Photo-Excitation at Molecular Scale

Zhang 2015 image
Image: Haigang Zhang, at Argonne National Lab, image courtesy of Ozgun Suzer, HGST,
a Western Digital Company, San Jose

Illustration of nano-junction formed by a single molecule, a STM tip and a metal substrate. Laser is shining onto the junction and can excite charge transfer within the single molecule. Understanding the photo-excitation process at the single molecular scale is crucial to the development of various nanoscale opto-electronic and photovoltaic applications.

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