What are the challenges linked to the development of Perovskite Solar Cells?

Introduction

Perovskite solar cells are one of the most exciting developments in solar energy research.

In lab settings, they have rapidly reached power conversion efficiencies similar to commercial silicon solar panels, and they can potentially be made using simpler and cheaper processes.

Despite this, moving from the lab to real-world use has proven to be challenging with several key issues still need to be solved before we see them widely deployed.

Challenges

The biggest challenges linked to for perovskite solar cells are:

1. Stability
   • Under real environmental conditions (like sunlight, humidity, oxygen, and heat), perovskite materials tend to degrade quickly
   • With degradation, the performance drops over time, and devices often only last a few months instead of the decades as expected from commercial solar panels
2. Toxicity
   • High-performance perovskite cells contain lead(normally in small amounts)
   • Finding safer, lead-free alternative or effective ways to contain lead without compromising performance is in works and need to be figured out
3. Scaling Up
   • Current techniques that work well for tiny cells do not always produce consistent quality when applied over large areas, and new methods need to be reliable, repeatable, and cost-effective for industrial production
4. Finally, reducing manufacturing and material costs while maintaining performance is an important hurdle. Some current designs use expensive components or processes that would make large-scale production uneconomical unless they are optimised further

Summary

Perovskite solar cells hold great promise because of their efficiency and low-cost potential.

Inorder to tap into these attributes – issues with stability, environmental impact, scalability, and cost need to be solved before they can become a mainstream solar technology.