. 2019 Apr 5;11:32. doi: 10.1007/s40820-019-0263-3
© The Author(s) 2019
Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Fig. 2.
Fluorescence emission spectra of MSNs–CDs under diverse excitation wavelengths