Ln-HOF Nanofiber Organogels with Time-Resolved Luminescence for Programmable and Reliable Encryption
writer：Xiaoyan Qiu, Xin Yang, Quanquan Guo, Jize Liu,* and Xinxing Zhang*
keywords：hydrogen-bonded organic framework, programmable encryption, time-resolved luminescence, lanthanum coordination
source：期刊
Issue time：2023年
Developing tunable luminescent materials for high
throughput information storage is highly desired following the
explosive growth of global data. Although considerable success has
been achieved, achieving programmable information encryption
remains challenging due to current signal crosstalk problems. Here,
we developed long-lived room-temperature phosphorescent organo-
gels enabled by lanthanum-coordinated hydrogen-bonded organic
framework nanofibers for time-resolved information programming.
Via modulating coassembled lanthanum concentration and Fo?rster
resonance energy transfer efficiency, the lifetimes are prolonged and
facilely manipulated (20?644 ms), realizing encoding space
enlargement and multichannel data outputs. The aggregated strong
interfacial supramolecular bonding endows organogels with
excellent mechanical toughness (36.16 MJ m?2) and self-healing properties (95.7%), synergistically achieving photostability
(97.6% lifetime retention in 10000 fatigue cycles) via suppressing nonradiative decays. This work presents a lifetime-gated
information programmable strategy via lanthanum-coordination regulation that promisingly breaks through limitations of current
responsive luminescent materials, opening unprecedented avenues for high-level information encryption and protection.