Photon upconversion: from two-photon absorption (TPA) to triplet-triplet annihilation (TTA)

Changqing Ye1, Liwei Zhou1, Xiaomei Wang1

  • 1Jiangsu Key Laboratory for Environmental Functional Materials, Research Center for Green Printing Nanophotonic Materials, Institute of Chemistry, Biology and Materials Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China. wangxiaomei@mail.usts.edu.cn.

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