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Journal Article
A Facile Route to Efficient, Low‐Cost Flexible Organic Light‐Emitting Diodes: Utilizing the High Refractive Index and Built‐In Scattering Properties of Industrial‐Grade PEN Substrates
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- Authors
- Eunhye Kim, Hyunsu Cho, Kyoohyun Kim, Tae-Wook Koh, Jin Chung, Jonghee Lee, YongKeun Park, Seunghyup Yoo
- Issue Date
- 2015-03
- Citation
- Advanced Materials, v.27, no.9, pp.1624-1631
- ISSN
- 0935-9648
- Publisher
- John Wiley & Sons
- Language
- English
- Type
- Journal Article
- Abstract
- An industrial-grade polyethylene naphthalate (PEN) substrate is explored as a simple, cost-effective platform for high-efficiency organic light-emitting diodes (OLEDs). Its high refractive index, combined with the built-in scattering properties inherent to the industrial-grade version, allows for a signifi cant enhancement in outcoupling without any extra structuring or special optical elements. Flexible, color-stable OLEDs with efficiency close to 100 lm W-1 are demonstrated. (Figure Presented)
- KSP Keywords
- Built-in, Facile route, High refractive index, PEN substrates, Polyethylene naphthalate, W-, cost-effective, high efficiency, light emitting diodes(LED), optical element, organic light emitting diode(OLED)