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

Association between asymptomatic hyperuricemia and kidney stones.

PloS one·2026

Same author

Correction to "Kinetics of Concurrent Seed Growth and Cation Exchange in Transforming Cu<sub>2-x</sub>S Nanocrystals to CuGaS<sub>2</sub> Nanorods".

Journal of the American Chemical Society·2026

Same author

MS4A4A promotes macrophages M2 polarization via NF-κB /JAK-STAT6 axis, resulting GBM malignant progression.

Oncogene·2026

Same author

Charge traps revisited: from unwanted defects to functional synapses in photosynaptic devices.

Nanoscale horizons·2026

Same author

A Deep Learning-Driven Framework Integrating Organoid-Based Functional Validation Identifies Universal Neoantigens from Recurrent Glioma Mutations.

Cancer research·2026

Same author

Nanoparticle-Enabled Photothermal Therapy Integrated with Gene Delivery, Immunotherapy, and Chemotherapy: A Comprehensive Review.

International journal of nanomedicine·2026

Same journal

Unlocking the capacity of Mn-based Prussian blue cathodes in capacitive deionization.

Nature communications·2026

Same journal

Scaling biodiversity-stability relationships from populations to meta-communities across trophic levels.

Nature communications·2026

Same journal

Thermodynamically programmed one-pot CRISPR platform for point-of-care SNP genotyping.

Nature communications·2026

Same journal

Engineering all-organic electrocatalysts with asymmetric dual-active sites for uncommon oxygen-evolving pathway.

Nature communications·2026

Same journal

Rapid GC content evolution in rice through GC-biased gene conversion and selection for translation efficiency.

Nature communications·2026

Same journal

Declines in organic matter persistence with increased soil carbon.

Nature communications·2026

See all related articles

Search research articles

Related Experiment Video

Updated: May 1, 2026

Preparation of ZnO Nanorod/Graphene/ZnO Nanorod Epitaxial Double Heterostructure for Piezoelectrical Nanogenerator by Using Preheating Hydrothermal

Preparation of ZnO Nanorod/Graphene/ZnO Nanorod Epitaxial Double Heterostructure for Piezoelectrical Nanogenerator by Using Preheating Hydrothermal

Published on: January 15, 2016

Double-heterojunction nanorods.

Nuri Oh¹, Sooji Nam¹, You Zhai²

¹1] Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA [2].

Nature Communications

|April 9, 2014

Summary

This summary is machine-generated.

Researchers developed novel double-heterojunction nanorods for advanced electronics. These colloidal quantum dot structures offer independent control over charge carriers, enhancing device performance and efficiency.

More Related Videos

Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates

Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates

Published on: June 18, 2013

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations

Published on: October 12, 2019

Related Experiment Videos

Last Updated: May 1, 2026

Preparation of ZnO Nanorod/Graphene/ZnO Nanorod Epitaxial Double Heterostructure for Piezoelectrical Nanogenerator by Using Preheating Hydrothermal

Preparation of ZnO Nanorod/Graphene/ZnO Nanorod Epitaxial Double Heterostructure for Piezoelectrical Nanogenerator by Using Preheating Hydrothermal

Published on: January 15, 2016

Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates

Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates

Published on: June 18, 2013

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations

Published on: October 12, 2019

Area of Science:

Materials Science
Nanotechnology
Optoelectronics

Background:

Semiconductor heterostructures are vital for modern electronics and optoelectronics.
Colloidal quantum dots (CQDs) offer solution-processability for next-generation devices.
Nanostructured heterojunctions, particularly in nanorods, promise enhanced functionality due to shape anisotropy.

Purpose of the Study:

To engineer novel double-heterojunction nanorods with type II staggered band offsets.
To achieve independent control over electron and hole injection/extraction processes.
To demonstrate improved photoluminescence yields and device performance.

Main Methods:

Synthesis of double-heterojunction nanorods comprising two distinct semiconductor materials and a smaller band gap material.
Characterization of band alignment and electronic properties.
Fabrication and testing of light-emitting diodes (LEDs) using the developed nanorods.

Main Results:

Successful fabrication of double-heterojunction nanorods with type II band alignment.
Demonstrated independent control over electron and hole transport.
Maintained high photoluminescence quantum yields.
Fabricated LEDs exhibited low threshold voltage, narrow emission bandwidth, and high efficiencies.

Conclusions:

Double-heterojunction nanorods offer a promising platform for advanced optoelectronic devices.
Independent control over charge carrier dynamics enhances device performance.
This approach enables efficient and high-performance colloidal quantum dot-based LEDs.