NT-Polymer Composites in Photoelectrochemical Devices

Kamat et al. have shown that the composite of protonated porphyrin (H4P 7 and SWNTs form rod structures by sonication that disperses well in acidified THE [110]. In addition, when photocurrent measurements were performed using the IT0/Sn02/SWNT-H4P as a photoanode, under the standard three-electrode conditions, a maximum IPCE of 13% was obtained at a bias potential of 0.2 V vs. SCE. 

In this manner, layer-by-layer approaches using van der Waals and electrostatic interactions are universal and can be extended to the combination of SWNTs with various photoactive molecules. Hopefully, optimization of the molecular structure would achieve a further improvement in the photocurrent generation efficiency. 

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