名古屋大学 · 工学
Takayuki Tokoroyama教授の研究室では、カーボン窒化物（CNx）などのナノ構造材料の摩擦・摩耗特性とその表面制御を、紫外線照射やナノ粒子を用いた分析技術を駆使して解明しています。特に、薄膜の化学組成や電子状態の変化が摩擦性能に与える影響を、XPSやAES、Raman分光法を応用して詳細に分析しています。また、表面増強ラマン散乱（SERS）を用いた高精度な深さ分解能分析技術の開発も進めています。
Figures are computed from collected data and may differ slightly.
ABSTRACT The influence of ultraviolet (UV) irradiation on low frictional performance of CN x coatings with 100 nm thickness having nitrogen contents of 9%, 14% and 19% deposited on Si(100) substrate by ion beam mixing was investigated in N 2 atmosphere environment. Three UV lights of 254, 312 and 365 nm were used to irradiate the surface of CN x / Si(100) for 60 min. The changes of N / C ratio and atomic binding energy in the coating were analysed using Auger electron spectroscopy and X‐ray phot
In general, Raman analysis is one of the useful candidates to obtain structure of carbonaceous coatings. To improve the depth resolution of Raman analysis, surface-enhanced Raman Scattering (SERS) using gold nanoparticles (Au nanoparticles: AuNPs) and Au sputtered particles were investigated. The analysis was conducted to approximately 1.7, 2.4, 4.7, and 10.0 nm thickness of carbon coatings on silicon substrate with a 532 nm incident wavelength laser. The results indicated that the underlying si
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