Synthesis and Optical Properties of PbSe Nanorods with Controlled Diameter and Length.
The synthesis of PbSe nanorods with low branching (<1%), high aspect ratios (up to ∼16), and controlled lengths and diameters was demonstrated via the removal of water and oleic acid from the synthesis precursors. It was determined that the proper combination of reaction time and temperature allows for the control of PbSe nanorod length and diameter and therefore control over their electronic states, as probed through absorbance and photoluminescence measurements. Similar to PbSe nanowires, nanorods display higher Stokes shifts than for spherical nanocrystals due to intrananorod diameter fluctuations.
U.S. Naval Research Laboratory , 4555 Overlook Avenue, SW, Washington, DC 20375, United States.
Diogenes
D
Placencia
U.S. Naval Research Laboratory , 4555 Overlook Avenue, SW, Washington, DC 20375, United States.
Janice E
JE
Boercker
Naval Surface Warfare Center, Indian Head Explosive Ordinance Disposal Technology Division , 2008 Stump Neck Road, Indian Head, Maryland 20640, United States.
Edward E
EE
Foos
U.S. Naval Research Laboratory , 4555 Overlook Avenue, SW, Washington, DC 20375, United States.
Joseph G
JG
Tischler
D007854:Lead / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D043942:Nanotubes; D018036:Selenium Compounds / Q000737:chemistry*
D018036:Selenium Compounds; C088065:lead selenide; D007854:Lead