A Facile PDMS‐Assisted Crystallization for the Crystal‐Engineering of C<sub>60</sub> Single‐Crystal Organic Field‐Effect Transistors

Wu, Kuan Yi; Wu, Tzong‐Chen; Chang, Sue-min; Hsu, Chain‐Shu; Wang, Chien‐Lung

doi:10.1002/adma.201501140

Cited by 49 publications

(54 citation statements)

References 36 publications

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“…5a. The lower μ e of the TPA–C 60 crystal array compared to the best-performing C 60 OFETs may be related to the longer C 60 –C 60 distance and the lower coordination number of C 60 s in the TPA–C 60 crystal lattice 31,38. In addition, the smeared ED pattern in Fig.…”

Section: Resultsmentioning

confidence: 95%

“…To obtain crystals large enough for device fabrication and to introduce better crystal orientation, the PAC method31 was applied to produce a crystal array of TPA–C 60 . Fig.…”

Section: Resultsmentioning

confidence: 99%

“…N -Octadecyltrichlorosilane (ODTS) was used as a self-assembled monolayer. The TPA–C 60 crystal arrays were prepared via the PDMS-assisted crystallization (PAC) method 31. The gold source and drain electrodes (40 nm in thickness) were then deposited on the organic layer by vacuum evaporation through a shadow mask, affording a bottom-gate, top-contact device configuration.…”

Section: Methodsmentioning

confidence: 99%

“…The phase behavior and phase structure of TPA–C 60 were investigated via differential scanning calorimetry (DSC) and electron diffraction (ED). The field effect transistor (FET) characteristics of TPA–C 60 were evaluated with oriented TPA–C 60 crystal arrays prepared via the PDMS-assisted crystallization (PAC) method 31. The results show that the pyramid-sphere-shaped amphiphile self-organized into an ordered phase containing stacks of alternating two-dimensional (2D) C 60 and TPA nanosheets.…”

Section: Introductionmentioning

confidence: 99%

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Flat-on ambipolar triphenylamine/C₆₀ nano-stacks formed from the self-organization of a pyramid-sphere-shaped amphiphile

Wei

Huang

et al. 2016

Chem. Sci.

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Section: Resultsmentioning

confidence: 95%

“…To obtain crystals large enough for device fabrication and to introduce better crystal orientation, the PAC method31 was applied to produce a crystal array of TPA–C 60 . Fig.…”

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Flat-on ambipolar triphenylamine/C₆₀ nano-stacks formed from the self-organization of a pyramid-sphere-shaped amphiphile

Wei

Huang

et al. 2016

Chem. Sci.

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“…Therefore, to achieve a control over the crystallization of C 60 is of utmost importance, particularly in acquiring 1D or 2D high‐quality crystals. As reported in the literature, several excellent methods have been developed to grow 1D C 60 crystals including template method, slow evaporation, precipitation, liquid/liquid interface precipitation (LLIP), volatile diffusion, and gel‐assisted method in general. While early attempts to grow C 60 crystals resulted in various morphologies, it was the use of crystalline C 60 fibers that had attracted particular interest because of their outstanding properties with high surface area and low dimensionality .…”

Section: Methodsmentioning

confidence: 99%

Spatially Confined Growth of Fullerene to Super‐Long Crystalline Fibers in Supramolecular Gels for High‐Performance Photodetector

et al. 2019

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been developed to grow 1D C 60 crystals including template method, slow evaporation, precipitation, liquid/liquid interface precipitation (LLIP), volatile diffusion, and gel-assisted method in general. While early attempts to grow C 60 crystals resulted in various morphologies, it was the use of crystalline C 60 fibers that had attracted particular interest because of their outstanding properties with high surface area and low dimensionality. [14] Although some methods were used to grow 1D fullerene crystals, it is still a great challenge to grow them with tunable sizes owing to their naturally 0D structures. Thus, to develop a method for the controlled growth of 1D C 60 crystals is still challenging and demanding for its promising applications, e.g., photodetector.As a recently developed medium for crystal growth, supramolecular gels derived from low-molecular-mass gelators (LMMGs), are a typical class of soft materials in which gelator molecules can be assembled into dynamic 3D networks via cooperative noncovalent interactions. [15][16][17][18][19][20][21][22] The gel matrix commonly entraps solvent molecules and prevents the macroscopic flow of the solvent within its networks. Sedimentation or aggregation of the crystals is suppressed in supramolecular gels and the arbitrary growths along faces in contact with the vessel walls or other crystals are also limited. Furthermore, the supramolecular gel could act as an inert matrix repressing heterogenous nucleation and making homogenous nucleation dominant. Or it affords an activated gel As a superstar organic semiconductor, fullerene (C 60 ) is versatile in nature for its multiple photoelectric applications. However, owing to its natural 0D structure, a challenge still remains unbeaten as to growth of 1D fullerene crystals with tunable sizes. Herein, reported is an efficient approach to grow C 60 as super-long crystalline fibers with tunable lengths and diameters in supramolecular gel by synergic changes of anti-solvent, gel length, crystallization time or fullerene concentration. As a result, the crystalline C 60 fibers can be modulated to as long as 70 mm and 70 000 in their length-to-width ratio. In this case, the gel 3D network provides spatial confinements for the growth of 1D crystal along the directional dispersion of anti-solvent. The fabricated fullerene device exhibits high responsivity (2595.6 mA W -1 ) and high specific detectivity (2.7 × 10 12 Jones) at 10 V bias upon irradiation of 400 nm incident light. The on/off ratio and its quantum efficiency are near to 540 and about 800%, respectively, and importantly, its photoelectric property remains very stable after storage in air for six months. Therefore, spatially confined growth of fullerene in supramolecular gels will be another crucial strategy to synthesize 1D semiconductor crystals for photoelectrical device applications in near future. 1D Fullerene CrystallizationAs a typical 0D carbon-based material, fullerene (C 60 ) is one of the important organic semiconductors and is versatile in nature on a...

