Molecular engineering of organic sensitizers containing indole moiety for dye-sensitized solar cells
作者:Duckhyun Kim、Moon-Sung Kang、Kihyung Song、Sang Ook Kang、Jaejung Ko
DOI:10.1016/j.tet.2008.08.045
日期:2008.11
Three organic dyes, JK-77, JK-78, and JK-79 containing indole unit are designed and synthesized. Nanocrystalline TiO2 dye-sensitized solar cells were fabricated using these dyes. Under standard global AM 1.5 solar condition, the JK-79 sensitized solar cell gave a short circuit photocurrent density of 13.62 mA cm−2, open-circuit voltage of 0.705 V, and a fill factor of 0.74, corresponding to an overall
设计并合成了含有吲哚单元的三种有机染料JK-77,JK-78和JK-79。使用这些染料制备了纳米晶TiO 2染料敏化太阳能电池。在标准的全球AM 1.5太阳能条件下,JK-79敏化太阳能电池的短路光电流密度为13.62 mA cm -2,开路电压为0.705 V,填充系数为0.74,对应于总转换效率η为7.18%。我们发现,由于较高的V oc,JK-79的η高于其他两个电池的η。改进后的V oc 该值归因于由于长烷基链的阻断作用而导致的暗电流的抑制。