Optical and electrical properties of Zn2SiO4:Mn2+ powder electroluminescent device

Effects of polyvinylpyrrolidone on structural and optical properties of willemite semiconductor nanoparticles by polymer thermal treatment method

“…Inorganic metal oxide semiconductor NPs formed in the polymer matrices had attracted significant attention, due to the outstanding characteristics of the materials [9][10][11][12].The NPs fabricated in such manner exhibited interesting properties such as optical, electrical, magnetic, catalytic, and mechanical features that were distinct from those observed in their molecular and bulk materials counterparts [13][14][15]. Willemite or zinc silicate (Zn 2 SiO 4 ) belongs to the families of functional inorganic semiconductor materials, and it has been reported to have potentials for phosphors applications [16][17][18]. For example, in photonic devices [19,20], laser crystals [21,22], optoelectronics [23,24], as well as adsorbents [25,26].…”

“…For example, in photonic devices [19,20], laser crystals [21,22], optoelectronics [23,24], as well as adsorbents [25,26]. Several investigations regarding the synthesis techniques of willemite have been reported by numerous researchers, including the sol-gel technique [27,28], solid-state route [18,[29][30][31], co-precipitation method [32], spray pyrolysis method [33] spray drying method [34], hydrothermal method [35,36], supercritical methods [37,38], solvothermal method [39] and sonochemical method [40]. Conventional sol-gel and solid-state technique are often used methods for producing willemite NPs for phosphor application.…”

“…Similarly, Babu and Buddhudu [42] produced willemite NPs with a mean particle size of 100 nm. However, this involves a very long reaction period by allowing the precursor to be evaporated naturally in the air for 2 or 3 months and later calcined at 950°C for 2 h. On the other hand, solid-state technique often involves higher calcination temperature as compared to sol-gel, usually ranging between 1000 and 1500°C [18,30,31]. For instance, Diao et al [43] fabricated willemite NPs with average size larger than 200 nm using solid-state technique at a temperature between 900 and 1300°C.…”

Quantum mechanical modeling of Zn‐based spinel oxides: Assessing the structural, vibrational, and electronic properties

“…These applications have stimulated many investigations on the spectroscopic properties of transition metal and rare‐earth ions‐doped Zn 2 SiO 4 phosphors. [ 31–35 ] In particular, the doped Zn 2 SiO 4 phosphors are widely applied in luminescence thermometry, electroluminescent devices, fluorescent lamps, plasma display panels, white light‐emitting diodes, cathode ray tubes, and optoelectronic devices. [ 36 ]…”

“…These applications have stimulated many investigations on the spectroscopic properties of transition metal and rare-earth ions-doped Zn 2 SiO 4 phosphors. [31][32][33][34][35] In particular, the doped Zn 2 SiO 4 phosphors are widely applied in luminescence thermometry, electroluminescent devices, fluorescent lamps, plasma display panels, white lightemitting diodes, cathode ray tubes, and optoelectronic devices. [36] Germanium-based composites, such as zinc orthogermanate (Zn 2 GeO 4 ), have been reported for potential applications in light-emitting devices, photocatalysis, and lithium-ion batteries, in which Zn 2 GeO 4 materials can be doped with rare-earth ions or transition metal ions to show excellent properties.…”