摘要： The intriguing properties of extremely efficient delocalization and migration of excitons in chlorophyll (Chl) J-type aggregates have inspired intense research activities toward their structural understanding, functional interpretation and mimicry synthesis. Herein, we demonstrated the J-aggregates of zinc methyl 3-devinyl-3-hydroxymethyl-pyropheophorbide a (ZnChl-1) generated by spin-coating method for the application as a hole transporter in titania-based solar cells using methyl trans-32-carboxypyropheophorbide a (H2Chl-2) or its zinc complex (ZnChl-2) as the sensitizer. The effective carrier mobility of the J-aggregates films was determined by the organic field-effect transistor to be 6.2 × 10−4 cm2 V−1 s−1. Solar cells sharing the architecture of FTO/H2Chl-2 or ZnChl-2 on TiO2/(ZnChl-1)n/Ag were fabricated and the factors that presumably determine their photovoltaic performances were discussed. The photovoltaic devices studied herein employing inexpensive and pollution-free biomaterials provide a unique solution of utilizing solar energy with a care of the important environmental issue. [Display omitted] •Two different chlorophyll-sensitized solar cells are fabricated and compared.•Cost-effective ZnChl-1 is used as the hole transporter.•The carrier mobility of ZnChl-1 is estimated and confirmed.•We provided a new possibility of using bio-resources for electricity production. 出版者： Elsevier B.V 出版日期： 2015-11-30 出處： Journal of Power Sources, 2015-11, Vol.297, p.519-524 資源來源： ScienceDirect (Elsevier) Journals 版權： 2015 Elsevier B.V. 識別號： ISSN: 0378-7753 識別號： EISSN: 1873-2755 識別號： DOI: 10.1016/j.jpowsour.2015.08.045
