Related Experiment Video
Updated: Feb 13, 2026

Preparation of Liquid-exfoliated Transition Metal Dichalcogenide Nanosheets with Controlled Size and Thickness: A State of the Art Protocol
Published on: December 20, 2016
Controlled doping of transition metal dichalcogenides by metal work function tuning in phthalocyanine compounds
Christopher J Benjamin1, Suki Zhang, Zhihong Chen
1Purdue University, Department of Electrical Engineering, 1205 East State Street, West Lafayette, IN - 47906, USA. zhchen@purdue.edu.
Abstract:
We explored surface charge transfer interaction between a family of phthalocyanine (Pc) compounds and transition metal dichalcogenides (TMDs). Comparing the device characteristics of TMD field-effect transistors (FETs), we demonstrate both p-type and n-type doping of TMDs by tuning the work function of the metal substitution in the Pc compound. Our findings suggest a near linear correlation between the metal work function and doping level. Such doping predictability has yet to be achieved whereas we provide here the first report of its kind.
More Related Videos
Related Concept Videos
Properties of Transition Metals
Bonding in Metals
Metallic Solids
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
Alkali Metals
Table 1: Properties of the alkali metals
Metal-Ligand Bonds
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
Theory of Metallic Conduction
In this theory, Newton's second law of motion is used to determine the acceleration of an electron in the presence of an applied electric field. Then, its velocity is expressed via this acceleration.
An electron moves through the crystal, containing positive ions,...

