1990
DOI: 10.1295/polymj.22.593
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Preparation and Photocurrent Properties of Tin Dioxide Electrode Modified by Polyimide Lagmuir-Blodgett Films Possessing Tetraphenylporphyrin Unit

Abstract: ABSTRACT:Polyimide Langmuir-Blodgett (LB) film containing tetraphenylporphyrin (TPP) unit was newly prepared on the surfaoe of tin dioxide electrode by "Precursor method" (Electrode I), and the generation ofphotocurrent was measured by the wet system. The photocurrent spectrum obtained was very similar in shape to the absorption spectrum of the LB film. The quantum efficiency of the electrode modified by one layer of the polyimide LB film was 0.178, and the values decreased with increasing the number of layers… Show more

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Cited by 18 publications
(4 citation statements)
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“…5,10-Bis(4-aminophenyl)-15,20-diphenylporphyrin (cis-DATPP, Scheme 2) DATPP was synthesized with the standard procedure in the literature [20]. Benzaldehyde (Nacalai Tesque), p-nitrobenzaldehyde (Nacalai Tesque), and pyrrole (Wako Pure Chemical) were reacted in propionic acid.…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…5,10-Bis(4-aminophenyl)-15,20-diphenylporphyrin (cis-DATPP, Scheme 2) DATPP was synthesized with the standard procedure in the literature [20]. Benzaldehyde (Nacalai Tesque), p-nitrobenzaldehyde (Nacalai Tesque), and pyrrole (Wako Pure Chemical) were reacted in propionic acid.…”
Section: Methodsmentioning
confidence: 99%
“…So far, many attempts have been made to realize the artificial highly efficient photoenergy conversion systems by using molecular arrays [3][4][5][6][7][8][9][10], dendrimer [11,12], self-assembled monolayers (SAM) [13,14], and LB films [15][16][17][18][19][20][21][22][23][24][25]. Among these systems, the LB film is a promising candidate because of its well-defined nanostructure and wide choice of suitable chemicals from a huge number of organic materials.…”
Section: Introductionmentioning
confidence: 99%
“…Takimoto et al 7 have found that polyimides consisting of thiophenylene moieties are photosensitive in the visible region. Nishikata and co-workers 8 have reported that SnO 2 modified with a monolayer of polyimide-containing porphyrin moieties possesses a photocurrent quantum efficiency of 17.8%.…”
Section: Introductionmentioning
confidence: 99%
“…have found that polyimides consisting of thiophenylene moieties are photosensitive in the visible region. Nishikata and co-workers have reported that SnO 2 modified with a monolayer of polyimide-containing porphyrin moieties possesses a photocurrent quantum efficiency of 17.8%. We have investigated the electrophotographic properties of poly(metal-phthalocyanine)imide coatings and Langmuir−Blodgett films and confirmed that these polyimide films have high photosensitivity. , In this work, a series of copolyimides (CPIs) containing tetraphenylporphyrin (TPP) and carbazole (Cz) units were synthesized.…”
Section: Introductionmentioning
confidence: 99%