The Experts below are selected from a list of 14109 Experts worldwide ranked by ideXlab platform

Xiaogang Peng - One of the best experts on this subject based on the ideXlab platform.

  • solution processed high performance light emitting diodes based on quantum Dots
    Nature, 2014
    Co-Authors: Zhenxing Zhang, Xiaoyong Liang, Liwei Chen, Jianpu Wang, Xiaogang Peng
    Abstract:

    The insertion of an insulating Layer into a multiLayer light-emitting diode (LED) based on quantum Dots and produced by depositing the Layers from solution increases the performance of the LEDs to levels comparable to those of state-of-the-art organic LEDs produced by vacuum deposition, while retaining the advantages of solution processing. Light-emitting diodes (LEDs) form the basis of many modern display and solid-state lighting technologies. LEDs that can be processed from solution are especially appealing as they offer the potential for low-cost, large-area fabrication on a variety of substrates. Solution-processed diodes are generally less efficient that their vacuum-deposited counterparts, but Xiaogang Peng and colleagues now show how subtle changes in device architecture can be used to enhance the performance of solution-processed quantum-Dot LEDs. By inserting an insulating Layer into a solution-processed multiLayer LED, the authors achieve performance levels comparable to those of state-of-the-art organic LEDs produced by vacuum deposition, while retaining the advantages of solution processing. Solution-processed optoelectronic and electronic devices are attractive owing to the potential for low-cost fabrication of large-area devices and the compatibility with lightweight, flexible plastic substrates. Solution-processed light-emitting diodes (LEDs) using conjugated polymers or quantum Dots as emitters have attracted great interest over the past two decades1,2. However, the overall performance of solution-processed LEDs2,3,4,5—including their efficiency, efficiency roll-off at high current densities, turn-on voltage and lifetime under operational conditions—remains inferior to that of the best vacuum-deposited organic LEDs6,7,8. Here we report a solution-processed, multiLayer quantum-Dot-based LED with excellent performance and reproducibility. It exhibits colour-saturated deep-red emission, sub-bandgap turn-on at 1.7 volts, high external quantum efficiencies of up to 20.5 per cent, low efficiency roll-off (up to 15.1 per cent of the external quantum efficiency at 100 mA cm−2), and a long operational lifetime of more than 100,000 hours at 100 cd m−2, making this device the best-performing solution-processed red LED so far, comparable to state-of-the-art vacuum-deposited organic LEDs2,3,4,5,6,7,8. This optoelectronic performance is achieved by inserting an insulating Layer between the quantum Dot Layer and the oxide electron-transport Layer to optimize charge balance in the device and preserve the superior emissive properties of the quantum Dots. We anticipate that our results will be a starting point for further research, leading to high-performance, all-solution-processed quantum-Dot-based LEDs ideal for next-generation display and solid-state lighting technologies.

  • Solution-processed, high-performance light-emitting diodes based on quantum Dots
    Nature, 2014
    Co-Authors: Xingliang Dai, Hujia Cao, Yizheng Jin, Yuan Niu, Xiaoyong Liang, Zhenxing Zhang, Liwei Chen, Jianpu Wang, Xiaogang Peng
    Abstract:

    Solution-processed optoelectronic and electronic devices are attractive owing to the potential for low-cost fabrication of large-area devices and the compatibility with lightweight, flexible plastic substrates. Solution-processed light-emitting diodes (LEDs) using conjugated polymers or quantum Dots as emitters have attracted great interest over the past two decades(1,2). However, the overall performance of solution-processed LEDs(2-5)-including their efficiency, efficiency roll-off at high current densities, turn-on voltage and lifetime under operational conditions-remains inferior to that of the best vacuum deposited organic LEDs(6-8). Here we report a solution-processed, multiLayer quantum-Dot-based LED with excellent performance and reproducibility. It exhibits colour-saturated deep-redemission, subband gap turn-on at 1.7 volts, high external quantum efficiencies of up to 20.5 per cent, low efficiency roll-off (up to 15.1 per cent of the external quantum efficiency at 100 mA cm(-2)), anda long operational lifetime of more than 100,000 hours at 100 cd m(-2), making this device the best-performing solution-processed red LED so far, comparable to state-of-the-art vacuum-deposited organic LEDs(2-8). This optoelectronic performance is achieved by inserting an insulating Layer between the quantum Dot Layer and the oxide electron-transport Layer to optimize charge balance in the device and preserve the superior emissive properties of the quantum Dots. We anticipate that our results will be a starting point for further research, leading to high-performance, all-solution-processed quantum-Dot-based LEDs ideal for next-generation display and solid-state lighting technologies.

