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Up-Conversion Device Based on Quantum Dots With High-Conversion Efficiency Over 6%
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DOI：10.1109/ACCESS.2020.2987043.png)
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Near infrared to visible up-conversion devices have every growing demand in a myriad of industrial sectors including photovoltaics, energy harvesting, medicine and imaging. Here we have demonstrated an up-conversion device which utilizes quantum dots for both infrared absorption and visible emission. The band structure of the device is designed and optimized with well-constructed carrier transport and blocking layers. The achieved up-conversion device exhibits an impressive conversion efficiency of over 6%, with a high near infrared on-off ratio of over 10(4). The device demonstrates a potential new approach for an up-conversion device designed solely on quantum dots with high efficiency.
Keyword:
II-VI semiconductor materials
Density measurement
Power system measurements
Charge carrier processes
Lighting
Cadmium compounds
Zinc oxide
NIR-visible up-conversion device
quantum dots
solution-processed
期刊
IF:
3.6
论文数:
9.8W
被引数:
29.4W
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