Solution-grown aligned C60 single-crystals for field-effect transistors

Li, Hanying; Fan, Congcheng; Vosgueritchian, Michael; Tee, Benjamin C. K.; Chen, Hongzheng

doi:10.1039/c3tc32431a

Cited by 47 publications

(41 citation statements)

References 68 publications

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“…While for C 5 -PyDI and C 6 -PyDI the crystal ribbons were much longer and wider and arranged on the substrate regularly ( Figure 5), favoring charge transport. [28] Thepolarized-light micrograph (Supporting Information, Figure S12) and selected-area electron diffraction (SAED) patterns (Supporting Information, Figure S13) of the C 5 -PyDI and C 6 -PyDI nanoribbons support their single-crystalline nature.S AED patterns indicate that the molecular packing within the nanoribbons of C 5 -PyDI and C 6 -PyDI are identical to those in the single crystal. Furthermore,t he transmission electron microscopy (TEM) and SAED identify that [010] is the preferable growth direction of the crystal ribbons of C 5 -PyDI and C 6 -PyDI.…”

Section: Angewandte Chemiementioning

confidence: 94%

4,5,9,10‐Pyrene Diimides: A Family of Aromatic Diimides Exhibiting High Electron Mobility and Two‐Photon Excited Emission

Huang

Guo

et al. 2017

Angew Chem Int Ed

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The design and synthesis of high-performance n-type organic semiconductors are important for the development of future organic optoelectronics. Facile synthetic routes to reach the K-region of pyrene and produce 4,5,9,10-pyrene diimide (PyDI) derivatives are reported. The PyDI derivatives exhibited efficient electron transport properties, with the highest electron mobility of up to 3.08 cm V s . The tert-butyl-substituted compounds (t-PyDI) also showed good one- and two-photon excited fluorescence properties. The PyDI derivatives are a new family of aromatic diimides that may exhibit both high electron mobility and good light-emitting properties, thus making them excellent candidates for future optoelectronics.

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Section: Angewandte Chemiementioning

confidence: 94%

4,5,9,10‐Pyrene Diimides: A Family of Aromatic Diimides Exhibiting High Electron Mobility and Two‐Photon Excited Emission

Huang

Guo

et al. 2017

Angew Chem Int Ed

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“…Reducing the thickness of the crystals will reduce the Ra accordingly. However, for the crystallization of the C60 ribbon crystals, the crystal width decreases together with the thickness, resulting in smaller contact areas between the ribbons and electrodes and, thus, higher Rc [50]. As such, crystallization methods for extended thin single crystals are in need of exploration [59,60].…”

Section: Resultsmentioning

confidence: 98%

“…Well-aligned C60 single-crystalline ribbons were prepared by the DPC method as previously reported [41,50]. These crystals are solvates with the incorporation of both m-xylene and CCl4 molecules.…”

Section: Resultsmentioning

confidence: 99%

“…In addition, the DPC method allows single crystals of organic semiconductors to form double-layered structures that exhibit ambipolar transport [43], photovoltaic effects [44], memory functions [45] as well as large-scale single-crystalline array [46,47]. Interestingly, FETs based on the obtained single crystals typically exhibit relatively high threshold voltages though high charge mobilities [30,31,[48][49][50]. The observed high threshold voltage should not originate from the charge traps in the conductive channel because the high crystallinity of the semiconductors and the obtained high mobility imply relatively low trap density in the conductive channel [7].…”

Section: Introductionmentioning

confidence: 98%

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Enhanced performance of field-effect transistors based on C60 single crystals with conjugated polyelectrolyte

et al. 2017

Sci. China Chem.

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Contact resistance at the interface between metal electrodes and semiconductors can significantly limit the performance of organic field-effect transistors, leading to a distinct voltage drop at the interface. Here, we demonstrate enhanced performance of n-channel field-effect transistors based on solution-grown C60 single-crystalline ribbons by introducing an interlayer of a conjugated polyelectrolyte (CPE) composed of poly [(9,9-bis(3′-((N,N-dimethyl)-N-ethylammonium)-propyl)-2,7-fluorene)-alt-2,7-(9,9-dioctylfluorene)] dibromide (PFN + Br − ). The PFN + Br − interlayer greatly improves the charge injection. Consequently, the electron mobility is promoted up to 5.60 cm 2 V −1 s −1 and the threshold voltage decreased dramatically with the minimum of 4.90 V.contact resistance, C60 single crystal, organic field-effect transistor, solution process Citation:

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“…For example, Jiang's group successfully showed the homogeneous 6,13‐bis(triisopropylsilylethynyl)‐pentacene (TIPS‐pentacene) single‐crystal arrays via a superhydrophobic micropillar flow‐coating method . Li's group applied a novel droplet pinned crystallization method to achieve the aligned microwire arrays along the receding direction of the droplet . Bjørnholm's group obtained the large‐scale organic arrays by vertically pulling the substrate out from the solution of the organic semiconductor …”

Section: Introductionmentioning

confidence: 99%

Dielectric Selection for Solution‐Processed High‐Mobility TIPS‐Pentacene Microwire Field‐Effect Transistors

Wang

Zhou

Tong

et al. 2019

Adv Materials Inter

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The dielectric effect on the mobility of the solution‐processed organic field‐effect transistors (OFETs) remains unknown. A major challenge is that most of the solution‐processed OFETs are obtained on hydrophilic dielectrics, while most of the commonly used dielectrics for high‐mobility OFETs are hydrophobic. In this work, by selecting a preferred solvent to ensure the good wettability of 6,13‐bis(triisopropylsilylethynyl)‐pentacene (TIPS‐pentacene) solution on both hydrophobic and hydrophilic dielectrics, the highly ordered TIPS‐pentacene single‐crystal microwire arrays are in situ grown on the hydrophobic and hydrophilic dielectrics via a solution‐processed method, and the dielectric effect on the mobility of the solution‐processed TIPS‐pentacene OFETs is investigated. The highest mobility on the divinyltetramethyldisiloxane‐bis(benzocyclobutene) (BCB)/SiO2 dielectric is ascribed to the matching of both the polar and dispersive components of surface energy between dielectric and semiconductor. This work powerfully confirms the direct effect of the dielectric properties on mobility, and provides a new method to select the optimized dielectric for solution‐processed high‐mobility OFETs.

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Solution-grown aligned C60 single-crystals for field-effect transistors

Cited by 47 publications

References 68 publications

4,5,9,10‐Pyrene Diimides: A Family of Aromatic Diimides Exhibiting High Electron Mobility and Two‐Photon Excited Emission

4,5,9,10‐Pyrene Diimides: A Family of Aromatic Diimides Exhibiting High Electron Mobility and Two‐Photon Excited Emission

Enhanced performance of field-effect transistors based on C60 single crystals with conjugated polyelectrolyte

Dielectric Selection for Solution‐Processed High‐Mobility TIPS‐Pentacene Microwire Field‐Effect Transistors

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