Abstract
In this study, we fabricated and characterized three dimensional (3D) silicon (Si)/zinc oxide (ZnO) hybrid subwavelength structures to investigate their antireflective properties. Si nanorods (SiNRs) were fabricated by electrochemical etching, and subsequentially we grew ZnO NRs on SiNR as templates by using hydrothermal synthesis. The morphological and optical properties of hybrid Si/ZnO subwavelength structures were investigated by scanning electron microscopy (SEM) and ultra violet-visible-near infrared (UV-VIS-NIR) spectrophotometer, respectively. The reflectance on SiNRs is greatly reduced comparing with that on the conventional textured Si surface. Moreover, the hybrid SiNR/ZnO NR structures gave the lowest reflectance (<3%) throughout the broadband spectrum range. We suggest that the combination of SiNRs and ZnO NRs trap light, leading to suppressing light reflection and increasing light scattering to the hybrid structures.
| Original language | English |
|---|---|
| Pages (from-to) | 6359-6361 |
| Number of pages | 3 |
| Journal | Journal of Nanoscience and Nanotechnology |
| Volume | 13 |
| Issue number | 9 |
| DOIs | |
| State | Published - Sep 2013 |
Bibliographical note
Funding Information:In recent years, the proliferative response of primed T cells to soluble protein or synthetic polypeptide antigens has emerged as a useful system for studying T cell activation by antigen and T cell-macrophage interaction (Rosenthal and Shevach, 1973; Paul et al., 1977; Yano et al., 1977). Most of the work has been done on the guinea pig system because of the relative ease of obtaining good T cell proliferation (Rosenthal and Shevach, 1973; Paul et al., 1977; Rosenthal et al., 1977). Until recently, comparable responses had not been obtainable in the murine system which offers great advantages for genetic manipulation. Earlier literature abounds with studies of murine lymphoid cell proliferation (Vischer and Jaquet, 1972; Moorhead et al., 1973; Osborne and Katz, 1973; Lonai and McDevitt, 1974; Mugraby et al., 1 This work was supported by grants from the National Cancer Institute of Canada and the Medical Research Fund, University of Alberta, to K.C. Lee, and from the Medical Research Council of Canada to M. Barton. 2 Research Scholar of the National Cancer Institute of Canada, to whom all correspondence should be addressed. 3 B. Singh acknowledges personal support from the Medical Research Council of Canada Group on Immunoregulation.
Keywords
- Antireflection coating
- Silicon wire
- Subwavelength structures
- ZnO nanorods