Thermally induced structural evolution and performance of Sb2Se3 films and nanorods prepared by an easy sputtering method
| Autor: | Jingting Luo, Ju-Guang Hu, Guangxing Liang, Xianghua Zhang, Hongli Ma, Zhongkuan Luo, Ping Fan, Bo Fan, Dongping Zhang, Zhuanghao Zheng |
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| Přispěvatelé: | Institut des Sciences Chimiques de Rennes (ISCR), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), 61404086, NSFC, National Natural Science Foundation of China, Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA) |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Band gap Analytical chemistry Nanotechnology 02 engineering and technology Photovoltaic effect Substrate (electronics) 010402 general chemistry 7. Clean energy 01 natural sciences law.invention law Sputtering Solar cell [CHIM]Chemical Sciences Nano-rods Thin film Renewable Energy Sustainability and the Environment Chalcogenide Sputter deposition 021001 nanoscience & nanotechnology Microstructure 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Sb2Se3 13. Climate action Nanorod 0210 nano-technology |
| Zdroj: | Solar Energy Materials and Solar Cells Solar Energy Materials and Solar Cells, 2018, 174, pp.263-270. ⟨10.1016/j.solmat.2017.09.008⟩ Solar Energy Materials and Solar Cells, Elsevier, 2018, 174, pp.263-270. ⟨10.1016/j.solmat.2017.09.008⟩ |
| ISSN: | 0927-0248 |
| DOI: | 10.1016/j.solmat.2017.09.008 |
| Popis: | An easy method of preparing well-crystallized Sb 2 Se 3 films and nanorods through magnetron sputtering was proposed, and their growth mechanism was examined. The microstructure, morphology, composition, and optical and electrical properties of the Sb 2 Se 3 films depended strongly on the substrate temperature ( T sub ). Sb 2 Se 3 films prepared at > 250 °C contained the orthorhombic phase without Sb 2 O 3 phase owing to the high-purity vacuum environment. Well-crystallized Sb 2 Se 3 films deposited at T sub = 325 °C showed compact grains with a bandgap of 1.23 eV and a high absorption coefficient of 10 5 cm −1 in the visible region. Photoelectrochemical measurements showed that Sb 2 Se 3 films were p-type semiconductors with excellent photoresponse. A clear photovoltaic effect with a power conversion efficiency (PCE) of 3.35% was measured for the first time by using the sputtering Sb 2 Se 3 films as absorbers in a photovoltaic solar cell. At T sub = 375 °C, highly uniform films with monodispersed Sb 2 Se 3 nanorods were obtained. The preferential orientation of the Sb 2 Se 3 crystals by self-organization was promoted by increasing T sub . By using the Sb 2 Se 3 nanorods as absorbers in a solar cell, good photoresponse and a PCE of 2.15% were achieved. |
| Databáze: | OpenAIRE |
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