Far-red triplet sensitized Z-to-E photoswitching of azobenzene in bioplastics
Artikel i vetenskaplig tidskrift, 2022

We report the first example of direct far-red triplet sensitized molecular photoswitching in a condensed phase wherein a liquid azobenzene derivative (Azo1) co-assembled within a liquid surfactant-protein film undergoes triplet sensitized Z-to-E photoswitching upon far-red/red light excitation in air. The role of triplet sensitization in photoswitching has been confirmed by quenching of sensitizer phosphorescence by Z-Azo1 and temperature-dependent photoswitching experiments. Herein, we demonstrate new biosustainable fabrication designs to address key challenges in solid-state photoswitching, effectively mitigating chromophore aggregation and requirement of high energy excitations by dispersing the photoswitch in the trapped liquid inside the solid framework and by shifting the action spectrum from blue-green light (450-560 nm) to the far-red/red light (740/640 nm) region.

Författare

Pankaj Bharmoria

Göteborgs universitet

Shima Ghasemi

Chalmers, Kemi och kemiteknik, Kemi och biokemi

Fredrik Edhborg

Chalmers, Kemi och kemiteknik, Kemi och biokemi

Raul Losantos

Universidad de La Rioja

Centre national de la recherche scientifique (CNRS)

Université Paris Cité

Zhihang Wang

Chalmers, Kemi och kemiteknik, Tillämpad kemi

Anders Mårtensson

Chalmers, Kemi och kemiteknik, Tillämpad kemi

Masa-aki Morikawa

Kyushu University

Nobuo Kimizuka

Kyushu University

Umit Isci

Gebze Teknik Üniversitesi (GYTE)

Fabienne Dumoulin

Acibadem Universitesi

Bo Albinsson

Chalmers, Kemi och kemiteknik, Kemi och biokemi

Kasper Moth-Poulsen

Chalmers, Kemi och kemiteknik, Tillämpad kemi

Chemical Science

2041-6520 (ISSN) 2041-6539 (eISSN)

Vol. 13 11904

Ämneskategorier

Fysikalisk kemi

Atom- och molekylfysik och optik

Annan kemi

DOI

10.1039/d2sc04230d

Mer information

Senast uppdaterat

2023-10-26