Electronic structure of metal-semiconductor nanojunctions in gold CdSe nanodumbbells

D. Steiner*, T. Mokari, U. Banin, O. Millo

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

102 Scopus citations


The electronic properties of metal-semiconductor nanojunctions are investigated by scanning tunneling spectroscopy of gold-tipped CdSe rods. A gap similar to that in bare CdSe nanorods is observed near the nanodumbbell center, while subgap structure emerges near the metal-semiconductor nanocontact. This behavior is attributed to the formation of subgap interface states that vanish rapidly towards the center of the rod, consistent with theoretical predictions. These states lead also to modified Coulomb staircase, and in some cases to negative differential conductance, on the gold tips.

Original languageAmerican English
Article number056805
JournalPhysical Review Letters
Issue number5
StatePublished - 29 Jul 2005


Dive into the research topics of 'Electronic structure of metal-semiconductor nanojunctions in gold CdSe nanodumbbells'. Together they form a unique fingerprint.

Cite this