The 4th International Nanotechnology Workshop was organized by the department of physics education at TIU. It was performed as planned on Monday 28th December 2020 in two sessions. The participants joined the workshop through the zoom link, which was published before on the website of the department of physics education. A detailed workshop program and an abstract book of the presentations were also provided on the webpage.   The program started with the promotional video of Tishk International University. Then the head of the board of trustees of Tishk International University, Dr. Idris Hadi, gave an introduction speech. After a brief [...]