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Synthesis and thermoelectric/electrical characterization of electrodeposited SbxTey thin films |
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| Authors: | Jae-Hong Lim MiYeong Park Dong-Chan Lim Nosang V. Myung Jung-Ho Lee Young-Keun Jeong Kyu Hwan Lee |
| Affiliation: | 1. Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul 136-791, Republic of Korea;2. Department of Chemical Engineering, Hanyang University, Gyeonggido 426-791, Republic of Korea;3. Department of Otolaryngology, Asan Medical Center, Seoul 138-736, Republic of Korea;4. College of Medicine, University of Ulsan, Seoul 138-736, Republic of Korea;5. KU-KIST School, Korea University, Seoul 136-701, Republic of Korea;6. Department of Biochemistry and Cell Biology, School of Medicine, Cell and Matrix Research Institute, Kyungpook National University, Daegu 700-422, Republic of Korea;1. Acino AG, Miesbach 83714, Germany;2. Division of Physical Chemistry, Friedrich-Alexander University of Erlangen, Erlangen 91077, Germany;3. Division of Pharmaceutics, Friedrich-Alexander University of Erlangen, Erlangen 91077, Germany |
| Abstract: | SbxTey films were potentiostatically electrodeposited from acidic nitric baths at room temperature by controlling the applied potential. Near-stoichiometric Sb2Te3 thin films were obtained at applied potentials between ?0.15 and ?0.30 V vs. saturated calomel electrode (SCE). Post-annealing in a reducing environment resulted in an improvement in the crystal structure without the evaporation of the Te element. This result was indicated by a significant reduction in the electrical resistance and decrease in the FWHM of the main diffraction peaks. The power factor (σS2) increased from 44.2 to 372.1 μW/m K2 after annealing at 473 K. |
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