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

Biasing of P-N Junction

Biasing of P-N Junction

The operation of a p-n junction diode involves various biasing conditions, including forward bias, reverse bias, and equilibrium.
In equilibrium, no external voltage is applied across the p-n junction. The depletion region is formed at the junction interface due to the diffusion of carriers, which leaves behind charged dopants, acceptors on the p-side, and donors on the n-side. These immobile charges create an electric field that prevents further diffusion of carriers. The related energy band...

You might also read

Related Articles

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

Sort by

Same author

Electrically Tunable Heliconical Smectic Superstructure in Polar Fluids.

Advanced materials (Deerfield Beach, Fla.)·2026

Same author

Phase-Transition-Induced Fluorescence Changes in a Calamitic Liquid Crystal With an AIEgen Mesogen.

Chemistry, an Asian journal·2026

Same author

Computation-Guided Control of Excited-State Deactivation through Modulation of Conical-Intersection Accessibility by Donor-Acceptor Asymmetry in Bridged Stilbene AIE Luminogens.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026

Same author

Bright Solvatochromic Fluorophores With Dual Emission Enabled by a Donor-Engineering Strategy.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026

Same author

Fluorescence Analysis of Local Microenvironments in Polymer Films Using Solvatochromic Dyes.

Sensors (Basel, Switzerland)·2026

Same author

Benzoyl-Xanthenoxanthenes: Versatile Chromophores for Light-Engaging Applications.

Angewandte Chemie (International ed. in English)·2026

Search research articles

Related Experiment Video

Updated: May 25, 2026

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

Push-Pull Biphenyl Liquid Crystals Enabling Low-Voltage-Driven Light-Emitting Devices.

Yuuto Iida¹, Hiroyuki Yoshida², Tsuneaki Sakurai³

¹Department of Chemical Science and Engineering, Institute of Science Tokyo, Meguro-ku, Tokyo, Japan.

Chemistry, an Asian Journal

|May 23, 2026

Summary

Researchers developed a new liquid crystal mixture (NB-5) for energy-efficient light-emitting liquid-crystal displays (LE-LCDs). This material enables low-voltage operation, overcoming previous limitations and paving the way for practical LE-LCD applications.

Keywords:

D‐π‐A biphenyl fluorescence light‐emitting device liquid crystal

More Related Videos

Fabrication of White Light-emitting Electrochemical Cells with Stable Emission from Exciplexes

Fabrication of White Light-emitting Electrochemical Cells with Stable Emission from Exciplexes

Published on: November 15, 2016

Step-by-Step Guide for Harnessing Organic Light Emitting Diodes by Solution Processed Device Fabrication of a TADF Emitter

Step-by-Step Guide for Harnessing Organic Light Emitting Diodes by Solution Processed Device Fabrication of a TADF Emitter

Published on: November 7, 2025

Related Experiment Videos

Last Updated: May 25, 2026

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

Fabrication of White Light-emitting Electrochemical Cells with Stable Emission from Exciplexes

Fabrication of White Light-emitting Electrochemical Cells with Stable Emission from Exciplexes

Published on: November 15, 2016

Step-by-Step Guide for Harnessing Organic Light Emitting Diodes by Solution Processed Device Fabrication of a TADF Emitter

Step-by-Step Guide for Harnessing Organic Light Emitting Diodes by Solution Processed Device Fabrication of a TADF Emitter

Published on: November 7, 2025

Area of Science:

Materials Science
Display Technology
Organic Electronics

Background:

Light-emitting liquid-crystal displays (LE-LCDs) offer energy efficiency by omitting polarizers and color filters.
Previous LE-LCD prototypes faced challenges due to high driving voltage requirements.

Purpose of the Study:

To improve the performance of LE-LCDs by developing a new liquid crystal mixture.
To achieve low-voltage operation in electro-optical fluorescence switching devices.

Main Methods:

Synthesized and characterized a novel liquid crystal mixture of push-pull biphenyl derivatives (NB-5).
Fabricated an electro-optical fluorescence switching device using the NB-5 mixture.
Evaluated the device's electro-optical properties, including threshold voltage and operating temperature.

Main Results:

The NB-5 mixture exhibits intrinsic luminescence and maintains a nematic phase at room temperature.
The developed device operates effectively at 30°C with a remarkably low threshold voltage (few volts).
NB-5 demonstrates excellent birefringence and high dichroic ratios, crucial for display performance.

Conclusions:

Push-pull molecular design is effective for enhancing electro-optical responsiveness in liquid crystal materials.
The NB-5 mixture shows significant potential for the practical implementation of low-voltage-driven LE-LCDs.
This advancement contributes to the development of more energy-efficient display technologies.