Search Results - "Álvarez‐Alonso, D."

Assessing the operating temperature of multi-junction solar cells with novel rear side layer stack and local electrical contacts by Alonso-Álvarez, D., Weiss, C., Fernandez, J., Janz, S., Ekins-Daukes, N.

“…Sub-bandgap sunlight provides a source of heat generation in solar cells that is detrimental to performance, especially in space applications where heat…”
Get full text

Solcore: a multi-scale, Python-based library for modelling solar cells and semiconductor materials by Alonso-Álvarez, D., Wilson, T., Pearce, P., Führer, M., Farrell, D., Ekins-Daukes, N.

“…Computational models can provide significant insight into the operation mechanisms and deficiencies of photovoltaic solar cells. Solcore is a modular set of…”
Get full text

Thermal emissivity of silicon heterojunction solar cells by Alonso-Álvarez, D., Augusto, A., Pearce, P., Llin, L. Ferre, Mellor, A., Bowden, S., Paul, D.J., Ekins-Daukes, N.

“…The aim of this work is to evaluate whether silicon heterojunction solar cells, lacking highly emissive, heavily doped silicon layers, could be better…”
Get full text

Flint and Quartzite: Distinguishing Raw Material Through Bone Cut Marks by Maté‐González, M. Á., Yravedra, J., Martín‐Perea, D. M., Palomeque‐González, J., San‐Juan‐Blazquez, M., Estaca‐Gómez, V., Uribelarrea, D., Álvarez‐Alonso, D., Cuartero, F., González‐Aguilera, D., Domínguez‐Rodrigo, M.

“…Since the 1980s, several experimental analyses have been able to differentiate some lithic tool types and some of their raw materials according to the…”
Get full text

InGaAs/GaAsP strain balanced multi-quantum wires grown on misoriented GaAs substrates for high efficiency solar cells by Alonso-Álvarez, D., Thomas, T., Führer, M., Hylton, N. P., Ekins-Daukes, N. J., Lackner, D., Philipps, S. P., Bett, A. W., Sodabanlu, H., Fujii, H., Watanabe, K., Sugiyama, M., Nasi, L., Campanini, M.

“…Quantum wires (QWRs) form naturally when growing strain balanced InGaAs/GaAsP multi-quantum wells (MQW) on GaAs [100] 6° misoriented substrates under the usual…”
Get full text

Effect of Sb in thick InGaAsSbN layers grown by liquid phase epitaxy by Donchev, V., Milanova, M., Asenova, I., Shtinkov, N., Alonso-Álvarez, D., Mellor, A., Karmakov, Y., Georgiev, S., Ekins-Daukes, N.

“…•The effect of Sb in thick LPE grown InGaAsSbN layers is studied.•A reduction of the band gap energy of InGaAsSbN with respect to InGaAsN is found.•Good…”
Get full text

Carrier recombination effects in strain compensated quantum dot stacks embedded in solar cells by Alonso-Álvarez, D., Taboada, A. G., Ripalda, J. M., Alén, B., González, Y., González, L., García, J. M., Briones, F., Martí, A., Luque, A., Sánchez, A. M., Molina, S. I.

“…In this work we report the stacking of 50 InAs/GaAs quantum dot layers with a GaAs spacer thickness of 18 nm using GaP monolayers for strain compensation. We…”
Get full text

Enhancement of the room temperature luminescence of InAs quantum dots by GaSb capping by Ripalda, J. M., Alonso-Álvarez, D., Alén, B., Taboada, A. G., García, J. M., González, Y., González, L.

“…The authors have studied the use of antimony for the optimization of the In As ∕ Ga As ( 001 ) self-assembled quantum dot (QD) luminescence characteristics in…”
Get full text

Strain balanced quantum posts by Alonso-Álvarez, D., Alén, B., Ripalda, J. M., Llorens, J. M., Taboada, A. G., Briones, F., Roldán, M. A., Hernández-Saz, J., Hernández-Maldonado, D., Herrera, M., Molina, S. I.

“…Quantum posts are assembled by epitaxial growth of closely spaced quantum dot layers, modulating the composition of a semiconductor alloy, typically InGaAs. In…”
Get full text

Roadmap for the next-generation of hybrid photovoltaic-thermal solar energy collectors by Mellor, A., Alonso Alvarez, D., Guarracino, I., Ramos, A., Riverola Lacasta, A., Ferre Llin, L., Murrell, A.J., Paul, D.J., Chemisana, D., Markides, C.N., Ekins-Daukes, N.J.

