Wearable red–green–blue quantum dot light-emitting diode array using high-resolution intaglio transfer printing Highly Cited Paper

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Title
Wearable red–green–blue quantum dot light-emitting diode array using high-resolution intaglio transfer printing
Author(s)
Moon Kee Choi; Jiwoong Yang; Kwanghun Kang; Dong Chan Kim; Changsoon Choi; Chaneui Park; Seok Joo Kim; Sue In Chae; Taeho Kim; Ji-Hoon Kim; Taeghwan Hyeon; Dae-Hyeong Kim
Publication Date
2015-05
Journal
NATURE COMMUNICATIONS, v.6, no., pp.7149 - 7157
Publisher
NATURE PUBLISHING GROUP
Abstract
Deformable full-colour light-emitting diodes with ultrafine pixels are essential for wearable electronics, which requires the conformal integration on curvilinear surface as well as retina-like high-definition displays. However, there are remaining challenges in terms of polychromatic configuration, electroluminescence efficiency and/or multidirectional deformability. Here we present ultra-thin, wearable colloidal quantum dot light-emitting diode arrays utilizing the intaglio transfer printing technique, which allows the alignment of red–green–blue pixels with high resolutions up to 2,460 pixels per inch. This technique is readily scalable and adaptable for low-voltage-driven pixelated white quantum dot lightemitting diodes and electronic tattoos, showing the best electroluminescence performance (14,000 cdm2 at 7V) among the wearable light-emitting diodes reported up to date. The device performance is stable on flat, curved and convoluted surfaces under mechanical deformations such as bending, crumpling and wrinkling. These deformable device arrays highlight new possibilities for integrating high-definition full-colour displays in wearable electronics.
URI
https://pr.ibs.re.kr/handle/8788114/2035
ISSN
2041-1723
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
Files in This Item:
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