno[3,2‐b]Benzothiophene Derivatives

Structures, Properties, and Device Applications for [1]Benzothieno[3,2‐b]Benzothiophene Derivatives

Molecularly aligned films of [1]benzothieno[3,2‐b][1]benzothiophene derivatives by solution shearing: Effect of alkyl substitution on morphology and charge transporting property

Charge transfer complexes of a benzothienobenzothiophene derivative and their implementation as active layer in solution-processed thin film organic field-effect transistors

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