| 학회 | 한국공업화학회 |
| 학술대회 | 2019년 가을 (10/30 ~ 11/01, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 | 23권 2호 |
| 발표분야 | 포스터_에너지저장·변환 |
| 제목 | Enhanced Photovoltaic Properties in Planar Sb2S3 Solar Cells by TiO2 Surface Treatment Using Cs2CO3 |
| 초록 | Antimony sulfide (Sb2S3) has attracted attention as an absorber material due to its suitable band gap (~1.65 eV), high absorption coefficient (＞105 cm-1), high dielectric constant, and good band alignment with various hole transport layers, in addition to its cost effectiveness, low toxicity, and excellent air stability. Here, we reported a highly effective surface treatment method using cesium carbonate (Cs2CO3) for planar Sb2S3 solar cells. A power conversion efficiency (PCE) of 3.97% was achieved under AM1.5G illumination using a planar device consisting of FTO/Cs2CO3/TiO2/Sb2S3/P3HT/Au, which is significantly higher than that of the control planar device with blank TiO2 (2.83%). It is found that surface treatment using a Cs2CO3 solution can shift the work function of TiO2 upward and reduce its surface roughness. This work was supported by the DGIST R&D Programs of the Ministry of Science, ICT & Future Planning of Korea (19-ET-01). |
| 저자 | 김욱현, 김대환, 우성호 |
| 소속 | 대구경북과학기술원 |
| 키워드 | antimony sulfide; cesium carbonate; titanium oxide; surface treatment |
