Single dye molecules in an oxygen-depleted environment as photostable organic triggered single-photon sources

Lill, Y.; Hecht, B.
March 2004
Applied Physics Letters;3/8/2004, Vol. 84 Issue 10, p1665
Academic Journal
We demonstrate, that under nitrogen atmosphere, 20% of single DiIC[sub 18](3) (1,1′-dioctadecyl-3,3,3′,3′-tetramethylindocarbocyanine perchlorate) molecules in poly(methylmethacrylate) show an extremely low photobleaching quantum yield of (4.66±0.07)×10[sup -8] together with a reasonably short triplet lifetime. We exploit these properties to demonstrate that the system can be used to produce a triggered single-photon source based exclusively on organic materials. © 2004 American Institute of Physics.


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