What question did this study set out to answer?

The aim is to explore in-situ photoluminescence for understanding and controlling perovskite film formation.

April 29, 2026

In‐Situ Photoluminescence for Perovskite Crystallization: Bridging Mechanistic Insights and Device Engineering Control (Adv. Mater. 24/2026)

HYHaoran YangNanjing University of Science and Technology HGHu GuoNanjing University of Science and Technology YWYue WangUniversity of Stuttgart

Key Points

The aim is to explore in-situ photoluminescence for understanding and controlling perovskite film formation.
Review of in-situ photoluminescence techniques
Analysis of nucleation, crystallization and defect formation
Discussion on processing conditions and additives affecting crystallization
In-situ PL effectively monitors perovskite film formation
Correlates processing conditions with spectral dynamics
Enhances understanding of phase evolution and interface engineering for better device performance

Abstract

In-Situ Photoluminescence for Perovskite Crystallization In their Review (DOI: 10.1002/adma.202518643), Yuanhang Cheng and co-workers highlight in-situ photoluminescence (PL) as a powerful, non-invasive probe for real-time monitoring of perovskite nucleation, crystallization, phase evolution, and defect formation. By correlating spectral dynamics with processing conditions, additives and interface engineering, in-situ PL enables mechanistic insight and control of film formation, accelerating scalable, high-performance perovskite photovoltaic manufacturing.

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