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Photoluminescence: Applications

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Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...

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Updated: Feb 27, 2026

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

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Published on: November 15, 2016

Synergistic Tri-emission Enabling Single-Component White Organic Light-Emitting Transistors.

Xiangyu Tan^1,2, Sheng-Hong Zhao¹, Qingbin Li²

¹State Key Laboratory of Applied Organic Chemistry (SKLAOC), Key Laboratory of Special Function Materials and Structure Design (MOE), College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, China.

Angewandte Chemie (International Ed. in English)

|February 26, 2026

Summary

This summary is machine-generated.

Researchers developed a new molecular design for white organic light-emitting transistors (OLETs). This strategy enables single-component OLETs with high mobility and efficient white light emission by combining monomer, excimer, and electromer emissions.

Keywords:

Light emission Mobility Organic light‐emitting transistors Organic semiconductor electromer

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Area of Science:

Materials Science
Organic Electronics
Solid-State Physics

Background:

White organic light-emitting transistors (OLETs) are crucial for advanced displays.
Current OLET development faces challenges due to a lack of materials with both high charge carrier mobility and efficient white light emission.

Purpose of the Study:

To present a novel molecular design strategy for achieving white electroluminescence in single-component OLETs.
To synthesize and characterize a new material (DTA) based on this strategy.

Main Methods:

Molecular design and synthesis of 2,6-bis(dibenzo[b,d]thiophen-3-yl)anthracene (DTA).
Characterization of photoluminescence quantum yield and hole mobility.
Fabrication and testing of single-component OLET devices using DTA.

Main Results:

DTA exhibits a photoluminescence quantum yield of 35% and high hole mobility (5.8 cm² V⁻¹ s⁻¹).
DTA shows synergistic white electroluminescence from monomer, excimer, and electromer emissions.
Gate voltage dynamically tunes color temperature and achieves high color rendering.

Conclusions:

The study introduces a new design paradigm for high-mobility white-light emitters.
This work advances the development of practical single-component white OLETs for smart displays.