A review on zinc oxide composites for energy storage applications: solar cells, batteries, and supercapacitors

Abstract

Zinc oxide (ZnO) is used for various purposes because of its special physico-chemical properties, including large band gap, high binding energy of exciton, nontoxicity, high chemical and thermal stability, large piezoelectric constants, and wurtzite crystal structure with various and widespread applications in electronics, optoelectronics, biochemical sensing, biomedical, and energy-saving systems. This review mainly aimed to present the recent improvement in ZnO-based composite materials with utilization in energy storage systems with a specific focus on lithium-ion batteries, dye-sensitized solar cells, and supercapacitors. The first part of this paper looks at the structure and properties of ZnO and then describes some of the most common synthesizing methods of ZnO composites, including electrochemical, chemical, solvo/hydrothermal, and physical deposition methods. Finally, the recent advancement of ZnO-based composite materials applied in energy storage systems was discussed.

Biosensors and nanotechnology for cancer diagnosis (lung and bronchus, breast, prostate, and colon): a systematic review

“…Various nanoparticles containing metal oxides have been used in drug release and biosensors. They include oxide nanoparticles of magnesium, aluminum, calcium, iron, and zinc [68][69][70][71][72][73]. In general, DC magnetic nanoparticles are prepared by coprecipitation of aqueous salts of Fe (III) and Fe (II) by adding a base [65].…”

Sol-gel zinc oxide nanoparticles: advances in synthesis and applications

“…Its potential applications are because of its electrical, optical, photochemical, and catalytic properties, and environmentally friendly nature of ZnO nanoparticles that have been widely investigated. ZnO nanoparticles have a wide application ranges such as biosensors, gas sensors, solar cells, ceramics, optical detectors, nanogenerators, active fillers for rubber, catalysts, and plastics, UV absorbers, cosmetics, and antiviral coatings, pigments of optical materials, optical and patriotic materials, optical probes, additives in high products of industrial and water and wastewater treatment [18][19][20][21][22][23][24][25][26]. In various articles, many scientists have reported the characterization and synthesis of nanostructures of ZnO in different ways including co-precipitation [27,28], sol-gel technique, laser erosion, hydrothermal procedure, and coating deposition, electrochemical sediments, vapor chemical deposition, fabrication of green natural products, and so on.…”