Porphyrin- or Bacteriochlorin-sensitized Solar Cell Studies

• Main Authors: Shr-Yau Lin, 林士堯
• Other Authors: Chin-Yao Lin
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/98560247855475755009

碩士 === 國立暨南國際大學 === 應用化學系 === 105 === This thesis studies to dye-sensitized solar cells. The first part investigates the effect of different anchoring group on the stability and efficiency of the porphyrins. The new dyes are based on a reported dye LD14 with a variety of anchoring groups. For the LWP24 dye, pyridine is used as the anchoring group. For the LWP25 dye, hydroxamic acid is used as the anchoring group. For the LWP26 dye, acetylacetone (acac) is used as the anchoring group. The results show a trend of LD14 (8.83 %) > LWP25 (5.45 %) > LWP24 (3.11 %) > LWP26 (2.09 %). Although not as efficient as LD14, LWP25 displays a better stability under acidic or basic environment. The second part studies co-sensitization of bateriochlorin dyes (LS-01, LS-11) with a porphyrin dye LD14. Although the IPCE spectrum of the devices reaches up to 800 nm, the spectrum lacks responses in the 500 ~ 600 nm region. As a result, co-sensitized device current value is reduced and the efficiency is also reduced. LS-01/LD14 overall efficiency of 6.09%, and LS-11/LD14 efficiency of 5.88%. The efficiency of the co-sensitization can not exceed LD14 (8.96%).