TY - JOUR
T1 - Electronic structure of metal-semiconductor nanojunctions in gold CdSe nanodumbbells
AU - Steiner, D.
AU - Mokari, T.
AU - Banin, U.
AU - Millo, O.
PY - 2005/7/29
Y1 - 2005/7/29
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=27144542648&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.95.056805
DO - 10.1103/PhysRevLett.95.056805
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:27144542648
SN - 0031-9007
VL - 95
JO - Physical Review Letters
JF - Physical Review Letters
IS - 5
M1 - 056805
ER -