Synchronous Electrochromism and Electrofluorochromism in a Zirconium Pyrenetetrabenzoate Metal-Organic Framework

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F24%3A00585656" target="_blank" >RIV/61388955:_____/24:00585656 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0353333" target="_blank" >https://hdl.handle.net/11104/0353333</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/aelm.202300854" target="_blank" >10.1002/aelm.202300854</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Synchronous Electrochromism and Electrofluorochromism in a Zirconium Pyrenetetrabenzoate Metal-Organic Framework

Popis výsledku v původním jazyce

Redox-active materials that exhibit both electrochromism and electrofluorochromism have great potential as multifunctional elements in optoelectronics. Here, in situ spectroelectrochemistry is presented on NU-1000, a zirconium pyrenetetrabenzoate metal-organic framework. A thin film of NU-1000 exhibits reversible color changes between light yellow and dark blue when subjected to an alternating electrochemical potential. In situ fluorescence excitation-emission spectral mapping elucidates a dominant blue emission of highly fluorescent electrochromic NU-1000 that is being quenched via an oxidation reaction. Density-functional theory calculations reveal the forbidden optical transition between the singly occupied molecular orbital (SOMO) and the lowest unoccupied molecular orbital (LUMO) in the oxidized linker as the cause of the quenching. Double potential step chronoamperometry measures response times as fast as a dozen seconds and excellent switching stability over 500 cycles without noticeable attenuation of the color contrast. These findings provide valuable insight into the electrochromism and electrofluorochromism in metal-organic frameworks, offering exciting opportunities for developing advanced multifunctional porous materials with potential applications in optoelectronics and sensing.

Název v anglickém jazyce

Synchronous Electrochromism and Electrofluorochromism in a Zirconium Pyrenetetrabenzoate Metal-Organic Framework

Popis výsledku anglicky

Redox-active materials that exhibit both electrochromism and electrofluorochromism have great potential as multifunctional elements in optoelectronics. Here, in situ spectroelectrochemistry is presented on NU-1000, a zirconium pyrenetetrabenzoate metal-organic framework. A thin film of NU-1000 exhibits reversible color changes between light yellow and dark blue when subjected to an alternating electrochemical potential. In situ fluorescence excitation-emission spectral mapping elucidates a dominant blue emission of highly fluorescent electrochromic NU-1000 that is being quenched via an oxidation reaction. Density-functional theory calculations reveal the forbidden optical transition between the singly occupied molecular orbital (SOMO) and the lowest unoccupied molecular orbital (LUMO) in the oxidized linker as the cause of the quenching. Double potential step chronoamperometry measures response times as fast as a dozen seconds and excellent switching stability over 500 cycles without noticeable attenuation of the color contrast. These findings provide valuable insight into the electrochromism and electrofluorochromism in metal-organic frameworks, offering exciting opportunities for developing advanced multifunctional porous materials with potential applications in optoelectronics and sensing.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Advanced Electronic Materials

ISSN

2199-160X

e-ISSN

2199-160X

Svazek periodika

10

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

10

Strana od-do

2300854

Kód UT WoS článku

001203340100001

EID výsledku v databázi Scopus

2-s2.0-85190404352