CARRILLO SOLANO, Mercedes Alicia; DUSSAUZE, Marc; VINATIER, Philippe; CROGUENNEC, Laurence; KAMITSOS, Efstratios I.; HAUSBRAND, R.; JAEGERMANN, Wolfram

doi:10.1007/s11581-015-1573-1

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CARRILLO SOLANO, Mercedes Alicia
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Institut für Materialwissenschaft

DUSSAUZE, Marc
Institut des Sciences Moléculaires [ISM]

VINATIER, Philippe
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

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Ionics. 2016, vol. 22, n° 4, p. 471-481

Springer Verlag

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Lithium ion-conducting glasses attract wide interest for electrochemical applications like efficient energy storage devices. This work presents a structural study on involved bonding units, based on X-ray photoelectron spectroscopy and infrared spectroscopy, of lithium phosphorus oxide and oxynitride amorphous thin films prepared by RF magnetron sputtering. A thorough consideration of the mid- and far-infrared spectral regions demonstrated structural changes at the phosphate units and the lithium ion environments triggered by nitrogen incorporation and post-deposition thermal treatment. It was found that films prepared by sputtering in pure nitrogen atmosphere have about 75 % of their nitrogen atoms in sites doubly coordinated with phosphorus (P–N=P), and the rest in triply coordinated sites. It was shown also that nitrogen incorporation favors the stability of lithium ions, while annealing enhances ionic conductivity of the oxynitride films.< Leer menos

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LiPON

IR spectroscopy

Thin film

Lithium phosphorus oxynitride

Glasses

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Phosphate structure and lithium environments in lithium phosphorus oxynitride amorphous thin films

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