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

P-N junction01:11

P-N junction

1.0K
A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...
1.0K

You might also read

Related Articles

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

Sort by
Same author

Mesoscale ordered assembly of Er<sup>3+</sup>-doped quantum dots enables efficient 1.55 µm electroluminescence.

Nature communications·2026
Same author

Sequential Evaporation for Scalable Hybrid Processing of Perovskite/Silicon Tandem Solar Cells.

ACS applied materials & interfaces·2026
Same author

Automated synthesis of InSb quantum dots with improved batch-to-batch reproducibility via kinetically matched co-reduction.

Nature communications·2026
Same author

Bridging Synthesis and Device Performance in Perovskite Quantum Dot Light-Emitting Diodes.

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

Short-Chain Acids Sustain InAs Colloidal Quantum Dot Growth during Synthesis, Extending Spectral Response into the Deep Short-Wave Infrared.

Journal of the American Chemical Society·2026
Same author

Ion agent mitigates efficiency roll-off in near-infrared electroluminescence for practical bioimaging and information encryption.

Light, science & applications·2026

Related Experiment Video

Updated: Dec 26, 2025

Ambient Method for the Production of an Ionically Gated Carbon Nanotube Common Cathode in Tandem Organic Solar Cells
14:37

Ambient Method for the Production of an Ionically Gated Carbon Nanotube Common Cathode in Tandem Organic Solar Cells

Published on: November 5, 2014

9.8K

Enhanced optical path and electron diffusion length enable high-efficiency perovskite tandems.

Bin Chen1, Se-Woong Baek1, Yi Hou1

  • 1Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, ON, M5S 1A4, Canada.

Nature Communications
|March 11, 2020
PubMed
Summary

Researchers improved tandem solar cell efficiency by enhancing perovskite light absorption and carrier collection. This boosts power conversion efficiency (PCE) for next-generation solar energy technologies.

More Related Videos

Flash Infrared Annealing for Perovskite Solar Cell Processing
05:15

Flash Infrared Annealing for Perovskite Solar Cell Processing

Published on: February 3, 2021

8.5K
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

9.9K

Related Experiment Videos

Last Updated: Dec 26, 2025

Ambient Method for the Production of an Ionically Gated Carbon Nanotube Common Cathode in Tandem Organic Solar Cells
14:37

Ambient Method for the Production of an Ionically Gated Carbon Nanotube Common Cathode in Tandem Organic Solar Cells

Published on: November 5, 2014

9.8K
Flash Infrared Annealing for Perovskite Solar Cell Processing
05:15

Flash Infrared Annealing for Perovskite Solar Cell Processing

Published on: February 3, 2021

8.5K
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

9.9K

Area of Science:

  • Materials Science
  • Renewable Energy
  • Photovoltaics

Background:

  • Tandem solar cells offer higher power conversion efficiencies (PCEs) than single-junction cells.
  • Current tandem solar cells are limited by inefficient photon harvesting and carrier collection.
  • Metal-halide perovskite subcells are promising for high-efficiency tandem devices.

Purpose of the Study:

  • To overcome photon harvesting limitations in perovskite-based tandem solar cells.
  • To enhance carrier collection and electron diffusion length in perovskite films.
  • To achieve higher PCEs in perovskite/silicon and perovskite/colloidal quantum dot tandem cells.

Main Methods:

  • Developed 'boosted solvent extraction' to increase perovskite film thickness while maintaining smooth morphology.
  • Incorporated a Lewis base additive to reduce trap density and improve electron diffusion length.
  • Fabricated semi-transparent perovskite cells and integrated them into tandem configurations.

Main Results:

  • Achieved a 19% PCE for 1.63 eV semi-transparent perovskite cells with 85% average near-infrared transmittance.
  • Enhanced electron diffusion length to 2.3 µm through Lewis base addition.
  • Demonstrated a 24% PCE for perovskite/colloidal quantum dot:organic hybrid tandems and a 28.2% PCE for perovskite/silicon tandems.

Conclusions:

  • Boosted solvent extraction and Lewis base treatment effectively improve perovskite solar cell performance.
  • Tandem solar cells combining perovskite top cells with optimized bottom cells show significant PCE gains.
  • These advancements pave the way for highly efficient and potentially lower-cost solar energy conversion.