Hollow Boron Nitride (BN)Nanocages and BN-Nanocage-Encapsulated Nanocrystals

摘要

Hollow boron nitride (BN)nanocages (nanospheres,image on the left)and BN-nanocage-encapsulated GaN nanocrystals (right)have been synthesized by using a homemade B- N-O precursors.The as-prepared BN hollow nanocages have typically spherical morphologies with diameters ranging from 30 to 200 nm.The nanocages have crystalline structures.Peanutlike nanocages with double walls have also been observed;their internal space is divided into seperated compartments by the internal walls.The method is extended to sheathe nanocrystals with BN nanocages;BN-shell/GaN-core nanostructures have been successfully fabriacted.The method may be generally applicable to the fabrication BN-sheathed nanocrystals.