Enhanced Photoresponse from Phosphorene-Phosphorene-Suboxide Junction Fashioned by Focused Laser Micromachining

Junpeng Lu; Alexandra Carvalho; Jing Wu; Hongwei Liu; Eng Soon Tok; Antonio H Castro Neto; Barbaros Özyilmaz; Chorng Haur Sow

doi:10.1002/adma.201506201

Enhanced Photoresponse from Phosphorene-Phosphorene-Suboxide Junction Fashioned by Focused Laser Micromachining

Adv Mater. 2016 Jun;28(21):4090-6. doi: 10.1002/adma.201506201. Epub 2016 Mar 29.

Authors

Junpeng Lu^{1

2}, Alexandra Carvalho², Jing Wu¹, Hongwei Liu³, Eng Soon Tok¹, Antonio H Castro Neto^{1

2}, Barbaros Özyilmaz^{1

2}, Chorng Haur Sow^{1

2}

Affiliations

¹ Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore, 117542, Singapore.
² Center For Advanced 2D Materials and Graphene Research Center, National University of Singapore, 6 Science Drive 2, Singapore, 117546, Singapore.
³ Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way. Innovis, #08-03, Singapore, 138634, Singapore.

PMID: 27028659
DOI: 10.1002/adma.201506201

Abstract

Enhanced photoresponse is obtained from phosphorene-phosphorene-suboxide. A scanning focused laser beam is employed as a straightforward approach to convert part of a phosphorene film into phosphorene suboxide, creating a functional junction in situ on an optoelectronic device based on phosphorene. As a result, the photoelectrical properties of the optoelectronic device are significantly improved.

Keywords: 2D materials; lasers; optoelectronic; phosphorene; phosphorene oxide.