El grup consta de 18 membres doctors. Es un grup de llarga trajectòria l’activitat del qual es centra en el desenvolupament i fabricació de dispositius semiconductors. Per això disposa d’un laboratori de fabricació “Sala Blanca” que constitueix un element vertebrador de l’activitat del grup. En particular la recerca es centra en les cèl•lules solars fotovoltaiques i en el desenvolupament de tecnologies de fabricació més econòmiques: tecnologia laser per cèl•lules solars de Silici, fabricació de cèl•lules HIT ( Heterojunction with thin Intrinsec layer ) , IBC (Intedigitated Back Contact), capes de passivació, cèl•lules orgàniques, termofotovoltaic. Un altre focus d’activitat son els cristalls fotònics 3D ja sia en Silici com col•loïdals i tecnologies de manipulació de líquids a escala micromètrica. Finalment també treballem en el control de càrrega en dielèctrics de dispositius MEMS i MOS, i en desenvolupament, caracterització i control de sensors, en particular anemomètrics i químics.

Research in micro and nanotechnology devices and their application in microelectronics, MEMSs, photonics and photovoltaic solar energy.

Research in micro and nanotechnology devices and their application in microelectronics, MEMSs, photonics and photovoltaic solar energy.

Recent Submissions

  • Laser fired contacts on amorphous silicon deposited by hot-wire cvd on crystalline silicon 

    Blanque, S; Voz Sánchez, Cristóbal; Muñoz Cervantes, Delfina; Martín García, Isidro; Orpella García, Alberto; Puigdollers i González, Joaquim; Alcubilla González, Ramón (WIP Wirtschaft und Infrastruktur GmbH & Co. Planungs-KG, 2008)
    Conference report
    Restricted access - publisher's policy
    In this work we study aluminium laser-fired contacts for intrinsic amorphous silicon layers deposited by Hot-Wire CVD. This structure could be used as an alternative low temperature back contact for rear passivated ...
  • The origin of emitter-like recombination for inverted c-Si surfaces 

    Martín García, Isidro; Hoex, B; Sanden, M C M van de; Alcubilla González, Ramón; Kessels, W M M (WIP Wirtschaft und Infrastruktur GmbH & Co. Planungs-KG, 2008)
    Conference report
    Restricted access - publisher's policy
    c-Si samples whose surface passivation is based on highly inverted surfaces experimentally show a decrease in effective lifetime at low illumination levels while a flat dependence is expected from the current theoretical ...
  • Improved design of all-optica half subtractor based 2 - dimensional photonic crystal 

    Yoosefi, Oraman; Rodríguez Martínez, Ángel; Azimi, Nemat (International Journal of Advance Engineering and Research Development (IJAERD), 2019-03-01)
    Article
    Open Access
    Abstract- Forthcoming Optical computers and Optical Signal Processors need all-optical devices in order to get rid of from Optical-Electrical-Optical conversions; Optical gates play a vital role in Optical networks. Photonic ...
  • Understanding noise-shaping in sigma-delta controls of surface potential for MOX gas sensors 

    Domínguez Pumar, Manuel; Kowalski, Lukasz; Monge Villora, Oscar; Olm Miras, Josep Maria; Navarrete Gatell, Eric; Llobet Valero, Eduard; Pons Nin, Joan (Institute of Electronics, Information and Communications Engineers (IEICE), 2018)
    Conference report
    Restricted access - publisher's policy
    The objective of this paper is to explain how quantization noise-shaping can be achieved for the output bitstream of sigma-delta controls of surface potential (SP) in MOX gas sensors. These controllers use temperature ...
  • Surface modification of polytetrafluoroethylene thin films by non-coherent UV light and water treatment for electrowetting applications 

    López, Cristian Daniel; Cedeño Mata, Kristel Michelle; Domínguez Pumar, Manuel; Bermejo Broto, Sandra (2020-12-01)
    Article
    Restricted access - publisher's policy
    The electrowetting on dielectric or EWOD phenomenon is used in a wide range of applications, such as Liquid Lenses, Lab-on-Chip devices, or EWOD displays, among others. Its chemical resistance, electrical stability, ease ...
  • Low-cost high-sensitive suns-Voc measurement instrument to characterize c-Si solar cells 

