Effects of high-temperature annealing on the performance of copper oxide photodetectors

Recent innovations in the technology and applications of low-dimensional CuO nanostructures for sensing, energy and catalysis

“…Shariffar et al developed a UV-visible photodetector, based on copper oxide thin films, that displays enhanced optoelectronic properties if the films are synthesized at higher temperatures. 190 Such behavior could be explained by the grain-structure model. Further investigations revealed the influence of the grain size on the photocurrent, dark current, photosensitivity and responsivity.…”

“…55,56 This can be achieved via the utilization of various well-established technologies (see Fig. 1b) including low-temperature chemical synthesis, 57 high temperature annealing, 58 the in situ modification of various copper materials like copper foam, 59 anodization in a solution of sodium bicarbonate, 60 thermal oxidation of copper nanostructures, 61 facile solution-phase treatment techniques, 62 oxygen oxidation of foils 63 and many other techniques. 64…”

Hierarchical Nanomaterials by Selective Deposition of Noble Metal Nanoparticles: Insight into Control and Growth Processes

“…[26,27] However, copper oxide-based metamaterials suffer from such shortcomings as, for example, high rates of agglomeration, low conductivity, and insufficial electrochemical stability. These could be overcome by synergistically combining CuO with, for example, conducting polymers, carbon nanotubes or graphene-based materials [28,29] using in situ modification of copper foam, [30] room temperature chemical synthesis, [31] high temperature annealing, [32] thermal oxidation of pre-synthesized copper nanowires, [33] facile solution-phase technique, [34] anodization in sodium bicarbonate solution, [35] thermal oxidation of copper foil in oxygen [36] and many other methods. [37] Such a plethora of available technologies naturally gave rise to many studies aimed to reveal the parameters that control the growth, with the central question: Is it possible to efficiently control the architecture, structure, and morphology of the growing material through the simple adjustment of the synthesis conditions?…”

“…[ 26,27 ] However, copper oxide‐based metamaterials suffer from such shortcomings as, for example, high rates of agglomeration, low conductivity, and insufficial electrochemical stability. These could be overcome by synergistically combining CuO with, for example, conducting polymers, carbon nanotubes or graphene‐based materials [ 28,29 ] using in situ modification of copper foam, [ 30 ] room temperature chemical synthesis, [ 31 ] high temperature annealing, [ 32 ] thermal oxidation of pre‐synthesized copper nanowires, [ 33 ] facile solution‐phase technique, [ 34 ] anodization in sodium bicarbonate solution, [ 35 ] thermal oxidation of copper foil in oxygen [ 36 ] and many other methods. [ 37 ]…”