Chlorophylls monolayer assemblies

The phthalocyanines are still of some interest, and Ayers has interpreted the photoelectrochemistry of copper phthalocyanine in terms of the band-model for semiconductors. Menzel et alf have studied the photoconductivity and electrical field-induced fluorescence quenching in metal-free phthalocyanine films. Doping of the film increases charge-carrier photogeneration, and it seems likely that the mechanism is extrinsic, involving field-assisted exciplex dissociation. These are complicated materials, which are difficult to purify, and the mechanisms of carrier generation in polycrystalline and amorphous films are still obscure. The porphyrins and monolayer assemblies of chlorophyll on SnOj electrodes 2 72,273 ijggjj studied. 

Janzen, A. F., Bolton, J. R., Stillman, M. J. (1979). Photochemical electron transfer in monolayer assemblies. 1. Spectroscopic study of radicals produced in chlorophyll a/acceptor systems, J. Am. Chem. Soc., 101 6337. 

Janzen, A.F. and Bolton, J.R. (1979) Photochemical Electron Transfer in Monolayer Assemblies. 2. Photoelectric Behavior in chlorophyll a/Acceptor Systems,/. Am. Chem. Soc. 101,6342. 

Saga, Y. and H. Tamiaki (2004). Facile synthesis of chlorophyll analog possessing a disulfide bond and formation of self-assembled monolayer on gold surface. J. Pho-tochem. Photobiol. B 73(1-2), 29-34. 

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