TY - JOUR
T1 - Size-Dependent Tunneling and Optical Spectroscopy of CdSe Quantum Rods
AU - Katz, David
AU - Wizansky, Tommer
AU - Millo, Oded
AU - Rothenberg, Eli
AU - Mokari, Taleb
AU - Banin, Uri
N1 - Funding Information:
This work was supported in part by the U.S.-Israel Binational Foundation, by the DIP Foundation, and by the Israel Science Foundation, Grants No. 99/00-12.5 and No. 8001/00-1.
PY - 2002
Y1 - 2002
N2 - Photoluminescence excitation spectroscopy and scanning-tunneling spectroscopy are used to study the electronic states in CdSe quantum rods that manifest a transition from a zero-dimensional to a one-dimensional quantum-confined structure. Both optical and tunneling spectra show that the level structure depends primarily on the diameter of the rod and not its length. With increasing diameter, the band gap and the excited state level spacings shift to the red. The level structure was assigned using a multiband effective-mass model, showing a similar dependence on rod dimensions.
AB - Photoluminescence excitation spectroscopy and scanning-tunneling spectroscopy are used to study the electronic states in CdSe quantum rods that manifest a transition from a zero-dimensional to a one-dimensional quantum-confined structure. Both optical and tunneling spectra show that the level structure depends primarily on the diameter of the rod and not its length. With increasing diameter, the band gap and the excited state level spacings shift to the red. The level structure was assigned using a multiband effective-mass model, showing a similar dependence on rod dimensions.
UR - http://www.scopus.com/inward/record.url?scp=4143077489&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.89.086801
DO - 10.1103/PhysRevLett.89.086801
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C2 - 12190490
AN - SCOPUS:4143077489
SN - 0031-9007
VL - 89
JO - Physical Review Letters
JF - Physical Review Letters
IS - 8
ER -