Abstract
It opens the door to many optoelectronic and photonic applications. Here, synthesized TiO2 was deposited on Ni(0,8,10,12%) doped ZnO using two different methods; TiO2 was coated on Ni(0,8,10,12%) prepared by dip coating. 12%) doped on top of ZnO, and Ni-doped ZnO films were grown by spray pyrolysis. Analysis of surface structure was conducted using Atomic Force Microscopy, scanning electron microscopy and microscopic Raman spectroscopy. Nickel doping was investigated by EDS analysis to ensure that the incorporation of dopants does not form a second phase. In addition, spectroscopic measurements including UV–Vis absorption and photoluminescence were performed. Preliminary results show that Ni doping reduces the absorption of TiO2/ZnO in the visible region. The carbon content is shown in the form of photoluminescence with a maximum of green, orange and red. Therefore, TiO2/Ni-doped ZnO heterostructures can also be used to exploit these findings in nanophotonics applications.
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This work has been funded by the Complutense University of Madrid- Banco Santander via project UCM-Santander 2019 (PR87/19-22613) and Complutense University- Comunidad de Madrid via project PR65/19-22464 and the Spanish Ministry of Science, Innovation and Universities via project MINECO/FEDER-MAT2015-65274-R.
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The authors confirm contribution to the paper as follows: study conception and design: AEH, PFS and EB data collection: HB, analysis and interpretation of results: AEH, MH, AO, AL and MD, draft manuscript preparation: AEH, KN and MH. All authors reviewed the results and approved the final version of the manuscript.
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Haimeur, A.E., Hammi, M., Sánchez, P.F. et al. Tuning the TiO2/ZnO heterostructures emissions through nickel doping for intriguing optoelectronic and photonic applications. Opt Quant Electron 55, 1190 (2023). https://doi.org/10.1007/s11082-023-05496-z
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DOI: https://doi.org/10.1007/s11082-023-05496-z