Acoustically-Driven Trion & Exciton Modulation in Piezoelectric 2D MoS2

Brant Gibson Low Res4 January 2016:

CNBP’s A/Prof. Brant Gibson (CNBP CI) and Dr. Desmond Lau (CNBP Technical Officer) featured as co-authors in a recently published paper in the journal ‘Nano Letters’.

The paper exploited the recent discovery of the piezoelectricity in odd-numbered layers of two-dimensional molybdenum disulfide (MoS2), to show the possibility of reversibly tuning the photoluminescence of single and odd-numbered multilayered MoS2 using high frequency sound wave coupling.

As such, the work reveals several key fundamentals governing acousto-optic properties of odd-layered MoS2 that can be implemented in future optical and electronic systems.

Additional information can be found in the Journal ‘Nano Letters’ online.