Year: 2017
Type: article
Abstract: Today the high demand for electronics leads to massive production of waste, thus green materials based electronic devices are becoming more important for environmental protection and sustainability. The biomaterial based hydrogels are widely used in tissue engineering, but their uses in photonics are limited. In this study, silk fibroin protein in hydrogel form is explored as a bio-friendly alternative to conventional polymers for lens applications in light-emitting diodes. The concentration of silk fibroin protein and crosslinking agent had direct effects on optical properties of silk hydrogel. The spatial radiation intensity distribution was controlled via dome- and crater-type silk-hydrogel lenses. The hydrogel lens showed a light extraction efficiency over 0.95 on a warm white LED. The stability of silk hydrogel lens is enhanced approximately three-folds by using a biocompatible/biodegradable poly(ester-urethane) coating and more than three orders of magnitude by using an edible paraffin wax coating. Therefore, biomaterial lenses show promise for green optoelectronic applications.
Source: Scientific Reports
Institution: Koç University
Language: English
Subfield: Biomaterials
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,690
Awards: Yeni Bir Optik İpek Yolu: Biyo Ve Nano-Optik Uygulamalar İçin İpek Entegre Optiği, Protein-integrated white light-emitting diodes for efficient, high-quality and biocompatible solid-state lighting, Controlled and Re-programmable Growth Of Neurons By Electrowetting Display Technology For Cellular Circuitry
OpenAlex ID: W2740402675