Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Cui Wang and Florian Reichenauer and Winald R. Kitzmann and Christoph Kerzig and Katja Heinze and Ute Resch‐Genger,Efficient Triplet‐Triplet Annihilation Upconversion Sensitized by a Chromium(III) Complex via an Underexplored Energy Transfer Mechanism,Angewandte Chemie,0044-8249,Wiley,2022-05-09,134,27,,https://cir.nii.ac.jp/crid/1360299152526263552,https://doi.org/10.1002/ange.202202238