http://blogs.najah.edu/author/emp_2154 An-Najah Blogs :: en-us Wed, 24 Apr 2024 04:09:20 IDT Wed, 24 Apr 2024 04:09:20 IDT [email protected] [email protected] http://blogs.najah.edu/staff/emp_2154/article/n-GaAs-Band-Edge-Repositioning-by-Modification-with-MetalloporphyrinPolysiloxane-MatricesPublished ArticlesTetra-4-pyridylporphyrinatomanganeseIIIsulfate MnP in the forms of MnIII and MnII mixture was embedded into a polysiloxane polymer matrix and attached to the surfaces of n -GaAs wafers The n-GaAspolymerMnP system was annealed under nitrogen and used for photoelectrochemical study in waterLiCIO4FeCN63-FeCN64 system The results indicated a positive shift in the value of the flat-band potential of the semiconductor due to MnP This was manifested by shifting the values of the dark-current onset potential and the photo-current open-circuit potential towards more positive values These findings are potentially valuable in future applications of solar energy in hydrogen and oxygen production from water Active and Passive Electronic Components Volume 26 2003 Issue 1 Pages 11-21doi:101155APEC2611 http://blogs.najah.edu/staff/emp_2154/article/Metalloporphyrinpolysiloxane-modified-n-GaAs-surfaces-effect-on-photoelectrochemical-efficiency-and-surface-stabilityPublished ArticlesTetra-4-pyridylporphyrinatomanganeseIIIsulfate as an MnIIIMnII ion mixture was embedded into a polysiloxane polymer matrix and attached to the surfaces of the n-GaAs electrode The n-GaAspolymerMnP system was annealed under nitrogen and used for a photoelectrochemical study in a waterLiClO4FeCN63FeCN64 system The values of short-circuit currents measured after minutes of illumination were significantly enhanced by modification The modified electrode surfaces were more stable to degradation in the dark and under illumination than the unmodified ones Furthermore the modified electrodes showed higher light-to-electricity conversion efficiency than the unmodified ones The methodology described here is advantageous in the sense that the semiconductor electrode properties can be enhanced in more than one aspect at the same time Journal of Electroanalytical Chemistry Volume 527 Issues 1-2 31 May 2002 Pages 47-55 http:dxdoiorg101016S0022-07280200680-0