# Light management in monolithic all-perovskite tandem solar cells

## TL;DR

This review discusses how optimizing light management can improve the efficiency of all-perovskite tandem solar cells.

## Contribution

The paper provides a comprehensive summary of recent advances in light management for monolithic all-perovskite tandem solar cells.

## Key findings

- Light management is crucial for enhancing the power conversion efficiency of all-perovskite tandem solar cells.
- Optical challenges and current-matching conditions are key factors affecting performance.
- Strategies for light trapping and utilization are explored for future improvements.

## Abstract

All-perovskite tandem solar cells represent a promising strategy for breaking the Shockley-Queisser limits inherent in single-junction solar cells. Reasonable light management and optical design are necessary for all-perovskite tandem solar cells to improve power conversion efficiency. In this review, the recent progresses in light management for monolithic all-perovskite tandem solar cells are summarized comprehensively. The current-matching conditions, optical challenges, and potential development trajectories for all-perovskite tandem solar cells are investigated. It includes key optical losses, enhancements and strategies for light trapping and light utilization. Ultimately, forward-looking perspectives on future developments are presented. This review aims to offer valuable insights and practical suggestions for improving power conversion efficiency of all-perovskite tandem solar cells from light management techniques.

Summary diagram of light management in monolithic all-perovskite tandem solar cells.