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

Rare emergence of delamanid resistance in multidrug-/rifampicin-resistant tuberculosis patients receiving delamanid-containing regimens: a prospective multicentric study in China.

Annals of clinical microbiology and antimicrobials·2026

Same author

Cross-Conjugated Donor-Acceptor Polymers for High-Performance Organic Electrochemical Transistors.

Polymer science & technology (Washington, D.C.)·2026

Same author

Docetaxel Oral Delivery System Using Natural Nanoparticles Derived from Ganoderma: Enhanced Pharmacokinetics, Potent Cytotoxicity, and Macrophage-Activating Properties.

Pharmaceuticals (Basel, Switzerland)·2026

Same author

<i>Klebsiella oxytoca</i> P620 and <i>Pseudomonas</i> sp. CFA co-inoculation modulates rhizospheric bacterial communities to alleviate the combined stresses of phenolic acids and nitrate in cucumber.

Frontiers in microbiology·2026

Same author

Synthesis, processing and applications of poly(benzodifurandione).

Chemical communications (Cambridge, England)·2026

Same author

Long-term efficacy of subthalamic nucleus deep brain stimulation in focal motor seizures and implications for candidate selection.

Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics·2026

Same journal

Accurate Density Functional Theory Forces for Charged Noncovalent Complexes.

The journal of physical chemistry letters·2026

Same journal

Dopant-Centered versus Intersite Synergistic Mechanisms in H<sub>2</sub> Dissociation on Single-Atom Alloys.

The journal of physical chemistry letters·2026

Same journal

Post-Translational Modification as an Allosteric Switch in Hsp90: How Dual Phosphorylation Locks Chaperone Complexes into Hyperstabilized States.

The journal of physical chemistry letters·2026

Same journal

LHCSR1 Functions as a Dimmer Switch for Light Harvesting.

The journal of physical chemistry letters·2026

Same journal

Sparse Linear Surrogates Match Neural Network Potentials on the SPICE Biomolecular Benchmark with Three Orders of Magnitude Smaller Training Sets.

The journal of physical chemistry letters·2026

Same journal

Solid-State NMR Quantification of Brønsted-Lewis Acid Site Cooperativity in Zeolites for Glucose Conversion.

The journal of physical chemistry letters·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Jan 7, 2026

Integration of Light Trapping Silver Nanostructures in Hydrogenated Microcrystalline Silicon Solar Cells by Transfer Printing

Integration of Light Trapping Silver Nanostructures in Hydrogenated Microcrystalline Silicon Solar Cells by Transfer Printing

Published on: November 9, 2015

InSe Nanosheet/Ultrathin Si Heterojunction for Filterless, Self-Powered Ultraviolet Photodetection.

Wei Shu¹, Zi-Hao Guo¹, Zhi-Yong Deng¹

¹School of Microelectronics, Hefei University of Technology, Hefei 230009, China.

The Journal of Physical Chemistry Letters

|December 30, 2025

Summary

This summary is machine-generated.

Researchers developed an InSe nanosheet/ultrathin silicon heterojunction for filterless ultraviolet (UV) photodetection. This device offers improved performance and potential for anti-interference UV communication systems.

More Related Videos

Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids

Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids

Published on: August 23, 2012

Fabrication of Flexible Image Sensor Based on Lateral NIPIN Phototransistors

Fabrication of Flexible Image Sensor Based on Lateral NIPIN Phototransistors

Published on: June 23, 2018

Related Experiment Videos

Last Updated: Jan 7, 2026

Integration of Light Trapping Silver Nanostructures in Hydrogenated Microcrystalline Silicon Solar Cells by Transfer Printing

Integration of Light Trapping Silver Nanostructures in Hydrogenated Microcrystalline Silicon Solar Cells by Transfer Printing

Published on: November 9, 2015

Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids

Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids

Published on: August 23, 2012

Fabrication of Flexible Image Sensor Based on Lateral NIPIN Phototransistors

Fabrication of Flexible Image Sensor Based on Lateral NIPIN Phototransistors

Published on: June 23, 2018

Area of Science:

Materials Science
Nanotechnology
Optoelectronics

Background:

Ultrathin silicon shows promise for filterless ultraviolet (UV) photodetection due to its wavelength-dependent coefficient.
High defect density in ultrathin silicon leads to severe surface recombination, degrading UV photodetection performance.

Purpose of the Study:

To fabricate an InSe nanosheet/ultrathin silicon heterojunction for enhanced UV photodetection.
To investigate the potential of this heterojunction for self-powered, filterless UV detection and anti-interference UV communication.

Main Methods:

Fabrication of an InSe nanosheet/ultrathin silicon heterojunction.
Characterization of the heterojunction's performance under 365 nm illumination.
Evaluation of responsivity, external quantum efficiency (EQE), and response speed.

Main Results:

The heterojunction exhibits a built-in electric field that enhances photocarrier separation and collection efficiency.
Achieved a peak responsivity of 0.25 A W^-1 and an EQE of 85.6%.
Demonstrated fast response times (150/195 μs rise/fall) and self-powered operation.

Conclusions:

The InSe/ultrathin Si heterojunction is a promising self-powered, filterless UV photodetector.
The device shows potential for anti-interference UV communication applications.
This work presents a viable strategy for developing portable UV optical communication systems.