The AN-11 dye is an anthracene-based dye. With a relatively simple chemical structure, AN-11 absorbs light at 528 nm and its solution appears red. Surprisingly, DSSCs sensitized with AN-11 show a very black color. We addressed this interesting phenomenon. For indoor applications, we examined a large module (active area = 26.8 cm2) sensitized with the AN-11 dye, along with the Z907 dye for comparison. Our study shows that overall efficiency (η) of the AN-11 module is superior to that of the Z907 counterpart, approaching 12% under 1000 Lux of T5 light.
The LS-01 and LS-11 dyes are air-stable bacteriochlorins with a push-pull chemical design. Photovoltaic measurements of our first generation bacteriochlorin dyes show that LS-01 (η = 4.67 %) and LS-11 (η = 5.36 %) significantly outperform the reference porphyrin dye, H2PE1, (η = 2.06 %) under one-sun irradiation. Intriguingly, the anodes sensitized with the LS-01 and LS-11 dyes give rise to pink and blue colors, respectively.
References:
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Acknowledgments: This work was supported by the MOST, Taiwan, ROC.