Tris(8-hydroxyquinolinato)aluminum-doped stretchable alternating current electroluminescent devices with tunable multicolor emission for patterned display application

IF 6.2 3区材料科学 Q2 CHEMISTRY, PHYSICAL

FlatChem Pub Date : 2025-09-27 DOI:10.1016/j.flatc.2025.100941

Huan Gao , Yilin Guo , Haoran Li , Zimen Yu , Yugang Chen , Qing Cao , Yiren Liu , Hongtao Cao , Shasha Wang , Linghai Xie

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引用次数: 0

Abstract

Stretchable alternating current electroluminescent (ACEL) devices that emit multiple colors are essential for soft electronics and displays. However, traditional ACEL devices face significant challenges in terms of color tunability and stretchability. This study introduced tris(8-hydroxyquinolinato)aluminum (Alq₃) into the emitting layer for the construction of a multicolored ACEL device, which achieves color-tunable emissions from blue to red (464–588 nm) by adjusting the mass ratio of Alq₃ to ZnS-based phosphors. Polydimethylsiloxane was integrated as a flexible matrix and Ag nanowires as stretchable electrodes to endow the device with mechanical stretchability up to 240 %, while maintaining stable emission under 50 % strain. Structural and photophysical characterizations have confirmed that the incorporation of Alq₃ does not affect the crystallinity of the phosphors but regulates emission through charge transfer. Patterned multicolor display arrays and a customizable “CMSOD” emblem have been fabricated, highlighting potential applications in information displays. This work presents a straightforward method for fabricating stretchable ACEL devices with tunable color output through organic-inorganic hybrids, offering an alternative ACEL device for soft optoelectronics with colorful displays.

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具有可调多色发射的掺铝可拉伸交流电致发光器件，用于图案显示

可拉伸的交流电致发光（ACEL）器件发出多种颜色是必不可少的软电子和显示。然而，传统的ACEL器件在颜色可调性和可拉伸性方面面临着重大挑战。本研究将三（8-羟基喹啉）铝（Alq3）引入到发射层中，构建了多色ACEL器件，通过调节Alq3与zns基荧光粉的质量比，实现了从蓝到红（464-588 nm）的颜色可调发射。将聚二甲基硅氧烷作为柔性基体，银纳米线作为可拉伸电极，使器件具有高达240%的机械拉伸性，同时在50%应变下保持稳定的发射。结构和光物理表征证实Alq3的加入不会影响荧光粉的结晶度，而是通过电荷转移调节发光。图案多色显示阵列和可定制的“CMSOD”标志已经制造出来，突出了在信息显示方面的潜在应用。这项工作提出了一种通过有机-无机混合材料制造具有可调谐颜色输出的可拉伸ACEL器件的简单方法，为具有彩色显示的软光电子器件提供了一种替代ACEL器件。

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来源期刊

FlatChem Multiple-

CiteScore

8.40

自引率

6.50%

发文量

104

审稿时长

26 days

期刊介绍： FlatChem - Chemistry of Flat Materials, a new voice in the community, publishes original and significant, cutting-edge research related to the chemistry of graphene and related 2D & layered materials. The overall aim of the journal is to combine the chemistry and applications of these materials, where the submission of communications, full papers, and concepts should contain chemistry in a materials context, which can be both experimental and/or theoretical. In addition to original research articles, FlatChem also offers reviews, minireviews, highlights and perspectives on the future of this research area with the scientific leaders in fields related to Flat Materials. Topics of interest include, but are not limited to, the following: -Design, synthesis, applications and investigation of graphene, graphene related materials and other 2D & layered materials (for example Silicene, Germanene, Phosphorene, MXenes, Boron nitride, Transition metal dichalcogenides) -Characterization of these materials using all forms of spectroscopy and microscopy techniques -Chemical modification or functionalization and dispersion of these materials, as well as interactions with other materials -Exploring the surface chemistry of these materials for applications in: Sensors or detectors in electrochemical/Lab on a Chip devices, Composite materials, Membranes, Environment technology, Catalysis for energy storage and conversion (for example fuel cells, supercapacitors, batteries, hydrogen storage), Biomedical technology (drug delivery, biosensing, bioimaging)