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Related Experiment Video

Updated: Mar 16, 2026

Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance
11:38

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

Published on: February 27, 2017

19.1K

Ambient Engineering for High-Performance Organic-Inorganic Perovskite Hybrid Solar Cells.

Jiabin Huang1, Xuegong Yu1, Jiangsheng Xie1

  • 1State Key Laboratory of Silicon Materials and School of Materials Science & Engineering, Zhejiang University , Hangzhou 310027, China.

ACS Applied Materials & Interfaces
|August 5, 2016
PubMed
Summary

Controlling the fabrication environment is key for high-performance perovskite solar cells. An ambient chlorobenzene (CBZ) atmosphere significantly improves perovskite film quality and device efficiency by optimizing grain growth.

Keywords:
ambiencegrain growthmorphologyperovskite solar cellsreproducibility

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Area of Science:

  • Materials Science
  • Renewable Energy
  • Photovoltaics

Background:

  • Solvent evaporation during perovskite film fabrication critically impacts film morphology and properties.
  • Understanding the influence of organic solvent atmospheres is crucial for optimizing perovskite solar cell performance.

Purpose of the Study:

  • To investigate the effect of different organic solvent atmospheres (N,N-dimethylformamide (DMF), dimethyl sulfoxide (DMSO), and chlorobenzene (CBZ)) on perovskite film formation.
  • To determine the optimal ambient atmosphere for enhancing the efficiency of perovskite solar cells.

Main Methods:

  • Fabrication of perovskite films using a two-step sequential deposition method.
  • Introduction of various organic solvent atmospheres (DMF, DMSO, CBZ) during film processing.
  • Characterization of perovskite film morphology and properties.
  • Performance evaluation of fabricated perovskite solar cells.

Main Results:

  • An ambient chlorobenzene (CBZ) atmosphere was found to be favorable for controlling the nucleation and growth of methylammonium lead iodide (CH3NH3PbI3) grains.
  • Perovskite solar cells processed in ambient CBZ showed a significant average efficiency improvement of 35% compared to those processed in air.
  • The best performing perovskite solar cells achieved an efficiency of 14.55% when fabricated under an ambient CBZ atmosphere, up from 10.65% without it.
  • CBZ atmosphere led to larger CH3NH3PbI3 grains, reducing grain boundary density and recombination centers, thus increasing short-circuit current density.

Conclusions:

  • Ambient atmosphere engineering, specifically using chlorobenzene (CBZ), is a vital strategy for improving perovskite film quality and solar cell efficiency.
  • Optimized grain growth under CBZ ambience leads to reduced charge carrier recombination and enhanced photovoltaic performance.
  • This work provides significant insights into controlling perovskite film morphology for highly efficient perovskite solar cells.