Covalent Modification of Black Phosphorus

  • ChemPubSoc Europe Logo
  • Author: Angewandte Chemie International Edition
  • Published Date: 13 August 2017
  • Source / Publisher: Angewandte Chemie International Edition/Wiley-VCH
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
thumbnail image: Covalent Modification of Black Phosphorus

Black phosphorus is a promising semiconductor with possible applications in nanoscale electronic devices. The 2D material has a bandgap, unlike graphene, and a higher electron mobility than silicon. These properties could be tuned by chemically modifying black phosphorus.


Zdeněk Sofer, Institute of Chemical Technology Prague, Czech Republic, Martin Pumera, Nanyang Technological University, Singapore, and colleagues have developed a method to chemically modify layered black phosphorus. Refluxing suspensions of black phosphorus (pre-exfoliated by shear force milling) were treated with nucleophiles, e.g., S-(bromomethyl) ethanethioate, to form covalent P–C and P–O–C bonds (example product pictured). Other functionalization routes were less effective, including those involving radical species, Grignard reagents, and organolithium compounds.


Using ab initio calculations, the team verified that covalent P–C and P–O–C modification has a strong effect on the electronic structure of layered black phosphorus and single-layer phosphorene. These results suggest the 2D material can be tailored for diverse applications in electronics and optoelectronics.


 

Article Views: 813

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

Bookmark and Share

If you would like to reuse any content, in print or online, from ChemistryViews.org, please contact us first for permission. more


CONNECT:

ChemistryViews.org on Facebook

ChemistryViews.org on Twitter ChemistryViews.org on YouTube ChemistryViews.org on LinkedIn Sign up for our free newsletter


A product of ChemPubSoc Europe (16 European Chemical Societies)and Wiley-VCH