Zhenxing Zhang - One of the best experts on this subject based on the ideXlab platform.

  • solution processed high performance light emitting diodes based on quantum Dots
    Nature, 2014
    Co-Authors: Zhenxing Zhang, Xiaoyong Liang, Liwei Chen, Jianpu Wang, Xiaogang Peng
    Abstract:

    The insertion of an insulating Layer into a multiLayer light-emitting diode (LED) based on quantum Dots and produced by depositing the Layers from solution increases the performance of the LEDs to levels comparable to those of state-of-the-art organic LEDs produced by vacuum deposition, while retaining the advantages of solution processing. Light-emitting diodes (LEDs) form the basis of many modern display and solid-state lighting technologies. LEDs that can be processed from solution are especially appealing as they offer the potential for low-cost, large-area fabrication on a variety of substrates. Solution-processed diodes are generally less efficient that their vacuum-deposited counterparts, but Xiaogang Peng and colleagues now show how subtle changes in device architecture can be used to enhance the performance of solution-processed quantum-Dot LEDs. By inserting an insulating Layer into a solution-processed multiLayer LED, the authors achieve performance levels comparable to those of state-of-the-art organic LEDs produced by vacuum deposition, while retaining the advantages of solution processing. Solution-processed optoelectronic and electronic devices are attractive owing to the potential for low-cost fabrication of large-area devices and the compatibility with lightweight, flexible plastic substrates. Solution-processed light-emitting diodes (LEDs) using conjugated polymers or quantum Dots as emitters have attracted great interest over the past two decades1,2. However, the overall performance of solution-processed LEDs2,3,4,5—including their efficiency, efficiency roll-off at high current densities, turn-on voltage and lifetime under operational conditions—remains inferior to that of the best vacuum-deposited organic LEDs6,7,8. Here we report a solution-processed, multiLayer quantum-Dot-based LED with excellent performance and reproducibility. It exhibits colour-saturated deep-red emission, sub-bandgap turn-on at 1.7 volts, high external quantum efficiencies of up to 20.5 per cent, low efficiency roll-off (up to 15.1 per cent of the external quantum efficiency at 100 mA cm−2), and a long operational lifetime of more than 100,000 hours at 100 cd m−2, making this device the best-performing solution-processed red LED so far, comparable to state-of-the-art vacuum-deposited organic LEDs2,3,4,5,6,7,8. This optoelectronic performance is achieved by inserting an insulating Layer between the quantum Dot Layer and the oxide electron-transport Layer to optimize charge balance in the device and preserve the superior emissive properties of the quantum Dots. We anticipate that our results will be a starting point for further research, leading to high-performance, all-solution-processed quantum-Dot-based LEDs ideal for next-generation display and solid-state lighting technologies.

  • Solution-processed, high-performance light-emitting diodes based on quantum Dots
    Nature, 2014
    Co-Authors: Xingliang Dai, Hujia Cao, Yizheng Jin, Yuan Niu, Xiaoyong Liang, Zhenxing Zhang, Liwei Chen, Jianpu Wang, Xiaogang Peng
    Abstract:

    Solution-processed optoelectronic and electronic devices are attractive owing to the potential for low-cost fabrication of large-area devices and the compatibility with lightweight, flexible plastic substrates. Solution-processed light-emitting diodes (LEDs) using conjugated polymers or quantum Dots as emitters have attracted great interest over the past two decades(1,2). However, the overall performance of solution-processed LEDs(2-5)-including their efficiency, efficiency roll-off at high current densities, turn-on voltage and lifetime under operational conditions-remains inferior to that of the best vacuum deposited organic LEDs(6-8). Here we report a solution-processed, multiLayer quantum-Dot-based LED with excellent performance and reproducibility. It exhibits colour-saturated deep-redemission, subband gap turn-on at 1.7 volts, high external quantum efficiencies of up to 20.5 per cent, low efficiency roll-off (up to 15.1 per cent of the external quantum efficiency at 100 mA cm(-2)), anda long operational lifetime of more than 100,000 hours at 100 cd m(-2), making this device the best-performing solution-processed red LED so far, comparable to state-of-the-art vacuum-deposited organic LEDs(2-8). This optoelectronic performance is achieved by inserting an insulating Layer between the quantum Dot Layer and the oxide electron-transport Layer to optimize charge balance in the device and preserve the superior emissive properties of the quantum Dots. We anticipate that our results will be a starting point for further research, leading to high-performance, all-solution-processed quantum-Dot-based LEDs ideal for next-generation display and solid-state lighting technologies.