“…•Roadmap presented for hybrid photovoltaic thermal (PVT) collectors.•A novel indium tin oxide (ITO)-based transparent low-emissivity coating applied directly…”
Get full text

Mid-infrared emissivity of crystalline silicon solar cells by Riverola, A., Mellor, A., Alonso Alvarez, D., Ferre Llin, L., Guarracino, I., Markides, C.N., Paul, D.J., Chemisana, D., Ekins-Daukes, N.

“…The thermal emissivity of crystalline silicon photovoltaic (PV) solar cells plays a role in determining the operating temperature of a solar cell. To elucidate…”
Get full text

Strain driven migration of In during the growth of InAs/GaAs quantum posts by Alonso-Álvarez, D., Alén, B., Ripalda, J. M., Rivera, A., Taboada, A. G., Llorens, J. M., González, Y., González, L., Briones, F.

“…Using the mechano-optical stress sensor technique, we observe a counter-intuitive reduction of the compressive stress when InAs is deposited on GaAs (001)…”
Get full text

Corrigendum to “Effect of Sb in thick InGaAsSbN layers grown by liquid phase epitaxy” [J. Cryst. Growth 483 (2018) 140–146] by Donchev, V., Milanova, M., Asenova, I., Shtinkov, N., Alonso-Álvarez, D., Mellor, A., Karmakov, Y., Georgiev, S., Ekins-Daukes, N.

Get full text

Effect of Sb incorporation on the electronic structure of InAs quantum dots by Taboada, A. G., Llorens, J. M., Alonso-Álvarez, D., Alén, B., Rivera, A., González, Y., Ripalda, J. M.

“…On the basis of optical characterization experiments and an eight band kp model, we have studied the effect of Sb incorporation on the electronic structure of…”
Get full text

Strain balanced quantum posts for intermediate band solar cells by Alonso-Alvarez, D, Alén, B, Ripalda, J M, Taboada, A G, Llorens, J M, González, Y, González, L, Briones, F, Antolín, E, Ramiro, I, Martí, A, Luque, A, Roldán, M A, Hernandez-Saz, J, Herrera, M, Molina, S I

“…In this work we present strain balanced InAs quantum post of exceptional length in the context of photovoltaics. We discuss the general properties of these…”
Get full text

Lagomorph exploitation during the Upper Palaeolithic in the Northern Iberian Peninsula. New evidence from Coímbre Cave (Asturias, Spain) by Yravedra, J., Herranz, D., Sesé, C., López-Cisneros, P., Linares-Matás, G.J., Pernas-Hernández, M., Arrizabalaga, A., Jordá Pardo, Jesús F., Álvarez-Alonso, D.

“…Traditionally, the Iberian Peninsula has been considered to be a “land of rabbits”, a notion reinforced through the frequent appearance of these animals…”
Get full text

Structural and optical changes induced by incorporation of antimony into InAs/GaAs(001) quantum dots by Taboada, A. G., Sánchez, A. M., Beltrán, A. M., Bozkurt, M., Alonso-Álvarez, D., Alén, B., Rivera, A., Ripalda, J. M., Llorens, J. M., Martín-Sánchez, J., González, Y., Ulloa, J. M., García, J. M., Molina, S. I., Koenraad, P. M.

“…We present experimental evidence of Sb incorporation inside InAs/GaAs(001) quantum dots exposed to an antimony flux immediately before capping with GaAs. The…”
Get full text

Publisher's Note: Structural and optical changes induced by incorporation of antimony into InAs/GaAs(001) quantum dots [Phys. Rev. B 82 , 235316 (2010)] by Taboada, A. G., Sánchez, A. M., Beltrán, A. M., Bozkurt, M., Alonso-Álvarez, D., Alén, B., Rivera, A., Ripalda, J. M., Llorens, J. M., Martín-Sánchez, J., González, Y., Ulloa, J. M., García, J. M., Molina, S. I., Koenraad, P. M.

Get full text

Reflexiones en torno a la caracterización tecnotipológica del yacimiento de Bañugues (Asturias, España) en el marco del Paleolítico medio del norte de la Península Ibérica by ÁLVAREZ-ALONSO, D., RODRÍGUEZ ASENSIO, J.A., JORDÁ PARDO, J.F.

“…El yacimiento de Bañugues es un referente en el estudio de las primeras ocupaciones humanas cantábricas. Descubierto en la década de los años 60, y excavado en…”
Get full text

Solcore: A multi-scale, python-based library for modelling solar cells and semiconductor materials by Alonso-Álvarez, D, Wilson, T, Pearce, P, Führer, M, Farrell, D, Ekins-Daukes, N

“…Computational models can provide significant insight into the operation mechanisms and deficiencies of photovoltaic solar cells. Solcore is a modular set of…”
Get full text