Patents Assigned to Ecole Polytechnique Federate de Lausanne EPFL
  • Patent number: 10665800
    Abstract: The present invention relates to a method for producing a solid solar cells, including the steps of providing a hole collector layer, applying a conductive layer onto the hole collector layer, applying an electron blocking layer onto the conductive layer, applying a sensitizer layer onto the electron blocking layer, applying a hole blocking layer onto the sensitizer layer, and providing a current collector and/or a metal layer or a conductor. The sensitizer layer including an organic-inorganic perovskite is applied by co-deposition of one or more sublimated divalent or trivalent salts and of one or more sublimated organic ammonium salts to obtain the organic-inorganic perovskite. The invention also relates to solid state solar cells, wherein the charge flow is inverted compared to the charge flow in a solar cell of conventional architecture and/or obtained by the above method.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: May 26, 2020
    Assignees: Ecole Polytechnique Federate de Lausanne (EPFL), Universitat de Valencia
    Inventors: Mohammad Khaja Nazeeruddin, Michael Graetzel, Hendrik Jan Bolink, Olga Malinkiewicz, Alejandra Soriano Portillo
  • Patent number: 9821163
    Abstract: Systems and methods are provided for treating a sexual disorder such as erectile dysfunction (ED) or female sexual arousal disorder (FSAD). An electrical stimulation system may include an implantable stimulation unit, an external patient controller, and an external physician controller. The implantable stimulation unit has an array of electrodes disposed on one or more flexible substrates configured to conform to a patient's anatomy at the pelvic plexus. Post-implantation, the physician controller may direct the stimulation unit to stimulate with select electrode(s) of the array to determine which electrode configuration provides optimal sexual arousal. The patient controller may be used to cause the stimulation unit to stimulate using the optimal electrode configuration at desired times.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: November 21, 2017
    Assignee: Ecole Polytechnique Federal De Lausanne (EPFL)
    Inventors: Rodrigo Araujo Fraga Da Silva, Nikolaos Stergiopulos
  • Patent number: 9337435
    Abstract: A dye sensitized solar cell, wherein a compacting compound whose molecular structure comprises a terminal group, a hydrophobic part and an anchoring group is co-adsorbed together with the dye on the semi-conductive metal oxide layer of the photoanode, forming a dense mixed self-assembled monolayer.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: May 10, 2016
    Assignee: Ecole Polytechnique Federal de Lausanne (EPFL)
    Inventors: Peng Wang, Shaik Mohammad Zakeeruddin, Michael Graetzel
  • Publication number: 20110121421
    Abstract: In previously known imaging devices as in still and motion cameras, for example, image sensor signal response typically is linear as a function of intensity of incident light. Desirably, however, akin to the response of the human eye, response is sought to be nonlinear and, more particularly, essentially logarithmic. Preferred nonlinearity is realized in image sensor devices of the invention upon severely limiting the number of pixel states, combined with clustering of pixels into what may be termed as super-pixels.
    Type: Application
    Filed: April 9, 2009
    Publication date: May 26, 2011
    Applicant: Ecole Polytechnique Federate de Lausanne EPFL
    Inventors: Edoardo Charbon, Luciano Sbaiz, Martin Vetterli, Sabine Susstrunk
  • Patent number: 6509174
    Abstract: Fluorescent protein expressing cells with very high fluorescence are described as well as a method to obtain such cells. The fluorescence of such cells can be as high as about 1000 times the auto-fluorescence of the respective host cell. Due to the high fluorescence, said cells are very suitable tools in the development, surveillance and/or optimization of production processes, for selection of culture media and process parameters and for the determination of cell growth and the detection, quantification and monitoring of biomass.
    Type: Grant
    Filed: June 16, 1998
    Date of Patent: January 21, 2003
    Assignee: Ecole Polytechnique Federal de Lausanne (EPFL)
    Inventors: Martin Jordan, Florian Maria Wurm