Zobrazeno 1 - 10
of 24
pro vyhledávání: '"J. M. Ferreyra"'
Publikováno v:
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
A simple thermal annealing at 150 C followed by exposure to air ambient conditions in epitaxial ZnO thin films produces a photoconductivity enhancement and a reduction of the energy gap. The first effect is related to a release of carriers from bulk
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b39c0de3f12a6a4f7ec1bc783fbd02d
https://pubmed.ncbi.nlm.nih.gov/33086192
https://pubmed.ncbi.nlm.nih.gov/33086192
Publikováno v:
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Using photoconductance spectroscopy, we have studied the influence of different types of thermal annealing on epitaxial ZnO thin films where band bending effects play a major role. Once the film is exposed to ambient air conditions after a simple the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60dc6ee3f2128886b59cef21036ab3be
http://aip.scitation.org/doi/10.1063/5.0010329
http://aip.scitation.org/doi/10.1063/5.0010329
Publikováno v:
Semiconductor Science and Technology. 37:035012
We propose a simple but unexplored model for the semiconductor band bending with the aim to obtain a relatively simple expression to calculate the energy spectrum for the confined levels and the analytical expressions for wave-functions. This model c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ec19ed9823d4c93ddbc84fc6701fb2b
https://doi.org/10.1088/1361-6641/ac4a20
https://doi.org/10.1088/1361-6641/ac4a20
Autor:
M. Villafuerte, Carlos A. Figueroa, L. Patrone, Gladys Nieva, C. Navarro, M. C. Zapata, J. M. Ferreyra, V. Runco Leal, L. Malatto, G. Bridoux, J. Guimpel
Publikováno v:
Applied Physics Letters. 119:163502
In this work, we report on fabrication and characterization of a field effect transistor (FET) based on a ZnO/MgO bilayer employing a top-gate configuration. X-ray diffraction patterns show that the resulting ZnO and MgO films grow epitaxially with p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8d8a668a6b5dbf30a56127e015669ac
https://doi.org/10.1063/5.0065968
https://doi.org/10.1063/5.0065968
Autor:
B. Straube, J. Zamora, M. Villafuerte, J. M. Ferreyra, Carlos A. Figueroa, G. Bridoux, Silvia P. Heluani
Publikováno v:
Solid State Communications. 257:42-46
Combining photoconductivity and photoluminescence measurements we have studied the band bending behavior with the Li-doping content in ZnO microwires. Our results reveal the presence of in-gap acceptor levels with energies ranging from 100 meV to 600
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1dd8a9a1a0195153bf6eca62224cde97
https://doi.org/10.1016/j.ssc.2017.04.002
https://doi.org/10.1016/j.ssc.2017.04.002
Publikováno v:
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
High field magnetoresistance has been studied in epitaxial n-type ZnO:Na and ZnO:Li thin films in a temperature range between 4 K and 150 K. The resulting negative magnetoresistance can be well fitted using a semiempirical model of Khosla and Fischer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3237d94726c1525936500e8b8347c8c5
https://iopscience.iop.org/article/10.1088/1361-648X/ab2314
https://iopscience.iop.org/article/10.1088/1361-648X/ab2314
Autor:
R.J.M. Melchiori, Nicolás Maltese, Gustavo Angel Maddonni, Octavio Pedro Caviglia, J. M. Ferreyra
Late sowing dates of maize are widely adopted in the Pampas region of Argentina, stabilising grain yields due to a more favourable water balance around flowering. However, late-sown crops are exposed to high soil N availabilities (Nav), high temperat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f8b9e2f736399b9f1e76ce2835751bd
https://linkinghub.elsevier.com/retrieve/pii/S0378429018309560
https://linkinghub.elsevier.com/retrieve/pii/S0378429018309560
Publikováno v:
Applied Physics Letters. 118:132101
Starting from high-quality oxygen-deficient BaSnO3 films, we have monitored the evolution of their electrical conducting and photoconducting properties after subsequent post-thermal annealing in oxygen. In this way, we have been able to modify the el
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5fbd288eed902dd759987692e1d5b7db
https://doi.org/10.1063/5.0046535
https://doi.org/10.1063/5.0046535
Autor:
Laura Echarte, Fernando H. Andrade, J. A. Di Matteo, Anibal Alejandro Cerrudo, J. M. Ferreyra
Publikováno v:
Field Crops Research. 197:107-116
Maize (Zea Mays L.) grain yield have increased during the last decades and there is an ample range of rates of grain yield increments reported in the literature. Maize hybrids comparison at their optimum plant density might contribute to elucidate th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::439685cff3bc05dece3d7bc63beba14f
https://doi.org/10.1016/j.fcr.2016.07.023
https://doi.org/10.1016/j.fcr.2016.07.023
Autor:
Silvia P. Heluani, J. M. Ferreyra, M. Villafuerte, Nadia Celeste Vega, Carlos Miguel Figueroa, G. Bridoux, B. Straube
Publikováno v:
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
In this work, we report on a model that describes the microscopic electrical transport as a transmission problem using the invariant embedding technique. Analytical expressions for the transport coefficients under non-steady-state conditions are deri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6286fdeb42123deffff33737cdc0064d
https://doi.org/10.1063/1.5136090
https://doi.org/10.1063/1.5136090