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Laser-assisted low temperature processing ofPb(Zr, Ti)O3thin film

 

作者: Yongfei Zhu,   Jinsong Zhu,   Yoon J. Song,   S. B. Desu,  

 

期刊: Applied Physics Letters  (AIP Available online 1998)
卷期: Volume 73, issue 14  

页码: 1958-1960

 

ISSN:0003-6951

 

年代: 1998

 

DOI:10.1063/1.122334

 

出版商: AIP

 

数据来源: AIP

 

摘要:

A method for lowering the processing temperature ofPbZr1−xTixO3(PZT) films was developed utilizing a laser-assisted two-step process. In the first step, perovskite phase was initiated in the PZT films to a furnace anneal at low temperatures in the range of 470–550 °C, depending on the Zr/Ti ratio. Later, the films were laser annealed (using KrF excimer laser) at room temperature to grow the perovskite phase, and to improve microstructure and ferroelectric properties. It was found that this two-step process was very effective in producing excellent quality ferroelectric PZT films at low temperatures. It should be noted that although laser annealing of amorphous and/or pyrochlore films directly (one-step process) produced perovskite phase, the ferroelectric properties of these films, irrespective of the composition, were rather unattractive. Some possible reasons for the ineffectiveness of the one-step process were discussed. ©1998 American Institute of Physics.

 

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