Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras
Method of Formation of Multi-component Organic Layer for an Organic Optoelectronic Device
Categories for this Invention
Category- Electronics & Circuits, Optoelectronic Devices.
Applications– LEDs, OLED Displays, Organic Solar Cells, Flexible Electronics, Photodetectors, Bioelectronics, Smart Packaging
Industry- Optoelectronics and Electronics Manufacturing, Consumer Electronics
Market – Optoelectronics Market size is expected to reach USD 43.32 billion in 2024 and grow at a CAGR of 5.7% to reach USD 57.15 billion by 2029.
Image Gallery
Problem Statement
- High cost and complex synthesis: Organic electronic devices require high-purity organic materials and complex multi-layer structures, leading to increased production costs.
- Inefficient fabrication process: The Vacuum Thermal Evaporation (VTE) technique has limitations, such as long process times, poor material utilization, and cross-contamination issues, resulting in decreased efficiency and higher production costs.
- Device performance and lifetime: Challenges in accurately controlling material deposition and preventing contamination lead to shorter device lifetimes and inconsistent performance.
Technology
Innovative Organic Thin Film Fabrication:
- The invention introduces a rapid sublimation transfer method for creating uniform and homogeneous multicomponent organic thin film layers on optoelectronic devices using optical irradiation heating, ensuring precise feature formation without the need for masks.
Layer-by-Layer Sequential Deposition:
- The method involves depositing each organic component sequentially in layers on a source substrate under high vacuum conditions, leveraging dissimilar sublimation properties to maintain uniformity and consistency in the final product.
Patterning and Transfer Process:
- The process includes a two-step approach—initial patterning by selectively removing material from specific regions using optical irradiation, followed by transferring the patterned layer to the product substrate in a vacuum chamber, ensuring accurate alignment and uniform layer thickness.
Key Features / Value Proposition
Innovative Fabrication Technique:
- Rapid sublimation transfer method enhances the production efficiency of organic thin films.
Precision and Uniformity:
- Optical irradiation heating ensures precise and uniform multicomponent layer formation.
Sequential Deposition Process:
- Layer-by-layer sequential deposition maintains consistency and quality in optoelectronic devices.
Advanced Patterning:
- Optical irradiation-based patterning allows for accurate and mask-free feature formation.
Versatile Application Range:
- Suitable for OLEDs, organic solar cells, transistors, and photodetectors, expanding market applicability.
Comparable Performance:
- Demonstrates photoluminescence properties on par with traditional co-evaporation techniques, ensuring competitive product quality.
Questions about this Technology?
Contact For Licensing
sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in
Research Lab
Prof. Debdutta Ray
Prof. G. Rajeswaran
Prof. Soumya Dutta
Department of Electrical Engineering
Intellectual Property
- IITM IDF Ref. 2509
- IN 537194 – Patent Granted
Technology Readiness Level
TRL – 4
Technology validated in lab scale.