Abstract：A series of silicon nanoporous pillar array (Si-NPA) samples are prepared with different times of hydrothermal etching, and their surface morphologies are characterized. A systematic study on the evolution trend of the surface photovoltage and photoluminescence spectra discloses that the adoption of a prolonged etching time will increase the native degree of oxidation and decrease the interfacial states density localized in the SiOx matrix. These results might be helpful for designing Si-NPA-based semiconductor nanosystems with optimized physical properties.
. [J]. 中国物理快报, 2013, 30(6): 67803-067803.
HU Zhen-Gang, TIAN Yong-Tao, LI Xin-Jian. The Surface Photovoltaic and Photoluminescent Evolution of a Silicon Nanoporous Pillar Array for Different Etching Times. Chin. Phys. Lett., 2013, 30(6): 67803-067803.
2013, Vol. 30 
