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Synthesis of Near-Infrared Emitting Gold Nanoclusters for Biological Applications
Published on: March 22, 2020
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Non-Toxic Gold Nanoclusters for Solution-Processed White Light-Emitting Diodes.
Yu-Chiang Chao1, Kai-Ping Cheng2, Ching-Yi Lin2
1Department of Physics, National Taiwan Normal University, Taipei, 11677, Taiwan. ycchao@ntnu.edu.tw.
Scientific Reports
|June 13, 2018
Summary
Environmentally friendly gold nanoclusters offer a non-toxic alternative for creating white-light-emitting diodes (WLEDs). This research demonstrates their potential for sustainable optoelectronic devices, moving away from hazardous materials like lead and cadmium.
Area of Science:
- Materials Science
- Nanotechnology
- Optoelectronics
Background:
- Solution-processed optoelectronic devices offer low-cost fabrication and flexibility.
- Current devices often use toxic elements like lead and cadmium, raising environmental concerns.
Purpose of the Study:
- To demonstrate white-light-emitting diodes (WLEDs) using non-toxic gold nanoclusters.
- To explore an environmentally friendly alternative to traditional optoelectronic materials.
Main Methods:
- Synthesized yellow-light-emitting gold nanoclusters capped with trioctylphosphine.
- Blended gold nanoclusters with blue-light-emitting organic host materials for the emissive layer.
Main Results:
- Achieved a current efficiency of 0.13 cd/A.
- Obtained Commission Internationale de l'Eclairage chromaticity coordinates of (0.27, 0.33), close to ideal white.
Conclusions:
- Gold nanoclusters are a viable, non-toxic material for white light emission.
- Potential applications in sustainable lighting and display technologies.
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