Erik Hosler Discusses the Role of Materials Informatics in Discovering Qubit-Compatible Semiconductors

The discovery of new materials has long been a bottleneck in advancing semiconductor performance, especially in the emerging field of quantum computing. Traditional experimental methods are slow and labor-intensive, making it difficult to explore the vast space of possible compounds and structures. Erik Hosler, a leader in semiconductor technology and process innovation, sees how materials informatics is helping bridge that gap by applying data-driven techniques to accelerate the identification of qubit-compatible materials.

This approach combines high-throughput computing, machine learning and experimental validation to uncover materials with suitable properties for quantum devices. As a result, the pace of innovation in quantum-ready semiconductors is increasing, unlocking new design possibilities and reducing development time.

Why New Materials Are Critical to Qubit Development

Quantum systems depend on highly specific material properties that are not typically required in classical computing. Qubit platforms need materials with low defect density, high coherence retention, precise bandgaps and stability under cryogenic conditions. These characteristics determine how well a material can host and control quantum states.

Commonly used semiconductors like silicon and gallium arsenide are familiar, but newer platforms such as silicon carbide, indium antimonide and two-dimensional materials like hexagonal boron nitride are drawing interest for their quantum potential. Identifying and refining these candidates is essential for scalable qubit systems. However, traditional trial-and-error research methods are too slow to meet industry demand. Materials informatics brings speed and scalability to this challenge by allowing researchers to simulate, predict and screen new compounds before they are ever synthesized in the lab.

What Materials Informatics Brings to the Table

Materials informatics uses machine learning and computational modeling to predict physical and electronic properties based on atomic structure and environmental parameters. These models can quickly scan massive datasets to identify materials likely to exhibit desired traits for quantum behavior. For example, a machine learning algorithm can predict which combinations of elements and lattice structures are most likely to yield low dielectric loss or high spin-orbit coupling, both important for certain types of qubits. Researchers can then prioritize the most promising candidates for experimental testing.

Databases of known materials, such as the Materials Project or AFLOW, are mined to create training sets for predictive algorithms. As new materials are discovered and tested, their properties feed back into the system, improving the accuracy of future predictions. This iterative loop allows researchers to move faster, make more informed decisions and increase the probability of success in quantum materials discovery.

Screening for Quantum-Relevant Properties

Not all material properties matter equally for qubit performance. Materials informatics platforms are being tuned to focus on parameters directly relevant to quantum behavior. These include coherence time, spin relaxation, interface stability and superconducting compatibility.

Predictive models simulate how impurities, lattice mismatches or defects may influence qubit reliability. These insights help researchers select substrates, barriers and interfaces that reduce decoherence and improve performance. Quantum dots, topological qubits and superconducting circuits all benefit from customized materials pipelines that begin with informatics. Thermal properties are another focus area. Quantum devices operate at cryogenic temperatures, so materials must behave predictably and remain structurally sound near absolute zero. Informatics tools simulate these conditions to weed out candidates that may degrade under thermal stress.

Enabling Qubit Material Integration with CMOS

One of the biggest challenges in quantum device development is integrating novel quantum materials with existing semiconductor manufacturing infrastructure. Materials informatics is helping address this by identifying compounds that not only exhibit quantum potential but also align with CMOS compatibility. This means discovering materials that can be deposited using existing tools, do not contaminate foundry environments and are thermally stable during process steps. The ability to predict how a candidate will interact with common semiconductor stacks, such as silicon oxides or nitrides, is critical for adoption at scale.

Erik Hosler observes, “Working with new materials like GaN, SiC, graphene and other two-dimensional materials is unlocking new potential in semiconductor fabrication, and with it, new semiconductor equipment platforms will likely be required, like accelerator-based light sources.” His insight points to a growing need for the semiconductor industry to expand its toolkit while maintaining control and predictability in materials selection. By using informatics to find materials that bridge classical and quantum domains, researchers can shorten the integration gap and bring quantum components closer to volume manufacturing.

Accelerating Alloy and Heterostructure Development

Quantum devices often require custom alloys or layered heterostructures with precise interface behavior. Materials informatics helps design these combinations by modeling atomic interactions and energy band alignment across different layers. For instance, predictive tools can suggest which alloying elements improve mobility or suppress spin noise without introducing lattice strain.

Layered materials like transition metal dichalcogenides can be virtually tested for interlayer coupling and tunneling resistance before experimental synthesis. These capabilities allow design teams to co-optimize electronic performance, thermal behavior and qubit coherence during the concept phase. The result is faster prototyping, fewer experimental failures and greater alignment between design and material science.

Integrating Informatics into the Quantum R&D Workflow

Materials informatics must be embedded into the full quantum device development cycle to be most effective. From early simulation to in-line process control, data tools guide decisions about what materials to use, how to process them and how to predict their performance in real-world devices. These platforms are being integrated with electronic design automation and quantum simulation environments. This allows the co-design of devices and materials, where engineers can test qubit layouts and material choices simultaneously, optimizing for fidelity, scalability and manufacturability.

Foundries and quantum startups are also beginning to use informatics for supply chain planning and risk reduction. By simulating yield and stability for different materials, they can forecast which supply choices are most likely to meet quality and delivery targets. In the future, cloud-based informatics tools may allow real-time material evaluation during fabrication, closing the loop between deposition, metrology and quantum performance in a single feedback system.

Unlocking the Next Generation of Quantum Materials

As the need for specialized quantum semiconductors grows, the old model of slow discovery and incremental testing is giving way to an intelligent, accelerated approach. Materials informatics is not only speeding up the process of identifying new compounds but also improving the precision with which they are engineered, integrated and scaled. The ability to discover and refine qubit-compatible materials using machine learning and simulation is rapidly becoming a competitive differentiator in the race toward practical quantum systems.

As tools become more accurate and accessible, they will empower researchers and manufacturers to innovate faster, with fewer dead ends and greater technical insight. By combining digital exploration with physical experimentation, materials informatics is opening the door to materials that were previously overlooked or unreachable. These discoveries will shape the next generation of quantum computing, sensor and communication technologies.