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Flexible Miniaturized Multispectral Detector Derived from Blade-Coated Organic Narrowband Response Unit Array
ACS Nano ( IF 15.8 ) Pub Date : 2022-12-09 , DOI: 10.1021/acsnano.2c08731 Zeyao Han 1 , Xunfan Liao 2 , Yousheng Zou 1 , Yin He 1 , Junyu Li 1 , Yu Gu 1 , Dawei Hu 1 , Jiaxin Liu 1 , Lijian Zuo 3 , Yongsheng Liu 4 , Xiaobao Xu 1, 5
ACS Nano ( IF 15.8 ) Pub Date : 2022-12-09 , DOI: 10.1021/acsnano.2c08731 Zeyao Han 1 , Xunfan Liao 2 , Yousheng Zou 1 , Yin He 1 , Junyu Li 1 , Yu Gu 1 , Dawei Hu 1 , Jiaxin Liu 1 , Lijian Zuo 3 , Yongsheng Liu 4 , Xiaobao Xu 1, 5
Affiliation
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Multispectral sensing is extremely desired in intelligent systems, e.g., autonomous vehicles, encrypted information communication, and health biometric monitoring, due to its highly sensitive spectral discrimination ability. Nevertheless, rigid bulky optics and delicate optical paths in devices significantly increase their complexity and size, which subsequently impede their integration in smart optoelectronic chips for universal applications. In this work, a filterless miniaturized multispectral photodetector is realized with an organic narrowband response unit array. With the manipulation of Frenkel exciton dissociation in active layers, a series of narrowband organic sensing units with full-width-at-half-maximum (fwhm) narrowing to ∼50 nm are achieved from 700 to 1050 nm with a laudable performance of responsivity of over 60 mA/W, −3 dB bandwidth over 10 kHz, linear dynamic range (LDR) reaching ∼120 dB, and a low noise current of less than 4 × 10–14 A·Hz–0.5. Furthermore, a 6 × 8 multispectral sensing array on a flexible substrate was fabricated with blade-coating. Assisted by a computational process, we successfully demonstrate the spectral recognition with a resolution of ∼50 nm and a mismatch of ∼10 nm. Finally, the function of matter identification is successfully achieved with our multispectral detector array.
中文翻译：
由叶片涂层有机窄带响应单元阵列衍生的柔性小型化多光谱探测器
由于其高度敏感的光谱辨别能力，多光谱传感在智能系统中非常需要，例如自动驾驶汽车、加密信息通信和健康生物识别监测。然而，设备中刚性庞大的光学器件和精密的光路显着增加了它们的复杂性和尺寸，这随后阻碍了它们在智能光电芯片中的集成以实现通用应用。在这项工作中，使用有机窄带响应单元阵列实现了无滤波器小型化多光谱光电探测器。通过在有源层中操纵 Frenkel 激子解离，从 700 到 1050 nm 实现了一系列半峰全宽 (fwhm) 缩小至 ~ 50 nm 的窄带有机传感单元，具有令人称道的响应性能超过 60 毫安/瓦，–14安·赫兹–0.5。此外，用刮刀涂层在柔性基板上制造了一个 6×8 多光谱传感阵列。在计算过程的协助下，我们成功地展示了分辨率为 ~50 nm 和失配为 ~10 nm 的光谱识别。最后，我们的多光谱探测器阵列成功实现了物质识别功能。
更新日期：2022-12-09
中文翻译：
由叶片涂层有机窄带响应单元阵列衍生的柔性小型化多光谱探测器
由于其高度敏感的光谱辨别能力，多光谱传感在智能系统中非常需要，例如自动驾驶汽车、加密信息通信和健康生物识别监测。然而，设备中刚性庞大的光学器件和精密的光路显着增加了它们的复杂性和尺寸，这随后阻碍了它们在智能光电芯片中的集成以实现通用应用。在这项工作中，使用有机窄带响应单元阵列实现了无滤波器小型化多光谱光电探测器。通过在有源层中操纵 Frenkel 激子解离，从 700 到 1050 nm 实现了一系列半峰全宽 (fwhm) 缩小至 ~ 50 nm 的窄带有机传感单元，具有令人称道的响应性能超过 60 毫安/瓦，–14安·赫兹–0.5。此外，用刮刀涂层在柔性基板上制造了一个 6×8 多光谱传感阵列。在计算过程的协助下，我们成功地展示了分辨率为 ~50 nm 和失配为 ~10 nm 的光谱识别。最后，我们的多光谱探测器阵列成功实现了物质识别功能。
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