Use of additives in the electrodeposition of nanostructured Eu3+/ZnO films for photoluminescent devices.
Rare-earth ion-doped ZnO has been the focus of numerous investigations because of its unique optical properties and promising applications in optoelectronic devices. Here we presented a facile electrochemical deposition route for the controllable preparation of Eu3+/ZnO nanostructures on a large scale. The prepared Eu3+/ZnO deposits were characterized by scanning electron microscopy, energy dispersive spectroscopy, X-ray diffraction, selected area electron diffraction, and X-ray photoelectron spectroscopy. Herein, the growth mechanisms of Eu3+/ZnO nanosheets and nanorods were discussed. The formation process of Eu3+/ZnO foam-like nanostructures is illuminated in this paper. The room temperature photoluminescence properties of the Eu3+/ZnO foam-like nanostructures were investigated. The sharp 4f-4f transition emissions of Eu3+ can be directly observed at 593, 617, and 698 nm. An energy transfer between ZnO and Eu3+ is shown to occur under UV excitation.
Li
Gao-Ren
GR
MOE Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Institute of Optoelectronic and Functional Composite Materials, Sun Yat-Sen University, Guangzhou 510275, China.
Dawa
Ci-Ren
CR
Lu
Xi-Hong
XH
Yu
Xiao-Lan
XL
Tong
Ye-Xiang
YX
D002412:Cations; D004595:Electroplating; D005063:Europium / Q000737:chemistry*; D049408:Luminescent Agents / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D013053:Spectrophotometry; D015034:Zinc Oxide / Q000737:chemistry*
D002412:Cations; D049408:Luminescent Agents; D005063:Europium; D015034:Zinc Oxide