Recent Progress in Near-Infrared Organic Electroluminescent Materials

Area of Science:

• Materials Science
• Organic Electronics
• Photonics

Background:

• Near-infrared (NIR) light spans 650–2500 nm.
• NIR luminescent materials are crucial for OLEDs, fiber optics, sensing, and medical imaging.

Purpose of the Study:

• To review organic NIR electroluminescent materials developed in the last six years.
• To discuss small-molecule and polymer fluorescent materials, and platinum(II)/iridium(III) complex phosphorescent materials.
• To analyze limitations and future prospects in NIR luminescent material development.

Main Methods:

• Literature review of organic NIR electroluminescent materials.
• Categorization of materials into fluorescent and phosphorescent types.
• Analysis of small-molecule, polymer, and metal-complex based materials.

Main Results:

• Overview of recent advancements in organic NIR fluorescent and phosphorescent materials.
• Description of various material types including small molecules, polymers, and metal complexes.
• Identification of key challenges and opportunities in the field.

Conclusions:

• Organic NIR electroluminescent materials are rapidly advancing.
• Further research is needed to overcome current limitations for broader applications.
• Future prospects include enhanced material design for improved performance and novel applications.