Exciton Brightening in Monolayer Phosphorene via Dimensionality Modification

Renjing Xu; Jiong Yang; Ye Win Myint; Jiajie Pei; Han Yan; Fan Wang; Yuerui Lu

doi:10.1002/adma.201505998

Exciton Brightening in Monolayer Phosphorene via Dimensionality Modification

Adv Mater. 2016 May;28(18):3493-8. doi: 10.1002/adma.201505998. Epub 2016 Mar 16.

Authors

Renjing Xu¹, Jiong Yang¹, Ye Win Myint¹, Jiajie Pei^{1

2}, Han Yan¹, Fan Wang³, Yuerui Lu¹

Affiliations

¹ Research School of Engineering, College of Engineering and Computer Science, The Australian National University, Canberra, ACT, 2601, Australia.
² School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China.
³ ARC Centre for Nanoscale BioPhotonics (CNBP), Department of Physics and Astronomy Faculty of Science, Macquarie University, Sydney, NSW, 2109, Australia.

PMID: 26990082
DOI: 10.1002/adma.201505998

Abstract

Exciton brightening in monolayer phosphorene is achieved via the dimensionality modification of excitons from quasi-1D to 0D. The luminescence quantum yield of 0D-like excitons is >33.6 times larger than that of quasi-1D free excitons. 2D phosphorene with quasi-1D free excitons and 0D-like excitons provides a unique platform to investigate the fundamental phenomena in the ideal 2D-1D-0D hybrid system.

Keywords: localized excitons; monolayers; phosphorene, photoluminescence; quantum yield.

Publication types

Research Support, Non-U.S. Gov't