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The samples of silicon nanoporous pillar array( Si-NPA) were prepared by a hydrothermal etching method and were carbonized at high temperature with different times. The photoluminescence( PL) spectra of carbonized Si-NPA were measured and compared with that of freshly prepared samples.It was found that after carbonization,an ultraviolet PL peak newly appeared and the blue PL was greatly enhanced,accompanied with the disappearance of the red PL peak of Si-NPA. Combined with the Raman analysis on the existing status of carbon atoms in Si-NPA,the blue and the ultraviolet emissions were attributed to the PL from the defect states of silicon oxide and doping carbon atoms in Si-NPA,respectively. The results might provide some useful information for clarifying the PL mechanism and realizing stable PL of Si-NPA.
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Basic Information:
China Classification Code:O482.31
Citation Information:
[1]HU Chu-xiong,WANG Xiao-bo,YAN Ling-ling ,et al.Photoluminescence of Carbonized Silicon Nanoporous Pillar Array[J].Journal of Zhengzhou University(Natural Science Edition),2015,47(03):64-68.
Fund Information:
国家自然科学基金资助项目,编号61176044
2015-09-17
2015-09-17
2015-09-17