Green ErIII luminescence in fractal ZnO nanolattices

Doped Semiconductor Nanocrystals: Synthesis, Characterization, Physical Properties, and Applications

“…5 (79). This tetramer and the related decameric cluster, [(OAc) 12 (Zn 10 O 4 )], have been detected by desorption chemical ionization-mass spectrometry (DCI-MS) in the analogous synthesis of ZnO in ethanol (80). Extrapolation of the ZnO band-gap absorbance back to zero intensity in Fig.…”

Hydrothermal growth of ZnO nanostructures

“…LiOH, NaOH, etc) [28]. There are reports of modifications of the ZAH dehydration or dissolution and subsequent condensation for the growth of ZnO nanostructures [29][30][31]. The search for primary clusters to serve as building blocks for various nanostructures has been going on for quite some time.…”

Triple excitation with dual emission in paramagnetic ZnO:Er3+ nanocrystals

“…ZnO is a unique multifunctional semiconductor due to its direct band gap (3.37 eV) that can host 4f levels of RE ions [7][8][9] to exhibit excellent optical properties, 5,6 anisotropic structure and spontaneous polarization that render ZnO properties such as lasing, piezoelectric and ferroelectric behaviour 10,11 and also dilute magnetism with appropriate doping. 12,13 Among all RE ions, Er 3+ ion is most suitable for upconversion of IR photons with wavelength 1 mm and longer due to its level spacing of ground 4 I 15/2 level and lowest excitable 4 I 13/2 and 4 I 11/2 levels.…”