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

Highly Selective and Modular Assembly of Densely Substituted Tetrahydrofurans.

Journal of the American Chemical Society·2026
Same author

Morphological and chemical changes in Cd-free colloidal QD-LEDs during operation.

Science advances·2026
Same author

Reactions of Strained Cycloalkanes with Radicals and Diradicaloids: The Roles of Diradical Character and Strain Release.

Journal of the American Chemical Society·2026
Same author

Molecular Lubricant Mitigates Self-Assembled Monolayer Aggregation in Perovskite Photovoltaics.

Angewandte Chemie (International ed. in English)·2026
Same author

Determining Quantum Mechanical Methods Suitable for Quantitative Modeling of Hydrogen Atom Transfer by Halogen Atoms.

Journal of chemical theory and computation·2026
Same author

Cobaloxime-catalysed regiodivergent hydrogen atom transfer for alkenyl and allylic carbamoylation with branched alkenes.

Nature communications·2026

Related Experiment Video

Updated: Oct 13, 2025

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

9.7K

Performance-limiting formation dynamics in mixed-halide perovskites.

Tianyi Huang1,2, Shaun Tan1,2, Selbi Nuryyeva3

  • 1Department of Materials Science and Engineering and California NanoSystems Institute, University of California Los Angeles, Los Angeles, CA 90095, USA.

Science Advances
|November 10, 2021
PubMed
Summary
This summary is machine-generated.

Wide-bandgap mixed-halide perovskites are key for efficient tandem solar cells, but voltage deficits limit performance. This study reveals bromide inclusion drives halide homogenization during growth, impacting defect physics and optoelectronic properties.

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

18.7K
Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells
08:30

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Published on: March 19, 2017

16.8K

Related Experiment Videos

Last Updated: Oct 13, 2025

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

9.7K
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

18.7K
Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells
08:30

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Published on: March 19, 2017

16.8K

Area of Science:

  • Materials Science
  • Photovoltaics
  • Solid-State Chemistry

Background:

  • Wide-bandgap (WBG) mixed-halide perovskites are crucial for high-efficiency perovskite tandem solar cells, achieving over 29% power conversion efficiency.
  • Significant voltage deficits in these WBG perovskites hinder their ultimate performance, representing an unsolved challenge in the field.

Purpose of the Study:

  • To investigate the formation dynamics and defect physics of WBG mixed-halide perovskites.
  • To contrast these properties with their triiodide-based counterparts.
  • To elucidate the role of bromide in WBG perovskite formation and optoelectronic properties.

Main Methods:

  • Comparative study of WBG mixed-halide perovskites and triiodide-based perovskites.
  • Analysis of perovskite film formation dynamics.
  • Investigation of defect physics and optoelectronic properties.

Main Results:

  • Bromide inclusion induces a halide homogenization process during perovskite film growth.
  • This process involves a transition from an initial bromide-rich phase to the target stoichiometry.
  • A physical model was developed correlating bromide's role with formation dynamics, defect physics, and optoelectronic properties.

Conclusions:

  • Understanding halide homogenization is critical for mitigating voltage deficits in WBG perovskites.
  • The elucidated physical model offers fundamental insights into performance-limiting factors.
  • This research provides a unique perspective for optimizing WBG mixed-halide perovskite solar cells.