Jianpu Wang - One of the best experts on this subject based on the ideXlab platform.

  • solution processed high performance light emitting diodes based on quantum Dots
    Nature, 2014
    Co-Authors: Zhenxing Zhang, Xiaoyong Liang, Liwei Chen, Jianpu Wang, Xiaogang Peng
    Abstract:

    The insertion of an insulating Layer into a multiLayer light-emitting diode (LED) based on quantum Dots and produced by depositing the Layers from solution increases the performance of the LEDs to levels comparable to those of state-of-the-art organic LEDs produced by vacuum deposition, while retaining the advantages of solution processing. Light-emitting diodes (LEDs) form the basis of many modern display and solid-state lighting technologies. LEDs that can be processed from solution are especially appealing as they offer the potential for low-cost, large-area fabrication on a variety of substrates. Solution-processed diodes are generally less efficient that their vacuum-deposited counterparts, but Xiaogang Peng and colleagues now show how subtle changes in device architecture can be used to enhance the performance of solution-processed quantum-Dot LEDs. By inserting an insulating Layer into a solution-processed multiLayer LED, the authors achieve performance levels comparable to those of state-of-the-art organic LEDs produced by vacuum deposition, while retaining the advantages of solution processing. Solution-processed optoelectronic and electronic devices are attractive owing to the potential for low-cost fabrication of large-area devices and the compatibility with lightweight, flexible plastic substrates. Solution-processed light-emitting diodes (LEDs) using conjugated polymers or quantum Dots as emitters have attracted great interest over the past two decades1,2. However, the overall performance of solution-processed LEDs2,3,4,5—including their efficiency, efficiency roll-off at high current densities, turn-on voltage and lifetime under operational conditions—remains inferior to that of the best vacuum-deposited organic LEDs6,7,8. Here we report a solution-processed, multiLayer quantum-Dot-based LED with excellent performance and reproducibility. It exhibits colour-saturated deep-red emission, sub-bandgap turn-on at 1.7 volts, high external quantum efficiencies of up to 20.5 per cent, low efficiency roll-off (up to 15.1 per cent of the external quantum efficiency at 100 mA cm−2), and a long operational lifetime of more than 100,000 hours at 100 cd m−2, making this device the best-performing solution-processed red LED so far, comparable to state-of-the-art vacuum-deposited organic LEDs2,3,4,5,6,7,8. This optoelectronic performance is achieved by inserting an insulating Layer between the quantum Dot Layer and the oxide electron-transport Layer to optimize charge balance in the device and preserve the superior emissive properties of the quantum Dots. We anticipate that our results will be a starting point for further research, leading to high-performance, all-solution-processed quantum-Dot-based LEDs ideal for next-generation display and solid-state lighting technologies.

  • Solution-processed, high-performance light-emitting diodes based on quantum Dots
    Nature, 2014
    Co-Authors: Xingliang Dai, Hujia Cao, Yizheng Jin, Yuan Niu, Xiaoyong Liang, Zhenxing Zhang, Liwei Chen, Jianpu Wang, Xiaogang Peng
    Abstract:

    Solution-processed optoelectronic and electronic devices are attractive owing to the potential for low-cost fabrication of large-area devices and the compatibility with lightweight, flexible plastic substrates. Solution-processed light-emitting diodes (LEDs) using conjugated polymers or quantum Dots as emitters have attracted great interest over the past two decades(1,2). However, the overall performance of solution-processed LEDs(2-5)-including their efficiency, efficiency roll-off at high current densities, turn-on voltage and lifetime under operational conditions-remains inferior to that of the best vacuum deposited organic LEDs(6-8). Here we report a solution-processed, multiLayer quantum-Dot-based LED with excellent performance and reproducibility. It exhibits colour-saturated deep-redemission, subband gap turn-on at 1.7 volts, high external quantum efficiencies of up to 20.5 per cent, low efficiency roll-off (up to 15.1 per cent of the external quantum efficiency at 100 mA cm(-2)), anda long operational lifetime of more than 100,000 hours at 100 cd m(-2), making this device the best-performing solution-processed red LED so far, comparable to state-of-the-art vacuum-deposited organic LEDs(2-8). This optoelectronic performance is achieved by inserting an insulating Layer between the quantum Dot Layer and the oxide electron-transport Layer to optimize charge balance in the device and preserve the superior emissive properties of the quantum Dots. We anticipate that our results will be a starting point for further research, leading to high-performance, all-solution-processed quantum-Dot-based LEDs ideal for next-generation display and solid-state lighting technologies.

