Higashi, K., Okamoto, T., Iwaya, N., Sakuda, E., Kay, C. W. M., Ikoma, T., Higashi, M., Kobori, Y. (2025). Vibronic Trimer Design Enhancing Intramolecular Triplet‐Exciton Hopping to Accelerate Triplet‐Triplet Annihilation for Photon Upconversion. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.202503846