Fabrication and photoluminescence of hyperbranched silicon nanowire networks on silicon substrates by laser-induced forward transfer
Fabrication and photoluminescence of hyperbranched silicon nanowire networks on silicon substrates by laser-induced forward transfer
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通过激光诱导正向转移在硅基底上制备超支化硅纳米线网络并进行光致发光
DOI：
10.1088/0957-4484/19/24/245303
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发表时间：
2008-06
期刊：
影响因子：
3.5
通讯作者：
Chuanli Qin,Li Zhang
中科院分区：
文献类型：
--
作者：
Muriel LA Rigout;Haijun Niu;Chenming Li,Xudou Bai , Naiying Fan;Chuanli Qin,Li Zhang
本文报道了用改进的激光诱导硅前向转移方法制备的薄膜的结构和光致发光特性。强烈的变化与环境气体组成的结构：在Ar中，观察到相互团聚的硅纳米粒子的多孔膜，而在空气中的膜组成的超支化纳米线（SiHBNW）的直径周期性地变化沿着其长度的网络，并由结晶硅纳米粒子包围和互连的不同化学计量的无定形氧化硅。的结构的形成机制，详述和解释的动力学内的羽。对于SiHBNW，荧光成像的开创性使用被用来获得来自晶体纳米颗粒本身的光致发光的证据，并且发射带的起源因此被归因于相应地在Si/SiO2界面处的激子的辐射复合。
The structure and photoluminescent properties of films obtained by modified laser-induced forward transfer of silicon are presented. Strong variations in structure with ambient gas composition are observed: in Ar, porous films of mutually agglomerated silicon nanoparticles are observed, while in air the films consist of a network of hyperbranched nanowires (SiHBNWs) whose diameter varies periodically along their length, and which are composed of crystalline silicon nanoparticles surrounded and interconnected by amorphous silicon oxide of varying stoichiometry. The mechanisms of formation of the structures are dwelt upon and explained in term of dynamics within the plume. For the SiHBNWs, the pioneering use of fluorescence imaging was employed to obtain evidence for the photoluminescence originating from the crystalline nanoparticles themselves, and origins of the emission bands are thus attributed to radiative recombination of excitons at the Si/SiO2 interface accordingly.
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影响因子：
4
作者：
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通讯作者：
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影响因子：
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作者：
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影响因子：
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