Abstract：Electrochromic materials can be widely used in energy efficient windows, static displays as well as military fields owing to their switchable reflection, transmission and absorption towards solar irradiation. As an important ion storage layer and anode electrochromic material, nickel oxide (NiO) has the advantages of large optical contrast, abundant sources and environment-friendly, however, disadvantages of poor cycling stability and sluggish response speed as well. To circumvent the obstacle, it is crucial to design a rational architecture of NiO structures. Herein, this paper reviews recent advances on the construction of porous NiO films as well as their electrochromic performance. Structure and electrochromic property characteristics of the NiO porous films obtained by different preparation methods are discussed. In addition, electrochromic properties of compact and porous NiO films are compared. Finally, development prospect of porous NiO films in electrochromism is considered.
2022, Vol. 29 