Liwei Chen - One of the best experts on this subject based on the ideXlab platform.

  • solution processed high performance light emitting diodes based on quantum Dots
    Nature, 2014
    Co-Authors: Zhenxing Zhang, Xiaoyong Liang, Liwei Chen, Jianpu Wang, Xiaogang Peng
    Abstract:

    The insertion of an insulating Layer into a multiLayer light-emitting diode (LED) based on quantum Dots and produced by depositing the Layers from solution increases the performance of the LEDs to levels comparable to those of state-of-the-art organic LEDs produced by vacuum deposition, while retaining the advantages of solution processing. Light-emitting diodes (LEDs) form the basis of many modern display and solid-state lighting technologies. LEDs that can be processed from solution are especially appealing as they offer the potential for low-cost, large-area fabrication on a variety of substrates. Solution-processed diodes are generally less efficient that their vacuum-deposited counterparts, but Xiaogang Peng and colleagues now show how subtle changes in device architecture can be used to enhance the performance of solution-processed quantum-Dot LEDs. By inserting an insulating Layer into a solution-processed multiLayer LED, the authors achieve performance levels comparable to those of state-of-the-art organic LEDs produced by vacuum deposition, while retaining the advantages of solution processing. Solution-processed optoelectronic and electronic devices are attractive owing to the potential for low-cost fabrication of large-area devices and the compatibility with lightweight, flexible plastic substrates. Solution-processed light-emitting diodes (LEDs) using conjugated polymers or quantum Dots as emitters have attracted great interest over the past two decades1,2. However, the overall performance of solution-processed LEDs2,3,4,5—including their efficiency, efficiency roll-off at high current densities, turn-on voltage and lifetime under operational conditions—remains inferior to that of the best vacuum-deposited organic LEDs6,7,8. Here we report a solution-processed, multiLayer quantum-Dot-based LED with excellent performance and reproducibility. It exhibits colour-saturated deep-red emission, sub-bandgap turn-on at 1.7 volts, high external quantum efficiencies of up to 20.5 per cent, low efficiency roll-off (up to 15.1 per cent of the external quantum efficiency at 100 mA cm−2), and a long operational lifetime of more than 100,000 hours at 100 cd m−2, making this device the best-performing solution-processed red LED so far, comparable to state-of-the-art vacuum-deposited organic LEDs2,3,4,5,6,7,8. This optoelectronic performance is achieved by inserting an insulating Layer between the quantum Dot Layer and the oxide electron-transport Layer to optimize charge balance in the device and preserve the superior emissive properties of the quantum Dots. We anticipate that our results will be a starting point for further research, leading to high-performance, all-solution-processed quantum-Dot-based LEDs ideal for next-generation display and solid-state lighting technologies.

  • Solution-processed, high-performance light-emitting diodes based on quantum Dots
    Nature, 2014
    Co-Authors: Xingliang Dai, Hujia Cao, Yizheng Jin, Yuan Niu, Xiaoyong Liang, Zhenxing Zhang, Liwei Chen, Jianpu Wang, Xiaogang Peng
    Abstract:

    Solution-processed optoelectronic and electronic devices are attractive owing to the potential for low-cost fabrication of large-area devices and the compatibility with lightweight, flexible plastic substrates. Solution-processed light-emitting diodes (LEDs) using conjugated polymers or quantum Dots as emitters have attracted great interest over the past two decades(1,2). However, the overall performance of solution-processed LEDs(2-5)-including their efficiency, efficiency roll-off at high current densities, turn-on voltage and lifetime under operational conditions-remains inferior to that of the best vacuum deposited organic LEDs(6-8). Here we report a solution-processed, multiLayer quantum-Dot-based LED with excellent performance and reproducibility. It exhibits colour-saturated deep-redemission, subband gap turn-on at 1.7 volts, high external quantum efficiencies of up to 20.5 per cent, low efficiency roll-off (up to 15.1 per cent of the external quantum efficiency at 100 mA cm(-2)), anda long operational lifetime of more than 100,000 hours at 100 cd m(-2), making this device the best-performing solution-processed red LED so far, comparable to state-of-the-art vacuum-deposited organic LEDs(2-8). This optoelectronic performance is achieved by inserting an insulating Layer between the quantum Dot Layer and the oxide electron-transport Layer to optimize charge balance in the device and preserve the superior emissive properties of the quantum Dots. We anticipate that our results will be a starting point for further research, leading to high-performance, all-solution-processed quantum-Dot-based LEDs ideal for next-generation display and solid-state lighting technologies.

