Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras
White Light Emission From Single Semiconductor Material Based On Trivalent Mixed Halide Double Perovskites
Categories for this Invention
Categories: Electronics & Circuits | Photonics
Industry: Semiconductor Materials, Solid-State Lighting (SSL) Technology
Application: White Light Emitting Devices
Market: The global Energy Efficient Lighting market size was valued at $53.98 B in 2023 and is expected to touch $93.12 B by 2030 growing at 8.1% CAGR in the forecasted period.
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Problem Statement
- Current methods for making white light devices involve complicate manufacturing process using multiple materials.
- Existing materials have problems like instability and inconsistency, making it hard to create reliable white light devices.
- Many potential materials cannot be made in large amount, limiting mass production use.
- Traditional white light production techniques are not energy-efficient.
- Current lighting methods contribute to pollution without any optimal result production.
- Thus, Developing better white light devices is important for sustainability.
- Hence, the present patent disclosure is needed to improve energy efficiency and enhance reliability of white light emitting devices by providing single semiconductor material capable streamline manufacturing of emitting white light.
Technology
The instant technology disclosure encompasses a semiconductor material based on trivalent mixed halide double perovskites for white light emission & methods for thin film deposition and device fabrication.
- The technology involves a semiconductor compound based on trivalent mixed halide double perovskites, with a specific formula (Cs2AgM11-xM2xCl6).
- This compound emits white light efficiently, making it suitable for lighting applications.
- The compound can be synthesized using a hydrothermal method, producing powder, single crystal, or thin film forms.
- Thin films of the compound can be deposited on conducting or semiconducting substrates using electrophoretic deposition or dip coating methods.
- The compound, when combined with transparent polymers, can be used to fabricate white light-emitting devices, like LEDs, through dip coating processes.
Key Features / Value Proposition
- Efficiency: Provides a single semiconductor material for white light emission in simple processes.
- Energy Savings: Enhances energy efficiency in lighting applications, reducing electricity consumption.
- Reliability: Offers stable and reproducible performance, improving the longevity of lighting devices.
- Environmental Impact: Reduces environmental footprint through lower energy consumption.
- Cost-efficiency: Reduces manufacturing costs by streamlining processes and utilizing fewer materials, resulting in more affordable white light emitting devices.
- Versatility: Applicable in residential, commercial, industrial, automotive, healthcare, displays, etc.
Questions about this Technology?
Contact For Licensing
sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in
Research Lab
Prof. Aravind Kumar Chandiran
Department of Chemical Engineering.
Intellectual Property
- IITM IDF No.: 1906 | IP No.: 493546 (Granted)
- IITM IDF No.: 2111 | IP No.: 508581 (Granted)
- PCT: PCT/IN2020/050951
Technology Readiness Level
TRL – 4
Experimentally validated in lab.