Aligning Single-Walled Carbon Nanotubes By Means Of Langmuir-Blodgett Film Deposition: Optical, Morphological, and Photo-electrochemical Studies

被引：64

作者：

Giancane, Gabriele ^{[1
]}

Ruland, Andres ^{[2
,3
]}

Sgobba, Vito ^{[2
,3
]}

Manno, Daniela ^{[4
]}

Serra, Antonio ^{[4
]}

Farinola, Gianluca M. ^{[5
]}

Hassan Omar, Omar ^{[5
]}

Guldi, Dirk M. ^{[2
,3
]}

Valli, Ludovico ^{[1
]}

机构：

[1] Univ Salento, Dipartimento Ingn Innovaz, I-73100 Lecce, Italy

[2] Univ Erlangen Nurnberg, Dept Chem & Pharm, D-91058 Erlangen, Germany

[3] Univ Erlangen Nurnberg, Interdisciplinary Ctr Mol Mat, D-91058 Erlangen, Germany

[4] Univ Salento, Dipartimento Sci Mat, I-73100 Lecce, Italy

[5] Univ Bari, Dipartimento Chim, CNR, ICCOM, I-70125 Bari, Italy

来源：

ADVANCED FUNCTIONAL MATERIALS | 2010年 / 20卷 / 15期

关键词：

SOLAR; TRANSPARENT; PHOTOVOLTAICS; DISPERSION;

D O I：

10.1002/adfm.201000290

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An alkoxy-substituted poly(phenylene thiophene) is used in order to suspend single-walled carbon nanotubes in an organic solvent. The suspension is spread on the air water interface of a Langmuir trough and the floating film is characterized by means of Brewster angle microscopy and UV-visible reflection spectroscopy and the compression isotherm is recorded. The polymer/carbon-nanotube blend is transferred onto different substrates using the Langmuir-Blodgett technique. AFM measurements indicate the formation of globular structures for the samples transferred at low surface-pressure values and a tubular morphology for high-pressure-deposited samples. AFM analysis is repeated on a sample exposed to soft X-rays for about 5 h and a highly organized structure of bundles of carbon nanotubes rises up. Samples with different numbers of layers are transferred onto ITO substrates by means of the Langmuir-Blodgett method and are tested as photocathodes in a photo-electrochemical cell. A V-oc of 0.18 V, an I-sc of 85.8 mA, FF of 40.0%, and eta of (6.23 x 10(-3))% are obtained.

引用

页码：2481 / 2488

页数：8

共 41 条

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