Synthesis, characterization, and optical properties of ordered arrays of III-nitride nanocrystals.
A new approach involving self-assembling block copolymer micellar templates and gas-phase reactions to synthesize arrays of monodisperse III-nitrides nanocrystals in the size range of 1-5 nm with uniform spacings between the nanoparticles is demonstrated. The photoluminescence emission spectra revealed the GaN nanocrystals are in the quantum-confined regime. This method not only offers great promise for the controlled synthesis of arrays of ternary III-nitride nanocrystals but may also enable doping in binary nitrides.
Bhaviripudi
Sreekar
S
Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
Qi
Jifa
J
Hu
Evelyn L
EL
Belcher
Angela M
AM
D003460:Crystallization; D005708:Gallium / Q000737:chemistry*; D049449:Luminescence; D053768:Metal Nanoparticles / Q000737:chemistry*; D008823:Micelles; D018625:Microscopy, Atomic Force; D046529:Microscopy, Electron, Transmission; D008956:Models, Chemical; D053758:Nanoparticles / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*; D009584:Nitrogen / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry; D010777:Photochemistry / Q000379:methods; D011108:Polymers / Q000737:chemistry; D012825:Silicon / Q000737:chemistry; D013053:Spectrophotometry / Q000379:methods; D014961:X-Ray Diffraction
D008823:Micelles; D011108:Polymers; C473348:gallium nitride; D005708:Gallium; D009584:Nitrogen; D010100:Oxygen; D012825:Silicon