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https://hdl.handle.net/10356/85457
Title: | Ultralong room temperature phosphorescence from amorphous organic materials toward confidential information encryption and decryption | Authors: | Phua, Fiona Soo Zeng Su, Yan Li, Youbing Zhou, Xianju Jana, Deblin Liu, Guofeng Lim, Wei Qi Ong, Wee Kong Yang, Chaolong Zhao, Yanli |
Keywords: | Ultralong Room Temperature Phosphorescence (URTP) Amorphous Organic Molecules |
Issue Date: | 2018 | Source: | Su, Y., Phua, F. S. Z., Li, Y., Zhou, X., Jana, D., Liu, G., et al. (2018). Ultralong room temperature phosphorescence from amorphous organic materials toward confidential information encryption and decryption. Science Advances, 4(5), eaas9732-. | Series/Report no.: | Science Advances | Abstract: | Ultralong room temperature phosphorescence (URTP) emitted from pure amorphous organic molecules is very rare. Although a few crystalline organic molecules could realize URTP with long lifetimes (>100 ms), practical applications of these crystalline organic phosphors are still challenging because the formation and maintenance of high-quality crystals are very difficult and complicated. Herein, we present a rational design for minimizing the vibrational dissipation of pure amorphous organic molecules to achieve URTP. By using this strategy, a series of URTP films with long lifetimes and high phosphorescent quantum yields (up to 0.75 s and 11.23%, respectively) were obtained from amorphous organic phosphors without visible fluorescence and phosphorescence under ambient conditions. On the basis of the unique features of URTP films, a new green screen printing technology without using any ink was developed toward confidential information encryption and decryption. This work presents a breakthrough strategy in applying amorphous organic materials for URTP. | URI: | https://hdl.handle.net/10356/85457 http://hdl.handle.net/10220/45162 |
DOI: | 10.1126/sciadv.aas9732 | Schools: | School of Physical and Mathematical Sciences | Rights: | © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license, which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | SPMS Journal Articles |
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Ultralong room temperature phosphorescence from amorphous organic materials toward confidential information encryption and decryption.pdf | 2.36 MB | Adobe PDF | View/Open |
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