Nanostructured Fullerene Films

Barazzouk, Saïd; Hotchandani, Surat; Kamat, Prashant V.

doi:10.1002/1521-4095(200111)13:21<1614::aid-adma1614>3.0.co;2-d

Cited by 73 publications

(54 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In a recent study, the clusters of C 60 formed in a mixed solvent of acetonitrile and toluene were found to be negatively charged under the influence of a direct current (DC) electric field and could be electrophoretically deposited on an electrode surface. [15] Here, we report our successful preparation of one-dimensional nanostructure materials of fullerene using the electrochemical technique. In particular, when an AAO template was used, highly ordered C 60 nanowire arrays could be fabricated.…”

Section: Resultsmentioning

confidence: 99%

Well‐Defined Fullerene Nanowire Arrays

Guo

Li³

et al. 2003

Adv Funct Materials

View full text Add to dashboard Cite

Fullerene nanowire arrays with well‐defined size and length have been prepared by a controllable technique. Fullerene molecules such as C60 are introduced into the pores of anodic aluminum oxide (AAO) templates under a direct current (DC) electric field and polymerized in the pores. Structure analysis shows that the C60 nanowires are mainly polycrystalline, and a rhombohedral polymeric phase is observed in their vibration spectra. The electrical conductivity of so‐prepared nanowire arrays show a semiconducting behavior. The ability to fabricate the fullerene nanowire arrays with controlled structures represents an important step toward the development of chemical sensors and nanoscale electronic devices based on fullerenes.

show abstract

Section: Resultsmentioning

confidence: 99%

Well‐Defined Fullerene Nanowire Arrays

Guo

Li³

et al. 2003

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

“…Suspensions were prepared by the method described in our previous paper: [17] One unit of toluene solution with MEH-PPV was injected into four units of acetonitrile, to obtain a suspension of MEH-PPV in acetonitrile/toluene (4:1). The C 60 suspensions [23] and the mixture of MEH-PPV and C 60 were obtained by the same method. Figure 1a indicates the optical absorption and photoluminescence spectra of the MEH-PPV suspension.…”

Section: Colloidal Suspensions Of Meh-ppv and Fullerenementioning

confidence: 99%

Loading Fullerene into a Conjugated Polymer Without Chemical Modification

Tada¹,

Onoda²

2004

Adv Funct Materials

View full text Add to dashboard Cite

Conjugated polymers doped with fullerenes show excellent photoconversion efficiencies. However, due to the poor solubility of pure C60 in common organic solvents, it was thought that some chemical modifications to C60 were required in order to load conjugated polymers with comparable weights of fullerene. Here, we report a novel way to load large amounts of unmodified C60 fullerene into the conjugated polymer poly(2‐methoxy‐5‐(2′‐ethylhexoxy)‐1,4‐phenylenevinylene), MEH‐PPV. The principle of our approach is to separate the film‐deposition stage from the material‐solidification stage. That is, materials are quickly solidified from dilute solution into colloidal particles, which are large enough to be collected by electrophoretic deposition. Deposition from a mixture of separate suspensions of MEH‐PPV and C60 fullerene resulted in films consisting of isolated particles. In contrast, by using a suspension made of a dilute solution of MEH‐PPV and C60, which was so dilute that traditional techniques such as spin‐coating were not applicable, an MEH‐PPV film doped with 20 mol‐% C60, corresponding to an almost 1:1 ratio by weight of molecularly dispersed C60, was easily obtained. To the best of our knowledge, this is the first report on the successful loading of an equivalent weight ratio of unmodified C60 molecules into MEH‐PPV.

show abstract

“…Over the last ten years, the study of fullerene films has attracted extensively interests [1][2][3] due to their promising applications in various fields such as nanodevices, 4,5) optics, [6][7][8] electrochemistry 9,10) etc. Dozens of methods, 9,[11][12][13][14][15][16][17] e.g., electrophoretical depositions, 9) solvent evaporation, 11,12) physical vapor deposition, 13,14) molecular-beam epitaxy, 15) layer-by-layer assembly, 16) and Langmuir-Blodgett films 17) etc., were developed to prepare the fullerene films, and the morphology and structure of these as-prepared films were characterized by STM, AFM, LEEDS, XRD, XPS and various other spectroscopic techniques.…”

Section: Introductionmentioning

confidence: 99%

“…Dozens of methods, 9,[11][12][13][14][15][16][17] e.g., electrophoretical depositions, 9) solvent evaporation, 11,12) physical vapor deposition, 13,14) molecular-beam epitaxy, 15) layer-by-layer assembly, 16) and Langmuir-Blodgett films 17) etc., were developed to prepare the fullerene films, and the morphology and structure of these as-prepared films were characterized by STM, AFM, LEEDS, XRD, XPS and various other spectroscopic techniques. Fullerene films are generally either in polycrystalline form or in fullerene cluster form, depending on the film preparation method.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Fullerene Polycrystalline Films on Different Substrates by Physical Vapor Deposition

et al. 2007

View full text Add to dashboard Cite

Fullerene (C 60 ) films were prepared on Si, ITO, and Cu substrates by the physical vapor deposition (PVD) method. It was observed that the morphology and structure of fullerene films strongly depend on the substrates. Along with the interactions between fullerenes and substrates increasing from ITO, Si to Cu substrate, C 60 forms small polycrystalline grains, large polycrystalline grains and fullerene oligomers under the same experimental conditions. The irreversible C 60 polymerization on Cu substrate is suggested to be catalyzed by the copper metal.

show abstract

Nanostructured Fullerene Films

Cited by 73 publications

References 2 publications

Well‐Defined Fullerene Nanowire Arrays

Well‐Defined Fullerene Nanowire Arrays

Loading Fullerene into a Conjugated Polymer Without Chemical Modification

Preparation of Fullerene Polycrystalline Films on Different Substrates by Physical Vapor Deposition

Contact Info

Product

Resources

About