Synthesis, structure and photoelectric properties of selenide composites with in situ constructed Sb2Se3/NaSbSe2 heterojunction
| العنوان: | Synthesis, structure and photoelectric properties of selenide composites with in situ constructed Sb2Se3/NaSbSe2 heterojunction |
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| المؤلفون: | Donglou Ren, Xianghua Zhang, Hongli Ma, Peng-cheng Zhang, Zhuanghao Zheng, Michel Cathelinaud, Meng Wei |
| المساهمون: | Institut des Sciences Chimiques de Rennes (ISCR), 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), Shenzhen University [Shenzhen], Université de Rennes 1201804910786Centre National de la Recherche Scientifique, CNRS, 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) |
| المصدر: | Journal of the European Ceramic Society Journal of the European Ceramic Society, Elsevier, 2020, 40 (13), pp.4517-4526. ⟨10.1016/j.jeurceramsoc.2020.05.058⟩ Journal of the European Ceramic Society, 2020, 40 (13), pp.4517-4526. ⟨10.1016/j.jeurceramsoc.2020.05.058⟩ |
| بيانات النشر: | HAL CCSD, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Materials science, Band gap, Impedance spectroscopy, 02 engineering and technology, 01 natural sciences, chemistry.chemical_compound, Selenide, 0103 physical sciences, Materials Chemistry, [CHIM]Chemical Sciences, Composite material, Interface electric field, 010302 applied physics, Photocurrent, business.industry, Selenide composites, Heterojunction, Photo-electro-chemical (PEC) performance, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, Microstructure, Antimony selenide (Sb2Se3)-NaSbSe2 heterojunction, Dielectric spectroscopy, Semiconductor, chemistry, Ceramics and Composites, Grain boundary, 0210 nano-technology, business |
| الوصف: | International audience; Inorganic semiconductor heterojunctions have attracted extensive attention for technological applications owing to interface phenomena. In this work, selenide composites with in situ constructed Sb2Se3/NaSbSe2 heterojunctions with similar band gap width have been synthesized by conventional melt-quenching method. The microstructure and photoelectric properties of the composites were investigated at different NaSbSe2 contents. The study revealed that NaSbSe2 content has direct influences on the photoelectric performance of the composites by modifying the heterojunction size and the grain boundary resistance, as evidenced by scanning electron microscopy and impedance spectroscopy, respectively. The photocurrent density of Sb2Se3 with 2.5 and 5 mol% NaSbSe2 was approximately 180 times larger than that of the pure Sb2Se3 at a bias voltage of -1.5 V and under an illumination of 7 mW/cm2, due to an effective separation of photogenerated carriers through the interface electric field. Additionally, the composites exhibited an excellent stability even in 0.5 M LiClO4 aqueous electrolyte. |
| اللغة: | English |
| تدمد: | 0955-2219 |
| DOI: | 10.1016/j.jeurceramsoc.2020.05.058⟩ |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d2f5672a713eb586867c629c7e31c8d https://hal.archives-ouvertes.fr/hal-02893593/document |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....6d2f5672a713eb586867c629c7e31c8d |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 09552219 |
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| DOI: | 10.1016/j.jeurceramsoc.2020.05.058⟩ |