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Regulated Dewetting for Patterning Organic Single Crystals with Pure Crystallographic Orientation toward High Performance Field‐Effect Transistors

Zhao

Fan²,

Feng

et al. 2018

Adv Funct Materials

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Fabrication of high‐quality organic single‐crystalline semiconductors and their deterministic patterning are core opportunities as well as challenges for large‐scale integration of functional devices with high efficiency and boosted performance. Previous approaches on solution patterning of organic semiconductors have achieved efficient and versatile control of the position, alignment, and size of organic structures. However, the poorly controllable dewetting dynamics of organic solution gives rise to low crystallinity and disordered crystallographic orientation of generated organic architectures that limit their device performance. Here, 1D organic single‐crystal arrays with high crystallinity, strict crystallographic alignment, precise position, tunable, and homogeneous size are fabricated by exploiting an asymmetric‐wettability topographical template. Periodically arranged micropillars with lyophobic sidewalls and lyophilic tops permit the generation of capillary bridges, which enable unidirectional dewetting of organic solution and ordered packing of molecules. The 1D arrays present pure (100) crystallographic orientation with π–π stacking of molecules in the optimal direction of carrier transport, leading to high carrier mobility of 8.7 cm2 V−1 s−1 in the field‐effect transistor measurements. A facile pressure sensor based on the patterned belt arrays is fabricated, exhibiting high sensitivity and long‐term stability.

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A Facile PDMS‐Assisted Crystallization for the Crystal‐Engineering of C₆₀ Single‐Crystal Organic Field‐Effect Transistors

Cited by 49 publications

References 36 publications

Flat-on ambipolar triphenylamine/C₆₀ nano-stacks formed from the self-organization of a pyramid-sphere-shaped amphiphile

Flat-on ambipolar triphenylamine/C₆₀ nano-stacks formed from the self-organization of a pyramid-sphere-shaped amphiphile

Spatially Confined Growth of Fullerene to Super‐Long Crystalline Fibers in Supramolecular Gels for High‐Performance Photodetector

Regulated Dewetting for Patterning Organic Single Crystals with Pure Crystallographic Orientation toward High Performance Field‐Effect Transistors

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A Facile PDMS‐Assisted Crystallization for the Crystal‐Engineering of C60 Single‐Crystal Organic Field‐Effect Transistors

Cited by 49 publications

References 36 publications

Flat-on ambipolar triphenylamine/C60 nano-stacks formed from the self-organization of a pyramid-sphere-shaped amphiphile

Flat-on ambipolar triphenylamine/C60 nano-stacks formed from the self-organization of a pyramid-sphere-shaped amphiphile

Spatially Confined Growth of Fullerene to Super‐Long Crystalline Fibers in Supramolecular Gels for High‐Performance Photodetector

Regulated Dewetting for Patterning Organic Single Crystals with Pure Crystallographic Orientation toward High Performance Field‐Effect Transistors

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Product

Resources

About

A Facile PDMS‐Assisted Crystallization for the Crystal‐Engineering of C₆₀ Single‐Crystal Organic Field‐Effect Transistors

Flat-on ambipolar triphenylamine/C₆₀ nano-stacks formed from the self-organization of a pyramid-sphere-shaped amphiphile

Flat-on ambipolar triphenylamine/C₆₀ nano-stacks formed from the self-organization of a pyramid-sphere-shaped amphiphile