Insights in Analytical Electrochemistry Open Access

Highly sensitive and high-speed imaging carbon nanomaterials by transient absorption microscopy

9^th Edition of International Conference on Analytical Chemistry

March 26-28, 2018 Vienna, Austria

Chen Yang

Boston University, USA

Posters & Accepted Abstracts: Insights in Analytical Electrochemistry

Abstract:

To achieve producing and characterizing 2D materials at large scale as well as controlling and exploiting unique local properties, we need methods that can quantitatively and rapidly analyze 2D materials with ability to reveal local properties, such as domain boundaries. In this presentation, we report a transient absorption (TA) imaging method for fast visualization, quantitative layer analysis of graphene and mapping of grain boundaries in ambient condition. Specifically, images created based on TA intensity and slow TA decay constant at each pixel both mapped the grain boundaries in graphene with an unprecedented 1,000 frames per second imaging speed. cheyang@bu.edu