TY - JOUR
KW - Pulsed laser deposition
KW - Nanocrystalline
KW - Thin-film electrodes
AU - Seung-Wan Song
AU - Kathryn A Striebel
AU - Xiangyun Song
AU - Elton J Cairns
AB - <p>Mg<sub>2</sub>Si films, prepared by pulsed laser deposition (PLD), were amorphous, as prepared, and nanocrystalline following annealing. Their micro-structure and electrochemical characteristics were studied by high-resolution transmission electron microscopy (HRTEM) and electrochemical cycling against lithium. HRTEM analysis revealed that some excess Si was present in the films. The more amorphous thinner film exhibited excellent cyclability. However, when the film becomes crystalline, the irreversible capacity loss was more significant during the initial cycling and after ∼50 cycles. Interpretations of the superior stability of the amorphous films are examined.</p>
BT - Journal of Power Sources
DA - 06/2003
DO - 10.1016/S0378-7753(03)00135-6
N2 - <p>Mg<sub>2</sub>Si films, prepared by pulsed laser deposition (PLD), were amorphous, as prepared, and nanocrystalline following annealing. Their micro-structure and electrochemical characteristics were studied by high-resolution transmission electron microscopy (HRTEM) and electrochemical cycling against lithium. HRTEM analysis revealed that some excess Si was present in the films. The more amorphous thinner film exhibited excellent cyclability. However, when the film becomes crystalline, the irreversible capacity loss was more significant during the initial cycling and after ∼50 cycles. Interpretations of the superior stability of the amorphous films are examined.</p>
PY - 2003
SP - 110
EP - 112
ST - Journal of Power Sources
T2 - Journal of Power Sources
TI - Amorphous and nanocrystalline Mg<sub>2</sub>Si thin-film electrodes
VL - 119-121
SN - 03787753
ER -