The review of typical applications of heterojunction anode materials in alkali metal ion batteries in recent years is presented.
The presented information covers the primary research status of diverse heterojunction anode materials: i) Schottky heterostructures: they arise when metals form electrical contacts with different types of semiconductors and can enhance the electrochemical properties of the materials very well due to their synergistic effects.
Silicon heterojunction (SHJ) solar cells have achieved a record efficiency of 26.81% in a front/back-contacted (FBC) configuration. Moreover, thanks to their advantageous high VOC and good infrared response, SHJ solar cells can be further combined with wide bandgap perovskite cells forming tandem devices to enable efficiencies well above 33%.
Silicon heterojunction devices rely on the use of thin‐film silicon coatings on either side of the wafer to provide surface passivation and charge carrier‐selectivity. Beyond traditional indium tin oxide, multiple higher‐mobility indium‐based transparent conductive oxides have been employed successfully in HJT cells.
Then, the impact of the heterojunction structure on the performance of solar flow batteries was investigate in this study. The experimental findings reveal that the formation of the heterojunction structure effectively mitigates the recombination rate of photogenerated carriers within the photoelectrode.
Many experiments have demonstrated that the creation of heterostructures can enhance the kinetic performance of ion batteries. However, identifying these heterostructures is crucial for material preparation and improvement. Currently, there is no single technique that can directly identify and reveal all the features of these interfaces.