Aligned CdSe@ZnO flower-rod core-shell nanocable as photovoltaic application

► The CdSe@ZnO flower-rod core-shell nanocable arrays are used as photoanode. ► The photoanode of CdSe@ZnO nanocable exhibits higher photovoltaic performance. ► Ion exchange is a facile method to prepare the CdSe@ZnO nanocable. ► The CdSe-sensitized ZnO nanocables demonstrate a broad EQE in visible spectrum.