Pencil-shaped silicon nanowire synthesis and photovoltaic application
Pencil-shaped silicon nanowire synthesis and photovoltaic application
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DOI：
10.7567/jjap.56.085201
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发表时间：
2017-07
影响因子：
1.5
通讯作者：
W. Jevasuwan;Junyi Chen;T. Subramani;K. Pradel;T. Takei;K. Dai;Kei Shinotsuka;Yoshihisa Hatta;N. Fukata
中科院分区：
文献类型：
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作者：
W. Jevasuwan;Junyi Chen;T. Subramani;K. Pradel;T. Takei;K. Dai;Kei Shinotsuka;Yoshihisa Hatta;N. Fukata
采用胶体光刻和电感耦合等离子体反应离子刻蚀技术制备了用于光伏应用的铅笔状硅纳米线。通过非对称的锯齿形硅纳米线阵列可以获得低于10%的光反射率。研究了纳米压印硅纳米线的结构和性能，并与金属催化化学腐蚀（MCEE）和纳米压印硅纳米线进行了比较。采用化学气相沉积法制备了n-SiNW和p-Si壳层构成的单结太阳电池。两步氢退火和背表面场形成的组合应用于改善太阳能电池的性能。良好的晶体质量和表面的锯齿形硅纳米线提供了一个良好的太阳能电池结界面。与使用MCEE和纳米压印硅纳米线的太阳能电池相比，具有很强的光捕获能力的锯齿形硅纳米线太阳能电池可以将转换效率提高0.6%以上。
Pencil-shaped silicon nanowires (SiNWs) were synthesized by colloidal lithography and inductively coupled plasma reactive ion etching for photovoltaic application. Light reflectance of below 10% could be obtained by the asymmetric pencil-shaped SiNW array. The pencil-shaped SiNW structure and properties were investigated and compared with metal catalyzed electroless etching (MCEE) and nanoimprinted SiNWs. Single-junction solar cells consisting of pencil-shaped n-SiNW substrates and p-Si shell layer grown by chemical vapor deposition were fabricated. A combination of two-step H2 annealing and back surface field formation was applied to improve the solar cell properties. Good crystal quality and surface of pencil-shaped SiNWs provided an excellent solar cell junction interface. The great light trapping of the pencil-shaped SiNW solar cell could enhance the conversion efficiency by more than 0.6% compared to the solar cells using MCEE and nanoimprinted SiNWs.