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

Aromatic Hydrocarbon Cations: Structural Overview01:18

Aromatic Hydrocarbon Cations: Structural Overview

2.8K
Cycloheptatriene is a neutral monocyclic unsaturated hydrocarbon that consists of an odd number of carbon atoms and an intervening sp3 carbon in the ring. The three double bonds in the ring correspond to 6 π electrons, which is a Huckel number, and therefore satisfies the criteria of 4n + 2 π electrons. However, the intervening sp3 carbon disrupts the continuous overlap of p orbitals. As a result, cycloheptatriene is not aromatic.
Removing one hydrogen from the intervening CH2 group...
2.8K
P-N junction01:11

P-N junction

534
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...
534

You might also read

Related Articles

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

Sort by
Same author

Halide exchange in (ClEA)<sub>2</sub>PbI<sub>4</sub> and its effect on the structural and electronic properties of perovskite layers.

Dalton transactions (Cambridge, England : 2003)·2026
Same author

Breakthrough Energy Storage Density in Bi<sub>0.5</sub>Na<sub>0.5</sub>TiO<sub>3</sub>-Based Films via Synergistic Enhancement of Polarization and Breakdown Strength at Moderate Electric Fields.

ACS applied materials & interfaces·2026
Same author

Dynamic atomic-scale electron avalanche breakdown in solid dielectrics.

Nature communications·2025
Same author

Effect of halogen substitution in spacer cations on two-dimensional Ruddlesden-Popper perovskites.

Physical chemistry chemical physics : PCCP·2025
Same author

Enhanced Energy Storage Performance in Mn-Doped SrBi<sub>5</sub>Ti<sub>4</sub>FeO<sub>18</sub> Thin Films via Defect Engineering.

ACS applied materials & interfaces·2025
Same author

Preparation of high-performance quasi-two-dimensional (Q-2D) perovskite solar cells by fluorinated benzylamine groups at different substitution positions.

Physical chemistry chemical physics : PCCP·2025

Related Experiment Video

Updated: Jul 4, 2025

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

16.6K

Comparative Analysis of Thiophene-Based Interlayer Cations for Enhanced Performance in 2D Ruddlesden-Popper

Kegui Li1, Xiaoyan Gan1, Ruojin Zheng1

  • 1School of Materials Science and Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China.

ACS Applied Materials & Interfaces
|February 2, 2024
PubMed
Summary
This summary is machine-generated.

Thiophenemethylamine (TMA) cations improve 2D Ruddlesden-Popper perovskite solar cells by enhancing film quality and electron mobility. TMA-based devices achieve 16.56% efficiency and maintain stability, outperforming thiopheneethylamine (TEA) based cells.

Keywords:
2D Ruddlesden−Popper perovskiteslow-n phasessolar cellstheoretical calculationsthiophene-based cations

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

18.5K
Flash Infrared Annealing for Perovskite Solar Cell Processing
05:15

Flash Infrared Annealing for Perovskite Solar Cell Processing

Published on: February 3, 2021

7.9K

Related Experiment Videos

Last Updated: Jul 4, 2025

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

16.6K
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

18.5K
Flash Infrared Annealing for Perovskite Solar Cell Processing
05:15

Flash Infrared Annealing for Perovskite Solar Cell Processing

Published on: February 3, 2021

7.9K

Area of Science:

  • Materials Science
  • Solid State Physics
  • Photovoltaics

Background:

  • 2D Ruddlesden-Popper (RP) perovskites are promising for optoelectronics due to tunable properties and stability.
  • Interlayer cations significantly impact the performance of 2D RP perovskites.
  • Understanding cation-specific effects is crucial for optimizing perovskite solar cell design.

Purpose of the Study:

  • To investigate the intrinsic and device performance differences between 2D RP perovskites using thiophenemethylamine (TMA) and thiopheneethylamine (TEA) interlayer cations.
  • To elucidate the role of interlayer cation choice in perovskite crystallization, charge transport, and device efficiency.
  • To provide insights for selecting optimal organic interlayer cations for 2D RP perovskite solar cells.

Main Methods:

  • Density Functional Theory (DFT) calculations to analyze electronic structure and material properties.
  • Experimental synthesis and characterization of TMA- and TEA-based 2D perovskite thin films.
  • Fabrication and performance testing of perovskite solar cell devices, including efficiency and stability measurements.

Main Results:

  • DFT calculations revealed (TEA)2PbI4 has more distorted [PbI6]4- units, a wider band gap, and larger effective mass than (TMA)2PbI4.
  • TEA-based perovskites formed more low-n phases, hindering charge transfer and light harvesting.
  • TMA-based perovskites showed excellent film quality, improved electron mobility, a 16.56% power conversion efficiency (PCE), and retained 88% efficiency after 1080 hours of environmental exposure.

Conclusions:

  • The choice of organic interlayer cation critically influences 2D RP perovskite properties and device performance.
  • TMA cations promote superior film quality, charge transport, and device stability compared to TEA cations.
  • These findings offer valuable guidance for the rational design of high-performance and stable 2D RP perovskite solar cells.