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Fully biogenic near-infrared phosphors: Phycobiliproteins and cellulose at force toward highly efficient and stable bio-hybrid light-emitting diodes.
Adv. Func. Mat., DOI: 10.1002/adfm.202301820 (2023)
Stable/efficient low-energy emitters for photon down-conversion in bio-hybrid light-emitting diodes (Bio-HLEDs) are still challenging, as the archetypal fluorescent protein (FP) mCherry has led to the best deep-red Bio-HLEDs with poor stabilities: 3 h (on-chip)/160 h (remote). Capitalizing on the excellent refolding under temperature/pH/chemical stress, high brightness, and high compatibility with polysaccharides of phycobiliproteins (smURFP), first-class low-energy emitting Bio-HLEDs are achieved. They outperform those with mCherry regardless of using reference polyethylene oxide (on-chip: 24 h vs. 3 h) and new biopolymer hydroxypropyl cellulose (HPC; on-chip: 44 h vs. 3 h) coatings. Fine optimization of smURFP-HPC-coatings leads to stable record devices (on-chip: 2600 h/108 days) compared to champion devices with perylene diimides (on-chip: <700 h) and artificial FPs (on-chip: 35 h). Finally, spectroscopy/computational/thermal assays confirm that device degradation is related to the photo-induced reduction of biliverdin to bilirubin. Overall, this study pinpoints a new family of biogenic emitters toward superior protein-based lighting.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Bio-hybrid Light-emitting Diodes ; Near-infrared Bio-phosphors ; Photon Down-conversion ; Phycobiliproteins ; Protein-based Lighting; Hydroxypropyl Cellulose; Fluorescent Proteins; Dark States; Stability; Stabilization; Phycocyanin
ISSN (print) / ISBN
1616-301X
e-ISSN
1616-3028
Zeitschrift
Advanced functional materials
Verlag
Wiley
Verlagsort
Weinheim
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed
Förderungen
European Research Council (ERC)
Marie Curie Actions (MSCA)
ERC-Co InOutBioLight
European Union
Marie Curie Actions (MSCA)
ERC-Co InOutBioLight
European Union