Executive Brief
I2Cool Limited is a high-tech spin-off from the City University of Hong Kong specializing in passive radiative cooling (PRC). Their core technology, iPaint, utilizes a specific material composition to achieve sub-ambient cooling by reflecting 95%+ of solar radiation and emitting thermal energy through the atmospheric "sky window" (8-13 µm). As they transition from paint-based solutions to "novel, diversified energy-saving products," they face challenges in material durability, thermal transport efficiency at the substrate interface, and maximizing mid-infrared emissivity.
Strategic Fit & Lead Score
Lead Score: 68/100
- Why this Score? While I2Cool currently focuses on polymer-based paints, their roadmap includes "diversified energy-saving products." Diamond is the ultimate material for thermal management and has unique optical properties in the mid-infrared (MIR) range. 6C can help I2Cool move from "paint" to "performance components" where standard coatings fail due to UV degradation or low thermal conductivity.
6C Solutions Proposal
| Application Area | 6C Solution | Technical Value Prop |
|---|---|---|
| Next-Gen Radiative Fillers | PCD Micro-Powders & Seeds | Polycrystalline Diamond (PCD) has exceptional transparency in the visible spectrum but high emissivity in specific IR bands. Using PCD as a filler in iPaint can enhance structural durability and thermal bleed-off compared to standard ceramic fillers. |
| High-Endurance Surfaces | Direct MPCVD Diamond Coating | For harsh environments (e.g., desert solar farms or chemical plants), 6C can deposit a thin nanocrystalline diamond layer over cooling substrates. This provides "forever" UV resistance and sand-abrasion protection without blocking the 8-13 µm thermal emission window. |
| PV Cell Cooling | Diamond Heat Spreaders | I2Cool is moving into energy transition. By integrating 6C's PCD wafers (up to 5") behind solar cells, we can facilitate rapid heat transfer to I2Cool’s radiative surfaces, preventing PV efficiency drop-off due to overheating. |
| R&D Diversification | Custom MPCVD Reactor Build | To develop "novel products," I2Cool needs to experiment with doped carbon structures. 6C can provide a turnkey MPCVD system with tailored process recipes for growing cooling-optimized carbon films in-house. |
| Atmospheric Sensing | BDD Electrochemical Sensors | Part of I2Cool’s "quality of life" mission. Boron Doped Diamond (BDD) electrodes can be integrated into building cooling systems to monitor water quality in cooling towers or detect environmental pollutants with zero corrosion. |
Engagement Hooks
- Technical Question: "As I2Cool expands into structural cooling components, how are you addressing the thermal resistance at the interface between your radiative coating and high-heat-flux substrates like metal or silicon? Could a CVD diamond interface layer bridge the gap between reflection and conduction?"
- Value Statement: "6C can transform I2Cool's passive cooling technology from a sacrificial paint into a permanent, diamond-hardened engineering component that survives extreme UV and abrasive environments while maintaining maximum MIR emissivity."