| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 가을 (10/30 ~ 11/01, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
23권 2호 |
| 발표분야 |
포스터_에너지저장·변환 |
| 제목 |
Characterization of SnSe(1–x)Sx (0≤x≤1) Photovoltaic Materials by Polarized Raman Spectroscopy |
| 초록 |
Earth abundant, low-cost & low-toxic p-type semiconductor materials such as SnS(e) have gained interests in photovoltaic applications due to high optical absorption coefficient & great electrical properties. In this study, we report polarized Raman results of anisotropic SnSe(1-x)Sx (0≤x≤1), where six excitation energies were used. First, we show that like SnS(e) where several Ag & B3g modes are observed in backscattering geometry, several SnS(e)-like Ag & B3g are observed in parallel & cross polarization configurations in the materials of 0＜x＜1. Each observed Ag & B3g modes agree well with group theory analysis to exhibit interesting anisotropic properties with two- & four-fold symmetry for Ag & B3g, respectively. Secondly, insights into excitation energy and polarization dependences of Raman spectra are demonstrated. Finally, one- & two-mode behaviors being observed in the alloys are discussed. |
| 저자 |
Tharith Sriv1, Thi M. H. Nguyen2, Van Q. Nguyen2, 조성래2, 정현식1
|
| 소속 |
1서강대, 2울산대 |
| 키워드 |
PV materials; Raman; secondary phases; SnS; SnSe; alloys
|
| E-Mail |
|
