<i>meso</i>-Diphenylbacteriochlorins: Macrocyclic Dyes with Rare Colors for Dye-Sensitized Solar Cells

We herein report the synthesis, UV–vis absorption, fluorescence emission, and redox properties of three novel <i>meso-</i>diphenylbacteriochlorins. Significantly, we show that substituents at the meso-positions of an air-stable bacteriochlorin can be manipulated for the first time. With proper design, this allows tailor-made bacteriochlorins to exhibit suitable properties for a chosen application. As an example, photovoltaic properties of two such bacteriochlorins in dye-sensitized solar cells are investigated. The results show that the bacteriochlorin dyes outperform a reference porphyrin dye. Intriguingly, the anodes sensitized with the new dyes display rare colorsblue and pink

Cost-Effective Anthryl Dyes for Dye-Sensitized Cells under One Sun and Dim Light

A series of anthracene-based organic dyes were prepared via cost-effective synthetic procedures for dye-sensitized cell application. UV–visible and fluorescent spectra, electrochemical properties, and photovoltaic performance of the dyes were studied. Under one sun (100 mW/cm²), the AN-3 small cell outperforms others in the series. Under a dim light condition, the AN-3 modules showed PCE comparable to that of the Z907 modules. After optimizing the synthetic procedure, we found that AN-3 can be manufactured at a fairly low price