کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1506146 | 993782 | 2009 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: A new composite electrode of Ni-Ferrite/TiOx/Si(111): Preparations and photoelectrochemical studies A new composite electrode of Ni-Ferrite/TiOx/Si(111): Preparations and photoelectrochemical studies](/preview/png/1506146.png)
A composite electrode of Ni-ferrite/TiOx/Si(111) was synthesized by grafting Ni2+Fe2+Fe3+–LDH–TiCl3 (LDH: Layered Double Hydroxides) on n-Si(111) surface and calcined under 1100 °C. Photoelectric research results indicated that the electrode had good photovoltaic effects in an electrolyte solution containing 7.6 M HI and 0.05 M I2, while platinum plate was used as counter-electrode. The observed photo-voltages (Upv) and photocurrent densities (jpc) of the electrode were at −0.75 V and 5.35 mA/cm2, respectively. Compared with electrodes of oxidized n-Si(111) crystal and n-Si(111) wafer covered by Ni-ferrites, jpc of the electrode Ni-ferrite/TiOx/Si(111) was increased greatly.
Ni2+Fe2+Fe3+–LDH–TiCl3 was grafted on n-Si(111) surface in bond-bridge of –(TiO)x–, and a composite electrode of Ni-ferrite/Si was obtained by calcinations of the corresponding LDH/Si assembly. Research results show that the composite electrode has good photovoltaic effects in 7.6 M HI/0.05 M I2 solution.Figure optionsDownload as PowerPoint slide
Journal: Solid State Sciences - Volume 11, Issue 6, June 2009, Pages 1170–1175