| 학회 | 한국고분자학회 |
| 학술대회 | 2004년 가을 (10/08 ~ 10/09, 경북대학교) |
| 권호 | 29권 2호, p.593 |
| 발표분야 | 기능성 고분자 |
| 제목 | Quasi-solid-state electrolyte based on sol-gel reaction in application for dye-sensitized solar cells. |
| 초록 | Gratzel’s discovery that ruthenium bipyridyl derivatives can efficiently sensitize titanium dioxide nanocrystalline films by visible light and subsequent construction of the dye-sensitized photoelectrochemical cell.1 However, the liquid electrolyte present in DSSCs creates long-term sealing problems. For this reason, there has been a recent effort to replace the liquid electrolyte by a solid electrolyte.2 In this research, the electrolyte gel was synthesized by the sol-gel route using the amide precursors. The precursor was composed of a poly propylene oxide chain end-capped with triethoxysilane groups. The gelation was attempted using week acid by a common and typical sol-gel procedure. By the sol-gel reaction, it was became quasi-solid electrolyte with LiI and I2 salts. We reported that dye-sensitized solar cell using gel electrolyte was demonstrated comparable characteristics as the cell with liquid electrolyte at various light intensity. The comparable characteristics of the quasi-solid-electrolyte solar cells were attributed to good contact of the electrolyte with the surface dye molecules. To increase the conductivuty, I added to plasticsizer (PC and EC) into the electrolyte from the 10 wt% to 40 wt%. Approximately, the overall efficiency is the 3%. (a) (b) Fig. 1 SEM image of cross-section of DSSC. (a) before injection of the gel electrolyte. (b) after injection of the gel electrolyte Referencs 1. Brian O'Regan, Michawl Gratzel, Natrue, 353, 737 (1991) 2. (a)Cao, F.; Oskam, G.; Searson, P.C. J. Phys. Chem. 99, 17071 (1995) (b) Nogueira, A.F; Durrant, J.R.;De Paoli, M.A. Adv. Mater. 13, 826, (2001) (c) Stathatos, E.; Lianos, P.;Lavrencic-Stangar, U.; Prel, B. Adv. Mater. 14, 354. (2002) |
| 저자 | 김영제, 이재석 |
| 소속 | 광주과학기술원 |
| 키워드 | Quasi-solid electrolyte; dye-sensitized solar cells |
