We here describe a novel type of long-wavelength radiation detector that measures illumination intensity at room temperature through mechanical transduction. Compared to semiconductor-based bolometers, our nanomechanical detector exhibits low measurement noise and is inherently transparent and flexible. The presented solid-state device is based on a 2D-material film that acts as radiation absorber and detector of mechanical strain at the substrate–absorber interface. Optimization of the 2D material properties and realization of a novel edge-on device geometry combines unprecedented detectivity of 3.34 × 10⁸ cm Hz^1/2 W^–1 with micrometer-scale spatial resolution. The observed combination of superior performance with the facile and scalable fabrication using only liquid processes shows the potential of the presented detector for future ubiquitous and wearable electronics.

中文翻译：

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2D启用材料的纳米机械强度计

我们在这里描述了一种新型的长波长辐射探测器，该探测器通过机械转导来测量室温下的照明强度。与基于半导体的辐射热计相比，我们的纳米机械探测器具有较低的测量噪声，并且具有固有的透明性和灵活性。提出的固态设备基于2D材料膜，该膜充当辐射吸收剂并检测衬底与吸收剂界面的机械应变。二维材料性能的优化和新型边缘接通式器件几何的实现结合了空前的3.34×10 ⁸ cm Hz ^1/2 W ^–1的探测能力具有微米级的空间分辨率。观察到的卓越性能与仅使用液体工艺的便捷且可扩展的制造相结合，表明了所提出的检测器对于未来普及和可穿戴电子产品的潜力。