TY - JOUR
T1 - Near-Infrared-Excited Multicolor Afterglow in Carbon Dots-Based Room-Temperature Afterglow Materials
AU - Zheng, Yihao
AU - Wei, Haopeng
AU - Liang, Ping
AU - Xu, Xiaokai
AU - Zhang, Xingcai
AU - Li, Huihong
AU - Zhang, Chenlu
AU - Hu, Chaofan
AU - Zhang, Xuejie
AU - Lei, Bingfu
AU - Liu, Yingliang
AU - Wong, Wai Yeung
AU - Zhuang, Jianle
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China (51602108, 52073242 and 52172142), the Guangdong Basic and Applied Basic Research Foundation (2020A1515011210), and Science and Technology Planning Project of Guangzhou City (202007020005, 202102080288). W.-Y.W. would also like to thank the Hong Kong Research Grants Council (PolyU 153058/19P), Hong Kong Polytechnic University (1-ZE1C), and the Endowed Professorship in Energy from Ms. Clarea Au (847S) for the financial support. We thank Prof. Zhenguo Chi (Sun Yat-Sen University), Dr. Zhan Yang (Sun Yat-Sen University), Prof. Yixi Zhuang (Xiamen University) and Prof. Yang Li (Guangzhou Medical University) for their assistance in the measurements of the NIR-excited afterglow emission spectra, time-resolved afterglow spectra, and afterglow decay curves.
Funding Information:
This work was supported by the National Natural Science Foundation of China (51602108, 52073242 and 52172142), the Guangdong Basic and Applied Basic Research Foundation (2020A1515011210), and Science and Technology Planning Project of Guangzhou City (202007020005, 202102080288). W.‐Y.W. would also like to thank the Hong Kong Research Grants Council (PolyU 153058/19P), Hong Kong Polytechnic University (1‐ZE1C), and the Endowed Professorship in Energy from Ms. Clarea Au (847S) for the financial support. We thank Prof. Zhenguo Chi (Sun Yat‐Sen University), Dr. Zhan Yang (Sun Yat‐Sen University), Prof. Yixi Zhuang (Xiamen University) and Prof. Yang Li (Guangzhou Medical University) for their assistance in the measurements of the NIR‐excited afterglow emission spectra, time‐resolved afterglow spectra, and afterglow decay curves.
Publisher Copyright:
© 2021 Wiley-VCH GmbH
PY - 2021/10/4
Y1 - 2021/10/4
N2 - Room-temperature afterglow (RTA) materials with long lifetime have shown tremendous application prospects in many fields. However, there is no general design strategy to construct near-infrared (NIR)-excited multicolor RTA materials. Herein, we report a universal approach based on the efficient radiative energy transfer that supports the reabsorption from upconversion materials (UMs) to carbon dots-based RTA materials (CDAMs). Thus, the afterglow emission (blue, cyan, green, and orange) of various CDAMs can be activated by UMs under the NIR continuous-wave laser excitation. The efficient radiative energy transfer ensured the persistent multicolor afterglow up to 7 s, 6 s, 5 s, and 0.5 s by naked eyes, respectively. Given the unusual afterglow properties, we demonstrated preliminary applications in fingerprint recognition and information security. This work provides a new avenue for the activation of NIR-excited afterglow in CDAMs and will greatly expand the applications of RTA materials.
AB - Room-temperature afterglow (RTA) materials with long lifetime have shown tremendous application prospects in many fields. However, there is no general design strategy to construct near-infrared (NIR)-excited multicolor RTA materials. Herein, we report a universal approach based on the efficient radiative energy transfer that supports the reabsorption from upconversion materials (UMs) to carbon dots-based RTA materials (CDAMs). Thus, the afterglow emission (blue, cyan, green, and orange) of various CDAMs can be activated by UMs under the NIR continuous-wave laser excitation. The efficient radiative energy transfer ensured the persistent multicolor afterglow up to 7 s, 6 s, 5 s, and 0.5 s by naked eyes, respectively. Given the unusual afterglow properties, we demonstrated preliminary applications in fingerprint recognition and information security. This work provides a new avenue for the activation of NIR-excited afterglow in CDAMs and will greatly expand the applications of RTA materials.
KW - carbon dots
KW - energy transfer
KW - near-infrared-excited material
KW - room-temperature afterglow
KW - upconversion
UR - https://www.scopus.com/pages/publications/85114477549
U2 - 10.1002/anie.202108696
DO - 10.1002/anie.202108696
M3 - Journal article
C2 - 34390105
AN - SCOPUS:85114477549
SN - 1433-7851
VL - 60
SP - 22253
EP - 22259
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 41
ER -