Browsing Zinātniskie raksti (CFI) / Scientific articles by Subject "Thin films"

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    • Changes in structure and conduction type upon addition of Ir to ZnO thin films 

      Zubkins, Martins; Kalendarev, Robert; Gabrusenoks, Jevgenijs; Plaude, A. V.; Zitolo, Andrea; Anspoks, Andris; Pudzs, Kaspars; Vilnis, Kaspars; Azens, Andris; Purans, Juris (Elsevier B.V., 2017)
      Zn-Ir-O (Zn/Ir ≈ 1/1) thin films have been reported to be a potential p-type TCO material. It is, however, unknown whether it is possible to achieve p-type conductivity at low Ir content, and how the type and the magnitude ...

    • Influence of Nb-doping on the local structure and thermoelectric properties of transparent TiO2:Nb thin films 

      Ribeiro, , J. M.; Correia, Filipe C.; Kuzmin, Alexei; Jonane, Inga; Kong, M.; Goñi, Alejandro R.; Reparaz, Sebastian; Kalinko, Aleksandr; Welter, Edmund; Tavares, C. J.M. (Elsevier Ltd, 2020)
      Transparent n-type niobium-doped titanium dioxide thin films (TiO2:1.5 at.%Nb) with pronounced thermoelectric properties were produced from a composite Ti:Nb target by reactive magnetron sputtering. The thin films were ...

    • The influence of Sb doping on the local structure and disorder in thermoelectric ZnO:Sb thin films 

      Ribeiro, Joana M.; Rodrigues, Frederico J.; Correia, Filipe C.; Pudza, Inga; Kuzmin, Alexei; Kalinko, Aleksandr; Welter, Edmund; Barradas, Nuno P.; Alves, Eduardo; LaGrow, Alec P.; Bondarchuk, Oleksandr; Welle, Alexander; Telfah, Ahmad; Tavares, Carlos J. (Elsevier, 2023)
      Thermoelectric transparent ZnO:Sb thin films were deposited by magnetron sputtering, with Sb content varying between 2 and 14 at%. As evidenced by X-ray diffraction analysis, the films crystallize in the ZnO wurtzite ...

    • Nonlinear absorption and refraction of picosecond and femtosecond pulses in HgTe quantum dot films 

      Bindulis, Arturs; Shuklov, Ivan A.; Kim, Vyacheslav V.; Mardini, Alaa A.; Grube, Jurgis; Alnis, Janis; Lizunova, Anna; Razumov, Vladimir F.; Ganeev, Rashid A. (Multidisciplinary Digital Publishing Institute (MDPI), 2021)
      We report measurements of the saturated intensities, saturable absorption, and nonlinear refraction in 70-nm thick films containing 4 nm HgTe quantum dots. We demonstrate strong nonlinear refraction and saturable absorption ...

    • The role of Ga and Bi doping on the local structure of transparent zinc oxide thin films 

      Correia, Filipe C.; Ribeiro, Joana M.; Kuzmin, Alexei; Pudza, Inga; Kalinko, Aleksandr; Welter, Edmund; Mendes, Adelio; Rodrigues, Joana; Ben Sedrine, Nabiha; Monteiro, Teresa; Correia, Maria Rosário; Tavares, Carlos J. (Elsevier, 2021-07-25)
      Transparent undoped ZnO and additionally doped with Ga and Bi thin films were produced by magnetron sputtering. The thin films were comprehensively characterized by X-ray absorption, X-ray diffraction (XRD), X-ray photoelectron ...