Full-colour quantum dot displays fabricated by transfer printing

Kim, Tae Ho; Cho, Kyoung Sang; Lee, Eun Kyung; Lee, Sang Jin; Chae, Jungseok; Kim, Jung Ho; Kim, Do Hwan; Kwon, Jang Yeon; Amaratunga, G.A.J.; Choi, Byoung Lyong; Kuk, Young; Kim, Jong Min; Kim, Kinam

doi:10.1038/nphoton.2011.12

Cited by 1,064 publications

(647 citation statements)

References 35 publications

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“…Currently, because of their excellent EL performance (see Fig. 3d, e for comparison), type (iv) devices using ZnO nanoparticles as ETLs have become a standard in the QLED research 48,52,97,98 including flexible devices. Another important benefit of these devices is the ultrathin form factor (hundreds of nanometers) of overall layers, which makes them suitable for flexible displays.…”

Section: Device Structure and Operation Principles Of Qledsmentioning

confidence: 99%

“…102 Later, the researchers at the Samsung Advanced Institute of Technology (SAIT) developed a kinetically controlled transfer-printing technology. 97 The spin-coated QD film was contacted with a structured stamp, quickly picked up from the self-assembled monolayer-treated donor substrate, and released onto the desired substrate (Fig. 4a).…”

Section: Patterning Technology Of Qds For Full-color Displaysmentioning

confidence: 99%

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Flexible quantum dot light-emitting diodes for next-generation displays

et al. 2018

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In the future electronics, all device components will be connected wirelessly to displays that serve as information input and/or output ports. There is a growing demand of flexible and wearable displays, therefore, for information input/output of the nextgeneration consumer electronics. Among many kinds of light-emitting devices for these next-generation displays, quantum dot light-emitting diodes (QLEDs) exhibit unique advantages, such as wide color gamut, high color purity, high brightness with low turn-on voltage, and ultrathin form factor. Here, we review the recent progress on flexible QLEDs for the next-generation displays. First, the recent technological advances in device structure engineering, quantum-dot synthesis, and high-resolution full-color patterning are summarized. Then, the various device applications based on cutting-edge quantum dot technologies are described, including flexible white QLEDs, wearable QLEDs, and flexible transparent QLEDs. Finally, we showcase the integration of flexible QLEDs with wearable sensors, micro-controllers, and wireless communication units for the next-generation wearable electronics.

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Section: Device Structure and Operation Principles Of Qledsmentioning

confidence: 99%

Section: Patterning Technology Of Qds For Full-color Displaysmentioning

confidence: 99%

Flexible quantum dot light-emitting diodes for next-generation displays

et al. 2018

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“…In particular, core/shell heterostructures with type I straddling band offset exhibiting high photoluminescence (PL) quantum yields show much promise in imaging 3 , lighting 4,5 and display [6][7][8][9][10][11] applications. Although type II staggered band offset materials have also been achieved and have been shown to allow efficient photoinduced charge separation [12][13][14][15][16] and improved light amplification 17,18 , to date, the highly luminescent type I core/shell heterostructure is the predominant choice in emerging nanocrystal-based products.…”

mentioning

confidence: 99%

Double-heterojunction nanorods

et al. 2014

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As semiconductor heterostructures play critical roles in today's electronics and optoelectronics, the introduction of active heterojunctions can impart new and improved capabilities that will enable the use of solution-processable colloidal quantum dots in future devices. Such heterojunctions incorporated into colloidal nanorods may be especially promising, since the inherent shape anisotropy can provide additional benefits of directionality and accessibility in band structure engineering and assembly. Here we develop doubleheterojunction nanorods where two distinct semiconductor materials with type II staggered band offset are both in contact with one smaller band gap material. The double heterojunction can provide independent control over the electron and hole injection/ extraction processes while maintaining high photoluminescence yields. Light-emitting diodes utilizing double-heterojunction nanorods as the electroluminescent layer are demonstrated with low threshold voltage, narrow bandwidth and high efficiencies.

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“…Nanocrystal quantum dots (NQDs) [1] exhibit narrow emissions upon a broad range of excitation wavelengths and high luminescence efficiencies, making them promising for use in various light-emitting applications, including displays [2][3][4][5][6][7][8][9][10][11], solar concentrators [12][13][14][15], and lasers [16][17][18]. In the last two decades, the structures of NQDs evolved into sophisticated heterostructures, boosting their optical performances and photophysical stabilities [19][20][21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Interfacial engineering of core/shell heterostructured nanocrystal quantum dots for light-emitting applications

Chang

Hahm

Char

et al. 2017

Journal of Information Display

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Reviewed in this paper is the recent progress on the interfacial engineering of core/shell heterostructured nanocrystal quantum dots (NQDs) for light-emitting applications, with focus on the composition (energy) gradient interfaces between the core and the shell. The engineered interfaces mitigate the structural stress between the core and the shell and thus reduce the chance to create misfit defects that act as efficient non-radiative recombination centers. In addition, the resultant smoothening of the potential profiles across the interfaces leads to the strong suppression of non-radiative Auger recombination. Efforts to engineer the interfacial structures further promote the optical performances of NQDs and benefit the light-emitting applications utilizing NQDs. ARTICLE HISTORY

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Full-colour quantum dot displays fabricated by transfer printing

Cited by 1,064 publications

References 35 publications

Flexible quantum dot light-emitting diodes for next-generation displays

Flexible quantum dot light-emitting diodes for next-generation displays

Double-heterojunction nanorods

Interfacial engineering of core/shell heterostructured nanocrystal quantum dots for light-emitting applications

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