Optimization of nano-honeycomb structures for flexible w-LEDs | Zendy

Huang-Yu Lin | Zendy; Yung-Min Pai | Zendy; Jingxing Shi | Zendy; Xin-Yin Chen | Zendy; Chung-Hsiang Lin | Zendy; ChihMing Weng | Zendy; TzuYu Chen | Zendy; ChienChung Lin | Zendy; Martin D. B. Charlton | Zendy; YiPai Huang | Zendy; ChyongHua Chen | Zendy; HuangMing Philip Chen | Zendy; HaoChung Kuo | Zendy

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Optimization of nano-honeycomb structures for flexible w-LEDs

Author(s) -

Huang-Yu Lin,

Yung-Min Pai,

Jingxing Shi,

Xin-Yin Chen,

Chung-Hsiang Lin,

ChihMing Weng,

TzuYu Chen,

ChienChung Lin,

Martin D. B. Charlton,

YiPai Huang,

ChyongHua Chen,

HuangMing Philip Chen,

HaoChung Kuo

Publication year - 2017

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.25.020466

Subject(s) - light emitting diode , materials science , phosphor , nano , optoelectronics , optics , luminous efficacy , fabrication , honeycomb , diode , led lamp , nanotechnology , layer (electronics) , composite material , medicine , physics , alternative medicine , pathology

This study presents the low cost fabrication of flexible white-light-emitting diodes (w-LEDs) with nano-honeycomb-structured phosphor films. Extending the dimensions of the nano-honeycomb structures improved the color uniformity of the flexible samples, and the 950-nm pattern sample demonstrated optimal color uniformity because this nano-pattern exhibited an excellent diffusion ability owing to its pitch size. In addition to color uniformity, the use of this nano-pattern improved the luminous efficiency. The 750-nm pattern exhibited the highest luminous efficiency (235.8 lm/W), which was approximately 7% higher than that exhibited by a non-patterned phosphor film sample. Thus, flexible w-LEDs with nano-honeycomb structure optimization have great potential to be used as next-generation lighting sources.

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