Synthesis and Photoluminescence of Si-Related Nanowires Using Porous Silicon as Si Element Source

详细信息    查看全文

• 作者：Yajun Yang ; Guowen Meng ; Xianyun Liu ; Xiaoguang Zhu ; Mingguang Kong ; Fangming Han ; Xianglong Zhao ; Qiaoling Xu ; Lide Zhang
• 刊名：Crystal Growth & Design
• 出版年：2008
• 出版时间：June 2008
• 年：2008
• 卷：8
• 期：6
• 页码：1818 - 1822
• 全文大小：1124K
• 年卷期：v.8,no.6(June 2008)
• ISSN：1528-7505

文摘

Compound nanowires (NWs) of Si-related materials, such as SiC, Si₃N₄, and Zn₂SiO₄ have been synthesized in high yield via a simple thermal evaporation, chemical reaction, and deposition process using porous silicon as the Si element source. The vapor-solid growth mechanism of NWs plays a main role in the formation of the as-prepared Si-related NWs. Photoluminescence (PL) measurements reveal that SiC NWs emit an ultraviolet light at 364 nm, Si₃N₄ NWs shows a broad PL spectrum with a maximum at 495 nm, and Zn₂SiO₄ NWs reveals a green emission at about 510 nm. These Si-related NWs have potential in both composites and optoelectronic nanodevices.