    Ortega Villasclaras, Pablo Rafael; Piñol, Juan M.; Martín García, Isidro; Orpella García, Alberto; Masmitjà Rusiñol, Gerard; López Rodríguez, Gema; Ros Costals, Eloi; Voz Sánchez, Cristóbal; Puigdollers i González, Joaquim; Alcubilla González, Ramón (2020-09-01)
    Article
    Open Access
    Measuring open-circuit voltage (Voc) vs. light intensity (Suns) in solar cells permits the access of cell performance without the series resistance effect. This work shows the implementation of a Suns-Voc measurement system ...
  • Analyzing the performance of a miniature 3D wind sensor for Mars 

    Domínguez Pumar, Manuel; Kowalski, Lukasz; Jiménez Serres, Vicente; Rodríguez Pérez, Ivette María; Soria Guerrero, Manel; Bermejo Broto, Sandra; Pons Nin, Joan (Multidisciplinary Digital Publishing Institute (MDPI), 2020-10-20)
    Article
    Open Access
    This paper analyzes the behavior of a miniature 3D wind sensor designed for Mars atmosphere. The sensor is a spherical structure of 10 mm diameter divided in four sectors. By setting all the sectors to constant temperature, ...
  • Mixed integration of CDIO skills into telecommunication engineering curricula 

    Sayrol Clols, Elisa; Bragós Bardia, Ramon; Alarcón Cot, Eduardo José; Cabrera-Bean, Margarita; Calveras Augé, Anna M.; Comellas Colomé, Jaume; O'Callaghan Castellà, Juan Manuel; Pegueroles Vallés, Josep R.; Pla, Enrique; Prat Viñas, Lluís; Sáez Moreno, Germán; Sardà Ferrer, Joan; Tallon Montoro, Carme (2010)
    Article
    Open Access
    Spain has been intensively involved in designing engineering curricula for the last two years and next academic year all engineering schools will be deploying all bachelor programs adapted to the EHEA and to the Spanish ...
  • Influence of co-sputtered Ag:Al ultra-thin layers in transparent V2O5/Ag:Al/AZO hole-selective electrodes for silicon solar cells 

    Tom, Thomas; Ros Costals, Eloi; Asensi López, José Miguel; Andreu Batallé, Jordi; Bertomeu Balagueró, Joan; Puigdollers i González, Joaquim; Voz Sánchez, Cristóbal; López-Pintó, Nicolau (Multidisciplinary Digital Publishing Institute (MDPI), 2020-10-31)
    Article
    Open Access
    As optoelectronic devices continue to improve, control over film thickness has become crucial, especially in applications that require ultra-thin films. A variety of undesired effects may arise depending on the specific ...
  • A miniaturized 3d heat flux sensor to characterize heat transfer in regolith of planets and small bodies 

    Domínguez Pumar, Manuel; Rodríguez Manfredi, José Antonio; Jiménez Serres, Vicente; Bermejo Broto, Sandra; Pons Nin, Joan (Multidisciplinary Digital Publishing Institute (MDPI), 2020-08-01)
    Article
    Open Access
    The objective of this work is to present the first analytical and experimental results obtained with a 3D heat flux sensor for planetary regolith. The proposed structure, a sphere divided in four sectors, is sensible to ...
  • 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. ...
  • Observation of photovoltaic effect within locally doped silicon nanojunctions using conductive probe AFM 

    Khoury, R.; Alvarez, José; Ohashi, T.; Martín García, Isidro; Ortega Villasclaras, Pablo Rafael; López Rodríguez, Gema; Jin, Chen; Li, J.; Rusli, E.; Bulkin, P.; Johnson, E. V. (2020-10-01)
    Article
    Restricted access - publisher's policy
    Localized p-doped nanojunctions (200–300 nm in diameter) were formed in n-type crystalline silicon substrates and were characterized using scanning electron microscopy (SEM) and conductive-probe atomic force microscopy ...

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