Large-scale preparation of ultra-long ZnSe-PbSe heterojunction nanowires for flexible broadband photodetectors

Flexible photodetectors show great applications in wearable electronics such as health monitoring and the Internet of Things. In this study, we have prepared ultralong ZnSeePbSe heterojunction nanowires with a length of 20 mm in gram-scale by an in-situ cation exchange reaction.