Multi-Stimuli-Responsive Directional Assembly of an Amphiphilic Donor-Acceptor Alternating Supramolecular Copolymer

The solution-state, solid-state and exceptional stimuli-responsive properties of a series of aromatic conjugated monoalkoxynaphthalene–naphthalimide donor–acceptor dyads is reported.

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Stimuli-responsive fluorescence switching of cyanostilbene derivatives: ultrasensitive water, acidochromism and mechanochromism

RSC Advances ◽

10.1039/c8ra03598a ◽

2018 ◽

Vol 8 (40) ◽

pp. 22806-22812 ◽

Cited By ~ 19

Author(s):

Bin Wang ◽

ChunYing Wei

Keyword(s):

High Pressure ◽

Photo Luminescence ◽

Peak Shift ◽

High Contrast ◽

Stimuli Responsive ◽

Luminescence Efficiency ◽

Luminescence Peak ◽

Donor Acceptor ◽

Fluorescence Switching

A donor–acceptor dye exhibits high luminescence efficiency and high-contrast piezochromism with HLCT properties. The doped films show the ratiometric photo-luminescence peak shift under high pressure, interestingly, making them piezo-sensors.

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Constructing Donor-Resonance-Donor Molecules for Acceptor-Free Bipolar Organic Semiconductors

Research ◽

10.34133/2021/9525802 ◽

2021 ◽

Vol 2021 ◽

pp. 1-10

Author(s):

He Jiang ◽

Jibiao Jin ◽

Zijie Wang ◽

Wuji Wang ◽

Runfeng Chen ◽

...

Keyword(s):

Organic Semiconductors ◽

High Performance ◽

Molecular Design ◽

Stimuli Responsive ◽

Light Emitting ◽

Deep Blue ◽

Device Structures ◽

Device Applications ◽

Donor Acceptor ◽

Organic Optoelectronic

Organic semiconductors with bipolar transporting character are highly attractive as they offer the possibility to achieve high optoelectronic performance in simple device structures. However, the continual efforts in preparing bipolar materials are focusing on donor-acceptor (D-A) architectures by introducing both electron-donating and electron-withdrawing units into one molecule in static molecular design principles. Here, we report a dynamic approach to construct bipolar materials using only electron-donating carbazoles connected by N-P=X resonance linkages in a donor-resonance-donor (D-r-D) structure. By facilitating the stimuli-responsive resonance variation, these D-r-D molecules exhibit extraordinary bipolar properties by positively charging one donor of carbazole in enantiotropic N+=P-X- canonical forms for electron transport without the involvement of any acceptors. With thus realized efficient and balanced charge transport, blue and deep-blue phosphorescent organic light emitting diodes hosted by these D-r-D molecules show high external quantum efficiencies up to 16.2% and 18.3% in vacuum-deposited and spin-coated devices, respectively. These results via the D-r-D molecular design strategy represent an important concept advance in constructing bipolar organic optoelectronic semiconductors dynamically for high-performance device applications.

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Acceptor-donor-acceptor-linked triphenylamine and phenothiazine motifs as cousin molecules: Methyl-effect on stimuli-responsiveness, crystallochromism and dual-state emission

New Journal of Chemistry ◽

10.1039/d1nj04190h ◽

2021 ◽

Author(s):

Manab Chakravarty ◽

Shouvik Bhuin ◽

Suman Bhattacharya

Keyword(s):

Stimuli Responsive ◽

High Demand ◽

Responsive Materials ◽

Donor Acceptor ◽

Methyl Effect

Stimuli-responsive materials are in high demand but are hard to achieve. Although many molecules with donor-acceptor-donor (D-A-D) have been investigated as stimuli-responsive materials, the relatively A-D-A system has not been...

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Stimuli-Responsive Donor-Acceptor and DNA-Crosslinked Hydrogels: Application as Shape-Memory and Self-Healing Materials

Advanced Functional Materials ◽

10.1002/adfm.201803111 ◽

2018 ◽

Vol 28 (35) ◽

pp. 1803111 ◽

Cited By ~ 34

Author(s):

Chen Wang ◽

Michael Fadeev ◽

Margarita Vázquez-González ◽

Itamar Willner

Keyword(s):

Shape Memory ◽

Self Healing ◽

Stimuli Responsive ◽

Donor Acceptor

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Multi-Stimuli-Responsive Fluorescence Switching of a Donor−Acceptor π-Conjugated Compound

The Journal of Physical Chemistry Letters ◽

10.1021/jz200140c ◽

2011 ◽

Vol 2 (6) ◽

pp. 666-670 ◽

Cited By ~ 191

Author(s):

Chuandong Dou ◽

Liang Han ◽

Shanshan Zhao ◽

Hongyu Zhang ◽

Yue Wang

Keyword(s):

Stimuli Responsive ◽

Donor Acceptor ◽

Fluorescence Switching

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All-or-none switching of photon upconversion in self-assembled organogel systems

Faraday Discussions ◽

10.1039/c6fd00170j ◽

2017 ◽

Vol 196 ◽

pp. 305-316 ◽

Cited By ~ 19

Author(s):

Pengfei Duan ◽

Deepak Asthana ◽

Takuya Nakashima ◽

Tsuyoshi Kawai ◽

Nobuhiro Yanai ◽

...

Keyword(s):

Self Assembly ◽

Room Temperature ◽

Stimuli Responsive ◽

Molecular Systems ◽

Controlled Assembly ◽

Outstanding Problem ◽

Self Assembling ◽

New Strategy ◽

Donor Acceptor

Aggregation-induced photon upconversion (iPUC) based on a triplet–triplet annihilation (TTA) process is successfully developed via controlled self-assembly of donor–acceptor pairs in organogel nanoassemblies. Although segregation of donor from acceptor assemblies has been an outstanding problem in TTA-based UC and iPUC, we resolved this issue by modifying both the triplet donor and aggregation induced emission (AIE)-type acceptor with glutamate-based self-assembling moieties. These donors and acceptors co-assemble to form organogels without segregation. Interestingly, these donor–acceptor binary gels show upconversion at room temperature but the upconversion phenomena were lost upon dissolution of the gels on heating. The observed changes in TTA-UC emission were thermally reversible, reflecting the controlled assembly/disassembly of the binary molecular systems. The observed on/off ratio of UC emission was much higher than that of the aggregation-induced fluorescence of the acceptor, which highlights the important role of iPUC, i.e., multi-exciton TTA for photoluminescence switching. This work bridges iPUC and supramolecular chemistry and provides a new strategy for designing stimuli-responsive upconversion systems.

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Stimuli-responsive NLO properties of tetrathiafulvalene-fused donor–acceptor chromophores

Physical Chemistry Chemical Physics ◽

10.1039/c7cp04687a ◽

2017 ◽

Vol 19 (33) ◽

pp. 22573-22579 ◽

Cited By ~ 7

Author(s):

E. Cariati ◽

X. Liu ◽

Y. Geng ◽

A. Forni ◽

E. Lucenti ◽

...

Keyword(s):

Optical Properties ◽

Electron Donor ◽

Nonlinear Optical ◽

Second Order ◽

Nonlinear Optical Properties ◽

Stimuli Responsive ◽

Nlo Properties ◽

Donor Acceptor

Tetrathiafulvalene-fused electron donor–acceptor dyads display second order nonlinear optical properties that can be triggered by a pH or a redox stimulus.

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