Noncovalent Functionalization of Black Phosphorus

TL;DR

This paper reports the first non-covalent functionalization of black phosphorus using organic molecules, which modifies its electronic properties and enhances its stability against oxidation.

Contribution

It introduces a novel non-covalent functionalization method for black phosphorus, demonstrating electron transfer and stabilization effects with specific organic molecules.

Findings

Electron transfer from BP to TCNQ observed.

Perylene diimide stabilizes BP against oxygen degradation.

Non-covalent interactions modify BP properties.

Abstract

The first non-covalent functionalization of black phosphorus (BP) is presented. The treatment of BP with electron- withdrawing 7,7,8,8-tetracyano-p-quinodimethane (TCNQ) leads to electron transfer from BP to the organic dopant. On the other hand, the non-covalent interaction of BP with perylene diimide is mainly due to van-der-Waals interactions but also leads to a considerable stabilization of the BP flakes against oxygen degradation.