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Perovskite Materials for Light-Emitting Diodes and Lasers
Sjoerd A Veldhuis1, Pablo P Boix1, Natalia Yantara1
1Energy Research Institute at Nanyang Technological University (ERI@N), Research Techno Plaza, X-Frontier Block Level 5, 50 Nanyang Drive, Singapore, 637553, Singapore.
Advanced Materials (Deerfield Beach, Fla.)
|May 24, 2016
Summary
Organic-inorganic hybrid perovskites show great promise for optoelectronic applications, achieving high efficiencies in LEDs and lasers. Further research into material composition and device architecture is key for market viability.
Area of Science:
- Materials Science
- Optoelectronics
- Solid-State Physics
Background:
- Organic-inorganic hybrid perovskites are a rapidly advancing class of optoelectronic materials.
- They have demonstrated high photovoltaic efficiencies and promising performance in light-emitting devices.
- Significant progress has been made in perovskite light-emitting diodes (PeLEDs) and lasers.
Purpose of the Study:
- To review the recent advancements in perovskite light-emitting devices and lasers.
- To address the key challenges in materials development, device fabrication, and operational stability.
- To provide an outlook on the market viability of perovskite light-emitting devices.
Main Methods:
- Review of recent literature on perovskite optoelectronic devices.
- Analysis of material properties, device performance metrics (efficiency, brightness), and fabrication techniques.
- Discussion of compositional and structural variations, including low-dimensionality perovskites and nanostructures.
Main Results:
- Record photovoltaic efficiencies of 22.1% have been achieved.
- Perovskite materials exhibit photoluminescence quantum yields near 100%.
- PeLEDs have achieved external quantum efficiencies of 8% and current efficiencies of 43 cd A(-1), rapidly surpassing organic light-emitting diodes (OLEDs) in performance.
Conclusions:
- Perovskite light-emitting devices have shown remarkable progress in a short period.
- Future advancements depend on compositional and structural engineering, charge-transport materials, and innovative device processing.
- Addressing challenges in materials development, fabrication, and stability is crucial for industrial relevance and market viability.
