A general lithography-free method of microscale/nanoscale fabrication and patterning on Si and Ge surfaces

作者：Wang Huatao; Wu Tom^*

来源：Nanoscale Research Letters, 2012, 7: 110.

DOI：10.1186/1556-276X-7-110

• lithography-free patterning
• nanostructures
• pits
• silicides
• germanides

Here, we introduce and give an overview of a general lithography-free method to fabricate silicide and germanide micro-/nanostructures on Si and Ge surfaces through metal-vapor-initiated endoepitaxial growth. Excellent controls on shape and orientation are achieved by adjusting the substrate orientation and growth parameters. Furthermore, micro-/nanoscale pits with controlled morphologies can also be successfully fabricated on Si and Ge surfaces by taking advantage of the sublimation of silicides/germanides. The aim of this brief report is to illustrate the concept of lithography-free synthesis and patterning on surfaces of elemental semiconductors, and the differences and the challenges associated with the Si and the Ge surfaces will be discussed. Our results suggest that this low-cost bottom-up approach is promising for applications in functional nanodevices.

• 出版日期2012-2-8
• 单位南阳理工学院; 哈尔滨工业大学