Patents Assigned to Jozef Stefan Institute
  • Patent number: 8535434
    Abstract: It is describes a material in the form of lithium fluoride powder containing color centers and the method for its preparation, by the formation of color centers based on irradiating the powder with synchrotron radiation (light). The method involves mechanically reducing the size of the particles that form the LiF powder and the formation of color centers therein by its exposure to synchrotron radiation. The so activated powder, which maintains the transparency characteristics of the original material if exposed to sunlight, can find wide use as an additive both in common printing inks and in pigments used in the artistic field to be used for the formation of marks on artifacts for anti-counterfeiting/identification purposes.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: September 17, 2013
    Assignees: Ellettra-Sincrotrone Trieste Societa' Consortile per Azioni, Jozef Stefan Institute
    Inventors: Luca Gregoratti, Marco Peloi, Marija Kosec, Danjela Kuscer Hrovatin, Giuseppina Palma
  • Publication number: 20120248445
    Abstract: High performance thin-film, transistors are entirely processed at temperatures not exceeding 150° C., using amorphous multi component dielectrics based on the mixture of high band gap and high dielectric constant (K) materials. The sputtered or ink jet printed mixed dielectric materials such as Ta2O5 with SiO2 or Al2O3 or HfO2 with SiO2 or Al2O3 are used. These multicomponent dielectrics allow producing amorphous dielectrics to be introduced in high stable electronic devices with low leakage currents, while preserving a high dielectric constant. This results in producing thin film transistors with remarkable electrical properties, such as the ones produced based on Ga—In—Zn oxide as channel layers and where the dielectric was the combination of the mixture Ta2O5:SiO2, exhibiting field-effect mobility exceeding 35 cm2 V?1 s?1, close to 0 V turn-on voltage, on/off ratio higher than 106 and subthreshold slope below 0.24 V dec?1.
    Type: Application
    Filed: August 5, 2010
    Publication date: October 4, 2012
    Applicants: Faculdad de Ciencias e Technologia da Universidade Nova de Lisboa, Universidad de Barcelona, Jozef Stefan Institute
    Inventors: Rodrigo Ferrão De Paiva Martins, Elvira Maria Correia fortunato, Pedro Miguel Cândido Barquinha, Luís Miguel Nunes Pereira, Gonçalo Pedro Gonçalves, Danjela Kuscer Hrovatin, Marija Kosec
  • Publication number: 20070274895
    Abstract: The present Invention relates a quasi-one-dimensional material with sub-micron cross-section described by the formula M6CyHz, where the M=transition metal, C=chalcogen, H=halogen, and where y and z are integers such that 8.2<y+z<10, which materials are synthesized in a Single-step procedure at temperatures above 1000° C. The present invention also concerns the use of these materials in electronic, chemical, optical or mechanical applications.
    Type: Application
    Filed: February 25, 2004
    Publication date: November 29, 2007
    Applicant: Jozef Stefan Institute
    Inventors: Adolf Jesih, Dragan Mihailovic, Maja Remskar, Ales Mrzel, Daniel Vrbanic