G
G. Niaura
Publications - 24
Citations - 387
G. Niaura is an academic researcher. The author has contributed to research in topics: Diamond-like carbon & Carbon film. The author has an hindex of 11, co-authored 24 publications receiving 350 citations.
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Proceedings ArticleDOI
Synthesis and characterization of silver nanoparticles
Igoris Prosyčevas,Algimantas Juraitis,Judita Puišo,G. Niaura,Asta Guobienė,Sigitas Tamulevičius,Ginutis Balčaitis,Asta Šileikaitė +7 more
TL;DR: In this article, the surface plasmon resonance peak in absorption spectra of silver particles showed an absorption maximum at 420-500 nm and polymer nanocomposites structures with selective light properties.
Journal ArticleDOI
Synthesis of the silicon and silicon oxide doped a-C:H films from hexamethyldisiloxane vapor by DC ion beam
V. Kopustinskas,Š. Meškinis,Sigitas Tamulevičius,Mindaugas Andrulevičius,B. Čižiūte.,G. Niaura +5 more
TL;DR: In this article, silicon and silicon oxide doped hydrogenated amorphous carbon films have been synthesized by direct ion beam deposition from hexamethyldisiloxane (HMDSO) vapor mixture with hydrogen (H 2 ) or acetylene (C 2 H 2 ) gas.
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XRD studies of an electrochemically co-deposited Cu–Zn–Sn precursor and formation of a Cu2ZnSnSe4 absorber for thin-film solar cells
Remigijus Juškėnas,G. Niaura,Zenius Mockus,Stasė Kanapeckaitė,Raimondas Giraitis,Rokas Kondrotas,Arnas Naujokaitis,G. Stalnionis,Vidas Pakštas,Violeta Karpavičienė +9 more
TL;DR: In this paper, the phase composition of pre-deposited CZT precursor films has been determined using modern x-ray diffraction and Raman spectroscopy methods, and it has been shown that up to four metallic phases are present: hexagonal η-Cu6.26Sn5, tetragonal Sn, cubic γ-Cu5Zn8, and cubic β′-CuZn phase.
Journal ArticleDOI
Characterization of Cu2ZnSnSe4 solar cells prepared from electrochemically co-deposited Cu–Zn–Sn alloy
Rokas Kondrotas,Remigijus Juškėnas,Arnas Naujokaitis,Algirdas Selskis,Raimondas Giraitis,Zenius Mockus,Stasė Kanapeckaitė,G. Niaura,Haibing Xie,Yudania Sánchez,Edgardo Saucedo +10 more
TL;DR: In this paper, the precursors for CZnSnSe4 (CZTSe) solar cell were prepared by electrochemical co-deposition method with different metals composition and preliminary annealed in three different atmospheres in order to obtain homogenous, without pores.
Journal ArticleDOI
Plasmonic properties of silver nanoparticles embedded in diamond like carbon films: Influence of structure and composition
Š. Meškinis,Arvydas Čiegis,Andrius Vasiliauskas,Asta Tamulevičienė,K. Šlapikas,R. Juškėnas,G. Niaura,Sigitas Tamulevičius +7 more
TL;DR: In this paper, the optical properties of hydrogenated diamond like carbon nanocomposite films containing silver nanoparticles (DLC:Ag) deposited by direct current (DC) unbalanced reactive magnetron sputtering were studied in 180-1100nm range.