| AVS 55th International Symposium & Exhibition | |
| Nanometer-scale Science and Technology | Tuesday Sessions |
| Session NS-TuP |
| Session: | Poster Session |
| Presenter: | Q. Dai, Worcester Polytechnic Institute |
| Authors: | Q. Dai, Worcester Polytechnic Institute N. Xiao, Jilin University, China B. Zou, Jilin University, China W. Yu, Worcester Polytechnic Institute |
| Correspondent: | Click to Email |
We introduce a nontoxic, simple, cheap and reproducible strategy, which meets the standard of green chemistry, for the synthesis of ZnSe nanoflowers. These green nanomaterials with a zinc blende structure can be readily scaled up and produced directly at ambient condition without affecting their qualities. A systematic study of the nanoflower formation process indicates the recently reported “limited ligand protection” mechanism cannot be employed to explain the formation of our nanoflowers. Instead, a new growth mechanism is proposed: Upon heating at high temperature, mononuclear Zn complexes convert to polynuclear Zn complexes with multiple Zn atoms. Each Zn atom grows into one ZnSe nanoparticle after the injection of Se solution. These nanoparticles closely connect and thus look like nanoflowers.