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

Colors and Magnetism

Colors and Magnetism

Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...

You might also read

Related Articles

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

Sort by

Same author

Enhanced Fluorescent Aptasensor Via Tetrahedral DNA Framework-Mediated Multivalent Aptamer Network and High-Quantum-Yield Carbon Quantum Dots.

Analytical chemistry·2026

Same author

Switchable Reactivity of Hydrazonoyl Halides: Enabling the Discovery of Potent Hypoxia-Inducible Factor Inhibitors.

JACS Au·2026

Same author

Cobalt-porphyrin/Bi<sub>19</sub>S<sub>27</sub>Br<sub>3</sub> nanorods enable photocatalytic CO<sub>2</sub> reduction to C<sub>2</sub>H<sub>4</sub>.

Chemical communications (Cambridge, England)·2026

Same author

Ultrastable green top-emitting OLEDs approaching BT.2020 enabled by narrowband phosphorescent emitters.

Science advances·2026

Same author

Crystal Phase-Driven MnO<sub>2</sub>-DNA as Editable Artificial Messengers Enabling a Bioinspired Array for High-Resolution Biosensing.

ACS nano·2026

Same author

Synthesis of Unsymmetric Diaryl All-Carbon Quaternary Pyrazolones from Hydroxyphenyl Indolinones and Hydrazones.

Organic letters·2026

Search research articles

Related Experiment Video

Updated: May 7, 2026

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

Narrowband Tetradentate Pt(II) Complexes-Based Deep-Blue OLEDs with Low Efficiency Roll-Off.

Jieying Tong¹, Yun-Fang Yang¹, Yuanbin She¹

¹Center for Phosphorescent Material Research, State Key Laboratory of Green Chemical Synthesis and Conversion, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China.

Chemistry (Weinheim an Der Bergstrasse, Germany)

|October 15, 2025

Summary

Researchers developed novel platinum(II) complexes (PtTJ-Ph, PtTJ-bPh) for efficient deep-blue organic light-emitting diodes (OLEDs). These materials show high photoluminescence and minimal efficiency roll-off, paving the way for advanced display technologies.

Keywords:

N‐heterocyclic carbine Pt(II) complex deep blue OLED narrowband phosphorescence

More Related Videos

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera

Published on: December 27, 2018

Development of Efficient OLEDs from Solution Deposition

Development of Efficient OLEDs from Solution Deposition

Published on: November 4, 2022

Related Experiment Videos

Last Updated: May 7, 2026

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

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera

Published on: December 27, 2018

Development of Efficient OLEDs from Solution Deposition

Development of Efficient OLEDs from Solution Deposition

Published on: November 4, 2022

Area of Science:

Materials Science
Organic Chemistry
Photophysics

Background:

Organic light-emitting diodes (OLEDs) are crucial for modern displays.
Developing efficient and stable deep-blue emitters remains a challenge.
Platinum(II) complexes offer potential for high-performance OLEDs.

Purpose of the Study:

To design and synthesize novel tetradentate platinum(II) complexes with aryl-modified N-heterocyclic carbene (NHC) ligands.
To investigate the photophysical properties of these complexes.
To evaluate their performance as emitters in deep-blue OLED devices.

Main Methods:

Synthesis of two tetradentate Pt(II) complexes: PtTJ-Ph and PtTJ-bPh.
Characterization of emission spectra, photoluminescence quantum yields (PLQY), and excited-state lifetimes.
Fabrication and testing of a deep-blue OLED device utilizing PtTJ-Ph.

Main Results:

PtTJ-Ph and PtTJ-bPh exhibited narrow emission spectra (FWHM 19.0-19.8 nm) and high PLQY (93-99%).
Short excited-state lifetimes (2.34-2.72 µs) were observed in PMMA films.
The OLED device with PtTJ-Ph showed a peak emission at 458 nm (FWHM 25 nm), CIE y coordinate of 0.138, and a maximum EQE of 22.7%.
The device demonstrated excellent stability with minimal efficiency roll-off (8.3% at 1000 cd/m²).

Conclusions:

The synthesized Pt(II) complexes possess excellent photoluminescent properties suitable for OLED applications.
PtTJ-Ph demonstrates significant potential as a highly efficient and stable deep-blue emitter for OLEDs.
These findings contribute to the development of advanced materials for next-generation electronic displays.