کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5368121 1388385 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Laser-produced plasma ion characteristics in laser ablation of lithium manganate
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Laser-produced plasma ion characteristics in laser ablation of lithium manganate
چکیده انگلیسی

Laser ablation is widely used to assist in the fabrication of prototype lithium manganate (LiMn2O4) thin film structures for Li-ion battery electrodes via the pulsed laser deposition technique. However, films can be considerably Li and/or O deficient, depending the deposition conditions used. Here we present data on the ionic component of laser-produced plasma in laser ablation of lithium manganate with ns excimer laser. Plasma was monitored using an electrical Langmuir ion probe, in time-of-flight mode in conjunction with mass spectrometry to identify the dominant ionic species. Ablation in vacuum at ∼2.5 J cm−2 revealed the plasma's ionic component was composed primarily of singly charged Li and Mn ions. The time-of-flight data indicates significant deceleration of the plasma when ablation is carried out in an oxygen background gas pressure of the order of 10 Pa. The implications for thin film growth are considered in terms of the possible gas phase interactions and/or thin film re-sputtering yield.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 254, Issue 4, 15 December 2007, Pages 811-815
نویسندگان
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