Comparative Study of Silicon Nanowires Grown From Ga, In, Sn, and Bi for Energy Harvesting
Comparative Study of Silicon Nanowires Grown From Ga, In, Sn, and Bi for Energy Harvesting
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DOI：
10.1109/jphotov.2020.3012628
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发表时间：
2020-08
影响因子：
3
通讯作者：
Krishna Nama Manjunatha;I. Salaoru;W. Milne;S. Paul
中科院分区：
文献类型：
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作者：
Krishna Nama Manjunatha;I. Salaoru;W. Milne;S. Paul
使用低共晶温度金属催化剂（即镓、铟、锡和铋）在单晶硅晶片上制造用于太阳能电池应用的高密度硅纳米线。利用硅纳米线进行光捕获，旨在提高太阳能电池的效率。此外，我们还优化了沉积参数，使得在硅纳米线的生长过程中仅沉积非晶硅。因此，它可以提高硅基太阳能电池的稳定性。广泛讨论了所使用的不同催化剂，实验结果表明硅纳米线可以稳定生长且高效用于光伏应用。为了测试稳定性，我们测量了四个小时的开路电压，电压变化为±0.05 V。全晶硅太阳能电池的制造采用目前用于非晶硅太阳能电池的传统成熟工业制造工艺进行了演示。总而言之，这项研究比较了各种后过渡金属作为纳米线生长的催化剂，讨论了它们的特性，并且这种硅纳米线可以用于其他几种应用，而不仅限于光伏研究。
A high density of silicon nanowires for solar cell applications was fabricated on a single crystalline silicon wafer, using low eutectic temperature metal catalysts, namely, gallium, indium, tin, and bismuth. The use of silicon nanowires is exploited for light trapping with an aim to enhance the efficiency of solar cells. Additionally, we have optimized the deposition parameters so that there is merely deposition of amorphous silicon along with the growth of silicon nanowires. Thus, it may improve the stability of silicon-based solar cells. The different catalysts used are extensively discussed with experimental results indicating stable growth and highly efficient silicon nanowires for photovoltaic applications. To test the stability, we measured the open-circuit voltage for four hours and the change in voltage was ±0.05 V. The fabrication of all-crystalline silicon solar cells was demonstrated using the conventional mature industrial manufacturing process that is presently used for the amorphous silicon solar cells. To summarize, this research compares various post-transition metals as a catalyst for the growth of nanowires discussing their properties, and such silicon nanowires can be utilized in several other applications not only limited to photovoltaic research.