A study of the formation and embedding of perylene nanocrystals

This paper reports parameters germane to growing and controlling the size o f perylene nanocrystals, as well as to embedding these nanocrystals in suit able media. The perylene nanocrystals obtained in this study were of the a form and produced J-aggregates having a stacking angle about 40.7 degrees. Investigation of the spectral properties of these nanocrystals revealed a s ize-dependent blue shift in their absorption spectra, which makes them pote ntially useful in optics. (C) 2001 Elsevier Science Ltd. All rights reserve d.