Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Icariin alleviates ovariectomy-induced osteoporosis by promoting M2 macrophage polarization and suppressing osteoclast activation.

Cytokine·2026
Same author

An Integrated Study Based on UPLC-QTOF/MS Network Pharmacology and In Vivo Validation of the Anti-Obesity Effects of the 60% Ethanol-Eluted Fraction from <i>Rheum tanguticum</i>.

Plants (Basel, Switzerland)·2026
Same author

Structural Homology Solid Additives Enhancing Crystallization Thermodynamics for Constructing Ordered Fibrillar Network Toward 20.22% Efficiency Layer-by-Layer Organic Solar Cells.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

A Comprehensive Strategy for Characterizing Metabolites and Metabolic Profile in Rat Urine and Feces Following Oral Administration of Huachansu Tablets Based on UPLC-ESI-QTOF/MS<sup>E</sup>.

Biomedical chromatography : BMC·2026
Same author

Stable and Low-Cost Organic Photovoltaics Without Conjugated Donors.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Hydrogen-Bond-Mediated Solid Additives Enabling Enhanced Bi-Continuous Interpenetrating Network for 20.29% Efficiency Layer-by-Layer Organic Solar Cells.

Small (Weinheim an der Bergstrasse, Germany)·2026

Related Experiment Video

Updated: Jul 10, 2026

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films
08:12

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

Published on: September 8, 2017

Molecular-Extrusion-Driven Halogen Homogenization for Efficient Perovskite-Silicon Tandem Solar Cells.

Yu Chen1, Yang Peng1, Chuan Luo1

  • 1College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, P. R. China.

Angewandte Chemie (International Ed. in English)
|July 9, 2026
PubMed
Summary

A new passivation strategy using bromomethyl-triphenylphosphonium bromide (TPB-Br) effectively prevents phase segregation in wide-bandgap perovskites. This leads to improved stability and high efficiency in perovskite solar cells and tandem devices.

Keywords:
efficiencymolecular extrusionperovskite/silicon tandemphase segregationwide‐bandgap perovskite

More Related Videos

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

Polycrystalline Silicon Thin-film Solar cells with Plasmonic-enhanced Light-trapping
09:32

Polycrystalline Silicon Thin-film Solar cells with Plasmonic-enhanced Light-trapping

Published on: July 2, 2012

Related Experiment Videos

Last Updated: Jul 10, 2026

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films
08:12

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

Published on: September 8, 2017

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

Polycrystalline Silicon Thin-film Solar cells with Plasmonic-enhanced Light-trapping
09:32

Polycrystalline Silicon Thin-film Solar cells with Plasmonic-enhanced Light-trapping

Published on: July 2, 2012

Area of Science:

  • Materials Science
  • Solid-State Chemistry
  • Photovoltaics

Background:

  • Phase segregation is a major challenge in wide-bandgap perovskites, leading to defects and reduced device performance.
  • Nonradiative recombination at defects significantly limits the efficiency of perovskite solar cells.
  • Achieving stable and high-performing wide-bandgap perovskite materials is crucial for advanced solar energy applications.

Purpose of the Study:

  • To develop a molecular-extrusion-driven passivation strategy for wide-bandgap perovskites.
  • To mitigate phase segregation and suppress nonradiative recombination in perovskite films.
  • To enhance the efficiency and long-term stability of perovskite solar cells and perovskite/silicon tandem solar cells.

Main Methods:

  • Introduction of bromomethyl-triphenylphosphonium bromide (TPB-Br) into perovskite precursors.
  • Molecular extrusion to achieve halogen homogenization and defect passivation.
  • Fabrication and characterization of wide-bandgap perovskite films and tandem solar cells.

Main Results:

  • High-quality wide-bandgap perovskite films with high crystallinity, low defect density, and reduced strain were achieved.
  • The passivation strategy significantly mitigated phase segregation and suppressed nonradiative recombination.
  • Champion perovskite sub-cells reached 23.63% PCE, and tandem cells achieved 32.03% PCE.
  • Unencapsulated devices maintained over 80% of their initial PCE after 1200 hours of storage, thermal aging, and light soaking.

Conclusions:

  • The molecular-extrusion-driven passivation strategy is effective for preparing high-quality wide-bandgap perovskite films.
  • This approach significantly improves the efficiency and operational stability of perovskite solar cells and tandem devices.
  • The findings demonstrate a feasible route towards stable and efficient perovskite-based photovoltaics.