Spectral Absorption Properties of Ultrananocrystalline Diamond/Amorphous Carbon Composite Thin Films Prepared by Pulsed Laser Deposition

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概要

• 論文の詳細を見る

• The spectral absorption properties of ultrananocrystalline diamond (UNCD)/amorphous carbon composite films grown by pulsed laser deposition with graphite were experimentally investigated. The indirect optical band gaps estimated from the absorption spectrum were 1.0 eV and approximately 5.65 eV, which correspond to those for the amorphous carbon surrounding the UNCDs and for UNCDs themselves, respectively. In addition, the spectrum revealed a direct gap having a value of approximately 2.2 eV. One probable origin can be the presence of grain boundaries between UNCDs and amorphous carbon since they are specific to UNCD/amorphous carbon; further, its appearance is consistent with the theoretical predictions.

• Japan Society of Applied Physicsの論文
• 2007-10-25

著者

• Itakura Masaru

  Department Of Applied Science For Electronics And Materials Kyushu University

• Kuwano Noriyuki

  Department Of Applied Science For Electronics And Materials Interdisciplinary Graduate School Of Eng

• Hara Takeshi

  Department Of Animal Resource Sciences Graduate School Of Agricultural And Life Sciences The Univers

• Nagayama Kunihito

  Department Of Aeronautics And Astronautics

• Yoshitake Tsuyoshi

  Department of Applied Physics, Faculty of Engineering, Kyushu University

• Nagano Akira

  Department of Applied Science for Electronics and Materials, Kyushu University, Kasuga, Fukuoka 816-8580, Japan

• Kuwano Noriyuki

  Department of Applied Science for Electronics and Materials, Kyushu University, Kasuga, Fukuoka 816-8580, Japan

• Itakura Masaru

  Department of Applied Science for Electronics and Materials, Kyushu University, Kasuga, Fukuoka 816-8580, Japan

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