A Novel PiGF@Diamond Color Converter with a Record Thermal Conductivity for Laser‐Driven Projection Display (Adv. Mater. 39/2024)
At a Glance
Section titled “At a Glance”| Metadata | Details |
|---|---|
| Publication Date | 2024-09-01 |
| Journal | Advanced Materials |
| Authors | Zikang Yu, Jiuzhou Zhao, Zezhong Yang, Yun Mou, Hongjin Zhang |
| Institutions | China Jiliang University, Hunan University of Science and Technology |
| Citations | 2 |
| Analysis | Full AI Review Included |
Technical Documentation & Analysis: PiGF@DIAMOND Color Converter
Section titled “Technical Documentation & Analysis: PiGF@DIAMOND Color Converter”This document analyzes the requirements for the PiGF@DIAMOND Color Converter architecture, focusing on the critical role of the diamond substrate, and outlines how 6CCVD’s specialized MPCVD diamond materials and processing capabilities can support and advance this research area.
Executive Summary
Section titled “Executive Summary”The research demonstrates a breakthrough in thermal management for high-power laser-driven displays by utilizing a transparent diamond substrate. The core value proposition relies entirely on diamond’s superior thermal properties to prevent luminescence saturation.
- Thermal Management Solution: A novel Phosphor-in-Glass Film on Diamond (PiGF@diamond) architecture was developed to mitigate thermal quenching in high-flux color converters.
- Record Thermal Performance: The composite structure achieved a record thermal conductivity of 599.3 W m-1 K-1, validating diamond as the premier heat spreader for optical systems.
- High Power Handling: This thermal efficiency allowed the device to sustain extreme laser power densities up to 40.24 W mm-2.
- Saturation Avoidance: A maximum luminous flux of 5602 lm was achieved without observable luminescence saturation, a critical limitation in conventional phosphor systems.
- Application Focus: The results confirm the viability of MPCVD diamond substrates for scaling high-color rendering, high-brightness laser-driven projection displays.
- 6CCVD Capability: 6CCVD specializes in the custom fabrication of high-purity, optical-grade Single Crystal Diamond (SCD) and Polycrystalline Diamond (PCD) substrates required for replicating and optimizing this technology.
Technical Specifications
Section titled “Technical Specifications”The following hard data points were extracted from the research summary, highlighting the performance metrics achieved by the PiGF@diamond color converter.
| Parameter | Value | Unit | Context |
|---|---|---|---|
| Article Reference | 2406147 | N/A | Advanced Materials Publication |
| Thermal Conductivity (TC) | 599.3 | W m-1 K-1 | Record value for the PiGF@diamond composite structure |
| Max Laser Power Density | 40.24 | W mm-2 | Maximum power density sustained without failure |
| Max Luminous Flux | 5602 | lm | Luminous output achieved |
| Luminescence Status | None | Saturation | Key achievement enabled by thermal management |
| Primary Application | High-Color Rendering | N/A | Laser-Driven Projection Display |
| Substrate Requirement | Transparent Diamond | N/A | Essential component for heat dissipation |
Key Methodologies
Section titled “Key Methodologies”The experiment centered on integrating a high-efficiency phosphor material with the world’s most thermally conductive substrate.
- Substrate Selection: Utilization of transparent, high-purity diamond material to serve as the primary heat dissipation platform.
- Film Deposition: Application of a Phosphor-in-Glass Film (PiGF) onto the transparent diamond substrate surface.
- Architecture Design: Creation of the PiGF@diamond composite structure, optimizing the interface for maximum thermal transfer efficiency.
- High-Power Testing: Subjecting the composite device to high-intensity laser irradiation to evaluate thermal stability and luminous output under extreme power density (up to 40.24 W mm-2).
- Performance Validation: Measurement of thermal conductivity and luminous flux to confirm the suppression of thermal quenching and luminescence saturation.
6CCVD Solutions & Capabilities
Section titled “6CCVD Solutions & Capabilities”6CCVD is uniquely positioned to supply the high-quality MPCVD diamond substrates necessary for the industrialization and further research of high-power optical devices like the PiGF@diamond color converter. Our capabilities ensure material purity, dimensional precision, and surface quality critical for optical applications.
Applicable Materials
Section titled “Applicable Materials”To achieve the reported thermal performance (599.3 W m-1 K-1 for the composite), the diamond substrate must possess extremely high intrinsic thermal conductivity and optical transparency.
| 6CCVD Material | Description | Relevance to PiGF@diamond |
|---|---|---|
| Optical Grade SCD | High-purity Single Crystal Diamond. TC > 2000 W m-1 K-1. | Ideal for maximum thermal performance and highest transparency required in projection displays. |
| Optical Grade PCD | High-quality Polycrystalline Diamond. Excellent transparency and thermal properties (TC up to 1800 W m-1 K-1). | Recommended for large-area applications (up to 125mm) where cost-efficiency and scale are critical. |
Customization Potential
Section titled “Customization Potential”The integration of the PiGF film requires precise dimensional control and superior surface preparation. 6CCVD offers comprehensive customization services:
- Custom Dimensions: We provide diamond plates and wafers up to 125mm (PCD) and custom sizes for SCD, allowing researchers to scale up from lab prototypes to commercial display components.
- Thickness Control: SCD and PCD substrates are available in precise thicknesses ranging from 0.1µm to 500µm, enabling optimization of thermal resistance and optical path length. Substrates up to 10mm are also available.
- Ultra-Low Roughness Polishing: For optical applications, surface quality is paramount. We guarantee:
- SCD: Surface roughness Ra < 1nm.
- Inch-size PCD: Surface roughness Ra < 5nm.
- Metalization Services: While this paper focuses on the PiGF interface, 6CCVD offers in-house metalization (Au, Pt, Pd, Ti, W, Cu) for researchers requiring integrated thermal contacts or electrical pathways on the diamond substrate.
Engineering Support
Section titled “Engineering Support”6CCVD’s in-house PhD team provides expert consultation on material selection and integration challenges. We can assist engineers and scientists working on similar Laser-Driven Projection Display and High-Power Optical Thermal Management projects by:
- Optimizing diamond grade selection based on required thermal conductivity and optical transmission window.
- Advising on optimal substrate thickness to minimize thermal boundary resistance (TBR) at the PiGF interface.
- Providing global shipping (DDU default, DDP available) to ensure rapid delivery of critical components worldwide.
For custom specifications or material consultation, visit 6ccvd.com or contact our engineering team directly.