Pulsed Neodymium-Doped Yttrium Aluminum Garnet Laser Heating of Multiwalled Carbon Nanotube Film

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概要

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• A multiwalled carbon nanotube (MWCNT) film surface was irradiated with a single pulse from a neodymium-doped yttrium aluminum garnet (Nd:YAG) laser. When an MWCNT film is irradiated with a pulsed Nd:YAG laser of 23.7 mJ/cm2, the calculated maximum surface temperature becomes 304 °C. The surface temperature increases from 595 to 2968 °C with an increase in laser power from 59.4 to 469 mJ/cm2. The MWCNT film is examined by increasing the intensity of the two characteristic Raman shifts $I_{\text{D}}$ (defect-induced mode: D-band) and $I_{\text{G}}$ (graphite-induced mode: G-band) to clarify the effect of pulsed Nd:YAG laser heating. Moreover, a new original image analytical method is developed to characterize CNTs from scanning electron microscopy (SEM) images. This method is useful for measuring the diameter of as-grown CNTs and those after annealing with a pulsed Nd:YAG laser. The number of detected diameters between 40 and 60 nm increases with an increase in laser energy density from 181 to 268 mJ/cm2.

• 2011-08-25

著者

• Ikegami Tomoaki

  Graduate School Of Science And Technology And Department Of Electrical And Computer Engineering Kuma

• Mitsugi Fumiaki

  Graduate School Of Science And Technology Department Of Electrical And Computer Engineering Kumamoto

• Ikegami Tomoaki

  Graduate School of Science and Technology, Kumamoto University, Kumamoto 860-8555, Japan

• Kozai Ryosuke

  Graduate School of Industrial Engineering, Tokai University, Kumamoto 862-8652, Japan

• Nakamiya Toshiyuki

  Graduate School of Industrial Engineering, Tokai University, Kumamoto 862-8652, Japan

• Iwasaki Yoichiro

  Graduate School of Industrial Engineering, Tokai University, Kumamoto 862-8652, Japan

• Sonoda Yoshito

  Graduate School of Industrial Engineering, Tokai University, Kumamoto 862-8652, Japan

• Semba Keisuke

  Graduate School of Science and Technology, Kumamoto University, Kumamoto 860-8555, Japan

• Aoqui Shinichi

  Graduate School of Engineering, Sojo University, Kumamoto 860-0082, Japan

• Muramoto Ikuya

  Graduate School of Engineering, Sojo University, Kumamoto 860-0082, Japan

関連論文

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• WO3 Thin Film for NOx Gas Sensor Prepared by Pulsed Laser Deposition (Proceedings of The 5Th East Asian Conference on Chemical Sensors: The 33RD Chemical Sensor Symposium)
• Ferroelectric and Colossal Magnetoresistive Properties of a PbZr_Ti_xO_3/La_Sr_xMnO_3 Heterostructure Film
• Pulsed Neodymium-Doped Yttrium Aluminum Garnet Laser Heating of Multiwalled Carbon Nanotube Film
• NO Sensing Property of Carbon Nanotube Based Thin Film Gas Sensors Prepared by Chemical Vapor Deposition Techniques
• Gas Sensing Properties of Metal Doped WO3 Thin Film Sensors Prepared by Pulsed Laser Deposition and DC Sputtering Process
• Observation of Phenomena After Pulsed Laser Irradiation of Solid with Optical Wave Microphone
• Investigation of Transparent Conductive Oxide Al-Doped ZnO Films Produced by Pulsed Laser Deposition
• Growth of Transparent Conductive Al-Doped ZnO Thin Films and Device Applications

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