Quantum mechanical single-gold-nanocluster electroluminescent light source at room temperature.
Electrically contacted gold-nanocluster arrays formed within electromigration-induced break junctions exhibit bright, field-dependent electroluminescence in the near infrared (650-800 nm). Intensity autocorrelation of spatially isolated individual nanocluster emission driven at high electrical frequency (f(ac)= approximately 200 MHz) reveals antibunched electroluminescence at room temperature. These results demonstrate the single quantum nature of several-atom gold molecules and suggest their use as room-temperature electrically driven single-photon sources.
Gonzalez
Jose I
JI
School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, USA.
Lee
Tae-Hee
TH
Barnes
Michael D
MD
Antoku
Yasuko
Y
Dickson
Robert M
RM