Epitaxy 2 (IMAGE) Rice University Caption An illustration shows several arrangements of rhenium diselenide and molybdenum diselenide, which form a razor-sharp junction where they meet in a new transition metal dichalcogenide created at Rice University. The material is scalable and its band gap tunable for optoelectronics. Credit Ajayan Research Group/Rice University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.