Photodetectors
The cover image describes the design of three‐electrode photo‐electrochemical photodetectors based on lanthanide‐doped carbon quantum dots (CQDs). Owing to the coordination of lanthanides and internal energy transfer between lanthanides and CQDs, the as‐fabricated photodetectors not only show an excellent photo‐response performance, but also exhibit a narrow‐band response behavior. More information can be found in article number 2105683 by Lingfeng Gao, Hans Ågren, Han Zhang, and co‐workers.