Patternable and Widely Colour-Tunable Elastomer-Based Electroluminescent Devices

We demonstrate wide colour tunability of polydimethylsiloxane-based alternating-current-driven electroluminescent devices with intrinsically stretchable characteristics achieved by simply modulating the electrical frequency. By employing both a screen-printed emitting layer and frequency-dependent c...

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Bibliographic Details
Published in:Scientific reports 2018-02, Vol.8 (1), p.3331-10, Article 3331
Main Authors: Song, Seongkyu, Shim, Hyunseok, Lim, Sang Kyoo, Jeong, Soon Moon
Format: Article
Language:English
Subjects:
Color
Electric fields
Frequency dependence
Polydimethylsiloxane
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Summary:We demonstrate wide colour tunability of polydimethylsiloxane-based alternating-current-driven electroluminescent devices with intrinsically stretchable characteristics achieved by simply modulating the electrical frequency. By employing both a screen-printed emitting layer and frequency-dependent colour tuning of ZnS:Cu-based phosphors, we demonstrate various coloured patterned images in a single device. We also show enhanced colour-tuning performance by mixing multi-colour phosphors, which results in a broad range of available coordinates in colour space. We believe that our demonstrated method could be used for manipulating broader colour expression as well as in various applications involving stretchable devices.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-018-21726-x