Then and Now Size-Controlled Colors Karen Kwon and Alessia Kirkland Since their first synthesis in the 1980s, quantum dots—small yet bright semiconductor nanocrystals—have illuminated various fields of science. Log in or become a member to view the full text of this article. This article may be available for purchase via the search at Optica Publishing Group. Optica Members get the full text of Optics & Photonics News, plus a variety of other member benefits. Publish Date: 01 January 2022 Add a Comment Please enable JavaScript to view the comments powered by Disqus.