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

Bipolar Junction Transistor

Bipolar Junction Transistor

Bipolar Junction Transistors (BJTs) are essential elements in electronic circuits, playing a crucial role in the functionality of amplifiers, memories, and microprocessors. These transistors can be designed as NPN or PNP based on their doping patterns. They consist of three layers: the emitter, base, and collector. The configuration of these layers and their respective doping levels—with N-type or P-type impurities—define the transistor's type and its operational characteristics.
The structure...

You might also read

Related Articles

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

Sort by

Same author

Uncovering Local Piezoelectric Field Effect in Mechanoluminescent Materials.

Advanced materials (Deerfield Beach, Fla.)·2026

Same author

[Association between daytime napping and depressive symptoms in older women: The chain mediating role of frailty and C-reactive protein].

Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences·2026

Same author

Workplace violence predicts depression and anxiety in nurses: a multi-center longitudinal study in China.

BMC psychiatry·2025

Same author

Social determinants of health, brain structure, and immune-metabolic mechanisms in depression: A multi-omic analysis from the UK Biobank.

Brain, behavior, and immunity·2025

Same author

Association between depressive symptoms and all-cause and cardiovascular mortality in diabetes patients: A national cohort study.

Journal of affective disorders·2025

Same author

Dietary Addition of Tributyrin Improved the Production Performance, Antioxidant Ability and Intestinal Health in Weaned Rabbits.

Animals : an open access journal from MDPI·2025

Search research articles

Related Experiment Video

Updated: Jun 11, 2026

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

Anthracene-Based Bipolar Emitter for High-Performance Deep-Blue Organic Light-Emitting Diodes.

Meng Zhao¹, Tongbo Wang¹, Lin Fu¹

¹Chinalco Research Institute of Science and Technology Co., Ltd., Beijing, China.

Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry

|June 9, 2026

Summary

This summary is machine-generated.

Researchers developed a novel deep-blue emitter, CAP, for organic light-emitting diodes (OLEDs). This anthracene-based material achieves high efficiency and color purity, addressing a key challenge in OLED technology.

Keywords:

anthracene bipolar emitter fluorescence ultrapure deep‐blue organic light‐emitting diodes

More Related Videos

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode

Published on: May 31, 2018

Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes

Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes

Published on: November 16, 2018

Related Experiment Videos

Last Updated: Jun 11, 2026

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

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode

Published on: May 31, 2018

Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes

Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes

Published on: November 16, 2018

Area of Science:

Materials Science
Organic Electronics
Photophysics

Background:

Developing high-efficiency, color-pure deep-blue emitters is crucial for advanced organic light-emitting diodes (OLEDs).
Existing deep-blue emitters often struggle with efficiency and color purity, limiting OLED performance.

Purpose of the Study:

To design and synthesize a novel fluorescent emitter for high-performance deep-blue OLEDs.
To investigate the photophysical properties and electroluminescence mechanism of the new emitter.

Main Methods:

Synthesis of a novel fluorescent emitter (CAP) using anthracene, 9-phenylcarbazole, and 4-methylpyridine.
Density functional theory (DFT) simulations to analyze electronic structure and transition properties.
Experimental validation using solvatochromism studies and device fabrication for OLED performance testing.

Main Results:

The synthesized emitter, CAP, exhibits a locally excited (LE) state-controlled luminescence mechanism, confirmed by DFT and negligible solvatochromism.
Optimized OLEDs using CAP achieved ultrapure deep-blue electroluminescence with CIE coordinates (0.15, 0.05).
The devices demonstrated a maximum external quantum efficiency (EQEmax) of 4.18% and a narrow full width at half maximum (FWHM) of 50 nm.

Conclusions:

Anthracene-derived architectures are promising for developing high-performance ultrapure deep-blue electroluminescent materials.
The CAP emitter represents a significant advancement in achieving efficient and color-pure deep-blue emission for OLED applications.