Facile Pyrolytic Synthesis of Silicon Nanowires.
Facile Pyrolytic Synthesis of Silicon Nanowires.
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DOI：
10.1016/j.sse.2010.05.011
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发表时间：
2010-10-01
影响因子：
1.7
通讯作者：
Rananavare SB
中科院分区：
文献类型：
--
作者：
Chan JC;Tran H;Pattison JW;Rananavare SB
一维纳米结构，如硅纳米线（SiNW）是低功率密度电子和光电器件，包括传感器的有吸引力的候选人。本文提出了一种新的硅纳米线体相合成方法，该方法成本低廉，材料毒性低，是一种安全、节能、绿色的合成方法。该方法使用低可燃性液体苯基硅烷，与使用硅烷气体相比，为SiNW生长提供了更安全的途径。采用一种新型的双腔玻璃容器，以金纳米颗粒为催化剂，通过气-液-固机理在低压环境中生长硅纳米线。催化剂分解二苯基硅烷和三苯基硅烷的硅前体蒸气，并沉淀出单晶SiNW，其看起来平行于衬底表面生长。这开辟了可能性，合成纳米结之间的电线，这是重要的网格架构的纳米电子学提出的Likharev。甚至使用可以在合成后溶解的牺牲衬底如CaCO 3来本体合成SiNW也是可行的。此外，通过将适当的掺杂剂溶解在液体二苯基硅烷中，在不使用有毒气体和昂贵的质量流量控制器的情况下实现了纳米线的受控掺杂。硼掺杂后，我们观察到的光致发光光谱的特征红移。总之，提出了一种廉价和通用的硅纳米线方法，使这些外来材料以低成本提供给任何实验室。
One-dimensional nanostructures such as silicon nanowires (SiNW) are attractive candidates for low power density electronic and optoelectronic devices including sensors. A new simple method for SiNW bulk synthesis is demonstrated in this work, which is inexpensive and uses low toxicity materials, thereby offering a safe, energy efficient and green approach. The method uses low flammability liquid phenylsilanes, offering a safer avenue for SiNW growth compared with using silane gas. A novel, duo-chamber glass vessel is used to create a low-pressure environment where SiNWs are grown through vapor-liquid-solid mechanism using gold nanoparticles as a catalyst. The catalyst decomposes silicon precursor vapors of diphenylsilane and triphenylsilane and precipitates single crystal SiNWs, which appear to grow parallel to the substrate surface. This opens up possibilities for synthesizing nano-junctions amongst wires which is important for the grid architecture of nanoelectronics proposed by Likharev. Even bulk synthesis of SiNW is feasible using sacrificial substrates such as CaCO3 that can be dissolved post-synthesis. Furthermore, by dissolving appropriate dopants in liquid diphenylsilane, a controlled doping of the nanowires is realized without the use of toxic gases and expensive mass flow controllers. Upon boron doping, we observe a characteristic red shift in photoluminescence spectra. In summary, an inexpensive and versatile method for SiNW is presented that makes these exotic materials available to any lab at low cost.
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DOI：
10.1007/s00339-006-3708-8
发表时间：
2006-11-01
影响因子：
2.7
作者：
Colli, A.;Hofmann, S.;Robertson, J.
通讯作者：
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影响因子：
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作者：
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通讯作者：
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影响因子：
15
作者：
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通讯作者：
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影响因子：
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作者：
BRUS, L
通讯作者：
BRUS, L
影响因子：
3
作者：
Jeon, Minsung;Kamisako, Koichi
通讯作者：
Kamisako, Koichi