A coumarin-derivative dye sensitized nanocrystalline TiO2 solar cell having a high solar-energy conversion efficiency up to 5.6%

作者：Kohjiro Hara, Kazuhiro Sayama, Hironori Arakawa, Yasuyo Ohga, Akira Shinpo, Sadaharu Suga · 发表于：Chemical Communications · 年份：2001 · DOI：10.1039/b010058g · 被引用次数：603 · 研究领域：TiO2 Photocatalysis and Solar Cells、Advanced Photocatalysis Techniques、Advanced Nanomaterials in Catalysis

It is found that newly synthesized coumarin derivatives work as highly efficient photosensitizers for dye-sensitized nanocrystalline TiO2 solar cells producing a 5.6% solar-light-to-electricity conversion efficiency, the highest efficiency so far among organic dye-sensitized solar cells, with a short-circuit current density of 13.8 mA cm−2, an open-circuit photovoltage of 0.63 V, and a fill factor of 0.63 under standard AM 1.5 irradiation (100 mW cm−2).