|標題:||Photoluminescence and Raman spectroscopy of single diamond nanoparticle|
|作者:||Sun, K. W.|
Wang, J. Y.
Ko, T. Y.
Department of Applied Chemistry
Institute of Molecular science
|摘要:||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 (similar to 1 mu m) 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 sp(3) bonding Raman peak when the size of the single nanodiamond is reduced due to the phonon-confinement effects.|
|期刊:||JOURNAL OF NANOPARTICLE RESEARCH|
|Appears in Collections:||Articles|