Issue 43, 2024

Conductance fluctuations in cobalt valence tautomer molecular thin films

Abstract

The conductivity changes associated with optical excitations and changing temperature in cobalt valence tautomer molecular thin films were investigated. Conductance switching in the presence of illumination is observed, with occasional locking in a higher conductance state, depending on the temperature, the photon energy of the illumination, and the bias voltage. Light of sufficiently short wavelengths is needed to ensure the light enhanced conductance switching, consistent with the optical absorption, but bias voltage clearly plays a role as well. The conductance switching is associated with excitations to the ligand to metal charge transfer state.

Graphical abstract: Conductance fluctuations in cobalt valence tautomer molecular thin films

Supplementary files

Article information

Article type
Paper
Submitted
03 Aug 2024
Accepted
08 Oct 2024
First published
10 Oct 2024

Dalton Trans., 2024,53, 17571-17580

Conductance fluctuations in cobalt valence tautomer molecular thin films

J. P. Phillips, S. Yazdani, J. Soruco, J. Oles, T. K. Ekanyaka, E. Mishra, P. Wang, M. Zaid Zaz, J. Liu, A. T. N'Diaye, M. Shatruk, P. A. Dowben and R. Cheng, Dalton Trans., 2024, 53, 17571 DOI: 10.1039/D4DT02213K

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