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arXiv · 2401.06359

Time-resolved force microscopy using delay-time modulation method

Hiroyuki Mogi·Rin Wakabayashi·Shoji Yoshida·Yusuke Arashida·Atsushi Taninaka·Katsuya Iwaya·Takeshi Miura·Osamu Takeuchi·Hidemi Shigekawa
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Abstract

We developed a time-resolved force microscopy technique by integrating atomic force microscopy using a tuning-fork-type cantilever with the delay time modulation method for optical pump-probe light. We successfully measured the dynamics of surface recombination and diffusion of photoexcited carriers in bulk WSe2, which is challenging owing to the effect of tunneling current in time-resolved scanning tunneling microscopy. The obtained results were comprehensively explained with the model based on the dipole-dipole interaction induced by photo illumination.

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Hiroyuki Mogi, Rin Wakabayashi, Shoji Yoshida, Yusuke Arashida, Atsushi Taninaka, Katsuya Iwaya, Takeshi Miura, Osamu Takeuchi, Hidemi Shigekawa. 2024-01-12. Time-resolved force microscopy using delay-time modulation method. https://doi.org/10.35848/1882-0786%2Fad0c04

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