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Related Experiment Video

Updated: Jun 13, 2026

Free-form Light Actuators — Fabrication and Control of Actuation in Microscopic Scale

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Published on: May 25, 2016

A flexible organic mechanoluminophore device.

Qingyang Zhang¹, Mengxin Xu¹, Liming Zhou²

¹State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, 130012, China.

Nature Communications

|March 6, 2023

Summary

Researchers developed a low-cost flexible organic mechanoluminophore device that converts mechanical energy into visible light patterns. This device is discernible even in bright ambient light, overcoming limitations of previous technologies.

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Area of Science:

Materials Science
Organic Electronics
Photonics

Background:

Flexible mechanoluminophore devices offer potential for human-machine interfaces and IoT applications.
Existing devices suffer from low light emission, making them indiscernible under ambient light, especially with slight force application.

Purpose of the Study:

To develop a low-cost, flexible organic mechanoluminophore device with enhanced visibility under ambient light.
To create a multifunctional device for anti-counterfeiting applications by integrating various responsive emitters.

Main Methods:

Fabrication of a multi-layered device integrating a top-emitting organic light-emitting device (OLED) and a piezoelectric generator on a polymer substrate.
Optimization of OLED design and piezoelectric generator output through bending stress.
Integration of patterned electro-responsive and photo-responsive organic emitters.

Main Results:

The device demonstrates light emission discernible under ambient illumination up to 3000 lux.
Achieved high efficiency and contrast in the top-emitting OLED.
Successfully developed a multifunctional anti-counterfeiting device with mechanical, electrical, and optical inputs.

Conclusions:

The developed flexible organic mechanoluminophore device offers a significant improvement in visibility under ambient conditions.
The integrated multifunctional capabilities open new avenues for advanced anti-counterfeiting solutions and smart devices.