Blue-emitting Type-II Semiconductor Nanocrystals with High Efficiency Prepared by Aqueous Method
Forming a type-II structure on alloyed ZnSe core through a facile aqueous method using Cd and S ions resulted in nanocrystals with a photoluminescence wavelength adjusted to the blue region. Their surface was additionally coated by wider band-gap ZnS shell through photodecomposition of the surfactant molecules. Optimizing the conditions for creating the core and shells increased their emission efficiency more than 40%.
- Chemistry letters
Chemistry letters 36(3), 438-439, 2007-03-05
The Chemical Society of Japan