Electrodeposition of Hybrid Core-Shell Nanowires

摘要

As an environmentally friendly alternative energy conversion device, solar cells are used to convert solar energy into electric current. Demonstration of electrically and optically favorable, fully absorbing, yet ultrathin semiconductor layers for solar cells is a key scientific challenge.1"4 For example, designing nanowires with a core-shell type semiconductor segment can improve the carrier collection with radial charge separation, whereas integration of plasmonic nanostructures can enhance the photocurrent generation with intensified electric fields.1,4"7 However, a full understanding of the mechanisms behind the electrical and optical enhancement processes is still under debate due to a lack of control over the geometry during the synthesis of nanostructured semiconductor segments and lack of precise integration of the plasmonic structures.