Xiaoyong Liang - One of the best experts on this subject based on the ideXlab platform.

  • solution processed high performance light emitting diodes based on quantum Dots
    Nature, 2014
    Co-Authors: Zhenxing Zhang, Xiaoyong Liang, Liwei Chen, Jianpu Wang, Xiaogang Peng
    Abstract:

    The insertion of an insulating Layer into a multiLayer light-emitting diode (LED) based on quantum Dots and produced by depositing the Layers from solution increases the performance of the LEDs to levels comparable to those of state-of-the-art organic LEDs produced by vacuum deposition, while retaining the advantages of solution processing. Light-emitting diodes (LEDs) form the basis of many modern display and solid-state lighting technologies. LEDs that can be processed from solution are especially appealing as they offer the potential for low-cost, large-area fabrication on a variety of substrates. Solution-processed diodes are generally less efficient that their vacuum-deposited counterparts, but Xiaogang Peng and colleagues now show how subtle changes in device architecture can be used to enhance the performance of solution-processed quantum-Dot LEDs. By inserting an insulating Layer into a solution-processed multiLayer LED, the authors achieve performance levels comparable to those of state-of-the-art organic LEDs produced by vacuum deposition, while retaining the advantages of solution processing. Solution-processed optoelectronic and electronic devices are attractive owing to the potential for low-cost fabrication of large-area devices and the compatibility with lightweight, flexible plastic substrates. Solution-processed light-emitting diodes (LEDs) using conjugated polymers or quantum Dots as emitters have attracted great interest over the past two decades1,2. However, the overall performance of solution-processed LEDs2,3,4,5—including their efficiency, efficiency roll-off at high current densities, turn-on voltage and lifetime under operational conditions—remains inferior to that of the best vacuum-deposited organic LEDs6,7,8. Here we report a solution-processed, multiLayer quantum-Dot-based LED with excellent performance and reproducibility. It exhibits colour-saturated deep-red emission, sub-bandgap turn-on at 1.7 volts, high external quantum efficiencies of up to 20.5 per cent, low efficiency roll-off (up to 15.1 per cent of the external quantum efficiency at 100 mA cm−2), and a long operational lifetime of more than 100,000 hours at 100 cd m−2, making this device the best-performing solution-processed red LED so far, comparable to state-of-the-art vacuum-deposited organic LEDs2,3,4,5,6,7,8. This optoelectronic performance is achieved by inserting an insulating Layer between the quantum Dot Layer and the oxide electron-transport Layer to optimize charge balance in the device and preserve the superior emissive properties of the quantum Dots. We anticipate that our results will be a starting point for further research, leading to high-performance, all-solution-processed quantum-Dot-based LEDs ideal for next-generation display and solid-state lighting technologies.

  • Solution-processed, high-performance light-emitting diodes based on quantum Dots
    Nature, 2014
    Co-Authors: Xingliang Dai, Hujia Cao, Yizheng Jin, Yuan Niu, Xiaoyong Liang, Zhenxing Zhang, Liwei Chen, Jianpu Wang, Xiaogang Peng
    Abstract:

    Solution-processed optoelectronic and electronic devices are attractive owing to the potential for low-cost fabrication of large-area devices and the compatibility with lightweight, flexible plastic substrates. Solution-processed light-emitting diodes (LEDs) using conjugated polymers or quantum Dots as emitters have attracted great interest over the past two decades(1,2). However, the overall performance of solution-processed LEDs(2-5)-including their efficiency, efficiency roll-off at high current densities, turn-on voltage and lifetime under operational conditions-remains inferior to that of the best vacuum deposited organic LEDs(6-8). Here we report a solution-processed, multiLayer quantum-Dot-based LED with excellent performance and reproducibility. It exhibits colour-saturated deep-redemission, subband gap turn-on at 1.7 volts, high external quantum efficiencies of up to 20.5 per cent, low efficiency roll-off (up to 15.1 per cent of the external quantum efficiency at 100 mA cm(-2)), anda long operational lifetime of more than 100,000 hours at 100 cd m(-2), making this device the best-performing solution-processed red LED so far, comparable to state-of-the-art vacuum-deposited organic LEDs(2-8). This optoelectronic performance is achieved by inserting an insulating Layer between the quantum Dot Layer and the oxide electron-transport Layer to optimize charge balance in the device and preserve the superior emissive properties of the quantum Dots. We anticipate that our results will be a starting point for further research, leading to high-performance, all-solution-processed quantum-Dot-based LEDs ideal for next-generation display and solid-state lighting technologies.