[20a-H103-1~11] 6.2 Carbon-based thin films

[20a-H103-5] Synthesis of new carbon materials containing Bi by solid source immersion CVD

〇(D)Takahiro Tamura¹, Takashi Yanase², Taro Nagahama², Toshihiro Shimada² (1.Hokkaido Univ., 2.Hokkaido Univ of eng)

Keywords:nanodiamond,microwave plasma CVD,bismuth

We used an unique technique to examine the possibility to dope bismuth to the diamond. we used "Solid source immersion technique" to supply high-density bismuth species. Molecule-like Raman spectra were observed from the film, which suggests the existence of various carbon nanostructures. We found nanoparticles of an unusual carbon allotrope (Chaoite) at grain boundaries of diamond microcrystals. Most of the bismuth was included among the nanoparticles.