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Apollony photonic sponge based photoelectrochemical solar cells

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Abstract

We have developed a quasi-fractal colloidal crystal to localize efficiently photons in a very broad optical spectral range; it has been applied to prepare dye sensitized photoelectrochemical solar (PES) cells able to harvest very efficiently photons from the ultraviolet (UV) and the visible (VIS) regions of the solar spectrum.

How to cite

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F. Ramiro-Manzano et al. Apollony photonic sponge based photoelectrochemical solar cells. Chem. Commun., 242-244 (2007). DOI: 10.1039/B613422J

Family name first

Ramiro-Manzano, F. et al. Apollony photonic sponge based photoelectrochemical solar cells. Chem. Commun., 242-244 (2007).

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Figures

Figure 1. Scheme of the 2D projection of an Apollony fractal distribution.

Source: F. Ramiro-Manzano et al., Chem. Commun., 242-244 (2007). Reproduced with permission from the Royal Society of Chemistry.

Figure 2. SEM images of titania nanoparticles arranged in a photonic-sponge architecture (a) or in a packed manner (b). One can see in (a) how the smaller cavities arrange in the regions between the larger ones. Scale bars: 1 μm.

Source: F. Ramiro-Manzano et al., Chem. Commun., 242-244 (2007). Reproduced with permission from the Royal Society of Chemistry.

Figure 3. Inverse of transmittance versus wavelength for a TiO2 thin film made of nanoparticles with a photonic-sponge topology (continuous line) and a plain film (dashed line).

Source: F. Ramiro-Manzano et al., Chem. Commun., 242-244 (2007). Reproduced with permission from the Royal Society of Chemistry.

Figure 4. (a) I–V characteristic of dye-sensitized photoelectrochemical solar cells under AM 1.5 conditions, and (b) photocurrent spectra for standard (dashed line) and photonic-sponge (continuous line) titania electrodes.

Source: F. Ramiro-Manzano et al., Chem. Commun., 242-244 (2007). Reproduced with permission from the Royal Society of Chemistry.

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