Polaritonic chemistry has been emerging as a powerful and fundamental paradigm in materials science, offering unconventional ways to manipulate molecular and material properties by engineering light–matter interactions. By hybridizing molecular excitations with confined electromagnetic fields to form polaritonic states, this approach enables direct modulation of energy landscapes, bond strengths, and transition pathways in materials without altering their chemical composition. Consequently, polaritonic chemistry provides a transformative route for engineering functional materials from the “outside”, paving the way for innovative device concepts and reaction technologies rooted in quantum light–matter interactions. In this Spotlight, we highlight our recent efforts demonstrating cavity-enabled control over electronic, magnetic, and thermal properties, underscoring the expanding scope and potential of this emerging field.
Seidel et al. (Fri,) studied this question.