Black Phosphorus (IMAGE) McGill University Caption This is a schematic of the "puckered honeycomb" crystal structure of black phosphorus. Credit Vahid Tayari/McGill University Usage Restrictions One-time use only. 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.