The inside back cover of this issue shows some structural characteristics of pyramidal site‐controlled quantum dots grown in a high purity reactor of a new metalorganic vapour phase epitaxy system installed at Tyndall National Institute, Ireland. Relevant details regarding pre and postgrowth processing, formation of the dot structure and photoluminescence properties are reported by Dimastrodonato, Mereni, Young and Pelucchi in their article on pp. 1862–1868.