Researchers in Taiwan have discovered that gold nanoparticles can create luminescence in tree leaves, opening the possibility of glowing trees that cold act as streetlights.
This research could create an energy-efficient way to light streets.
"Upon learning of the discovery, Assistant Prof. Shih-Hui Chang said: 'Light emitting diode (LED) has replaced traditional light source in many display panels and street lights on the road. A lot of light emitting diode, especially white light emitting diode, uses phosphor powder to stimulate light of different wavelengths. However, phosphor powder is highly toxic and its price is expensive. As a result, Dr. Yen-Hsun Wu had the idea to discover a method which is less toxic to replace phosphor powder which can harm human bodies and cause environmental pollution. This is a major motivation for him to engage in the research at the first place.'"
FULL STORY: Gold nanoparticles turn trees into streetlights
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Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
Gallatin County Department of Planning & Community Development
Heyer Gruel & Associates PA
JM Goldson LLC
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City of Astoria
Transportation Research & Education Center (TREC) at Portland State University
Jefferson Parish Government
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