Abstract
The article reports techniques that we have devised for immobilizing and allocating a single nanodiamond on the electron beam (E-beam) lithography patterned semiconductor substrate. By combining the E-beam patterned smart substrate with the high throughput of a confocal microscope, we are able to overcome the limitation of the spatial resolution of optical techniques (~1 μm) to obtain the data on individual nano-object with a size range between 100 and 35 nm. We have observed a broad photoluminescence centered at about 700 nm from a single nanodiamond which is due to the defects, vacancies in the nanodiamonds, and the disordered carbon layer covered on the nanodiamond surface. We also observe red-shift in energy and broadening in linewidth of the sp3 bonding Raman peak when the size of the single nanodiamond is reduced due to the phonon-confinement effects.
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This work was supported by the National Science Council of Republic of China under contract No. NSC 96-2112-M-009-024-MY3 and the MOE ATU program.
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Sun, K.W., Wang, J.Y. & Ko, T.Y. Photoluminescence and Raman spectroscopy of single diamond nanoparticle. J Nanopart Res 10 (Suppl 1), 115–120 (2008). https://doi.org/10.1007/s11051-008-9406-z
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DOI: https://doi.org/10.1007/s11051-008-9406-z