Stable White Light-Emitting Biocomposite Films

Julia Gotta, Tal Ben Shalom, Stella Aslanoglou, Anna Cifuentes-Rius, Nicolas H. Voelcker, Roey Elnathan, Oded Shoseyov, Shachar Richter

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The demonstration of reliable and stable white light-emitting diodes (LEDs) is one of the main technological challenges of the LED industry. This is usually accomplished by incorporation of light-emitting rare-earth elements (REEs) compounds within an external polymeric coating of a blue LED allowing the generation of white light. However, due to both environmental and cost issues, the development of low-cost REE-free coatings, which exhibit competitive performance compared to conventional white LED is of great importance. In this work, the formation of an REE-free white LED coating is demonstrated. This biocomposite material, composed of biological (crystalline nanocellulose and porcine gastric mucin) and organic (light-emitting dyes) compounds, exhibits excellent optical and mechanical properties as well as resistance to heat, humidity, and UV radiation. The coating is further used to demonstrate a working white LED by incorporating it within a commercial blue LED.

Original languageEnglish
Article number1706967
Number of pages9
JournalAdvanced Functional Materials
Volume28
Issue number24
DOIs
Publication statusPublished - 13 Jun 2018

Keywords

  • bio-LEDs
  • crystalline nanocellulose
  • mucin
  • phosphor materials
  • white LEDs

Cite this

Gotta, Julia ; Shalom, Tal Ben ; Aslanoglou, Stella ; Cifuentes-Rius, Anna ; Voelcker, Nicolas H. ; Elnathan, Roey ; Shoseyov, Oded ; Richter, Shachar. / Stable White Light-Emitting Biocomposite Films. In: Advanced Functional Materials. 2018 ; Vol. 28, No. 24.
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abstract = "The demonstration of reliable and stable white light-emitting diodes (LEDs) is one of the main technological challenges of the LED industry. This is usually accomplished by incorporation of light-emitting rare-earth elements (REEs) compounds within an external polymeric coating of a blue LED allowing the generation of white light. However, due to both environmental and cost issues, the development of low-cost REE-free coatings, which exhibit competitive performance compared to conventional white LED is of great importance. In this work, the formation of an REE-free white LED coating is demonstrated. This biocomposite material, composed of biological (crystalline nanocellulose and porcine gastric mucin) and organic (light-emitting dyes) compounds, exhibits excellent optical and mechanical properties as well as resistance to heat, humidity, and UV radiation. The coating is further used to demonstrate a working white LED by incorporating it within a commercial blue LED.",
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Stable White Light-Emitting Biocomposite Films. / Gotta, Julia; Shalom, Tal Ben; Aslanoglou, Stella; Cifuentes-Rius, Anna; Voelcker, Nicolas H.; Elnathan, Roey; Shoseyov, Oded; Richter, Shachar.

In: Advanced Functional Materials, Vol. 28, No. 24, 1706967, 13.06.2018.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Gotta, Julia

AU - Shalom, Tal Ben

AU - Aslanoglou, Stella

AU - Cifuentes-Rius, Anna

AU - Voelcker, Nicolas H.

AU - Elnathan, Roey

AU - Shoseyov, Oded

AU - Richter, Shachar

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