Photoluminescence of Manganese-doped ZnAl2O4 nanophosphors

Low-voltage cathodoluminescence properties of green-emitting ZnAl2O4:Mn2+ nanophosphors for field emission display

“…Under the electron beam irradiation in vacuum, intense cathodoluminescence (CL) with high chromaticity was observed. The CL intensity can be enhanced by the careful control of the cationic molar ratio of Zn to Al atoms and a post-synthesis treatment [9,13,15,16]. The above results suggest that Mn-doped ZnAl 2 O 4 would be a good green-emitting CL phosphor for low-voltage FEDs.…”

“…Tel. : +86 Similar to ZnGa 2 O 4 , zinc aluminate (ZnA1 2 O 4 ) is also a wellknown wide-band gap semiconductor which has an optical bandgap of about 3.8 eV [8,9]. It has attracted many interests as a phosphor host material for applications to thin film electroluminescent displays, mechano-optical stress sensors, and stress imaging devices because of its moderate conductivity, high thermal and chemical stability, and good optical and catalytic properties.…”

Luminescent properties and X-ray photoelectron spectroscopy study of ZnAl2O4:Ce3+,Tb3+ phosphor

“…Researchers in this study are particularly interested in the performance of a nanocrystalline ZnAl 2 O 4 because of the speculation that nanocrystalline materials may have better optical properties than their bulk counterparts [11]. Different synthesis methods such as sol-gel [16,17], hydrothermal [18,19], combustion [6,15,20] and solid state reaction [21] are commonly used to prepare rare-earth/transition metal doped nanocrystalline ZnAl 2 O 4 phosphors. In this study, the solution combustion method was used to prepare Ce 3+ -Tb 3+ co-activated nanocrystalline ZnAl 2 O 4 phosphors.…”

Synthesis of Ni2+‐doped ZnAl2O4/ZnO Composite Phosphor Film with Largely Enhanced Polychromatic Emission via a Single‐Source Precursor

“…Zinc aluminate spinel (ZnAl 2 O 4 ), known as an important transparent semiconductor with a wide band gap of 3.8 eV, is widely used as dielectric materials, optical materials, and sensors. It is reported that ZnAl 2 O 4 is a good phosphor host material which made active center easy to have better dispersion and higher photon emission intensity . Recently, Ni 2+ ‐activated ZnAl 2 O 4 phosphor also has been explored to improve its near‐infrared emission property .…”