| 학회 | 한국재료학회 |
| 학술대회 | 2021년 가을 (11/24 ~ 11/26, 경주 라한호텔) |
| 권호 | 27권 2호 |
| 발표분야 | C. 에너지 재료 분과 |
| 제목 | Morphology Control of VTD-SnS Absorber Layer by Optimizing Growth Conditions and its Effect on Performance of Thin-Film Solar Cell |
| 초록 | Cost-effective and highly efficient photovoltaic devices are the primary research agenda among researchers. The development of energy materials from an infinite source of clean energy is still limited because of the high cost of power generation. Tin monosulfide (SnS) has been researched widely as a good candidate for the earth-abundant photovoltaic absorber. High optical absorption coefficient and direct bandgap of ~1.3 eV make SnS promising material for photovoltaic solar energy conversion. Growth of SnS as an absorber layer in a solar cell can be achieved by vapor phase deposition (VTD) method which is an auspicious technique to get uniform film for device applications. Despite several advantages of SnS, the growth of pure-phase SnS is challenging during VTD. Growth of secondary phases such as SnS2 and Sn2S3 along with the primary phase results in deteriorating the performance of solar cell devices. In the present work, SnS films were deposited by VTD where SnS powder was used as a precursor material. SnS powder was placed at the centre and substrate at 10 cm downstream of the single-zone horizontal furnace. Pressure and deposition temperature has been optimized to get pure-phase SnS film. Morphological studies have been performed by using a scanning electron microscope and the crystallization phase has been investigated by X-ray diffraction (XRD). Glass/Mo/SnS/CdS/ZnO/AZO/Ni/Ag solar cell has been fabricated to explore the performance by measuring the J-V characteristics. The fabricated thin-film solar cell device shows the highest stability with ~3.19% efficiency. |
| 저자 | Indu Sharma1, Jae Yu Cho2, Jaeyeong Heo3 |
| 소속 | 1Department of Material Science and Engineering, 2and Optoelectronics Convergence Research Center, 3Chonnam National Univ. |
| 키워드 | Tin Sulfide; Vapor transport deposition; Absorber; Thin-film; Solar cell |
