Functionalization of Silicon Nanostructures for Energy‐Related Applications,Small

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Functionalization of Silicon Nanostructures for Energy‐Related Applications
Small ( IF 13.0 ) Pub Date : 2017-09-20 , DOI: 10.1002/smll.201701713
Naoki Fukata ₁ , Thiyagu Subramani ₁ , Wipakorn Jevasuwan ₁ , Mrinal Dutta ₁ , Yoshio Bando ₁

Affiliation

Silicon (Si) is used in various application fields such as solar cells and electric devices. Functionalization of Si nanostructures is one way to further improve the properties of these devices such as these. This Review summarizes recent results of solar cell and Li‐ion battery applications using Si‐related nanostructures. In solar cell applications, the light trapping effect is increased and the carrier recombination rate is decreased due to the short carrier collection path achieved by radially constructed p–n junction in Si nanowires, resulting in higher power conversion efficiency. The nonradiative energy transfer effect created by nanocrystalline Si is a novel way of improving solar cell properties. Si‐related nanostructures are also anticipated as new anode materials with higher capacity in Li‐ion batteries. Si‐related nanocomposite materials which show densely packed microparticle structures agglomerated with small nanoparticles are described here as a promising challenge. These unique structures show higher capacity and longer cycle properties.

中文翻译：

用于能源相关应用的硅纳米结构的功能化

硅（Si）用于各种应用领域，例如太阳能电池和电子设备。Si纳米结构的功能化是进一步改善诸如此类器件的性能的一种方式。这篇综述总结了使用硅相关纳米结构的太阳能电池和锂离子电池应用的最新结果。在太阳能电池应用中，由于Si纳米线中径向构建的p–n结实现了短的载流子收集路径，因此提高了光捕获效果，并降低了载流子复合率，从而提高了功率转换效率。纳米晶硅产生的非辐射能量转移效应是一种改善太阳能电池性能的新颖方法。硅相关的纳米结构也有望成为锂离子电池中容量更高的新型负极材料。硅相关的纳米复合材料显示出紧密堆积的微粒结构，这些结构与小纳米颗粒凝聚在一起，这是一个有前途的挑战。这些独特的结构显示出更高的容量和更长的循环特性。

更新日期：2017-09-20

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