Two-Dimensional Stretchable Organic Light-Emitting Devices with High Efficiency

Yin, Da; Feng, Jing; Jiang, Nai‐Rong; Ma, Rui; Liu, Yuefeng; Sun, Hong–Bo

doi:10.1021/acsami.6b10328

Cited by 64 publications

(51 citation statements)

References 31 publications

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“…Narrowing and redshift occur during the stretching process, which is attributed to the micro-cavity effect. [18] Figure 4 shows the luminance, current density, and efficiency characteristics of the SOLED. The device at different stretching states exhibits comparable EL performance to a conventional planar device on Si substrate.…”

Section: Wwwadvopticalmatdementioning

confidence: 99%

“…They can keep working during 35 000 cycles of 20% stretching with only 5% current efficiency variation. To the best of our knowledge, this is the best mechanical stability of SOLEDs reported to date . The RAI technique is applicable to other stretchable organic electronic and optoelectronic devices and exhibits great potential toward the high‐throughput production of the stretchable electronics.…”

mentioning

confidence: 99%

“…Its EL spectra change with the increasing strain as shown in Figure S7 in the Supporting Information. Narrowing and redshift occur during the stretching process, which is attributed to the micro‐cavity effect . Figure shows the luminance, current density, and efficiency characteristics of the SOLED.…”

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confidence: 99%

“…The bending radii of the wrinkles are between 50 and 100 µm. The OLEDs in a state of tension are still working efficiently, which can be attributed to their small bending strain . The largest luminance of the SOLED is 15 110 cd m −2 and its current efficiency reaches 66 cd A −1 .…”

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confidence: 99%

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Organic light-emitting devices (OLEDs) have been considered as very promising candidates for stretchable devices because of their outstanding properties, such as high efficiency, high flexibility, color tunability, and high contrast for displays. [9][10][11][12][13][14] Recently, significant progresses have been made in stretchable OLEDs (SOLEDs), including OLEDs array connected by stretchable wires, [6] intrinsically stretchable polymer LEDs, [15][16][17] and wrinkles-based SOLEDs, [1][2][3]18,19] which have been summarized systematically by Qian and co-workers. [20] Stretchability, efficiency, and mechanical stability are surely key issues for practical application of the SOLEDs.

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confidence: 99%

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Roller‐Assisted Adhesion Imprinting for High‐Throughput Manufacturing of Wearable and Stretchable Organic Light‐Emitting Devices

Yin

Jiang

Chen

et al. 2019

Advanced Optical Materials

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Stretchable organic optoelectronic devices have been developed rapidly in the last few years due to their great potential in wearable electronics. Although high performance is obtained, high‐throughput manufacturing of these devices is still a challenge for their commercial application. Here, a roller‐assisted adhesion imprinting (RAI) technique is developed to overcome this challenge by rapid production of ordered and large‐area wrinkled structures on organic optoelectronic devices to enable their stretchability. Different from the conventional imprinting technology requiring heating or ultraviolet treatment, adhesion force is employed innovatively in the RAI process to form microstructures within the imprinted materials. As a demonstration, a stretchable wrinkled structure with its length of more than 10 cm is rapidly fabricated and larger area is available by continuous imprinting. Stretchable organic light‐emitting devices (SOLEDs) are easily manufactured by the RAI process. The SOLEDs can be elongated to 100% strain and keep working with 5% current efficiency variation after 35 000 cycles of stretching with 20% tensile strain. This is the best mechanical stability of SOLEDs reported to date. The development of the high‐throughput, large‐area, and cost‐effective RAI technique provides potential roll‐to‐roll continuous production of stretchable electronics.

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Section: Wwwadvopticalmatdementioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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confidence: 99%

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confidence: 99%

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Roller‐Assisted Adhesion Imprinting for High‐Throughput Manufacturing of Wearable and Stretchable Organic Light‐Emitting Devices

Yin

Jiang

Chen

et al. 2019

Advanced Optical Materials

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Skin Electronics: Next‐Generation Device Platform for Virtual and Augmented Reality

Kim

Wang

et al. 2021

Adv Funct Materials

116

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Virtual reality (VR) and augmented reality (AR) are overcoming the physical limits of real‐life using advances in devices and software. In particular, the recent restrictions in transportation from the coronavirus disease 2019 (COVID‐19) pandemic are making people more interested in these virtual experiences. However, to minimize the differences between artificial and natural perception, more human‐interactive and human‐like devices are necessary. The skin is the largest organ of the human body and interacts with the environment as the site of interfacing and sensing. Recent progress in skin electronics has enabled the use of the skin as the mounting object of functional devices and the signal pathway bridging humans and computers, with opening its potential in future VR and AR applications. In this review, the current skin electronics are summarized as one of the most promising device solutions for future VR/AR devices, especially focusing on the recent materials and structures. After defining and explaining VR/AR systems and the components, the advantages of skin electronics for VR/AR applications are emphasized. Next, the detailed functionalities of skin electronic devices, including the input, output, energy devices, and integrated systems, are reviewed for future VR/AR applications.

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Stretchable Organometal‐Halide‐Perovskite Quantum‐Dot Light‐Emitting Diodes

Chou

Huang

et al. 2019

Advanced Materials

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Stretchable light‐emitting diodes (LEDs) and electroluminescent capacitors have been reported to potentially bring new opportunities to wearable electronics; however, these devices lack in efficiency and/or stretchability. Here, a stretchable organometal‐halide‐perovskite quantum‐dot LED with both high efficiency and mechanical compliancy is demonstrated. The hybrid device employs an ultrathin (<3 µm) LED structure conformed on a surface‐wrinkled elastomer substrate. Its luminescent efficiency is up to 9.2 cd A−1, which is 70% higher than a control diode fabricated on the rigid indium tin oxide/glass substrate. Mechanical deformations up to 50% tensile strain do not induce significant loss of the electroluminescent property. The device can survive 1000 stretch–release cycles of 20% tensile strain with small fluctuations in electroluminescent performance.

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Two-Dimensional Stretchable Organic Light-Emitting Devices with High Efficiency

Cited by 64 publications

References 31 publications

Roller‐Assisted Adhesion Imprinting for High‐Throughput Manufacturing of Wearable and Stretchable Organic Light‐Emitting Devices

Roller‐Assisted Adhesion Imprinting for High‐Throughput Manufacturing of Wearable and Stretchable Organic Light‐Emitting Devices

Skin Electronics: Next‐Generation Device Platform for Virtual and Augmented Reality

Stretchable Organometal‐Halide‐Perovskite Quantum‐Dot Light‐Emitting Diodes

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