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dc.contributor.authorPhua, Fiona Soo Zengen
dc.contributor.authorSu, Yanen
dc.contributor.authorLi, Youbingen
dc.contributor.authorZhou, Xianjuen
dc.contributor.authorJana, Deblinen
dc.contributor.authorLiu, Guofengen
dc.contributor.authorLim, Wei Qien
dc.contributor.authorOng, Wee Kongen
dc.contributor.authorYang, Chaolongen
dc.contributor.authorZhao, Yanlien
dc.identifier.citationSu, 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-.en
dc.description.abstractUltralong 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.en
dc.description.sponsorshipASTAR (Agency for Sci., Tech. and Research, S’pore)en
dc.format.extent11 p.en
dc.relation.ispartofseriesScience Advancesen
dc.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.en
dc.subjectUltralong Room Temperature Phosphorescence (URTP)en
dc.subjectAmorphous Organic Moleculesen
dc.titleUltralong room temperature phosphorescence from amorphous organic materials toward confidential information encryption and decryptionen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen
dc.description.versionPublished versionen
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