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Room temperature ferromagnetism promoted by defects at zinc sites in Mn-doped ZnO
(Elsevier B.V., 2016-01-15)
The nature of the room temperature ferromagnetism in dilute magnetic oxides is still a matter of debate. However, there is a consensus that structural point defects play an important role to achieve a desired long range ...
Defect spectroscopy of single ZnO microwires
(American Institute Of Physics, 2014-04)
The point defects of single ZnO microwires grown by carbothermal reduction were studied by microphotoluminescence, photoresistance excitation spectra, and resistance as a function of the temperature. We found the deep level ...
Structural, optical and vibrational properties of ZnO:M (M=Al3+ and Sr2+) nano and micropowders grown by hydrothermal synthesis
(Elsevier Science SA, 2019-06)
Powders of ZnO and ZnO:M (M = Al3+ and Sr2+) with 1 and 4% of M nominal content were synthetized by a hydrothermal method in a diethanolamine (DEA) medium. The samples were studied by scanning electron microscopy (SEM), ...
Electronic and atomic structure of complex defects in Al- and Ga-highly doped ZnO films
(Elsevier, 2015)
Point defects in Ga- and Al-doped ZnO thin films are studied by means of first principles electronic structure calculations. Candidate defects are identified to explain recently observed differences in electrical and ...
Defect spectroscopy of single ZnO microwires
(Amer Inst PhysicsMelvilleEUA, 2014)
Photoluminescence from c-axis oriented ZnO films synthesized by sol-gel with diethanolamine as chelating agent
(Elsevier, 2016)
ZnO films were synthesized on SiO2/Si substrates through the sol-gel technique using diethanolamine as chelating agent and annealed in Ar + O-2 atmospheres with different O-2 flow-rates in the 10-100 sccm range. Samples ...
Conductivity fluctuations in proton-implanted ZnO microwires
(IOP Publishing, 2016-06)
Electric noise can be an important limitation for applications of conducting elements in the nanometer size range. The intrinsic electrical noise of prospective materials for opto-spintronics applications like ZnO has not ...
Estudo de vacâncias e falhas de empilhamento em ZnO Wurtzita
(Universidade Federal de UberlândiaBRPrograma de Pós-graduação em FísicaCiências Exatas e da TerraUFU, 2016)
Photoluminescence from c-axis oriented ZnO films synthesized by sol-gel with diethanolamine as chelating agent
(Elsevier, 2016-08)
ZnO films were synthesized on SiO2/Si substrates through the sol-gel technique using diethanolamine as chelating agent and annealed in ArþO2 atmospheres with different O2 flow-rates in the 10–100 sccm range. Samples were ...