Abstract
Piezoelectric thin films of Li2B4O7 are fabricated by two methods, RF sputter deposition and vapor deposition under a low gas pressure. RF sputter deposition is found unsuitable because the sputtered Li2B4O7 tends to decompose during the process, c-axis oriented Li2B4O7 films with good piezoelectric characteristics, on the other hand, are prepared by vapor deposition under a low gas pressure.

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