• Precise tunability of emission wavelengths through size control 

• Excellent color purity and saturation with narrow Full Width at Half Maximum (FWHM) 

• Cost-effective and large-area scalability via solution-based processing 

• Capability of achieving high luminance/brightness 

• Feasibility of multi-layered device architecture design 

Our laboratory focuses on the precision synthesis of colloidal quantum dots (QDs) with superior optical properties and structural stability. We primarily utilize Hot-injection and Heating-up methods to achieve highly monodisperse nanocrystals.

Indium Phosphide (InP) QDs (Cadmium-free)

We are pioneering the development of InP QDs as a next-generation, environmentally friendly alternative to heavy-metal-based materials.

• Environmentally Friendly: Compliant with RoHS regulations, making them ideal for consumer electronics and displays.

• Quantum Confinement Effect: Stronger confinement effects due to the large Bohr exciton radius of InP (~10nm), allowing for distinct color control.

• Advanced Precursor Control: Specialized expertise in managing highly reactive precursors to prevent oxidation and ensure high purity.

Our Research: QLED Architecture & Optimization We develop high-efficiency, high-purity, and long-lifetime Quantum-dot Light-Emitting Diodes (QLEDs) through advanced interface engineering.

• 1. Solution-Processed Architecture Precise, nanoscale deposition of multi-layered structures (HTL, ETL, EML) utilizing spin-coating and orthogonal solvent engineering to ensure structural integrity.

• 2. Vacuum Deposition & Encapsulation High-vacuum thermal evaporation for stable metal cathodes (e.g., Al, Ag) to optimize charge injection, combined with robust encapsulation to extend device lifetime (T95/T50).

• 3. Optoelectronic Analysis Comprehensive evaluation of QLED performance, including luminous efficiency (EQE, cd/A, lm/W) and spectral purity (EL spectra, precise CIE color coordinates).