Electrochemical transformation of black phosphorous to phosphorene quantum dots: effect of nitrogen doping

Abstract

We present a comparative analysis of the structural and optical properties of electrosynthesized PQDs, a new class of size-tunable luminescent materials and their nitrogen doped counter parts(NPQDs). Nitrogen doping onto phopshorene lattice could be realized in situ at room temperature using either nitrogen containing electrolyte and/or supporting electrolyte in the solution. An increased quantum efficiency as well as redox behavior has been observed for PQDs upon nitrogen doping and a critical analysis of the effect of nitrogen on the structural, optical and electrochemical properties of PQDs suggests several potential benefits of applications ranging from electrocatalysts and molecular electronics to different types of sensors and bioimaging.

Chemical Functionalization of 2D Black Phosphorus toward Its Applications in Energy Devices and Catalysis: A Review

“…Valappil et al in their work developed an electrochemical method of single‐step BP doping. [ 119 ] It was shown that electrochemical exfoliation of BP at high cathodic potentials (−2 V) in the presence of Bu 4 NBF 4 in MeCN leads to the formation of N‐doped BPQDs.…”