A series of symmetric ZnSen/CdSen superlattices (n=2–6, where n is the number of monolayers) was prepared by a novel growth method, the self‐limiting monolayer epitaxy. For n≤3, the low temperature photoluminescence spectra of these superlattices are dominated by near‐band‐gap emission with full widths at half maximum (FWHM) of 17 meV. For longer periods the photoluminescence intensity drops drastically and the FWHM increases by a factor of 2 which is attributed to the formation of misfit dislocations. The energetic positions of the photoluminescence peaks are in good agreement with transition energy calculations based on a Kronig–Penney‐type model.

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