Flexible organic field-effect transistors with TIPS-Pentacene crystals exhibiting high electrical stability upon bending

Raghuwanshi, Vivek; Bharti, Deepak; Tiwari, Shree Prakash

doi:10.1016/j.orgel.2016.01.030

Cited by 66 publications

(37 citation statements)

References 33 publications

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“…Recently, many efforts have been done to making crystalline organic semiconducting thin films from solution for the use of organic field-effect transistor [4] [5]. Small molecule like 6,13-Bis(triisopropylsilyl)pentacene (TIPS-Pentacene) has gained a lot of consideration due to its environmental stability [6], its solubility in organic solvents [3] and its high field effect mobility higher than 1 cm 2…”

Section: Introductionmentioning

confidence: 99%

Optimization of 6,13Bis(triisopropylsilylethynyl)pentacene (TIPS-Pentacene) Organic Field Effect Transistor: Annealing Temperature and Solvent Effects

Kadri¹,

Karim²,

Seck³

et al. 2018

MSA

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In this contribution, we report on the effect of solvents with different boiling points and annealing temperature on the performance of TIPS-pentacene transistors. Several solvents have been used for TIPS-pentacene thin film processing: toluene, chlorobenzene and tetrahydrofuran. To study the influence of solvent and temperature; the electrical parameters of TIPS-pentacene field effect transistor were measured. The highest values of mobilities were 3 7.1 10 − × cm 2 •V −1 •s −1 , 3 4.5 10 − × cm 2 •V −1 •s −1 and 3 1.43 10 − × cm 2 •V −1 •s −1 respectively for TIPS-pentacene field effect transistor using chlorobenzene, toluene and tetrahydrofuran and annealed respectively at 120˚C, 150˚C and 120˚C. We have correlated these electrical performances with AFM images in order to point out the role of morphological properties. It is found that the grain size, and roughness highly affect the electrical parameters.

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Section: Introductionmentioning

confidence: 99%

Optimization of 6,13Bis(triisopropylsilylethynyl)pentacene (TIPS-Pentacene) Organic Field Effect Transistor: Annealing Temperature and Solvent Effects

Kadri¹,

Karim²,

Seck³

et al. 2018

MSA

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“…It is also worth to note that, as shown in Figure , those pinholes on the surface of PVP films are eliminated by IPN, which results in optimized surface roughness of dielectric/semiconductor interface and enhanced densification of PVP films. It is crucial as the uniformity of dielectric/semiconductor interface significantly impacts charge transport and interfacial traps …”

Section: Resultsmentioning

confidence: 99%

Surface Infused Interpenetrating Network as Gate Dielectric for High Performance Thin Film Transistors

Han

Zhang

et al. 2017

Macro Materials & Eng

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An effectively novel surface infusion method is proposed and employed as a modification process of insulator to simultaneously improve surface morphology and densification of dielectric layers in an organic filed effect transistor. The process involves two steps: infusion of liquid monomers into the cross‐linked poly(4‐vinylphenol) films and photopolymerization to form interpenetrating polymer network (IPN) within the surface. The modified films exhibit excellent insulating properties with smooth surface, high densification, and low leakage current. Moreover, the improved dielectric surface with infused IPN results in a better semiconducting polymer ordering, which facilitates charge transport. In correlation to device performance, it shows that the charge mobility improves from 0.24 to 1.60 cm2 V−1 s−1 along with improved threshold voltage and on/off ratio. This novel method can be broadly applicable to the simple optimization of polymeric gate dielectric for the further improvement of organic thin film transistors.

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“…Another organic semiconductor is pentacene, which accounts for a high carrier mobility due to the well-organised molecular arrangement of the polycrystalline film micro structure, and is used in flexible applications. Pentacene can be deposited by methods such as drop casting [197,198], blade coating [199], spray deposition [200], thermal evaporation [201], conventional lithography [201,202] and solution shearing [200,203]. A solution of 6,13-bis(triisopropyl-silylethynyl) (TIPS)-pentacene was sprayed onto a 2.5 nm layer of PMMA (capacitance = 5.1 nF/cm 2 ) to fabricate a sensor with a charge mobility of 0.068 cm 2 V -1 s -1 and a current I on /I off ratio 3.17 × 10 4 [200].…”

Section: Organic Semiconductorsmentioning

confidence: 99%

Flexible Sensors—From Materials to Applications

et al. 2019

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Flexible sensors have the potential to be seamlessly applied to soft and irregularly shaped surfaces such as the human skin or textile fabrics. This benefits conformability dependant applications including smart tattoos, artificial skins and soft robotics. Consequently, materials and structures for innovative flexible sensors, as well as their integration into systems, continue to be in the spotlight of research. This review outlines the current state of flexible sensor technologies and the impact of material developments on this field. Special attention is given to strain, temperature, chemical, light and electropotential sensors, as well as their respective applications.

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Flexible organic field-effect transistors with TIPS-Pentacene crystals exhibiting high electrical stability upon bending

Cited by 66 publications

References 33 publications

Optimization of 6,13Bis(triisopropylsilylethynyl)pentacene (TIPS-Pentacene) Organic Field Effect Transistor: Annealing Temperature and Solvent Effects

Optimization of 6,13Bis(triisopropylsilylethynyl)pentacene (TIPS-Pentacene) Organic Field Effect Transistor: Annealing Temperature and Solvent Effects

Surface Infused Interpenetrating Network as Gate Dielectric for High Performance Thin Film Transistors

Flexible Sensors—From Materials to Applications

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