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Pentacene

About: Pentacene is a research topic. Over the lifetime, 5051 publications have been published within this topic receiving 161481 citations. The topic is also known as: 2,3:6,7-dibenzanthracene & benzo[b]naphthacene.


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Journal ArticleDOI
TL;DR: In this paper, the authors investigated contact-induced nucleation in the context of small-molecule OSCs and OSC:polymer blends prepared by blade coating, a printing process capable of mimicking large area batch and roll-to-roll manufacturing.
Abstract: Scalable manufacturing of small-molecule organic thin film transistors (OTFTs) with performance approaching single crystals requires extraordinary control over microstructures and morphologies of organic semiconductors (OSCs). Here, contact-induced nucleation in the context of small-molecule OSCs and OSC:polymer blends prepared by blade coating, a printing process capable of mimicking large area batch and roll-to-roll manufacturing, is investigated. Using polarized optical microscopy, microbeam grazing incidence wide angle X-ray scattering, and energy-filtered transmission electron microscopy, it is revealed that previous design rules drawn from spin coating of OSCs and contact-induced nucleation may have to be revisited in the context of blade coating. It is shown that blade coating achieves texture purity in case of 2,8-difluoro-5,11-bis(triethylsilylethynyl) anthradithiophene (diF-TES-ADT), irrespective of whether the contact is chemically treated with a halogenated self-assembled monolayer (SAM) or not, in contrast to spin coating which requires an SAM. Here, it is demonstrated that OSC–contact interactions increase the nucleation density and can disrupt the vertical stratification in polymer:OSC blends with great detrimental effects on carrier transport. Using these lessons, we demonstrate bottom-contact bottom-gate OTFTs without chemical surface modification achieving hole mobilities of 4.6 and 3.6 cm2 V−1 s−1, using 6,13-bis(triisopropylsilylethynyl)pentacene and diF-TES-ADT, respectively, blended with an insulating polymer.

67 citations

Journal ArticleDOI
TL;DR: The synergistic effects of charge trapping in the discontinuous P13 and the charge‐trapping property of the poly(4‐vinylphenol) (PVP) layer remarkably improve the memory performance.
Abstract: Nonvolatile organic field-effect transistor (OFET) memory devices based on pentacene/N,N′-ditridecylperylene-3,4,9,10-tetracarboxylic diimide (P13)/pentacene trilayer organic heterostructures have been proposed. The discontinuous n-type P13 embedded in p-type pentacene layers can not only provide electrons in the semiconductor layer that facilitates electron trapping process; it also works as charge trapping sites, which is attributed to the quantum well-like pentacene/P13/pentacene organic heterostructures. The synergistic effects of charge trapping in the discontinuous P13 and the charge-trapping property of the poly(4-vinylphenol) (PVP) layer remarkably improve the memory performance. In addition, the trilayer organic heterostructures have also been successfully applied to multilevel and flexible nonvolatile memory devices. The results provide a novel design strategy to achieve high-performance nonvolatile OFET memory devices and allow potential applications for different combinations of various organic semiconductor materials in OFET memory.

67 citations

Journal ArticleDOI
TL;DR: The magnetic field dependence of the fluorescence of pentacene-doped tetracene single crystals indicates that following energy transfer to Pentacene, the trapped pentacenes singlet fissions into one tetracenes triplet exciton and one pentacense triplet (estimated energy 0.81 ± 0.02 eV) as discussed by the authors.

67 citations

Journal ArticleDOI
TL;DR: In situ low-temperature scanning tunnelling microscopy investigation reveals a molecular orientation transition of organic thin films of pentacene and p-sexiphenyl on graphite, arising from the delicate balance between the intermolecular electrostatic and interfacial dispersion forces.

67 citations

Journal ArticleDOI
Dipti Gupta1, Namho Jeon1, Seunghyup Yoo1
TL;DR: In this paper, the authors analyzed the device characteristics of organic thin-film transistors (OTFT) fabricated using trisopropylsilylethynyl (TIPS)-pentacene with the help of a two-dimensional physics-based numerical simulation.

67 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202382
2022176
2021111
2020125
2019151
2018159