Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Manuel Lopez-Ponce"'
Autor:
Sreekumar Rajappan Achary, Manuel Lopez-Ponce, Juan F. Sánchez-Royo, Said Agouram, Vicente Muñoz-Sanjosé, Adrian Hierro, JM José Maria Ulloa, E. Muñoz
Publikováno v:
CrystEngComm, ISSN 1466-8033, 2013, No. 15
Archivo Digital UPM
Universidad Politécnica de Madrid
Archivo Digital UPM
Universidad Politécnica de Madrid
By using the spray pyrolysis methodology in its classical configuration we have grown self-assembled MgxZn1−xO quantum dots (size [similar]4–6 nm) in the overall range of compositions 0 ≤ x ≤ 1 on c-sapphire, Si (100) and quartz substrates. C
Autor:
Adrian Hierro, E. Muñoz, Borge Vinter, A. Kurtz, G. Tabares, Jean-Michel Chauveau, Manuel Lopez-Ponce
Publikováno v:
Oxide-based Materials and Devices VI.
We review in this paper the application of ZnO/(Zn,Mg)O quantum wells to the photodetection of the polarization state of UV light. This photodetection is achieved by using the natural anisotropy that exists in non-polar ZnO/(Zn,Mg)O quantum wells, wh
Autor:
Vicente Muñoz-Sanjosé, S Albert, Said Agouram, A. Kurtz, V. Marín-Borrás, Manuel Lopez-Ponce, JM José Maria Ulloa, Adrian Hierro, E. Muñoz, G. Tabares
Publikováno v:
Semiconductor Science and Technology, ISSN 0268-1242, 2015-09, Vol. 30, No. 10
Archivo Digital UPM
Universidad Politécnica de Madrid
Archivo Digital UPM
Universidad Politécnica de Madrid
This work presents a comprehensive optical characterization of Zn1−xMgxO thin films grown by spray pyrolysis (SP). Absorption measurements show the high potential of this technique to tune the bandgap from 3.30 to 4.11 eV by changing the Mg acetate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86382c9f7a2a7200eebebeaa964a5fd3
https://oa.upm.es/40784/
https://oa.upm.es/40784/
Autor:
E. Muñoz, JM José Maria Ulloa, Atsushi Nakamura, Adrian Hierro, Vicente Muñoz-Sanjosé, Pierre Lefebvre, M. Suzuki, Manuel Lopez-Ponce, M.C. Martínez-Tomás, Jiro Temmyo, Said Agouram
Publikováno v:
Nanotechnology
Nanotechnology, Institute of Physics, 2014, 25, pp.255202. ⟨10.1088/0957-4484/25/25/255202⟩
Nanotechnology, Institute of Physics, 2014, 25, pp.255202. ⟨10.1088/0957-4484/25/25/255202⟩
International audience; We report on the growth and microstructure analysis of high Cd content ZnCdO/ZnO multiple quantum wells (MQW) within a nanowire. Heterostructures consisting of ten wells with widths from 0.7 to 10nm are demonstrated, and show
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d84bdcd326858afaf4b4da8ed17c32c
https://hal.archives-ouvertes.fr/hal-01009919
https://hal.archives-ouvertes.fr/hal-01009919
Autor:
JM José Maria Ulloa, Said Agouram, Adrian Hierro, Pierre Lefebvre, Jiro Temmyo, E. Muñoz, Kenji Yamamoto, Vicente Muñoz-Sanjosé, Atsushi Nakamura, Manuel Lopez-Ponce
Publikováno v:
Applied Physics Letters, ISSN 0003-6951, 2013-04, Vol. 102, No. 14
Archivo Digital UPM
Universidad Politécnica de Madrid
Applied Physics Letters
Applied Physics Letters, American Institute of Physics, 2013, 102, pp.143103. ⟨10.1063/1.4799491⟩
Archivo Digital UPM
Universidad Politécnica de Madrid
Applied Physics Letters
Applied Physics Letters, American Institute of Physics, 2013, 102, pp.143103. ⟨10.1063/1.4799491⟩
International audience; ZnCdO nanowires with up to 45% Cd are demonstrated showing room temperature photoluminescence (PL) down to 2.02 eV and a radiative efficiency similar to that of ZnO nanowires. Analysis of the microstructure in individual nanow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a1bc9478f06cab4bbd08d29f106a557
https://oa.upm.es/26722/
https://oa.upm.es/26722/
Publikováno v:
Semiconductor Science and Technology. 31:035010
By combining photoluminescence, capacitance-voltage profiling and deep level optical spectroscopy, the optical and electrical signatures of the deep levels induced by N in MBE-grown homoepitaxial m-ZnO layers are identified and correlated to differen
Autor:
Manuel Lopez-Ponce, E. Muñoz, J.M. Ulloa, Atsushi Nakamura, A. Hierro, Jiro Temmyo, K. Yamamoto
Publikováno v:
Proceedings of the 8th Spanish Conference on Electron Devices, CDE'2011 | 8th Spanish Conference on Electron Devices, CDE'2011 | 08/02/2011-11/02/2011 | Palma de Mallorca, España
Archivo Digital UPM
instname
Archivo Digital UPM
instname
ZnO single nanowire photodetectors have been measured in different ambient conditions in order to understand and control adsorption processes on the surface. A decrease in the conductivity has been observed as a function of time when the nanowires ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba3d02a19a0dc4a6d6043656aa89f1d2
https://oa.upm.es/12955/
https://oa.upm.es/12955/