Stress-coupled spin state switching in a spin crossover composite modulates current in an organic semiconductor.

ABSTRACT: The combination of spin-crossover (SCO) complexes with electrically conducting materials offers a promising route for developing stimuli-responsive electronics, yet the mechanism of charge transport modulation remains unexplored. Here, we investigate a bilayer heterostructure comprising silica-coated SCO nanoparticles [Fe(Htrz)₂(trz)](BF₄)@SiO₂ within a polyvinylpyrrolidone (PVP) matrix and organic semiconductors (OSCs), where mechanical stress generated by spin-state switching within the PVP:SCO layer modulates the conductance within the OSC layer. Through in situ piezo-resistivity characterization, we reveal a reversible conductance modulation in the OSC layer under hydrostatic pressure, providing a quantitative evaluation of pressure-induced stres

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC12368574 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature