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Growth of ZnO Nanotubes by CO2 Supercritical Fluid Treatment at Low-TemperatureChang, Kuan-chang 31 August 2009 (has links)
A low-temperature method, supercritical CO2 fluid (SCCF) technology, was applied for oxidation of metal Zn film on glass substrate at 60¢XC. In this study, Zn film was deposited by DC sputtering at room temperature and post-treated by SCCF, which is mixed with 0.15 vol % H2O. The scanning electron microscopy (SEM) images and transmission electron microscopic (TEM) indicate that high density ZnO Nanotubes were formed on the glass substrate. SCCF technology has shown successful oxidation the Zinc at low temperature for the first time.
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Réseaux de nanofils et de nanotubes d'oxyde de zinc de dimensions contrôlées obtenus par voie électrochimique application aux cellules solaires nanostructurées /Elias, Jamil Lévy-Clément, Claude. January 2008 (has links) (PDF)
Thèse de doctorat : Chimie et sciences des matériaux : Paris Est : 2008. / Titre provenant de l'écran-titre.
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Modeling and simulations of carbon nanotube (CNT) dispersion in water/surfactant/polymer systems /Uddin, Nasir Mohammad. Capaldi, Franco. Farouk, Bakhtier. January 2010 (has links)
Thesis (Ph.D.)--Drexel University, 2010. / Includes abstract and vita. Includes bibliographical references (leaves 183-191).
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Highly integrated and efficient enzyme-carbon nanotube bio-nanoelectronics via DNA programmable assembly.Withey, Gary D. January 2008 (has links)
Thesis (Ph.D.)--Brown University, 2008. / Vita. Adviser: Jimmy Xu. Includes bibliographical references (leaves 202-212).
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Mechanical properties of materials at micro/nano scales /Xu, Wei-Hua. January 2003 (has links)
Thesis (Ph.D.)--Hong Kong University of Science and Technology, 2003. / Includes bibliographical references. Also available in electronic version. Access restricted to campus users.
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Preparation and characterization of magnetically aligned carbon nanotube buckypaper and compositeShankar, Kadambala Ravi. Wang, Ben. January 2003 (has links)
Thesis (M.S.)--Florida State University, 2003. / Advisor: Dr. Ben Wang, Florida State University, College of Engineering, Dept. of Industrial Engineering. Title and description from dissertation home page (viewed Mar. 2, 2004). Includes bibliographical references.
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Process, structure and electrochemicalJagannathan, Sudhakar. January 2009 (has links)
Thesis (Ph.D)--Polymer, Textile and Fiber Engineering, Georgia Institute of Technology, 2009. / Committee Chair: Kumar, Satish; Committee Member: Cook, Fred L.; Committee Member: Bottomley, Lawrence A.; Committee Member: Carter, William Brent; Committee Member: Yushin, Gleb. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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Tribological study of carbon nanotube oscillatorsMa, Chi-chiu., 馬志超. January 2004 (has links)
published_or_final_version / Chemistry / Doctoral / Doctor of Philosophy
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Synthesis of photosensitizing diblock copolymers for functionalizationof carbon nanotubes and their applicationsLi, Chi-ho, 李志豪 January 2012 (has links)
Block copolymers containing pendant pyrene, terpyridine and poly(3-
hexylthiophene) moieties with different block ratios and chain lengths were
synthesized by reversible addition-fragmentation chain transfer (RAFT)
polymerization. The block copolymers obtained had narrow molecular weight
distribution. The applications of these polymers for non-covalent functionalization
of carbon nanotubes and in photovoltaic devices were studied.
The molecular weight distribution and block sizes of the block copolymers
could be controlled quite well. The polydispersities measured were below 1.25.
The block copolymers could be functionalized on the surface of CNTs. The
functionalized CNTs had an improved dispersing ability and a maximum
dispersing ability of 0.30 mgmL-1 in DMF was achieved. The photosensitizing
properties of an individual functionalized CNT were studied by conductive atomic
force microscopy. In the presence of the photosensitizing unit, the photocurrent
was measured to be 6.4 nAμW-1 at 580 nm. This suggests the role of metal
complexes in the photosensitizing process in the block copolymer.
Poly(3-hexylthiophene)-block-pendant pyrene copolymers were synthesized by
Grignard metathesis and RAFT polymerization. Different loadings of the block
copolymers functionalized CNT were employed as the electron accepting
materials in bulk heterojunction photovoltaic devices. A maximum power
conversion efficiency of 0.77 × 10-3 % was achieved for the poly(3-
hexylthiophene): 0.5% polymer functionalized CNT devices. The poor efficiency
was attributed to the low CNT loadings that limited the electron transport in the
devices.
The poly(3-hexylthiophene)-block-pendant pyrene copolymer were employed as
compatibilizer for poly(3-hexylthiophene): [6,6]-phenyl-C61-butyric acid methyl
ester (PCBM) bulk heterojunction photovoltaic devices. With the addition of 20
% of the block copolymer, a maximum power conversion efficiency of 1.62 %
could be achieved. The long term stability of the encapsulated photovoltaic
devices was studied. There was more than 30 % reduction in the degradation of
performance after 30 days when the block copolymer was added as compatibilizer.
These results suggested the role of the block copolymer compatibilizers in
improving both the photovoltaic performances and stability of the devices.
Differential scanning calorimetry results suggested that the improved photovoltaic
performances may be attributed to the enhanced compatibility between poly(3-
hexylthiophene) and PCBM. / published_or_final_version / Chemistry / Doctoral / Doctor of Philosophy
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A UHV variable temperature STM and its application to the study of high-T(C) superconductors and carbon nanotubesLee, Jinho, 1969- 28 August 2008 (has links)
Not available / text
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