(α-NaYbF4:Tm3+)/CaF2 Core/Shell Nanoparticles with Efficient Near-Infrared to Near-Infrared Upconversion for High-Contrast Deep Tissue Bioimaging

Guanying Chen, Jie Shen, Tymish Y. Ohulchanskyy, Nayan J. Patel, Artem Kutikov, Zhipeng Li, Jie Song, Ravindra K. Pandey, Hans Ågren, Paras N. Prasad and Gang Han

ACS Nano

DOI: 10.1021/nn302972r

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