Browsing by Author "Datas Medina, Alejandro"

Now showing items 1-10 of 10

    • Application of quasi-steady-state photoconductance technique to lifetime measurements on crystalline germanium substrates 

      Martín García, Isidro; Alcañiz, A.; Jiménez Pagán, Alba; López Rodríguez, Gema; del Cañizo Nadal, Carlos; Datas Medina, Alejandro (2020-07-01)
      Article
      Open Access
      Similar to other high quality crystalline absorbers, an accurate knowledge of surface passivation of crystalline germanium (c-Ge) substrates is crucial for a straightforward improvement of photovoltaic device performance. ...

    • Cost-effective ultra-high temperature latent heat thermal energy storage systems 

      Ramos Cabal, Alba; López, Esther; del Cañizo, Carlos; Datas Medina, Alejandro (Elsevier, 2022-02-10)
      Article
      Open Access
      The availability of cost-effective energy storage technologies with durations from 10 to 100 h is key for intermittent renewable energies, like wind or solar, to become a large share of the electrical grid power. Battery ...

    • Germanium photovoltaic cells with MoO x hole-selective contacts 

      Alcañiz, A.; López Rodríguez, Gema; Martín García, Isidro; Jiménez Pagán, Alba; Datas Medina, Alejandro; Calle, Eric; Ros Costals, Eloi; Gerling Sarabia, Luis Guillermo; Voz Sánchez, Cristóbal; del Cañizo Nadal, Carlos; Alcubilla González, Ramón (2019-03-15)
      Article
      Open Access
      Very thin, thermally evaporated MoOx (x¿<¿3) layer has been used as transparent hole-selective contact on an n-type Germanium substrate to effectively demonstrate PV conversion capability. The fabricated MoOx/Ge heterojunction ...

    • Highly reflective and passivated ohmic contacts in p-Ge by laser processing of aSiCx:H(i)/Al2O3/aSiC films for thermophotovoltaic applications 

      Gamel, Mansur Mohammed Ali; López Rodríguez, Gema; Medrano Gómez, Álvaro Manuel; Jiménez Rodríguez, Alba María; Datas Medina, Alejandro; Garin Escriva, Moises; Martín García, Isidro (2024-01-15)
      Article
      Open Access
      Crystalline germanium (c-Ge) has historically been regarded as a cost-effective alternative to III-V semiconductors for thermophotovoltaic (TPV) device fabrication. However, Ge-based devices have not yet reported high ...

    • Latent heat thermophotovoltaic batteries 

      Datas Medina, Alejandro; López-Ceballos, Alicia; López, Esther; Ramos Cabal, Alba; del Cañizo, Carlos (2022-02)
      Article
      Open Access
      Latent heat thermophotovoltaic (LHTPV) batteries store electricity as latent heat at very high temperatures (>1,000°C) and convert this heat back to electricity on demand using thermophotovoltaics (TPVs). In this study, ...

    • N-type doping of SiC-passivated Ge by pulsed laser melting towards the development of interdigitated back contact thermophotovoltaic devices 

      Jiménez Pagán, Alba; Napolitani, Enrico; Datas Medina, Alejandro; Martín García, Isidro; López Rodríguez, Gema; Cabrero Piris, Mariona; Sgarbossa, Francesco; Milazzo, Ruggero; Carturan, Sara Maria; De Salvador, Davide; López García, Iñaki; Ryu, Yu Kyoung; Martinez Rodrigo, Javier; del Cañizo Nadal, Carlos (2022-01-01)
      Article
      Open Access
      In this article, a method for phosphorous (n-type) doping of germanium based on spin-on dopant sources and Pulsed Laser Melting (PLM) throughout an amorphous silicon carbide (a-SixC1-x:H) layer, which provides both surface ...

    • Recerca i tecnologia en enginyeria gràfica i disseny a la Universitat Politècnica de Catalunya 

      García Carrillo, Àgueda; Ramos Cabal, Alba; Datas Medina, Alejandro; Sureda Carbonell, Bàrbara; Faura López de Haro, Bernat; del Cañizo Nadal, Carlos; Valls Vidal, Cristina; Hernández Díaz, David; Mestres Domenech, Francesc; Bermúdez Rodríguez, Francisco; Hernández Abad, Francisco; Peña Andrés, Javier; Ivern Cacho, Jordi; Lapaz Castillo, José Luís; Ibáñez García, José María; Roncero Vivero, María Blanca; López Membrilla, Manuel; Alcaraz Sendra, Olga; Cusola Aumedes, Oriol; Rojas, Orlando J.; Farrerons Vidal, Óscar; Villar Ribera, Ricardo Alberto; Baltà Salvador, Rosó; Castro de Losada, Rubén de; Hernández Abad, Vicente (OmniaScience, 2020-03-02)
      Book
      Open Access
      Els temps canvien cada vegada més ràpidament, i a la universitat això encara es nota més. L’històric departament d‘Expressió Gràfica a l’Enginyeria (EGE) de la Universitat Politècnica de Catalunya, garant d’una docència ...

    • Solar photovoltaic power-to-heat-to-power energy storage 

      Ramos Cabal, Alba; Datas Medina, Alejandro; Cañizo, Carlos del (OmniaScience, 2020-01-31)
      Conference report
      Open Access
      This article summarizes part of the work developed, and already published, in the context of the AMADEUS project (www.amadeusproject. eu), a FET-OPEN project funded by the European Commission to research a new generation ...

    • Techno-economic analysis of solar PV power-to-heat-to-power storage and trigeneration in the residential sector 

      Datas Medina, Alejandro; Ramos Cabal, Alba; del Cañizo Nadal, Carlos (2019-12-15)
      Article
      Open Access
      This article assesses whether it is profitable to store solar PV electricity in the form of heat and convert it back to electricity on demand. The impact of a number of technical and economic parameters on the profitability ...

    • Ultra high temperature latent heat energy storage and thermophotovoltaic energy conversion 

      Datas Medina, Alejandro; Ramos Cabal, Alba; Martí, Antonio; del Cañizo Nadal, Carlos (2016)
      Article
      Open Access
      A conceptual energy storage system design that utilizes ultra high temperature phase change materials is presented. In this system, the energy is stored in the form of latent heat and converted to electricity upon demand ...