Carboxyphenyl metalloporphyrins as photosensitizers of semiconductor film electrodes. A study of the effect of different central metals
Article Abstract:
Free-base 5-(4-carboxyphenyl)-10,15,20-tris(4-methylphenyl) porphyrins (P) and its complexes with Zn(II), Pd(II), Cu(II), and Ni(II) are designed and synthesized in order to use as spectral sensitizers in photoelectrochemical cells. Photocurrent quantum yields increase as the dye ground-state oxidation potential becomes more anodic and this effect could be exploited as a design element in the driving off new and better sensitizers for high-efficiency solar cells involving porphyrins and related dyes.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
User Contributions:
Comment about this article or add new information about this topic:
Photosensitization of thin SnO2 nanocrystalline semiconductor film electrodes with metallodiporphyrin
Article Abstract:
A porphyrin dyad and its structural components as photosensitizing adsorbates on nanocrystalline SnO2 films, are studied to extend the photoresponse of large band gap semiconductor. The fact that in generation of photoelectrical effects the dyad is less effective in comparison with porphyrin is explained considering that the metallized porphyrin enhances the back electron transfer process, producing low photocurrent yield.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2000
User Contributions:
Comment about this article or add new information about this topic:
Electrogenerated chemiluminescence. 81. Influence of donor and acceptor substituents on the ECL of a spirobifluorene-bridged bipolar system
Article Abstract:
The electrochemistry and radical ion annihilation electrogenerated chemiluminescence of spirobifluorene-bridged bipolar systems containing 1,3,4-oxadiazole-conjugated oligoaryl and triarylamine substituents were investigated. The stability of the oxidized spirobifluorene was improved by functionalization with triaryl centers.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Cation migration in zeolites: an in situ powder diffraction and MAS NMR study of the structure of zeolite Cs(Na)-Y during dehydration
- Abstracts: An exploration of theoretical and experimental electron density distributions and SiO bonded interactions for the silica polymorph coesite
- Abstracts: The proximal hydrogen-bonded residue controls the stability of the compound II intermediate of peroxidases and catalases
- Abstracts: Synthesis and excited-state photodynamics in perylene-porphyrin dyads 2. Effects of porphyrin metalation state on the energy-transfer, change-transfer, and deactivation channels
- Abstracts: Enthalpy-entropy compensation in the effects of urea on hydrophobic interactions. Effect of urea and alkylureas on micelle formation by a nonionic surfactant with short hydrophobic tail at 25 degree C