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Small Molecule organic nanostructures—Fabrication and Properties

Journal of Materials Science & Technology 2008年第4期24卷 563-568页

作者： A.B.Djurii A.M.C.Ng Kai-Yin CHEUNG Man-Kin FUNG Wai-Kin CHAN Department of Physics University of Hong KongPokfulam RoadHong KongHong Kong SARChina Department of Chemistry University of Hong KongPokfulam RoadHong KongHong Kong SARChina

organic materials are of great interest for the development of low cost electronic and optoelectronic devices. Although majority of research on organic materials is concerned with synthesis of novel compounds and organic thin films, organic nanostructures are attracting increasing interest in recent years. We briefly review different growth methods of organic nanostructures, which can be roughly divided into vapor deposition methods and self-assembly techniques in solution. Then we highlight some interesting properties of organic nanostructures, as well as possible applications, includinf field emission, electronic and optoelectronic devices.

关键词： organic nanostructures Self-assembly Vapor deposition

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Morphology and Photoelectrochemical Characterization of MEH-PPV/PCBM Composite Film Doped with TiO_2 Nanoparticles

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Acta Metallurgica Sinica(English Letters) 2013年第4期26卷 373-377页

作者： Farid Habelhames Zerguine Wided Leila Lamiri Belkacem Nessark Hassina Derbal-Habak Laboratoire d'lectrochimie et matriaux(LEM) Facult de Technologie.Dpartement de gnie des Universit Ferhat Abbas Stif 119000Algrie ECOLE POLYTECHNIQUE LPICM LaboratoryORGATECH Team Route de Saclay ParisFrance

Poly[2-methoxy-5-（20-ethylhexyloxy）-io-phenylenevinylene] （MEH-PPV）, [6,6]-phenyl-C61-butyric acid methyl ester （PCBM） and titanium dioxide （TiO2） nanoparticles （n-type） were dissolved, mixed and deposited by physical methods （spin-coating） on indium tin-oxide （ITO） substrate. The incorporation of the titanium dioxide nanoparticles changed the morphology and increased the roughness of polymers film （MEH-PPV/PCBM）, and the photocurrent density of the composite （MEH-PPV/PCBM ＋n-TiO2） was higher than that of single MEH- PPV/PCBM film. The study showed that the presence of n-TiO2 particles in the polymeric film improves the photoelectrochemical properties of M EH-PPV/PCBM composite.

关键词： Photocurrent density Electrochemical property Hybrid coating Conducting polymer Titanium dioxide organic nanostructures

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organic luminescent nanowires-fabrication and characterization

Organic luminescent nanowires-fabrication and characterizati...

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2007亚洲光电子会议LED材料与器件分会场

作者： A. M. C. Ng A. B. Djurii W. K. Chan Dept. of Physics The University of Hong Kong Dept. of Chemistry The University of Hong Kong

In recent years, fabrication and characterization of various inorganic nanostructures has attracted great attention. On the other hand, studies on the synthesis of organic nanostructures have been scarce. Yet, organic nanostructures offer great potential for the fabrication of organic devices with improved performance. It is expected that the organic nanostructures can have improved charge transport properties due to different packing of molecules. organic nanostructures can be fabricated using a simple low vacuum evaporation system in the flow of a carrier gas （organic vapor phase deposition OVPD）. Here, we investigated the structural and optical properties of a range of organic nanostructured materials, such as 3,4,9,10-perylene-tetracarboxylic dianhydride （PTCDA）, 3,4,9,10-perylene-tetracarboxylic diimide （PTCDI）, 1,4,5,8-naphthalene-tetracarboxylic-dianhydride （NTCDA）, lead phthalocyanine （PbPc） and titanyl phthalocyanine （TiOPc）, prepared using OVPD. The obtained nanostructures were characterized by scanning electron microscopy （SEM） and photoluminescence （PL）. The effect of the substrate temperature on the morphology and emission properties of the materials will be discussed in detail.

关键词： organic nanostructures

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