Flexible transparent electromagnetic interference (EMI) shielding films in visual windows are crucial for the innovation of optoelectronic devices, but the challenge of balancing light transmittance and EMI shielding effectiveness (SE) still exists. Herein, this work described a flexible transparent MXene@SWNTs/PC film with a hierarchical conductive layer that was fabricated via an alternating rotation spraying method. The multi-scale hierarchical structure configured with 1D SWNTs and 2D MXene endow the obtained film with good comprehensive properties, i. e, low sheet resistance of 32.8 Ω/sq at 56.1% light transmittance, thus causing a satisfactory EMI SE of 20.8 dB. Moreover, the transparent shielding films exhibit remarkable flexibility, which can maintain steady EMI SE after 1000 continuous bending cycles. More importantly, the low sheet resistance and high light absorption capacity of hybrid conductive layer facilitate the transparent shielding film with low-voltage-driven electric heating effect and outstanding photothermal conversion ability, respectively, ensuring the normal operation under extreme cold condition. The combination of good light transmittance, satisfactory EMI shielding performance, and multi-source thermal response enables MXene@SWNTs/PC film to have great potential as a transparent shielding film in emerging optoelectronic devices.

中文翻译：

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灵活、分层的 MXene@SWNTs 透明导电薄膜，具有多源热响应，用于电磁干扰屏蔽

可视窗中的柔性透明电磁干扰（EMI）屏蔽膜对于光电器件的创新至关重要，但平衡透光率和EMI屏蔽效能（SE）的挑战仍然存在。在此，这项工作描述了一种通过交替旋转喷涂方法制造的具有分层导电层的柔性透明 MXene@SWNTs/PC 薄膜。由1D SWNTs和2D MXene配置的多尺度分级结构赋予所得薄膜良好的综合性能，即：e，在56.1%的透光率下具有32.8Ω/sq的低方块电阻，从而产生令人满意的20.8dB的EMI SE。此外，透明屏蔽膜表现出卓越的柔韧性，在1000次连续弯曲循环后仍能保持稳定的EMI SE。更重要的是，混合导电层的低方块电阻和高光吸收能力分别有利于透明屏蔽膜具有低压驱动的电热效应和出色的光热转换能力，保证在极冷条件下的正常工作。良好的透光率、令人满意的EMI屏蔽性能和多源热响应的结合使MXene@SWNTs/PC薄膜作为新兴光电器件中的透明屏蔽膜具有巨大的潜力。