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.