Role of defects and their complexes on the dependence of photoconductivity on dark resistivity of single ZnO microwires
| Autor: | G. Bridoux, J. M. Ferreyra, Silvia P. Heluani, D. J. Zamora, M. Villafuerte, M. Meyer |
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| Rok vydání: | 2017 |
| Předmět: |
ZnO microwires
Materials science Photoconductivity Ciencias Físicas General Physics and Astronomy chemistry.chemical_element Protonation Dark resistivity 02 engineering and technology Trapping Zinc 01 natural sciences Oxygen purl.org/becyt/ford/1 [https] II-VI SEMICONDUTCORS Electrical resistivity and conductivity 0103 physical sciences Thermal PHOTOCONDUCTIVITY ELECTRICAL RESISTIVITY 010302 applied physics Condensed matter physics business.industry Física purl.org/becyt/ford/1.3 [https] 021001 nanoscience & nanotechnology Astronomía chemistry ZINC OXIDES FILMS Optoelectronics 0210 nano-technology business CIENCIAS NATURALES Y EXACTAS Recombination |
| Zdroj: | CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET SEDICI (UNLP) Universidad Nacional de La Plata instacron:UNLP |
| ISSN: | 1089-7550 0021-8979 |
| Popis: | We have studied the correlation between the photoconductivity and the dark resistivity of single ZnO microwires. We found that as-grown microwires with higher dark resistivities have higher photoconductivities. However, when the microwires are thermal treated in vacuum, this correlation is inverted. We have also analyzed the behavior of photoconductivity on protonated as-grown samples. We discuss the origin of these behaviors in terms of the interplay of oxygen and zinc vacancies and their complexes acting as recombination or trapping centers. Instituto de Física La Plata |
| Databáze: | OpenAIRE |
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