High-Performance, Transparent Solution-Processed Organic Field-Effect Transistor with Low-<i>k</i> Elastomeric Gate Dielectric and Liquid Crystalline Semiconductor: Promises and Challenges

Raveendran, Reshma; Nagaraj, Mamatha; Namboothiry, Manoj A. G.

doi:10.1021/acsaelm.0c00635

Cited by 21 publications

(17 citation statements)

References 58 publications

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“…Spin‐coating, as the most widely used method for the deposition of thin film, could combine with other methods to fabricate organic semiconducting channels. [ 68,69 ] In order to make C8‐BTBT crystal more oriented, Yuan et al grew a highly aligned metastable structure from a blended solution of C8‐BTBT and polystyrene (PS) by adopting a novel OCSC method. [ 70 ] The resulting thin film could ascribe to passivation effect and increased solution viscosity due to the presence of PS during OCSC.…”

Section: Fabrication Techniques Of Btbt Derivative Thin Filmmentioning

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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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: Fabrication Techniques Of Btbt Derivative Thin Filmmentioning

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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“…For example, Zheng et al reported a method to improve the efficiency of organic solar cells based on poly (3-hexylthiophene) and [6,6]-phenyl-C61-butyric acid methyl ester derivatives blends. A discotic liquid crystal [2,3,6,7,10,11]-hexabutoxytriphenylene (HAT-C4) was introduced at the interface between the active layer and a hole transporting layer, and they found that HAT-C4 molecules distribute in the active layer to form a more efficient pathway for carriers, resulting in a maximum 43% improvement in the PCE with the insertion of HAT-C4. Note that this method is applicable to three different hole transporting materials including poly(3,-4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT: PSS), MoO 3 and NiO.…”

Section: Nonvolatile Memory Applicationsmentioning

confidence: 99%

“…To be specific, liquid crystalline states are correlated to both orientational and positional order for molecular arrangements, and liquid crystals are extensively applied in electronic and optical devices. For example, calamitic liquid crystals have been extensively applied in broad electronic devices including flat panel displays, [ 4 ] thermometers, [ 5 ] field‐effect transistors, [ 6,7 ] and their corresponding discotic counterparts were developed as optical compensator films for displays and gas sensors. [ 8,9 ] With regard to the cholesteric liquid crystals, thanks to the intrinsic self‐organized helical structure, they are capable of fulfilling mirrorless band‐edge lasers and many other optical applications beyond displays by forming microspheres and microshells in immiscible fluids or gels.…”

Section: Introductionmentioning

confidence: 99%

Organic liquid crystals in optoelectronic device applications: Field‐effect transistors, nonvolatile memory, and photovoltaics

Lin

et al. 2022

J Chinese Chemical Soc

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With the growing demands in flexible electronics, the development of plastic and organic materials has gained increased interest. In this focus review, the design concepts and recent advances of organic liquid crystalline materials in optoelectronic devices were introduced. Thermotropic liquid crystalline materials are categorized into three types: calamitic, discotic, and cholesteric types according to the structures of rod‐like, disk‐like, and chiral rod‐like molecules, respectively. Numerous liquid crystalline materials have been successfully incorporated in organic electronic devices. Notably, smectic liquid crystals hold great promise as semiconducting channel, floating gate electret, and charge transporting interlayer in field‐effect transistors, nonvolatile memory, and photovoltaics, respectively. This review sheds light on the great potential and importance of the organic liquid crystalline material for optoelectronic device applications.

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“…Semiconductor devices have attracted considerable attention in recent years. In particular, organic semiconductors are being used in devices including organic photovoltaics (OPVs) 1 – 3 , organic light-emitting diodes (OLEDs) 3 – 6 , and organic field-effect transistors 2 , 7 – 13 including for fabricating biosensors and radio frequency identification (RFID) tags. Organic semiconductor devices afford advantages such as a low-temperature fabrication process, low cost, and high flexibility.…”

Section: Introductionmentioning

confidence: 99%

Highly efficient hole injection from Au electrode to fullerene-doped triphenylamine derivative layer

Matsuda

Itagaki

Tatsuguchi

et al. 2022

Sci Rep

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Triphenylamine derivatives are superior hole-transport materials. For their application to high-functional organic semiconductor devices, efficient hole injection at the electrode/triphenylamine derivative interface is required. Herein, we report the design and evaluation of a Au/fullerene-doped α-phenyl-4′-[(4-methoxyphenyl)phenylamino]stilbene (TPA) buffer layer/TPA/Au layered device. It exhibits rectification conductivity, indicating that hole injection occurs more easily at the Au/fullerene-doped TPA interface than at the Au/TPA interface. The Richardson-Schottky analysis of the device reveals that the hole injection barrier (ΦB) at the Au/fullerene-doped TPA interface decreases to 0.021 eV upon using C70 as a dopant, and ΦB of Au/TPA is as large as 0.37 eV. The reduced ΦB of 0.021 eV satisfies the condition for ohmic contact at room temperature (ΦB$$\le $$ ≤ 0.025 eV). Notably, C70 doping has a higher barrier-reduction effect than C60 doping. Furthermore, a noteworthy hole-injection mechanism, in which the ion–dipole interaction between TPA and fullerenes plays an important role in reducing the barrier height, is considered based on cyclic voltammetry. These results should facilitate the design of an electrode/organic semiconductor interface for realizing low-voltage driven organic devices.

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High-Performance, Transparent Solution-Processed Organic Field-Effect Transistor with Low-k Elastomeric Gate Dielectric and Liquid Crystalline Semiconductor: Promises and Challenges

Abstract: This is a repository copy of High performance, transparent solution-processed organic field effect transistor with low-k elastomeric gate dielectric and liquid crystalline semiconductor: Promises and Challenges.

Cited by 21 publications

References 58 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

Organic liquid crystals in optoelectronic device applications: Field‐effect transistors, nonvolatile memory, and photovoltaics

Highly efficient hole injection from Au electrode to fullerene-doped triphenylamine derivative layer

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