Andrew (Andy) Greenspon

Andrew (Andy) Greenspon

Andrew (Andy) Greenspon

Graduate Student
Optical Propreties of 2D Transition Metal Dichalcogenides
Characterization of Lanthanide Emitters in Soft Materials
9 Oxford St., Room 226, Cambridge, MA 02138
p: 617-496-3060


B.A. Physics
Amherst College, 2011

S.M. Applied Physics
Harvard University 2015


I am studying the optical properties of the 2D transition metal dichalcogenide molybdenum disulfide (MoS2). I am 1) developing way of incorporating light-emitting defects into MoS2, and 2) studying defects inherent in CVD grown MoS2 to enhance exciton luminescence.

I am also studying the emission properties of lanthanide emitters incorporated into varying environments for possible applications such as waveguides, optical cavities, and sensors. Currently, I bind lanthanide ions to organic ligands to form a chelated complex to provide a uniform chemical environment for the lanthanide. I then use polyelectrolyte multilayers as a binding matrix for controlling the number and location of complexed lanthanide emitters on a surface. I am studying the optical stability of the lanthanides in this environment and am characterizing the structure of these layers.