Improving Near-Infrared LEDs with Liquid Ligands
Author Information
Author(s): Zong-Shuo Liu, Ye Wang, Feng Zhao, Hua-Hui Li, Wei-Zhi Liu, Wan-Shan Shen, Hong-Wei Duan
Primary Institution: Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, China
Hypothesis
Can a bidentate liquid ligand improve the efficiency of near-infrared perovskite quantum dot LEDs?
Conclusion
The study found that using a bidentate liquid ligand significantly enhances the efficiency of near-infrared perovskite quantum dot LEDs.
Supporting Evidence
- The FASCN-treated films exhibited fourfold higher binding energy than the original oleate ligands.
- The conductivity of the treated films was eightfold higher than the control.
- The champion external quantum efficiency (EQE) of the treated LEDs was approximately 23%, which is twofold higher than the control.
Takeaway
Scientists used a special liquid to help tiny light-emitting dots work better, making them shine brighter and use less energy.
Methodology
The study involved treating perovskite quantum dots with a bidentate liquid ligand to improve their surface coverage and conductivity.
Digital Object Identifier (DOI)
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