# Phase-homogeneous perovskite boosts tandem solar cell stability

Researchers have developed phase-homogeneous mixed halide perovskites that prevent performance-degrading phase segregation in tandem solar cells. Published in Nature, this material innovation addresses a key stability hurdle, potentially enabling more efficient and durable photovoltaic systems. This advance could accelerate the adoption of high-efficiency tandem solar panels for clean energy.

**Importance:** 3/5

## Sources

### Science
- [Nature](https://www.nature.com/articles/s41586-026-10929-2) — 2026-07-27