2018年第79回応用物理学会秋季学術講演会

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一般セッション(ポスター講演)

13 半導体 » 13.9 化合物太陽電池

[19p-PB5-1~14] 13.9 化合物太陽電池

2018年9月19日(水) 16:00 〜 18:00 PB (白鳥ホール)

16:00 〜 18:00

[19p-PB5-6] Nanostructure evaluation of CZTS-film surface by tip-enhanced Raman scattering

〇(DC)RAUL RAMOS PAUCAR1、KAZUKI WAKITA1、YONG-GU SHIM2、NAZIM MAMEDOV3 (1.Chiba Inst. of Tech.、2.Osaka Pref. Univ.、3.Inst. of Phys. Az. Nat. Acad.)

キーワード:chalcogenide solar cells, Compound solar cells, TERS

Tip-enhanced Raman spectroscopy (TERS) is a type of near-fieled optical spectroscopy.TERS uses a metal-coated tip that acts as a plasmonic antenna to enhance the Raman scattering from a nanometric sample. We can determine the spectrum of a small volume of sample in the close to the tip.
In this work, we present TERS imaging of Cu2S nanophases on Cu2ZnSnS4 (CZTS) films deposited by pulse laser deposition method as we will show . In this observation, we find the Cu2S phase is distinguished at a high resolution of approximately 10 nm. In conclusion, we successfully observed the phases on CZTS films with a high resolution on the nanoscale using TERS.