Doped organic thermoelectric short wavelength infrared detectors

IF 12.5 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Science Advances Pub Date : 2025-05-02 DOI:10.1126/sciadv.adt0006

Shu-Jen Wang, Alexej Pashkin, Ghader Darbandy, Andrei Luferau, Jakob Wolansky, Louis C. Winkler, Zongbao Zhang, Tak Shun Wong, Mohd Saif Shaikh, Yonder Berencén, Johannes Benduhn, Hans Kleemann, Karl Leo

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Abstract

Photon-based organic photodetector performance drops rapidly when going beyond near-infrared light detection due to nonradiative recombination. Here, we report on a device concept for infrared detection using organic thermoelectrics coupled to an infrared absorption film for heat generation. These short wavelength infrared (SWIR) detectors show an excellent area normalized responsivity of over 10⁹ milliampere per watt per square meter at 1 V, two to three orders of magnitude higher than the conjugated polymer SWIR detector reported in the literature and typical organic photodetectors in the visible and near-infrared wavelength range. Moreover, the devices show a fast switch-on time with an estimated 3-decibel frequency of over 610 kilohertz, making the device suitable for a wide range of applications. However, the specific detectivity of the current device concept is limited to 10⁴ Jones. We discuss strategies for improving the specific detectivities of these detectors with technology computer-aided design simulations.

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掺杂有机热电短波长红外探测器

由于非辐射复合，光子基有机光电探测器在超过近红外光探测范围时性能迅速下降。在这里，我们报告了一种红外探测装置的概念，该装置使用有机热电耦合到红外吸收膜来产生热量。这些短波长红外（SWIR）探测器显示出优异的区域标准化响应率，在1v下超过109毫安每瓦每平方米，比文献中报道的共轭聚合物SWIR探测器和可见光和近红外波长范围内典型的有机光电探测器高两到三个数量级。此外，该设备显示出快速的开关时间，估计3分贝频率超过610千赫兹，使该设备适用于广泛的应用。然而，目前设备概念的具体探测能力仅限于104琼斯。我们讨论了利用计算机辅助设计模拟技术来提高这些探测器的具体探测率的策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Science Advances 综合性期刊-综合性期刊

CiteScore

21.40

自引率

1.50%

发文量

1937

审稿时长

29 weeks

期刊介绍： Science Advances, an open-access journal by AAAS, publishes impactful research in diverse scientific areas. It aims for fair, fast, and expert peer review, providing freely accessible research to readers. Led by distinguished scientists, the journal supports AAAS's mission by extending Science magazine's capacity to identify and promote significant advances. Evolving digital publishing technologies play a crucial role in advancing AAAS's global mission for science communication and benefitting humankind.