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Enhancement of Porous Silicon Formation by Using Ultrasonic Vibrations
تعزیز تكون السلیكون المسامي باستخدام الاھتزازات فوق الصوتیة

Author: Ali H. Al-Hamdani
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2012 Volume: 30 Issue: 5 Pages: 849-854
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

Anodic electrochemical etching enhanced by ultrasonically is developed to fabricate luminescent porous silicon (PS) material. The samples prepared by the new etching method exhibit superior characteristics to those prepared by conventional direct current etching. By applying ultrasonically enhanced etching, PS microcavities with much higher quality factors can be fabricated. The improved quality induced byultrasonic etching can be ascribed to increased rates of escape of hydrogen bubbles and other etched chemical species from the porous silicon pores surface.

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