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SWIR Photodetection and Visualization Realized by Incorporating an Organic SWIR Sensitive Bulk Heterojunction.
Advanced Science ( IF 14.3 ) Pub Date : 2020-05-29 , DOI: 10.1002/advs.202000444
Ning Li 1 , Zhaojue Lan 1 , Ying Suet Lau 1 , Jiajun Xie 2 , Dahui Zhao 2 , Furong Zhu 1
Affiliation  

Short‐wavelength infrared (SWIR) photodetection and visualization has profound impacts on different applications. In this work, a large‐area organic SWIR photodetector (PD) that is sensitive to SWIR light over a wavelength range from 1000 to 1600 nm and a SWIR visualization device that is capable of upconverting SWIR to visible light are developed. The organic SWIR PD, comprising an organic SWIR sensitive blend of a near‐infrared polymer and a nonfullerene n‐type small molecule SWIR dye, demonstrates an excellent capability for real‐time heart rate monitoring, offering an attractive opportunity for portable and wearable healthcare gadgets. The SWIR‐to‐visible upconversion device is also demonstrated by monolithic integration of an organic SWIR PD and a perovskite light‐emitting diode, converting SWIR (1050 nm) to visible light (516 nm). The most important attribute of the SWIR visualizing device is its solution fabrication capability for large‐area SWIR detection and visualization at a low cost. The results are very encouraging, revealing the exciting large‐area SWIR photodetection and visualization for a plethora of applications in environmental pollution, surveillance, bioimaging, medical, automotive, food, and wellness monitoring.

中文翻译:

通过结合有机短波红外敏感体异质结实现短波红外光电检测和可视化。

短波红外(SWIR)光电探测和可视化对不同的应用具有深远的影响。在这项工作中,开发了一种对 1000 至 1600 nm 波长范围内的短波红外光敏感的大面积有机短波红外光电探测器 (PD) 和一种能够将短波红外上转换为可见光的短波红外可视化装置。有机 SWIR PD 由近红外聚合物和非富勒烯 n 型小分子 SWIR 染料的有机 SWIR 敏感混合物组成,具有出色的实时心率监测能力,为便携式和可穿戴医疗保健设备提供了有吸引力的机会。SWIR 到可见光的上转换器件还通过有机 SWIR PD 和钙钛矿发光二极管的单片集成进行了演示,将 SWIR (1050 nm) 转换为可见光 (516 nm)。SWIR可视化设备最重要的属性是其以低成本实现大面积SWIR检测和可视化的解决方案制造能力。结果非常令人鼓舞,揭示了令人兴奋的大面积短波红外光电探测和可视化在环境污染、监测、生物成像、医疗、汽车、食品和健康监测等领域的众多应用。
更新日期:2020-07-22
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