Fabrication and Electrical Properties of Dendrimer Langmuir-Blodgett Films Based on Metal Complex

Jung, Sang-Burm; Yoo, Seung-Yeop; Kim, Chung-Kyun; Kwon, Young−Soo

doi:10.1143/jjap.42.2434

Jpn. J. Appl. Phys.

2003

DOI: 10.1143/jjap.42.2434

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Fabrication and Electrical Properties of Dendrimer Langmuir-Blodgett Films Based on Metal Complex

Sang-Burm Jung

Seung-Yeop Yoo

Chung-Kyun Kim

et al.

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“…[1][2][3][4][5] In particular, -conjugated dendrimers are one of the most promising materials because they show multi-functional properties such as electrical-and/or optical-properties, and high solubility with one molecule. [6][7][8][9][10][11][12] The dendrimer consists of a core, dendrons (branches), and surface groups. The core and the dendron define the key electrical-or opticalproperties such as carrier transport or light emission.…”

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Photocarrier Transport Property of Phenylene-vinylene Dendrimer Studied by Time-of-Flight Method

Mizusaki¹,

Yamahara²,

Yamada³

et al. 2009

Polym. J.

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The photocarrier transport property of the three-generation dendrimer, which is composed of phenylene-vinylene as the dendron group and triphenylamine as the surface group G3D3-PV(TPA), was studied by the time of flight (TOF) method using a sandwich-type cell of indium-tin-oxide (ITO)/G3D3-PV(TPA)/Mg-Al. The photocurrent decay shows that hole transport occurs stronger than electron transport, and dispersive transport is observed in the dendrimer film. The mobility at 25 C exhibits negative electric field dependence, and the intrinsic mobility at zero electric field is 7:1 Â 10 À5 cm 2 /(VÁs). This is faster than that of linear poly(p-phenylene-vinylene). Besides this, the result is one order smaller than that of poly(3-hexylthiophene), but faster than those of poly(3-dodecylthiophene) and poly(3-octadecylthiophene). The result indicates that one of the important parameters for the carrier transport is the average distance between -conjugated molecules. The fact that the carrier hopping of the G3D3-PV(TPA) dendrimer occurs effectively implies the structure would be a disk shape since the phenylene-vinylene dendron sites of the different dendrimer molecule are estimated to be close to each other. Recently, -conjugated polymer materials have attracted much interest as potential candidates for use in electro-optical devices, since they exhibit unique features such as flexibility, solubility, and easy film preparation with uniform thickness in large area.

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Photocarrier Transport Property of Phenylene-vinylene Dendrimer Studied by Time-of-Flight Method

Mizusaki¹,

Yamahara²,

Yamada³

et al. 2009

Polym. J.

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Investigation of the monolayer LB film properties of a silsesquioxane hybrid containing phenyl groups using SPM

et al. 2009

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Fabrication and Electrical Properties of Dendrimer Langmuir-Blodgett Films Based on Metal Complex

Cited by 2 publications

References 0 publications

Photocarrier Transport Property of Phenylene-vinylene Dendrimer Studied by Time-of-Flight Method

Photocarrier Transport Property of Phenylene-vinylene Dendrimer Studied by Time-of-Flight Method

Investigation of the monolayer LB film properties of a silsesquioxane hybrid containing phenyl groups using SPM

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