Silver flashes red, yellow, and green
Tiny grains of silver glow in different colors depending on their size.
References:
Emory, S.R., W.E. Haskins, and S. Nie. 1998. Direct observation of size-dependent optical enhancement in single metal nanoparticles. Journal of the American Chemical Society 120(Aug. 12):8009.
Further Readings:
Nie, S., and S.R. Emory. 1997. Probing single molecules and single nanoparticles by surface-enhanced Raman scattering. Science 275(Feb. 21):1102.
Sources:
Shuming Nie
Indiana University
Department of Chemistry
Bloomington, IN 47405
From Science News, Vol. 154, No. 14, October 3, 1998,
p. 216.
Copyright Ó 1998 by Science Service.
10/3/98
copyright 1998 ScienceService