CPTI is now RadianX
About RadianX
Energy demand is rapidly increasing, especially on the edge, and current delivery methods (outlets, wires, batteries, the grid) can’t keep up. Light already reaches nearly every surface around us, indoors and out. Yet almost all of that energy goes unused while billions of devices depend on batteries, wiring, and centralized infrastructure to stay powered.
RadianX is changing that.
AlphaGlass™ turns ambient light into usable energy and can be integrated into the products and surfaces already around us.
An IoT device. A wearable. A robot. A building surface.
If light reaches it, it can become part of the energy system.
We are building toward a world where power is generated everywhere it is needed: distributed across the edge, integrated directly into products, and available without constant battery swaps or new wiring.
Energy everywhere. Power generated where it’s needed.
How we work
The technology is ambitious. We work accordingly.

Solve for the future we are trying to create,
not the limits of what exists today.

Put time and energy behind problems with
real technical and commercial consequence.

Take responsibility for the outcome.
Make decisions. Follow through.

Stay clear on the mission and priorities,
then give people room to move.

Surface what is not working. Go toward the hard
problem before it becomes the bigger one.

Move together. Be rigorous. Expect exceptional
work from yourself and from each other.
Where we work
Redwood City, California
California has always rewarded people willing to build what does not exist yet.
Semiconductors. Personal computing. Biotechnology. Advanced hardware.
Teams have shaped entire industries here by moving from improbable ideas to physical reality.
RadianX is part of that tradition.
In Redwood City, our materials science, electrical engineering, commercialization and product development teams work side by side. Ideas move quickly. Hardware gets built.
Energy abundance is next.

Team
RadianX brings together materials science, electrical engineering, manufacturing, operations, and product development around one goal: move perovskite from breakthrough technology into the products people use every day.
Backed by
RadianX is supported by investors and partners across climate technology, advanced manufacturing, and deep tech.

Careers
We look for engineers and operators who want real ownership, work across disciplines,
and are energized by turning difficult technology into something that works at scale.
We work together in person in Redwood City.
If you want to help make energy more abundant, distributed, and built into the world
around us, we want to hear from you.
Open roles
Help translate ambient-light energy harvesting into real product architectures, from power budgets and system design through integration and testing.
View Role >
Build the commercial engine around a new category of energy technology—from finding the right markets and customers to shaping how RadianX goes to market.
View Role >
RadianX is building the materials and manufacturing platform to put energy generation wherever light already exists.