Tuning Band Offsets of Core/Shell CdS/CdTe Nanocrystals

Steplike electronic band potentials (band offsets) in core/shell CdS/CdTe nanocrystals (see picture, ML=monolayer) can be tuned between quasi-type-II and type-I regimes by controlling the CdTe shell thickness. The nanocrystals are characterized by transmission electron microscopy, elemental analysis, and optical measurements. These heterostructured nanocrystals show efficient quasi-type-II emission profiles, useful for lightelectron conversion technologies. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.