Two-dimensional (2D) semiconductors are emerging as a versatile platform for nanophotonics, offering unprecedented tunability in optical properties through exciton resonance engineering, van der Waals heterostructuring, and external field control. These materials enable active optical modulation, single-photon emission, quantum photonics, and valleytronic functionalities, paving the way for next-generation optoelectronic and quantum photonic devices. However, key challenges remain in achieving large-area integration, maintaining excitonic coherence, and optimizing amplitude-phase modulation for efficient light manipulation. Advances in fabrication, strain engineering, and computational modeling will be crucial to overcoming these limitations. This Perspective highlights recent progress in 2D semiconductor-based nanophotonics, emphasizing opportunities for scalable integration into photonics.

Springer Science
doi.org/10.1038/s44310-025-00092-3
npj Nanophoton.
Resonant Nanophotonics

Azimi, A., Barrier, J., Barreda, A. I., Bauer, T., Bouzari, F., Brokkelkamp, A., Buatier de Mongeot, F., Parsons, T., Christianen, P., Conesa-Boj, S., Curto, A., Das, S., Dias, B., Epstein, I., Fedorova, Z., García de Abajo, J., Goykhman, I., Greten, L., Grönqvist, J., … Zambrana-Puyalto, X. (2025). Photonics in Flatland: challenges and opportunities for nanophotonics with 2D semiconductors. Npj Nanophoton., 2(1), 44: 1–20.https://doi.org/10.1038/s44310-025-00092-3