Quantum mechanical single-gold-nanocluster electroluminescent light source at room temperature

Jose I. Gonzalez, Tae Hee Lee, Michael D. Barnes, Yasuko Antoku, Robert M. Dickson

Research output: Contribution to journalArticlepeer-review

69 Scopus citations


The robust, nonclassical electroluminescence was analyzed at room temperature from spatially isolated Au nanoclusters within easily fabricated dc-generated nanoscale break junctions. It was found that the electrically contacted, spatially isolated gold nanoclusters exhibit clear photon antibunching in their strong, near-infrared electroluminescence. Simultaneous emission of two or more photons was forbidden for spatially isolated single quantum systems. The results demonstrated the single quantum nature of several-atom gold molecules and suggested their use as room-temperature electrically driven single-photon sources.

Original languageEnglish (US)
Article number147402
Pages (from-to)147402-1-147402-4
JournalPhysical review letters
Issue number14
StatePublished - Oct 1 2004

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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