[22p-P07-1~67] 17 Nanocarbon and Two-Dimensional Materials (Poster)

[22p-P07-50] Analysis of the shoulder peak of Raman spectrum of CVD-grown multilayer hBN

〇Takara Okonai¹, Pablo Solis-Fernandez², Fukamachi Satoru², Hiroki Ago^1,2 (1.Kyushu Univ., 2.Kyushu Univ. GIC)

Keywords:

hexagonal boron nitride,Raman spectroscopy,Chemical vapor deposition

Mountain-like triangular grains are obtained when multilayer hBN is synthesised by CVD using borazine (B₃N₃H₆) as a precursor and Fe-Ni alloy foil as a catalyst. hBN Raman spectrum shows an E_2g band at 1367-1370 cm^-1 due to in-plane vibrations, while a shoulder peak at higher wavenumbers is often observed in the mountain-like grains together with the usual E_2g band. In this study, we focused on this shoulder peak and analysed it.