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Updated: May 31, 2026

Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance

Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance

Published on: February 27, 2017

Interference Crystallization Rebalances Facet Competition for Efficient and Stable Perovskite Solar Cells.

Wenna Huang^1,2,3, Haibing Wang¹, Kun Dai¹

¹School of Electronics and Electrical Engineering and State Key Laboratory of New Textile Materials and Advanced Processing, Wuhan Textile University, Wuhan, China.

Advanced Materials (Deerfield Beach, Fla.)

|May 29, 2026

Summary

We developed an interference crystallization strategy to control crystal orientation in perovskite solar cells. This method balances (100) and (111) facets, improving efficiency and stability.

Keywords:

crystallization facet passivation perovskite solar cell

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Area of Science:

Materials Science
Renewable Energy
Crystallography

Background:

Crystallographic orientation is crucial for perovskite solar cell performance, influencing strain, defects, and stability.
Sequential deposition methods struggle to control orientation due to the natural dominance of (100) facets.

Purpose of the Study:

To develop a novel strategy for controlling crystallographic orientation in perovskite solar cells fabricated via sequential deposition.
To investigate the impact of modulated A-site intercalation kinetics on facet competition and overall device performance.

Main Methods:

An interference crystallization strategy was employed using a sulfonate-based additive in the PbI2 precursor.
The additive selectively perturbs A-site (formamidinium ion, FA+) intercalation kinetics based on surface facet.
This modulation leads to a balanced distribution of (100) and (111) crystal facets.

Main Results:

A balanced (100)/(111) orientation distribution was achieved, reducing lattice strain.
The strategy integrated the optoelectronic benefits of (100) facets with the moisture tolerance of (111) facets.
Devices demonstrated a power conversion efficiency of 26.41% and excellent long-term stability (>1300 hours).

Conclusions:

Interference-mediated crystallization offers a viable pathway for precise orientation regulation in sequentially deposited perovskites.
This approach enhances perovskite solar cell efficiency and operational stability by optimizing crystallographic texture.
The strategy effectively passivates defects and suppresses non-radiative recombination through additive surface adsorption.