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Structural and photoluminescence investigation on the hot-wire assisted plasma enhanced chemical vapor deposition growth silicon nanowires
Chong, SK; Goh, BT; Wong, YY; Nguyen, HQ; Do, H; Ahmad, I; Aspanut, Z; Muhamad, MR; Dee, CF; Rahman, SA
2012
Source PublicationJOURNAL OF LUMINESCENCE
ISSN0022-2313
Volume132Issue:6
AbstractHigh density of silicon nanowires (SiNWs) were synthesized by a hot-wire assisted plasma enhanced chemical vapor deposition technique. The structural and optical properties of the as-grown SiNWs prepared at different rf power of 40 and 80 W were analyzed in this study. The SiNWs prepared at rf power of 40 W exhibited highly crystalline structure with a high crystal volume fraction. X-C of similar to 82% and are surrounded by a thin layer of SiOx. The NWs show high absorption in the high energy region (E > 1.8 eV) and strong photoluminescence at 1.73 to 2.05 eV (red-orange region) with a weak shoulder at 1.65 to 1.73 eV (near IR region). An increase in rf power to 80 W reduced the X-C to similar to 65% and led to the formation of nanocrystalline Si structures with a crystallite size of < 4 nm within the SiNWs. These NWs are covered by a mixture of uncatalyzed amorphous Si layer. The SiNWs prepared at 80 W exhibited a high optical absorption ability above 99% in the broadband range between 220 and similar to 1500 nm and red emission between 1.65 and 1.95 eV. The interesting light absorption and photoluminescence properties from both SiNWs are discussed in the text. (C) 2012 Elsevier B.V. All rights reserved.
Language英语
Funding Project应物所项目组
WOS IDWOS:000302662700006
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13296
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Chong, SK,Goh, BT,Wong, YY,et al. Structural and photoluminescence investigation on the hot-wire assisted plasma enhanced chemical vapor deposition growth silicon nanowires[J]. JOURNAL OF LUMINESCENCE,2012,132(6).
APA Chong, SK.,Goh, BT.,Wong, YY.,Nguyen, HQ.,Do, H.,...&Rahman, SA.(2012).Structural and photoluminescence investigation on the hot-wire assisted plasma enhanced chemical vapor deposition growth silicon nanowires.JOURNAL OF LUMINESCENCE,132(6).
MLA Chong, SK,et al."Structural and photoluminescence investigation on the hot-wire assisted plasma enhanced chemical vapor deposition growth silicon nanowires".JOURNAL OF LUMINESCENCE 132.6(2012).
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