Firstly, PSMs were prepared by the pulsed electrochemical etching method and the experimental conditions were optimized.

用电化学脉冲腐蚀法制备多孔硅微腔，优化了实验参数。

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In the third chapter Porous silicon was prepared by pulsed and dc electrochemical etching methods under the equivalent etching condition.

第三章研究了用脉冲电化学腐蚀制备均匀发光多孔硅。

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In the third chapter Porous silicon was prepared by pulsed and dc electrochemical etching methods under the equivalent etching condition.

第三章研究了用脉冲电化学腐蚀制备均匀发光多孔硅。

youdao