Clean Technology 2010
Y.W. Kim, E. Cho, S.C. Choi, D.W. Lee
Pusan National University, KR
dye-sensitized solar cell, concentration, fresnel lens, coolant system
Dye-sensitized solar cell (DSSC) is extremely promising because it is made of low-cost materials and does not need elaborate apparatus to manufacture against the silicon solar cell. Accordingly, the DSSC is constantly researched globally. One of method that can be improved efficiency of solar cell is concentrating light. In order to develop high efficiency dye-sensitized solar cells, the concentration towards maximization of solar energy conversion efficiency has been investigated. In this study, and was concentrated by Fresnel lens. High temperature heat on concentration can decrease efficiency of solar cell so as cooling radiator was installed. Maximum concentrating ratio was 26 times of 1sun (2.6W/cm2). When the solar energy of High density was illuminated on DSSC, It was confirmed that temperature and concentrating ratio affect efficiency of DSSC. When high density light is illuminated in the DSSC using concentrating lens, conversion efficiency is reached up to 16.1%. The enhancement in overall device efficiency is a result of increased open circuit potential and short circuit current. If coolant system is used, it can help guarantee of stable performance of a high efficiency of DSSC at 45℃.