UNIDEF   23986
UNIDAD DE INVESTIGACION Y DESARROLLO ESTRATEGICO PARA LA DEFENSA
Unidad Ejecutora - UE
artículos
Título:
Optical and transport properties of LaTi1xMx(O,N)3+/-δ (x=0; 0.1, M=Nb5+, W6+) thin films prepared by plasma ammonolysis
Autor/es:
ALEXANDRA E. MAEGLI; LEYRE SAGARNA; SASCHA POPULOH; BARTOSZ PENKALA; EUGENIO H. OTAL; ANKE WEIDENKAFF
Revista:
JOURNAL OF SOLID STATE CHEMISTRY
Editorial:
ACADEMIC PRESS INC ELSEVIER SCIENCE
Referencias:
Lugar: Amsterdam; Año: 2014 vol. 211 p. 106 - 112
ISSN:
0022-4596
Resumen:
Oxynitride thin films of composition LaTi1−xMx(O,N)3±δ with x=0; 0.1 and M=Nb5+, W6+ were prepared by nitridation via microwave-induced plasma (MIP) ammonolysis, which allowed keeping the nitridation time short (16 min). The higher possible oxidation states of the B-site substituents (Nb5+, W6+) with respect to Ti4+ caused higher N content for LaTi0.9Nb0.1(O,N)3±δ and LaTi0.9W0.1(O,N)3±δ compared to LaTiO2N due to charge-compensation. XPS O 1s and N 1s core level and valence band spectra evidenced for increasing N content in the order LaTiO2N