Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/87425
Título: | Resistive switching behavior in ZnO:Ca thin films deposited by a pulsed laser deposition technique |
Autor(es): | Mejri, I. H. Omri, K. Ghiloufi, I. Silva, José Pedro Basto Gomes, M. J. M. El Mir, L. |
Palavras-chave: | Ca-doped ZnO nanoparticles ZnO Ca thin films Pulsed laser deposition Resistive switching Sol-gel ZnO:Ca thin films |
Data: | 2023 |
Editora: | Springer |
Revista: | Applied Physics A: Materials Science and Processing |
Citação: | Mejri, I. H., Omri, K., Ghiloufi, I., Silva, J. P. B., Gomes, M. J. M., & El Mir, L. (2023, February 24). Resistive switching behavior in ZnO:Ca thin films deposited by a pulsed laser deposition technique. Applied Physics A. Springer Science and Business Media LLC. http://doi.org/10.1007/s00339-023-06508-1 |
Resumo(s): | Calcium-doped ZnO (CZO) nanopowders were synthesized using the sol–gel method. The structural characteristics were investigated by X-ray diffraction (XRD) and the analysis reveals that our samples are crystalized in a wurtzite hexagonal structure. The morphological properties and the chemical composition of the nanoparticles were studied by transmission electron microscopy (TEM), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDX). The obtained powders are stoichiometric with crystallites in a nanometric scale aggregated in micrometric particles. Then, pulsed laser deposition (PLD) technique was used to grow Ca-doped ZnO thin films with different doping concentrations (1, 3, and 5%), on p-type Si substrates. The Ca doping effect on the electrical properties of the CZO films was investigated by current–voltage characteristics. A resistive switching (RS) effect was observed in the ITO/ZnO:Ca/Au structures. The RS behavior is dependent on the Ca doping concentration. The charge transport mechanisms of the devices were studied. In the positive bias voltage region, the transport is dominated by Ohmic and space-charge limited conduction mechanisms under low and high electric fields, respectively. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/87425 |
DOI: | 10.1007/s00339-023-06508-1 |
ISSN: | 0947-8396 |
e-ISSN: | 1432-0630 |
Versão da editora: | https://link.springer.com/article/10.1007/s00339-023-06508-1 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CDF - FMNC - Artigos/Papers (with refereeing) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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63-Applied Physics A 129 (2023) 210.pdf | 1,46 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons