Organic thin film photofaradaic pixels for on-demand electrochemistry in physiological conditions

Maciej Gryszel , Eric Głowacki

Abstract

We report ultrathin organic photovoltaic elements optimized to run photofaradaic reactions in biological conditions. We demonstrate concurrent oxygen reduction to hydrogen peroxide and glucose oxidation. The devices are powered by deep-red irradiation in the tissue transparency window. We utilize bilayers of phthalocyanine, acting as the light absorber, and perylene diimide, functioning as both electron-acceptor and the hydrogen peroxide evolution electrocatalyst. These heterojunction bilayers are stable when irradiated in simulated physiological conditions, producing photovoltages sufficient to simultaneously drive cathodic oxygen reduction to H2O2 and anodic oxidation of glucose. We find that optimization of the anode metal is critical for sustained photofaradaic reactivity. Our results demonstrate a robust “wet” thin film photovoltaic with potential for physiological applications where localized electrochemical manipulation is desired, in particular the delivery of reactive oxygen species.
Author Maciej Gryszel (FC / DOC)
Maciej Gryszel,,
- Department Of Organic Chemistry
, Eric Głowacki (FC / CPCT)
Eric Głowacki,,
- Chair Of Polymer Chemistry And Technology
Journal seriesChemical Communications, ISSN 1359-7345, e-ISSN 1364-548X
Issue year2020
Vol56
No11
Pages1705-1708
Publication size in sheets0.5
ASJC Classification1503 Catalysis; 1600 General Chemistry; 2503 Ceramics and Composites; 2504 Electronic, Optical and Magnetic Materials; 2505 Materials Chemistry; 2506 Metals and Alloys; 2508 Surfaces, Coatings and Films
DOIDOI:10.1039/C9CC09215C
URL https://pubs.rsc.org/en/content/articlelanding/2020/CC/C9CC09215C#!divAbstract
Languageen angielski
File
c9cc09215c(1).pdf 2.29 MB
Score (nominal)200
Score sourcejournalList
ScoreMinisterial score = 200.0, 05-08-2020, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.133; WoS Impact Factor: 2018 = 6.164 (2) - 2018=5.989 (5)
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