# Cheap and efficient solar cells

Identifying new materials that increase solar cell efficiency.

The urgent need for energy abundance and self-sufficiency is driving the search for a new generation of solar cells that can break through current efficiency barriers.

## Problem

To develop next-generation solar cells, scientists are leveraging a process called **singlet fission**, where specially designed organic materials could **significantly boost solar cell efficiency**. This is a major challenge, as the design space is large, and current simulations — even on today's supercomputers — cannot handle the complexity of atomic-scale interactions.

## Solution

Our breakthrough **quantum algorithm efficiently simulates electron-nuclear dynamics** in singlet fission, requiring only a few hundred logical qubits. It evaluates a candidate compound **in a matter of hours**, while delivering the accuracy needed to guide materials design.

We expect Xanadu's new quantum algorithm to serve as a powerful design tool, enabling scientists to engineer novel ultra-high-efficiency solar cells to power a sustainable future.

## Learn More

- [Material discovery reborn: Applications of quantum computing in quantum dynamics](https://pennylane.ai/blog/2025/02/material-discovery-quantum-dynamics)  
[February 3, 2025](https://pennylane.ai/blog/2025/02/material-discovery-quantum-dynamics)
- [Quantum algorithm for vibronic dynamics: case study on singlet fission solar cell design](https://iopscience.iop.org/article/10.1088/2058-9565/ae0828)  
[September 29, 2025](https://iopscience.iop.org/article/10.1088/2058-9565/ae0828)

## Where quantum meets industry

Xanadu is focused on building useful quantum computers to solve the world's most intractable computational problems.

## Advance your applications with quantum

Partner with our leading researchers to explore how our technology can address your most demanding applications.