Polycrystalline pentacene thin films for large area electronic applications

Knipp, Dietmar; Street, R. A.; Krusor, B. S.; Apte, Raj B.; Ho, Jia Chong

doi:10.1016/s0022-3093(01)01070-5

Cited by 53 publications

(37 citation statements)

References 4 publications

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“…Of the many molecular conductors, pentacene is a promising candidate for future electronic devices and an interesting model system. Recent improvements in electronic aplications showed that this material exhibits mobilities higher than 1 cm 2 /V·s for TFTs made from highly ordered films ( [1], [2]). …”

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confidence: 99%

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Effect of impurities on the mobility of single crystal pentacene

Jurchescu

Baas

Palstra

2004

Applied Physics Letters

856

683

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We have obtained a hole mobility for the organic conductor pentacene of µ =35 cm 2 /V·s at room temperature increasing to µ = 58 cm 2 /V·s at 225 K. These high mobilities result from a purification process in which 6,13-pentacenequinone was removed by vacuum sublimation. The number of traps is reduced by two orders of magnitude compared with conventional methods. The temperature dependence of the mobility is consistent with the band model for electronic transport.PACS numbers: 72.80.Le, 81.10. Bk. The infrared experiments were complemented by mass spectrometry analysis, which confirmed that the C = O vibration originates from a pentacenequinone molecule.We have used vacuum sublimation under a temperature gradient as purification method. This technique is effective for separation of impurities from a solid if these 1

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confidence: 99%

“…We report a mobility of μ =35cm 2 We determined the electrical properties of the pure pentacene single crystals using space-charge-limited current (SCLC) measurements (figure 2). The samples were measured in darkness and a vacuum of 2·10 -7 mbar.…”

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confidence: 99%

Effect of impurities on the mobility of single crystal pentacene

Jurchescu

Baas

Palstra

2004

Applied Physics Letters

856

683

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“…The first OFET-devices were developed using silicon dioxide, a standard dielectric material in MOSFET technology. The growth process of SiO2 can be well-controlled, providing a low defect density and a smooth surface to produce well-oriented organic semiconducting films [44][45][46]. Besides the high electrical stability, thermally grown SiO2 on a heavily doped Si wafer acts as template to evaluate new synthesized organic semiconducting materials.…”

Section: Organic Based Tftmentioning

confidence: 99%

Flexible Electronics: Integration Processes for Organic and Inorganic Semiconductor-Based Thin-Film Transistors

2015

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Flexible and transparent electronics have been studied intensively during the last few decades. The technique establishes the possibility of fabricating innovative products, from flexible displays to radio-frequency identification tags. Typically, large-area polymeric substrates such as polypropylene (PP) or polyethylene terephthalate (PET) are used, which produces new requirements for the integration processes. A key element for flexible and transparent electronics is the thin-film transistor (TFT), as it is responsible for the driving current in memory cells, digital circuits or organic light-emitting devices (OLEDs). In this paper, we discuss some fundamental concepts of TFT technology. Additionally, we present a comparison between the use of the semiconducting organic small-molecule pentacene and inorganic nanoparticle semiconductors in order to integrate TFTs suitable for flexible electronics. Moreover, a technique for integration with a submicron resolution suitable for glass and foil substrates is presented.

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“…Pentacene exhibits a relatively high mobility of >1 cm 2 /Vs even for vacuum evaporated thin films [8][9][10][11]. Active layers of OTFTs are generally used in polycrystalline state and transistor characteristics are strongly influenced by the film morphology.…”

Section: Overview Of the Morphological Features Of Pentacene Thin Filmsmentioning

confidence: 99%

Carrier Mobility in Organic Thin-film Transistors: Limiting Factors and Countermeasures

Nakamura

Matsubara

2014

J. Photopol. Sci. Technol.

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Device physics in organic thin-film transistors (OTFTs) have been extensively studied along with the efforts to improve device performance and to develop their applications. Among many promising organic semiconducting materials, pentacene has been a benchmark in this research field. Understanding the bottlenecks of carrier transport in pentacene OTFTs is therefore important to maximize the performance of OTFTs. In this paper, we summarize our knowledge on the bottlenecks against carrier transport in practical polycrystalline organic thin films: extrinsic factors that disturb the carrier transport in OTFTs, intrinsic structure and properties, equations to express the overall carrier mobility in polycrystalline films, and influence of surface chemical modification on the crystallographic and electronic structures.

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Polycrystalline pentacene thin films for large area electronic applications

Cited by 53 publications

References 4 publications

Effect of impurities on the mobility of single crystal pentacene

Effect of impurities on the mobility of single crystal pentacene

Flexible Electronics: Integration Processes for Organic and Inorganic Semiconductor-Based Thin-Film Transistors

Carrier Mobility in Organic Thin-film Transistors: Limiting Factors and Countermeasures

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