Transient photopotentials at the cobalt-doped zinc oxide/electrolyte interface |
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| Affiliation: | 1. Department of Chemical Engineering, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece;2. Chemical Process & Energy Resource Institute, CPERI/CERTH, Thermi, Thessaloniki 57001, Greece;1. Analytical and Testing Center, School of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, China;2. State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum, Beijing 102249, China;3. College of Chemistry and Chemical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China;1. Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China;2. School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China;3. Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xi’an 710021, China;4. Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and Technology, Shaanxi University of Science and Technology, Xi’an 710021, China |
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| Abstract: | The time evolution of the pulsed-laser-induced photopotentials of pure and cobalt-sensitized ZnO electrodes is analyzed after 365 and 640 nm excitations. This analysis, as a function of various parameters, enables a determination of the influence of Co2+ ions and excitation wavelength on the kinetics of electron-hole recombination and electron transfer at the interface to be made. |
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