Photocurrent vibrationally promoted electronic resonance spectroscopy for probing vibronic interactions in optoelectronic materials

Dmitrii R. Maslennikov; Nathaniel P. Gallop; Katelyn P. Goetz; Yana Vaynzof; Artem A. Bakulin

doi:10.1117/12.2594360

1 August 2021 Photocurrent vibrationally promoted electronic resonance spectroscopy for probing vibronic interactions in optoelectronic materials

Dmitrii R. Maslennikov, Nathaniel P. Gallop, Katelyn P. Goetz, Yana Vaynzof, Artem A. Bakulin

Author Affiliations +

Proceedings Volume 11799, Physical Chemistry of Semiconductor Materials and Interfaces XX; 117990R (2021) https://doi.org/10.1117/12.2594360
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Abstract

Recently, interactions between electronic and vibrational processes have been proposed to control various phenomena in a wide range of optoelectronic materials. Supposedly, these vibronic interactions may play the key role in physics of semiconducting materials for flexible soft photovoltaics by influencing optical, electrical, and other photovoltaic properties. Yet, their exact role in performance of real functional photovoltaic devices remains unclear, because of the current limitations of experimental and computational techniques. Here we develop a new method for studying vibronic interactions in functional optoelectronic materials based on the state-of-art combination of ultrafast spectroscopies and photocurrent detection techniques — photocurrent vibrationally promoted electronic resonance (photocurrent VIPER). The applicability of this technique is demonstrated by revealing the coupling of certain organic cation modes and inorganic lattice distortion in FaPbBr3 perovskite.

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Citation Download Citation

Dmitrii R. Maslennikov, Nathaniel P. Gallop, Katelyn P. Goetz, Yana Vaynzof, and Artem A. Bakulin "Photocurrent vibrationally promoted electronic resonance spectroscopy for probing vibronic interactions in optoelectronic materials", Proc. SPIE 11799, Physical Chemistry of Semiconductor Materials and Interfaces XX, 117990R (1 August 2021); https://doi.org/10.1117/12.2594360

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