Observation of persistent photoconductivity at room temperature in ferrocene-doped poly(methyl methacrylate) thin films containing chloroform molecules |
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| Affiliation: | 1. Department of physics, University of Science and Technology of China, Hefei 230026, PR China;2. Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, PR China;3. Key Laboratory of Strongly-Coupled Quantum Matter Physics, Chinese Academy of Sciences, University of Science and Technology of China, Hefei, Anhui 230026, PR China;1. Cátedra de Química General, Instituto de Química Inorgánica, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, 4000, Tucumán, Argentina;2. Departamento Académico de Química, FCEyT, CIBAAL-UNSE-CONICET, Av. Belgrano Sur 1912, 4200, Santiago del Estero, Argentina;3. Laboratorio de Fotofísica y Espectroscopia Molecular Nº401, Av. Universidad #330, Campus Curauma, Valparaíso, Pontificia Universidad Católica de Valparaíso, Chile;1. Department of Chemistry & Biochemistry, University of South Carolina, Columbia, SC 29208, United States;2. Department of Chemical & Biomolecular Engineering, University of Houston, Houston, TX 77204, United States;1. College of Petroleum Engineering, Liaoning Shihua University, Fushun 113001, PR China;2. School of Renewable Energy, Shenyang Institute of Engineering, Shenyang 110136, PR China;3. Department of Physics, Beijing Normal University, Beijing 100875, PR China;4. College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun 113001, PR China |
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| Abstract: | Persistent photoconductivity has been observed at room temperature (300 K) in solution cast ferrocene-doped poly(methyl methacrylate) thin films, prepared from chloroform and the mixture of solvents chloroform and benzene. The maximum photoinduced current, the buildup time and decay time of persistent photocurrent increases with the increasing amount of chloroform present in the film as well as the duration of photoexcitation. The buildup and decay kinetics have been studied. Our results indicate that the photooxidation of ferrocene in the presence of chloroform in the film leads to a photocurrent persistent for a longer period at room temperature. |
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