Some articles on zno:
Zinc Oxide - Production - Laboratory Synthesis
... A large number of specialised methods exist for producing ZnO for scientific studies and niche applications ... These methods can be classified by the resulting ZnO form (bulk, thin film, nanowire), temperature ("low", that is close to room temperature or "high", that is T ~ 1000 °C), process ... However, because of high vapor pressure of ZnO, growth from the melt is problematic ...
... A large number of specialised methods exist for producing ZnO for scientific studies and niche applications ... These methods can be classified by the resulting ZnO form (bulk, thin film, nanowire), temperature ("low", that is close to room temperature or "high", that is T ~ 1000 °C), process ... However, because of high vapor pressure of ZnO, growth from the melt is problematic ...
Zinc Oxide - Potential Applications - Electronics
... ZnO has wide direct band gap (3.37 eV or 375 nm at room temperature) ... Some optoelectronic applications of ZnO overlap with that of GaN, which has a similar bandgap (~3.4 eV at room temperature) ... Compared to GaN, ZnO has a larger exciton binding energy (~60 meV, 2.4 times of the room-temperature thermal energy), which results in bright room-temperature emission from ZnO ...
... ZnO has wide direct band gap (3.37 eV or 375 nm at room temperature) ... Some optoelectronic applications of ZnO overlap with that of GaN, which has a similar bandgap (~3.4 eV at room temperature) ... Compared to GaN, ZnO has a larger exciton binding energy (~60 meV, 2.4 times of the room-temperature thermal energy), which results in bright room-temperature emission from ZnO ...
Zinc Oxide - Chemical Properties
... ZnO occurs as a white powder ... in water, but it is soluble in (degraded by) most acids, such as hydrochloric acid ZnO + 2 HCl → ZnCl2 + H2O Bases also degrade the solid to give soluble zincates ZnO + 2 NaOH + H2O ... ZnO forms cement-like products when mixed with a strong aqueous solution of zinc chloride and these are best described as zinc hydroxy chlorides ...
... ZnO occurs as a white powder ... in water, but it is soluble in (degraded by) most acids, such as hydrochloric acid ZnO + 2 HCl → ZnCl2 + H2O Bases also degrade the solid to give soluble zincates ZnO + 2 NaOH + H2O ... ZnO forms cement-like products when mixed with a strong aqueous solution of zinc chloride and these are best described as zinc hydroxy chlorides ...
Grog (clay) - Applications
... Other uses for grog is processing ZnO Metal Oxide Varistor (MOV) ... This is because ZnO MOV has a polymer binder that upon drying acts as a glue ... The grog is a gritty form of ZnO to prevent contamination ...
... Other uses for grog is processing ZnO Metal Oxide Varistor (MOV) ... This is because ZnO MOV has a polymer binder that upon drying acts as a glue ... The grog is a gritty form of ZnO to prevent contamination ...
Synthesis - ZnO Nanorods
... Zinc oxide (ZnO) nanorod, also known as nanowire, has a direct bandgap energy of 3.37 eV, which is similar to that of GaN, and it has an excitation binding energy of 60 meV ... More interestingly, the optical bandgap of ZnO nanorod can be tuned by changing the morphology, composition, size etc ... Recent years, ZnO nanorods have been intensely used to fabricate nano-scale electronic devices, including field effect transistor, ultraviolet photodetector, Schottky diode, and ultra-bright light-emitting diode ...
... Zinc oxide (ZnO) nanorod, also known as nanowire, has a direct bandgap energy of 3.37 eV, which is similar to that of GaN, and it has an excitation binding energy of 60 meV ... More interestingly, the optical bandgap of ZnO nanorod can be tuned by changing the morphology, composition, size etc ... Recent years, ZnO nanorods have been intensely used to fabricate nano-scale electronic devices, including field effect transistor, ultraviolet photodetector, Schottky diode, and ultra-bright light-emitting diode ...