Black phosphorus (BP) represents a promising tunable bandgap alternative to graphene and other 2D materials in the field of semiconductors. However, its reactivity toward covalent modification of its surface (as a key to its bandgap adjustment) is scarcely reported. Here a method of covalent modification of BP involving reaction with fluorine is reported. Other allotropes of phosphorus are known to react violently with fluorine resulting in its complete burning down and formation of gaseous phosphorus pentafluoride. The results of our fluorination experiments conducted in analogy to the procedures used for fluorination of graphene indicate a successful binding of fluorine to BP. This route of modification of BP opens new possible ways toward covalent modification of the surface of this promising material.

中文翻译：

---

黑磷的氟化-黑磷会在元素氟中燃烧掉吗？

在半导体领域，黑磷（BP）代表了一种有前途的可调谐带隙替代品，可替代石墨烯和其他2D材料。然而，几乎没有报道其对表面的共价修饰的反应性（作为其带隙调节的关键）。此处报道了涉及与氟反应的BP的共价改性方法。已知磷的其他同素异形体与氟剧烈反应，导致其完全燃烧并形成气态五氟化磷。类似于石墨烯氟化所用程序的氟化实验结果表明，氟与BP成功结合。BP的这种修饰途径为这种有前途的材料表面的共价修饰开辟了新的可能途径。