Source 1primary paper2023Nature Communications
Toolkit/tetraphenylethylene self-assembled monolayer mechano-optoelectronic molecular switch
tetraphenylethylene self-assembled monolayer mechano-optoelectronic molecular switch
Also known as: self-assembled monolayers (SAMs) of tetraphenylethylene molecules, TPE SAM mechano-optoelectronic switch
Taxonomy: Mechanism Branch / Architecture. Workflows sit above the mechanism and technique branches rather than replacing them.
Summary
Here we achieve fully reversible in-situ mechano-optoelectronic switching in self-assembled monolayers (SAMs) of tetraphenylethylene molecules by bending their supporting electrodes to maximize aggregation-induced emission (AIE).
Usefulness & Problems
Why this is useful
This system enables fully reversible in-situ mechano-optoelectronic switching in tetraphenylethylene self-assembled monolayers within an electronic device. Bending the supporting electrodes is used to maximize aggregation-induced emission and enhance conductance under UV light.; in-situ reversible molecular switching inside electronic devices; light- and mechanically controlled conductance modulation in soft electronics
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This system enables fully reversible in-situ mechano-optoelectronic switching in tetraphenylethylene self-assembled monolayers within an electronic device. Bending the supporting electrodes is used to maximize aggregation-induced emission and enhance conductance under UV light.
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in-situ reversible molecular switching inside electronic devices
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light- and mechanically controlled conductance modulation in soft electronics
Problem solved
The paper frames the tool as overcoming the inability to realize highly efficient molecular photoswitching inside electronic devices because excited states are quenched by background interactions.; addresses failure of highly efficient molecular photoswitching inside electronic devices due to quenching of excited states by background interactions
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The paper frames the tool as overcoming the inability to realize highly efficient molecular photoswitching inside electronic devices because excited states are quenched by background interactions.
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addresses failure of highly efficient molecular photoswitching inside electronic devices due to quenching of excited states by background interactions
Problem links
addresses failure of highly efficient molecular photoswitching inside electronic devices due to quenching of excited states by background interactions
LiteratureThe paper frames the tool as overcoming the inability to realize highly efficient molecular photoswitching inside electronic devices because excited states are quenched by background interactions.
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The paper frames the tool as overcoming the inability to realize highly efficient molecular photoswitching inside electronic devices because excited states are quenched by background interactions.
Taxonomy & Function
Primary hierarchy
Mechanism Branch
Architecture: A reusable architecture pattern for arranging parts into an engineered system.
Mechanisms
aggregation-induced emissionconductance switchingConformational Uncagingmechanically induced conformational controluv-light-enhanced electron-hole coulomb interactionTechniques
No technique tags yet.
Target processes
recombinationImplementation Constraints
cofactor dependency: cofactor requirement unknownencoding mode: genetically encodedimplementation constraint: context specific validationoperating role: regulatorswitch architecture: uncaging
The abstract supports a need for tetraphenylethylene SAMs, supporting electrodes that can be bent, and UV-light stimulation. Performance also depends on the device architecture, especially a concave configuration.; requires self-assembled monolayers of tetraphenylethylene molecules; requires bending of supporting electrodes; requires UV light; performance depends on architecture-induced supramolecular tightening
The abstract does not show that the switch is a general solution for all molecular photoswitches or all device architectures. It also does not establish performance outside the reported SAM and soft-electronics context.; best performance depends on the most concave architecture; mechanism and performance are tied to aggregation-induced emission and supramolecular assembly
Validation
Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication
Supporting Sources
Ranked Claims
Tetraphenylethylene self-assembled monolayers can achieve fully reversible in-situ mechano-optoelectronic switching inside electronic devices when supporting electrodes are bent to maximize aggregation-induced emission.
The reported switching time is 10-100 times faster than other approaches.
speed improvement vs other approaches 10-100× faster
The most concave device architecture gives the best mechano-optoelectronic switching by reducing ambient single-molecule conformational entropy and creating artificially tightened supramolecular assemblies.
