A session by Dr. Jayeeta Bhattacharya, Associate Professor, Department of Physics, Indian Institute of Technology, Madras as part of Women in Science (WoS):Lecture Series organized by the Department of Physics, St. Paul’s College, Kalamassery. The session was attended by around 100 participants from all over the country. The speaker started from the basics of quantum confinement in semiconductors and about how optical properties can be tailored. The session was received quite well by the audience who interacted with the speaker on various aspects related to the topic.