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

Quinoxaline Terpolymer-Controlled Miscibility With Oligomeric Acceptors for Over 20% Efficiency, Highly Stable and Stretchable Polymer Solar Cells.

Advanced materials (Deerfield Beach, Fla.)·2026

Same author

Partial Phase Remixing of Segregated Mixed Halide Perovskite Nanocrystals Induced by an Instant Change in an External Electric Field.

The journal of physical chemistry letters·2026

Same author

Ternary Strategy Enables 18.16% Efficiency in All-Small-Molecule Organic Solar Cells with Improved Fill Factor and Reduced Voltage Loss.

ACS applied materials & interfaces·2026

Same author

Short-Wave Infrared Organic Photodetectors With Ultralow Dark Current Density Under Biased Operating Conditions.

Advanced materials (Deerfield Beach, Fla.)·2026

Same author

Achieving 20.5% Efficiency in Organic Solar Cells via Co-Crystallizable Small Molecule Acceptors.

Advanced materials (Deerfield Beach, Fla.)·2026

Same author

Formation of Abundant Quantum Emitters in 2D Lead-Halide Perovskites.

Nano letters·2026

Search research articles

Related Experiment Video

Updated: Dec 20, 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

Cathode engineering with perylene-diimide interlayer enabling over 17% efficiency single-junction organic solar

Jia Yao¹, Beibei Qiu², Zhi-Guo Zhang³

¹State Key Laboratory of Organic/Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.

Nature Communications

|June 3, 2020

Summary

This summary is machine-generated.

Researchers developed a new hydrogen-bonding material, PDINN, for organic solar cells (OSCs). This material improves cathode function and stability, leading to higher power conversion efficiency in OSC devices.

More Related Videos

Morphology Control for Fully Printable Organic–Inorganic Bulk-heterojunction Solar Cells Based on a Ti-alkoxide and Semiconducting Polymer

Morphology Control for Fully Printable Organic–Inorganic Bulk-heterojunction Solar Cells Based on a Ti-alkoxide and Semiconducting Polymer

Published on: January 10, 2017

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

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

Published on: November 5, 2014

Related Experiment Videos

Last Updated: Dec 20, 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

Morphology Control for Fully Printable Organic–Inorganic Bulk-heterojunction Solar Cells Based on a Ti-alkoxide and Semiconducting Polymer

Morphology Control for Fully Printable Organic–Inorganic Bulk-heterojunction Solar Cells Based on a Ti-alkoxide and Semiconducting Polymer

Published on: January 10, 2017

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

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

Published on: November 5, 2014

Area of Science:

Materials Science
Organic Electronics
Energy Conversion

Background:

Cathode interfacial materials in organic solar cells (OSCs) typically use polar groups to lower cathode work function.
High surface energy from polar groups can cause poor contact, hindering device stability and efficiency.

Purpose of the Study:

To develop a novel cathode interfacial material that balances work function reduction with improved interfacial contact.
To investigate the use of hydrogen-bonding interactions for enhanced interlayer engineering in OSCs.

Main Methods:

Synthesis of aliphatic amine-functionalized perylene-diimide (PDINN) as a hydrogen-bonding interfacial material.
Fabrication and characterization of OSCs utilizing PDINN with silver and copper cathodes.
Performance evaluation including power conversion efficiency (PCE) and device stability.

Main Results:

PDINN effectively down-shifts the work function of silver and copper cathodes.
PDINN ensures good physical contact between the cathode and the active layer.
OSCs with PDINN-engineered silver cathodes achieved a PCE of 17.23% (16.77% certified) and demonstrated high stability.

Conclusions:

PDINN serves as an effective cathode interfacial material for OSCs.
Interlayer engineering using specific intermolecular interactions, like hydrogen bonding, is a viable strategy to enhance OSC performance and stability.