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Keywords:

  • patterning;
  • core/shell structures;
  • photoinduced electron transfer;
  • poly(viologen);
  • layer-by-layer films
Thumbnail image of graphical abstract

Poly(viologen) quenches the photoluminescence of CdSe quantum dots via a charge transfer as shown by E. A. Weiss and co-workers on page 3617. Continuous illumination of a composite film of quantum dots and poly(viologen) through a mask, or by a scanning laser beam, reveals diffractionlimited patterns of photoluminescence in the film by degrading the quenching viologen in its cation radical form.