White-emitting Protein-Metal Nanocluster Phosphors for Highly Performing Biohybrid Light-Emitting Diodes.
Nano Lett
; 20(4): 2710-2716, 2020 04 08.
Article
em En
| MEDLINE
| ID: mdl-32155079
ABSTRACT
This work presents a simple in situ synthesis and stabilization of fluorescent gold nanoclusters (AuNCs) with different sizes using engineered protein scaffolds in water. The protein-AuNC hybrids show a dual emission (450 and 700 nm) with a record photoluminescence quantum yield of 20%. These features impelled us to apply them to biohybrid light-emitting diodes as color down-converting filters or biophosphors. Efficient white emission (x/y CIE color coordinates of 0.31/0.29) and stabilities of more than 800 h were achieved. This represents a 2 orders of magnitude enhancement compared to the prior art. Besides the outstanding performance, the protein scaffold also infers a unique anisotropic emission character that is considered as a proof-of-concept of high interest for single-point lighting and display.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Proteínas
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Substâncias Luminescentes
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Nanopartículas Metálicas
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Ouro
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article