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

A Recyclable and Sustainable Hydroxypropyl Methylcellulose Electrolyte for Electrochromic Devices.

Advanced materials (Deerfield Beach, Fla.)·2026

Same author

Sonochemical boron incorporation enhances activity and durability of ruthenium oxide for acidic water oxidation.

Nature communications·2026

Same author

Leaf-Stomata-Inspired 3D Suspended Ultrasensitive E-Skin for Dual-Modal Tactile and Nociceptive Sensing in Robotics.

Nano letters·2026

Same author

A Dual-Anion Synergistic Strategy for Cationic COF Separators toward Enhanced Li-S Batteries.

ACS applied materials & interfaces·2026

Same author

Enamel-inspired composite with robust mechanical properties and self-healing capability.

Nature communications·2026

Same author

Charge symmetry breaking stabilizes high-valence Ru sites for proton exchange membrane electrolysis.

Nature communications·2026

Same journal

Intrinsic Superconducting Gap in Bilayer KCa<sub>2</sub>Fe<sub>4</sub>As<sub>4</sub>F<sub>2</sub> and Decoupled Monolayer FeAs.

Nano letters·2026

Same journal

Programmable Hydrogen-Assisted Chemical Vapor Deposition Growth and Bipolar Transport in Two-Dimensional MoO<sub>2</sub> Nanoflakes.

Nano letters·2026

Same journal

A Curvature-Modulated Strategy for Single-Atom Catalysts toward Reciprocal Regulation in Li-S Batteries.

Nano letters·2026

Same journal

Vacuum Pyrolysis Engineered CoSb/C Scaffold for Sodium Metal Anodes with Sodiophilic and Superionic Interphase.

Nano letters·2026

Same journal

Hexagonal SiGe Quantum Dots in Nanowires.

Nano letters·2026

Same journal

Monolithic Axial InGaAs Quantum Dot Emitters in GaAs-Based Nanowires via Sb-Mediated Facet Engineering.

Nano letters·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Oct 12, 2025

An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation

An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation

Published on: February 27, 2019

Self-Powered Flexible Electrochromic Smart Window.

Jin-Long Wang¹, Si-Zhe Sheng¹, Zhen He¹

¹Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Institute of Energy, Hefei Comprehensive National Science Center, CAS Center for Excellence in Nanoscience, Department of Chemistry, Institute of Biomimetic Materials and Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei 230026, China.

|November 23, 2021

Summary

This summary is machine-generated.

This study presents a self-powered flexible electrochromic device for smart windows, eliminating the need for external power. The innovative design integrates silver nanowire film and an aluminum sheet, enabling efficient and durable operation.

Keywords:

flexible electrode galvanic cell nanowire self-powered electrochromic device smart window

More Related Videos

Scalable Solution-processed Fabrication Strategy for High-performance, Flexible, Transparent Electrodes with Embedded Metal Mesh

Scalable Solution-processed Fabrication Strategy for High-performance, Flexible, Transparent Electrodes with Embedded Metal Mesh

Published on: June 23, 2017

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: Oct 12, 2025

An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation

An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation

Published on: February 27, 2019

Scalable Solution-processed Fabrication Strategy for High-performance, Flexible, Transparent Electrodes with Embedded Metal Mesh

Scalable Solution-processed Fabrication Strategy for High-performance, Flexible, Transparent Electrodes with Embedded Metal Mesh

Published on: June 23, 2017

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
Electrochemistry
Nanotechnology

Background:

Electrochromic devices are promising for smart windows but require external power and rigid substrates like Indium Tin Oxide (ITO).
These limitations hinder energy efficiency and restrict applications in flexible electronics.

Purpose of the Study:

To develop a self-powered, flexible electrochromic device that overcomes the limitations of current technologies.
To demonstrate a viable alternative to ITO substrates and external power sources for electrochromic smart windows.

Main Methods:

Fabrication of a flexible electrochromic device by integrating a silver (Ag) nanowire film with an aluminum (Al) sheet.
Utilizing the Ag nanowire film as a replacement for the ITO electrode.
Leveraging the galvanic cell principle to generate an open-circuit voltage (∼0.83 V) for device operation.

Main Results:

The integrated Ag/W₁₈O₄₉ nanowire film and Al sheet generated sufficient voltage to drive the W₁₈O₄₉ nanowires' coloration.
The flexible self-powered device exhibited minimal material consumption (∼6.8 mg/cm² of Al) after 450 switching cycles.
The device demonstrated scalability, with successful expansion to a 20 × 20 cm² area.

Conclusions:

The developed self-powered flexible electrochromic device offers a sustainable and versatile solution for smart window applications.
This technology holds significant potential for next-generation flexible electronics and energy-efficient smart windows.