Carrier multiplication in van der Waals layered transition metal dichalcogenides

Ji-Hee Kim; Matthew R. Bergren; Jin Cheol Park; Subash Adhikari; Michael Lorke; Thomas Frauenheim; Duk-Hyun Choe; Beom Kim; Hyunyong Choi; Tom Gregorkiewicz; Young Hee Lee

doi:10.1038/s41467-019-13325-9

Nature Communications (Dec 2019)

Carrier multiplication in van der Waals layered transition metal dichalcogenides

Ji-Hee Kim,
Matthew R. Bergren,
Jin Cheol Park,
Subash Adhikari,
Michael Lorke,
Thomas Frauenheim,
Duk-Hyun Choe,
Beom Kim,
Hyunyong Choi,
Tom Gregorkiewicz,
Young Hee Lee

Affiliations

Ji-Hee Kim: IBS Center for Integrated Nanostructure Physics (CINAP), Institute for Basic Science
Matthew R. Bergren: IBS Center for Integrated Nanostructure Physics (CINAP), Institute for Basic Science
Jin Cheol Park: IBS Center for Integrated Nanostructure Physics (CINAP), Institute for Basic Science
Subash Adhikari: IBS Center for Integrated Nanostructure Physics (CINAP), Institute for Basic Science
Michael Lorke: Institut fur Theoretishe Physik, Universitat Bremen
Thomas Frauenheim: Bremen Center for Computational Materials Science, Institut fur Theoretische Physik, Universitat Bremen
Duk-Hyun Choe: Inorganic Materials Lab, Samsung Advanced Institute of Technology (SAIT)
Beom Kim: School of Electrical and Electronic Engineering, Yonsei University
Hyunyong Choi: Department of Physics and Astronomy, Seoul National University
Tom Gregorkiewicz: Van der Waals-Zeeman Institute, University of Amsterdam
Young Hee Lee: IBS Center for Integrated Nanostructure Physics (CINAP), Institute for Basic Science

DOI: https://doi.org/10.1038/s41467-019-13325-9
Journal volume & issue: Vol. 10, no. 1
pp. 1 – 9

Abstract

Read online

During carrier multiplication, high-energy free carriers in a given material relax by generation of additional electron-hole pairs. Here, the authors report evidence of carrier multiplication in multilayer MoTe2 and WSe2 films with up to 99% conversation efficiency.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

About the journal