Multimodal characterization indicates that mechanically controlled emission and UV-light-enhanced Coulomb interaction between electrons and holes produce a giant enhancement of molecular conductance.
Using tetraphenylethylene derivatives with more aggregation-induced-emission-active sites could improve performance to switching ratios on the order of 10^5.
projected switching ratio on the order of 10^5
The reported tetraphenylethylene self-assembled monolayer switch shows stable reversible switching across more than 1600 on/off cycles with an on/off ratio of 3.8 x 10^3 and a switching time of 140 ms.
on off cycles 1600on off ratio (3.8 ± 0.1) × 10^3switching time 140 ± 10 ms
Approval Evidence
1 source6 linked approval claimsfirst-pass slug tetraphenylethylene-self-assembled-monolayer-mechano-optoelectronic-molecular-switch
Here we achieve fully reversible in-situ mechano-optoelectronic switching in self-assembled monolayers (SAMs) of tetraphenylethylene molecules by bending their supporting electrodes to maximize aggregation-induced emission (AIE).
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capabilitysupports
Tetraphenylethylene self-assembled monolayers can achieve fully reversible in-situ mechano-optoelectronic switching inside electronic devices when supporting electrodes are bent to maximize aggregation-induced emission.
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comparative performancesupports
The reported switching time is 10-100 times faster than other approaches.
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design rulesupports
The most concave device architecture gives the best mechano-optoelectronic switching by reducing ambient single-molecule conformational entropy and creating artificially tightened supramolecular assemblies.
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mechanismsupports
Multimodal characterization indicates that mechanically controlled emission and UV-light-enhanced Coulomb interaction between electrons and holes produce a giant enhancement of molecular conductance.
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optimization projectionsupports
Using tetraphenylethylene derivatives with more aggregation-induced-emission-active sites could improve performance to switching ratios on the order of 10^5.
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performancesupports
The reported tetraphenylethylene self-assembled monolayer switch shows stable reversible switching across more than 1600 on/off cycles with an on/off ratio of 3.8 x 10^3 and a switching time of 140 ms.
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Comparisons
Source-stated alternatives
The abstract only mentions 'other approaches' as slower comparators without naming them. Upstream summary materials suggest prior azobenzene-based in-situ SAM switching as a nearby comparator class, but the abstract itself does not explicitly name it.
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The abstract only mentions 'other approaches' as slower comparators without naming them. Upstream summary materials suggest prior azobenzene-based in-situ SAM switching as a nearby comparator class, but the abstract itself does not explicitly name it.
Source-backed strengths
fully reversible in-situ switching; stable switching across more than 1600 on/off cycles; large on/off ratio; switching time reported as 10-100x faster than other approaches
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fully reversible in-situ switching
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stable switching across more than 1600 on/off cycles
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large on/off ratio
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switching time reported as 10-100x faster than other approaches
tetraphenylethylene self-assembled monolayer mechano-optoelectronic molecular switch and CheRiff + jRCaMP1b + RH237 cardiac all-optical electrophysiology platform address a similar problem space because they share recombination.
Shared frame: same top-level item type; shared target processes: recombination
Strengths here: looks easier to implement in practice.
Compared with chimeric enzymes with new regulatory functions
tetraphenylethylene self-assembled monolayer mechano-optoelectronic molecular switch and chimeric enzymes with new regulatory functions address a similar problem space because they share recombination.
Shared frame: same top-level item type; shared target processes: recombination; shared mechanisms: conformational_uncaging
Compared with joining proteins in creative ways
tetraphenylethylene self-assembled monolayer mechano-optoelectronic molecular switch and joining proteins in creative ways address a similar problem space because they share recombination.
Shared frame: same top-level item type; shared target processes: recombination; shared mechanisms: conformational_uncaging
Ranked Citations
- 1.