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http://nopr.niscpr.res.in/handle/123456789/31171| Title: | Photoelectrochemical studies of sprayed thin film n- ZnO/acetonitrile based photocell sensitized by rhodamine B |
| Authors: | Bahadur, Lal Pandey, J P |
| Issue Date: | Jan-1994 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Photoelectrochemical cell based on thin film ZnO electrode sensitized by rhodamine B (Rh B) has been studies in acetonitrile medium using hydroquinone as supersesitizer. Redox potentials of Rh B determined cyclic voltammetrically at Pt electrode in acetonitrile, coupled with the flat-band potential of ZnO electrode (obtained from Mott-Schottky plot) have been used to determine their respective energy levels. Stable photovolrage was found to be -260 mV. Quantum efficiency of the sensitized photocurrent at 550 nm wavelength of monochromatic light was found to be 6.5%, the highest ever reported for pure ZnO electrode sensitized by Rh B. Long-term stability of ZnO electrode in the medium of investigation has been tested and quite encouraging results have been obtained. |
| Page(s): | 53-59 |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Appears in Collections: | IJCT Vol.01(1) [January 1994] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCT 1(1) 53-59.pdf | 553.26 kB | Adobe PDF | View/Open |
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