Graphene, the crystalline allotrope of Carbon has phenomenal electrical properties and hence a number of application prospects. Multi-Layered Graphene (MLG) has tremendous application prospects as gas sensors. Thermal CVD performed at atmospheric pressure is a very simple and affordable synthesis technique for growing MLG. In this project we characterized Thermal-CVD grown MLG films with the At...

Using a conventional thermal chemical vapor deposition (CVD) system, ethanol vapor was enclosed in a reactor, i.e., no flow, with Co/Mo dip-coated quartz substrates to synthesize submillimeter long vertically aligned single-walled carbon nanotube (SWNT) films successfully. The no-flow CVD method yielded an increase in film thickness of up to 0.11 mm compared with the normal flowing gas method f...

Graphene research has prospered impressively in the past few years, and promising applications such as high-frequency transistors, magnetic field sensors, and flexible optoelectronics are just waiting for a scalable and cost-efficient fabrication technology to produce high-mobility graphene. Although significant progress has been made in chemical vapor deposition (CVD) and epitaxial growth of g...

Carbon nanotubes and graphene are extra-ordinal material with remarkable electrical, optical, mechanical and thermal properties. Films of vertically aligned (VA-) SWNTs and horizontally aligned (HA-) SWNTs are synthesized on quartz and crystal quartz substrates, respectively. These aligned film should inherit the remarkable properties of SWNTs. The recent progress in growth control and characte...

Acknowledgements With the utmost gratitude I would like to thank my supervising professor, Shigeo Maruyama, for his persistent support, and enduring guidance during the past three years. His enthusiasm in education and research, along with his experience and knowledge has led me to become a full-fledged researcher. His inspiring encouragement and insightful advice brought me to success. I feel ...

-Si atomic layer growth on Si was investigated by heating the surface with a Xe flash lamp in an ultraclean low-pressure environment of SiH, or Si2H6 gas. In the case of SiH4, about 0.4 atomic layer deposition per single flash light shot was observed on Si(1OO) at a substrate temperature of 385OC and at a SiH, partial pressure of 500Pa. The adsorption process of SiH, can be explained quantitati...

Abstract Chemical vapor deposition (CVD) has great potential to produce graphene films at large-scale. However, CVD production of usually requires a catalytic metal substrate, such as copper. Recently we have developed new method grow directly on crystalline silicon wafers with thermally grown 300 nm oxide layer, using seeded-CVD growth approach. The use methane the feedstock and optimized seed...

Cardiovascular disease (CVD), including myocardial infarction (MI) and peripheral or coronary artery disease (PAD, CAD), remains the number one killer of individuals in the United States and worldwide, accounting for nearly 18 million (>30%) global deaths annually. Despite considerable basic science and clinical investigation aimed at identifying key etiologic components of and potential therap...

The formation of carbon nanotubes (CNTs) through precipitated carbons emerging from supersaturated metal catalysts is an established mechanism for their growth during the CVD process. Here, the CNT growth mode is determined by the interaction between the substrate and the catalyst nanoparticle, e.g., the tip-growth mode for the weak adhesion between them and the base-growth mode for the strong ...