1+1>2: Fiber Synergy in Aggregation‐Induced Emission

Abstract

Mesoscopic aggregate is important to transfer or even amplify the molecular information in macroscopic materials. As an important branch of aggregate science, aggregation‐induced emissive luminogens (AIEgens) often show slight or even no emission in solutions but exhibit bright emission when they aggregate, which open a new avenue for the practical applications. Due to the flexible and rotor structure of AIEgens, the aggregate structure of AIEgens is highly sensitive to the surrounding microenvironment, resulting in adjustable optical properties. Fibers integrated of a multiplicity of functional components are ideal carriers to control the aggregation processes, further assembly of fibers produces large‐scale fabrics with amplified functions and practical values. In this Concept article, we focus on the latest advances on the synergy between “AIE+Fiber” for the boosted performance that beyond AIE, and their applications are presented and abstracted out to stimulate new ideas for developing “AIE+Fiber” systems.

Tailored Broad‐Spectrum Emission in Hybrid Aggregation Induced Emission (AIE)‐MOFs: Boosting White Light Efficiency in Electrospun Janus Microfibers

“…The methodology surpasses the constraints of traditional systems such as phosphor-converted (light emitting diodes) LEDs, multi-chip systems, (organic-LEDs) OLEDs, and (quantum dot-LEDs) QLEDs. [28] At the heart of this innovation is the restriction of intramolecular rotation in AIE compounds and the vast surface area of electrospun fibers, a combination that enables tunable and amplified quantum yield. [23,29] Our exploration leads us to Janus fibers, a specific type of electrospun fibers fabricated by side-by-side electrospinning, opening yet another door for innovation.…”

Sensitive Detection of Trace Explosives by a Self-Assembled Monolayer Sensor

“…Nevertheless, prior investigations have predominantly centered around liquid-phase systems, thereby impeding their applicability in practical solid-state devices. The pursuit of swift response times and exceptional sensitivity continues to pose a formidable challenge, which needs the existence of high-concentration SAMs in a limited area or volume [21][22][23].…”

Stimuli‐Responsive Electrospun Fluorescent Fibers Augmented with Aggregation‐Induced Emission (AIE) for Smart Applications

“…These work demonstrate the diversity of the optical performance and functionalities of AIE when paired with electrospun fibers. [ 97 , 98 ] The recent reviews have covered the various excited state phenomena associated with AIEgens, such as TICT (twisted intramolecular charge transfer), PET (photo‐induced electron transfer), RIR (restriction of intramolecular motion), and ISC (intersystem crossing) in fiber, which have been used for smart sensing in fields such as biomedical, energy conversion, and electronics. [ 98 , 99 ] Existing reviews concentrate on how AIE properties are enhanced in the fiber; however, the relationship between fiber morphology and structural interaction with AIE aggregates is not thoroughly explored.…”

“…Until now, the attention was given to the incorporation of AIE materials in fiber and the plausible AIE mechanisms. [ 97 , 98 , 99 ] Encouragingly, the results to date suggest that electrospun nanofibers and porous films/membranes incorporating AIEgens hold a lot of promise, since they offer enhanced photostability, photothermal properties, photoefficiency, and sensitivity. In this review, we have adopted a different approach and concentrate our discussions on the structure−processing−property relationships of AIE‐active electrospun fibers.…”