Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

P-N junction

P-N junction

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...

You might also read

Related Articles

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

Sort by

Same author

Incorporation of Engineered Cu<sup>0</sup>/Cu<sup>+</sup> Interfaces in Metal-Organic Frameworks for Boosting CO<sub>2</sub> Hydrogenation to Methanol.

Angewandte Chemie (International ed. in English)·2026

Same author

Medium-intensity aerobic exercise can relieve mice anxiety by activating cannabinoid type 1 receptors on medial prefrontal cortex GABAergic neurons.

Translational psychiatry·2026

Same author

Nivolumab-AVD versus Brentuximab Vedotin-AVD as First-Line Treatment for Advanced-Stage Classical Hodgkin Lymphoma: A Cost-Effectiveness Analysis.

ClinicoEconomics and outcomes research : CEOR·2026

Same author

Multifunctional ammonia-responsive starch composites engineered by deep eutectic solvent-cellulose synergy and antimicrobial Cu-MOF for intelligent food tags.

Food research international (Ottawa, Ont.)·2026

Same author

Molecular interfaces drive vertical crystallization in Dion-Jacobson perovskite solar cells.

Science advances·2026

Same author

Germline Pathogenic Variants in HER2-Positive Breast Cancer: Spectrum and Clinical Implications in a High-Risk Chinese Cohort.

Cancer medicine·2026

Search research articles

Related Experiment Video

Updated: Jul 2, 2025

In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

Published on: March 2, 2021

Multifunctional dual-interface layer enables efficient and stable inverted perovskite solar cells.

Chaofeng Wang¹, Yi Guo¹, Shuang Liu¹

¹Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Fenghua Road 818, Ningbo 315211, China. huanglike@nbu.edu.cn.

Physical Chemistry Chemical Physics : PCCP

|February 23, 2024

Summary

Dual-interface engineering using PFN-Br and 3-PyAI significantly enhances perovskite solar cell (PSC) performance and stability. This strategy improves crystallization, reduces defects, and boosts power conversion efficiency to 22.07%.

More Related Videos

Flash Infrared Annealing for Perovskite Solar Cell Processing

Flash Infrared Annealing for Perovskite Solar Cell Processing

Published on: February 3, 2021

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

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

Published on: February 27, 2017

Related Experiment Videos

Last Updated: Jul 2, 2025

In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

Published on: March 2, 2021

Flash Infrared Annealing for Perovskite Solar Cell Processing

Flash Infrared Annealing for Perovskite Solar Cell Processing

Published on: February 3, 2021

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

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

Published on: February 27, 2017

Area of Science:

Materials Science
Renewable Energy
Photovoltaics

Background:

The hydrophobicity of poly(triarylamine) (PTAA) substrates impacts perovskite film crystallization and surface properties in inverted perovskite solar cells (PSCs).
Interface engineering is crucial for optimizing PSC performance.

Purpose of the Study:

To investigate the dual-interface engineering strategy using PFN-Br and 3-PyAI to enhance the performance and stability of PTAA-based inverted PSCs.
To analyze the interaction mechanisms of PFN-Br and 3-PyAI with perovskite layers.

Main Methods:

Insertion of PFN-Br at the PTAA/perovskite interface for improved contact and crystallization.
Application of 3-PyAI to the perovskite top surface for interface property enhancement.
Utilizing various characterization methods to analyze interfacial interactions and film properties.

Main Results:

The hydrophilic interface layers reduced film voids and defects.
3-PyAI minimized surface defects, optimized energy level alignment, and reduced non-radiative recombination, facilitating charge transfer.
Optimized devices exhibited enhanced open-circuit voltage (VOC) and fill factor (FF), with a champion power conversion efficiency (PCE) of 22.07%.

Conclusions:

Dual-interface engineering with PFN-Br and 3-PyAI is an effective strategy for developing high-performance and reliable PTAA-based PSCs.
The optimized devices demonstrated improved air stability, retaining 80% performance after 27 days.
Enhanced reverse bias stability was observed, with a reverse breakdown voltage (VRB) reaching -2 V.