| 학회 | 한국재료학회 |
| 학술대회 | 2020년 가을 (11/18 ~ 11/20, 휘닉스 제주 섭지코지) |
| 권호 | 26권 1호 |
| 발표분야 | C. 에너지 재료 분과 |
| 제목 | Efficiency improvement study of DSSC(dye-sensitized solar cell) composed of nanocellulose-templated TiO2 |
| 초록 | A solar cell has a strength since it utilizes clean and boundless solar energy, which can directly convert solar energy by the most efficient form of energy. Thus, a solar cell can be adapted to various areas and expected to be the backbone of alternative energy and eco-friendly industry. Especially, a DSSC(dye-sensitized solar cell) field is actively studied these days because it can be composed of inexpensive and environment-friendly materials than other existing solar cells. A DSSC is a versatile solar cell since it can be activated on cloudy(weak light) days. However, its photoelectric transformation efficiency is markedly low than Si-based solar cells, approximately 4~7%. In this study, we fabricated the titania(TiO2) by an open-channeled micropore structure to enhance the efficiency of DSSC maximizing the dye-absorption ability. The medium to induce the porous structure is cellulose nanocrystal derivative which is a natural ingredient. By using cellulose, an additional process to remove the template is unnecessary since cellulose could be self-combusted at calcination temperature. Therefore, a specific surface area of titania was optimized up to 230 m2/g. We mainly analyzed the correlation between the surface area, crystallinity, absorbance of titania, and DSSC materials affecting the efficiency of DSSC. By fabricating the nano-cellulose templated titania and utilizes to photovoltaic materials, we tried to adapt the novel manufacturing process of DSCC. |
| 저자 | 윤용희1, 정철환1, 전은정1, 권재경2, 이원희1 |
| 소속 | 1세종대, 2국립산림과학원 목재화학연구과 |
| 키워드 | <P>DSSC; TiO<SUB>2</SUB>; Cellulose nanocrystal; Efficiency</P> |
