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Near infrared to visible light organic up-conversion devices with photon-to-photon conversion efficiency approaching 30%†
Materials Horizons ( IF 12.2 ) Pub Date : 2018-07-03 00:00:00 , DOI: 10.1039/c8mh00572a Dezhi Yang 1, 2, 3, 4, 5 , Xiaokang Zhou 1, 2, 3, 4, 5 , Dongge Ma 1, 2, 3, 4, 5 , Agafonov Vadim 6, 7 , Tansir Ahamad 8, 9, 10, 11 , Saad M. Alshehri 8, 9, 10, 11
Materials Horizons ( IF 12.2 ) Pub Date : 2018-07-03 00:00:00 , DOI: 10.1039/c8mh00572a Dezhi Yang 1, 2, 3, 4, 5 , Xiaokang Zhou 1, 2, 3, 4, 5 , Dongge Ma 1, 2, 3, 4, 5 , Agafonov Vadim 6, 7 , Tansir Ahamad 8, 9, 10, 11 , Saad M. Alshehri 8, 9, 10, 11
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Near infrared to visible light organic up-conversion devices have drawn more and more attention for their advantages of low cost, large area, flexible and easy processing. However, the photon-to-photon conversion efficiency is still a challenge for practical application. Here, high-performance near infrared to visible light organic up-conversion devices were developed by integrating a near-infrared polymer photodetector and a green tandem organic light emitting diode. The integrated devices showed a peak photon-to-photon conversion efficiency up to 29.6%, which is among the highest reported values. Comprehensive studies on the both optical and electrical interaction between the light absorption unit and the light emission unit in the integrated devices revealed that the more than doubled electron-to-photon conversion quantum efficiency was obtained through the photo-multiplication effect of tandem OLEDs. Furthermore, large area and flexible up-conversion devices with the same structure were also fabricated, showing a better imaging performance than the commercial IR detection card.
中文翻译：
近红外到可见光的有机上转换器件，光子到光子的转换效率接近30％†
近红外到可见光的有机上转换器件以其低成本，大面积，灵活和易于加工的优点而受到越来越多的关注。然而，光子到光子的转换效率对于实际应用仍然是一个挑战。在这里，通过集成近红外聚合物光电探测器和绿色串联有机发光二极管，开发了高性能近红外到可见光的有机上转换器件。集成器件显示出高达29.6％的峰值光子到光子转换效率，这是最高的报告值之一。对集成器件中光吸收单元和发光单元之间的光学和电学相互作用的综合研究表明，通过串联OLED的光电倍增效应，电子到光子转换的量子效率提高了两倍以上。此外，还制造了具有相同结构的大面积且柔性的上转换装置，其显示出比商用IR检测卡更好的成像性能。
更新日期：2018-07-03
中文翻译：
近红外到可见光的有机上转换器件，光子到光子的转换效率接近30％†
近红外到可见光的有机上转换器件以其低成本，大面积，灵活和易于加工的优点而受到越来越多的关注。然而，光子到光子的转换效率对于实际应用仍然是一个挑战。在这里，通过集成近红外聚合物光电探测器和绿色串联有机发光二极管，开发了高性能近红外到可见光的有机上转换器件。集成器件显示出高达29.6％的峰值光子到光子转换效率，这是最高的报告值之一。对集成器件中光吸收单元和发光单元之间的光学和电学相互作用的综合研究表明，通过串联OLED的光电倍增效应，电子到光子转换的量子效率提高了两倍以上。此外，还制造了具有相同结构的大面积且柔性的上转换装置，其显示出比商用IR检测卡更好的成像性能。
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