Nanoforest of black silicon fabricated by AIC and RIE method
Nanoforest of black silicon fabricated by AIC and RIE method
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DOI:
10.1016/j.matlet.2015.11.062
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发表时间:
2016-02
影响因子:
3
通讯作者:
Qiu-lin Tan;Licheng Tang;H. Mao;Chen Yuanjing;Yaohui Ren;Cheng Lei;F. Yuan;W. Ou;J. Xiong
中科院分区:
文献类型:
--
作者:
Qiu-lin Tan;Licheng Tang;H. Mao;Chen Yuanjing;Yaohui Ren;Cheng Lei;F. Yuan;W. Ou;J. Xiong
A nanoforest of black silicon was prepared using a method combining aluminum-induced crystallization (AIC) and reactive-ion etching (RIE). During the AIC period, a rough layer, incorporating AlSix intermetallics, was formed. This layer acted as an etch mask for the RIE step. X-ray photoelectron spectroscopic (XPS) measurements were performed to further analyze the formation of black silicon. Compared to Si3N4and polysilicon, the black silicon exhibits a high degree of infrared absorption for wavelengths of about 3 to 5 μm and 8 to 14 μm, respectively. In addition, black platinum overlaid on the base of black silicon further improves the infrared absorption. This nanostructure forests of black silicon could be incorporated into the fabrication process for gas detectors, photovoltaic devices, and imaging applications to improve the infrared absorption characteristics.