Synthesis and Optical Properties of Organic Fluorescent Nanowires and Nanotubes

Cao, Bailai; Mu-ge, JI; Sun, Sheng

doi:10.1166/jnn.2013.7467

Cited by 2 publications

(3 citation statements)

References 4 publications

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“…Anodic aluminum oxide (AAO) membranes and mesoporous silica also exemplify hard templates. [45][46][47] A broad range of techniques have been attempted to fill the pores of templates. Among them, vapor deposition polymerization (VDP) based on hard templates is one of the simplest ways to fill the pores of AAO membrane with polymeric materials.…”

Section: Template-assisted Synthesismentioning

confidence: 99%

Fabrication of One-Dimensional Organic Nanomaterials and Their Optoelectronic Applications

Yu¹,

Kim²,

Lee³

et al. 2014

j. nanosci. nanotech.

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This paper reviews the recent research and development of one-dimensional (1D) organic nanomaterials synthesized from organic semiconductors or conducting polymers and their applications to optoelectronics. We introduce synthetic methodologies for the fabrication of 1D single-crystalline organic nanomaterials and 1D multi-component organic nanostructures, and discuss their optical and electrical properties. In addition, their versatile applications in optoelectronics are highlighted. The fabrication of highly crystalline organic nanomaterials combined with their integration into nanoelectronic devices is recognized as one of the most promising strategies to enhance charge transport properties and achieve device miniaturization. In the last part of this review, we discuss the challenges and the perspectives of organic nanomaterials for applications in the next generation soft electronics, in terms of fabrication, processing, device integration, and investigation on the fundamental mechanisms governing the charge transport behaviors of these advanced materials.

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Section: Template-assisted Synthesismentioning

confidence: 99%

Fabrication of One-Dimensional Organic Nanomaterials and Their Optoelectronic Applications

Yu¹,

Kim²,

Lee³

et al. 2014

j. nanosci. nanotech.

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show abstract

“…In this way, one-dimensional nanostructures can be formed by filling the pores of a nanoporous membrane with a desired material. ,,− The pore dimensions dictate the overall size of the obtained nanostructure. Organic semiconductor growth in nanoporous media can also be used to manipulate molecular arrangement, for example, to select crystal polymorphs or manipulate molecular orientation. − Pore filling has been achieved by dip-coating, − drop-casting, − spin-coating, ,, and melting. ,,− In cases of solution-based processing, the solvent often dries quickly, leading to limited molecular order, and the pore filling can be incomplete, leading to the formation of tubes rather than solid wires. ,− Melt processing, on the other hand, is not compatible with molecular systems that may volatilize or decompose at elevated temperatures.…”

mentioning

confidence: 99%

“…Following growth, AAO templated nanowires can be released by selective etching of the AAO template and then suspension in water or alcohol, enabling facile deposition of the nanowires onto substrates. ,,,− It is typically assumed that the in-template morphology, crystal structure, and optoelectronic properties are preserved upon release from the template. The removal of the nanoconfinement conditions that are present during growth may, however, lead to the rearrangement of metastable structures that were stabilized by the template.…”

mentioning

confidence: 99%

Freeing Organic Semiconductor Nanowires from Nanoporous Aluminum Oxide Templates: Effects on Morphology, Crystal Structure, and Molecular Aggregation

Haruk

Fernando

Smilgies

et al. 2021

Crystal Growth & Design

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Nanoconfinement of organic semiconductors in nanoporous templates is promising for manipulating polymorphism and molecular orientation while forming nanowires with controlled dimensions. To harness the potential advantages of templated organic semiconductor nanowires, there is a need to understand the factors that influence final nanowire structure. Little is known, however, about the extent to which nanowire morphology and internal structure are impacted by nanowire release from the boundary conditions imposed by the template. To address this knowledge gap, we assessed the morphological, crystallographic, and photophysical changes that occur in three common organic semiconductors in response to nanoporous template removal [(Bis(triisopropylsilylethynyl)pentacene (TIPS-Pn), (7,7′-[4,4-Bis(2-ethylhexyl)-4H-silolo[3,2-b:4,5-b′]dithiophene-2,6-diyl]bis[6-fluoro-4-(5′-hexyl-[2,2′-bithiophen]-5-yl)benzo[c][1,2,5]thiadiazole] (p-DTS(FBTTh2)2), and poly(3-hexylthiophene) (P3HT)]. Although the nanowires comprising planar small molecules maintained their cylindrical shape following template removal, the investigated polymer, P3HT, exhibited extensive nanowire fusing for pore sizes of 55 nm and below, leading to a networked structure. All three systems presented preferred crystallite orientations that persisted in the freed nanowires. Nanowires generally exhibited an increasingly J-like aggregation character following template removal. Collectively, these results reveal that subtle molecular rearrangement takes place in the small molecule systems, while significant structural rearrangement can occur in polymer systems in response to template removal.

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Synthesis and Optical Properties of Organic Fluorescent Nanowires and Nanotubes

Cited by 2 publications

References 4 publications

Fabrication of One-Dimensional Organic Nanomaterials and Their Optoelectronic Applications

Fabrication of One-Dimensional Organic Nanomaterials and Their Optoelectronic Applications

Freeing Organic Semiconductor Nanowires from Nanoporous Aluminum Oxide Templates: Effects on Morphology, Crystal Structure, and Molecular Aggregation

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