Long-living and highly efficient bio-hybrid light-emitting diodes with zero-thermal-quenching biophosphors

Anna Espasa, Martina Lang, Carmen F. Aguiño, Daniel Sanchez-deAlcazar, Juan P. Fernández-Blázquez, Uwe Sonnewald, Aitziber L. Cortajarena, Pedro B. Coto, Rubén D. Costa*

*この研究の対応する著者

研究成果: Article査読

12 被引用数 (Scopus)

抄録

Bio-hybrid light-emitting diodes (Bio-HLEDs) based on color down-converting filters with fluorescent proteins (FPs) have achieved moderate efficiencies (50 lm/W) and stabilities (300 h) due to both thermal- and photo-degradation. Here, we present a significant enhancement in efficiency (~130 lm/W) and stability (>150 days) using a zero-thermal-quenching bio-phosphor design. This is achieved shielding the FP surface with a hydrophilic polymer allowing their homogenous integration into the network of a light-guiding and hydrophobic host polymer. We rationalize how the control of the mechanical and optical features of this bio-phosphor is paramount towards highly stable and efficient Bio-HLEDs, regardless of the operation conditions. This is validated by the relationships between the stiffness of the FP-polymer phosphor and the maximum temperature reached under device operation as well as the transmittance of the filters and device efficiency.

本文言語English
論文番号879
ジャーナルNature communications
11
1
DOI
出版ステータスPublished - 2020 12月 1

ASJC Scopus subject areas

  • 化学 (全般)
  • 生化学、遺伝学、分子生物学(全般)
  • 物理学および天文学(全般)

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