Rapid Fire
Perovskite LEDs (PeLEDs)
- 25 Feb 2025
- 1 min read
India’s researchers developed a method to reduce anion migration in perovskite nanocrystals that can enable next-gen lighting and improve energy efficiency as lighting consumes nearly 20% of global electricity.
- Anion migration in perovskite nanocrystals causes color instability and limits their use in lighting.
- Perovskite LEDs (PeLEDs), made from perovskite nanocrystals, combine the advantages of Organic LEDs (OLEDs) & Quantum Dot LEDs (QLEDs), making them promising for next-generation lighting.
- PeLEDs combine the best features of OLEDs (flexibility, lightweight) and QLEDs (high color purity) while offering superior efficiency and cost-effectiveness.
Evolution of Lighting Technologies:
- Early Technology: From incandescent and fluorescent lamps to LEDs (invented in the 1960s).
- Breakthrough in 1993: Shuji Nakamura's team developed high-brightness blue LEDs, leading to energy-efficient white LEDs and winning the 2014 Nobel Prize in Physics.
- Current Technologies:
- OLEDs: Thin, flexible, but costly with shorter lifespans.
- QLEDs: Precise color control, durable, but toxic with resource scarcity concerns.
- Micro/Mini-LEDs: High brightness and stability but expensive to produce.
| Read More: Light Emitting Diodes (LED) |
