Here, a thin and foldable porous reduced graphene oxide (rGO) fabricated by a solvent casting method (SC‐rGO) is introduced. The SC‐rGO is superior to aluminum as a positive triboelectric material in triboelectric nanogenerators (TENGs), significantly enhancing TENG output performance. The film shows extremely foldable features, where it could be folded by 1/16 size. The electrical properties and device performance of SC‐rGO are optimized varying thicknesses from 5 to 30 µm. A 30 µm thick TENG with a non‐annealed SC‐rGO film (STENG) shows the highest output of about 255 µW cm⁻² due to its high carrier concentration, low work function, and high surface area. After annealing, STENG performance is optimized with a 10 µm thick SC‐rGO because their work functions decreases, while the corresponding carrier concentrations decrease according to the thickness of the SC‐rGO films. The SC‐rGO films are highly durable and stable, where their output and conductivity show negligible changes after 100 000 cycles of mechanical deformation. A large SC‐rGO with a size of 13 × 3 cm² is fabricated and is attached inside a person's arm to demonstrate the shape‐adaptive characteristics. Consequently, 170 V is obtained and it turns on 19 green light emitting diodes by simply touching the STENG.

中文翻译：

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用于形状自适应摩擦电纳米发电机的极易折叠且高度多孔的氧化石墨烯薄膜。

在这里，介绍了一种通过溶剂浇铸法（SC-rGO）制造的可折叠的薄且多孔的多孔氧化石墨烯（rGO）。SC-rGO在摩擦电纳米发电机（TENGs）中作为正摩擦电材料优于铝，从而显着提高了TENG的输出性能。该膜具有极好的可折叠性，可以将其折叠成1/16大小。SC‐rGO的电气特性和设备性能已优化，厚度范围从5到30 µm不等。厚度为30 µm的TENG和未退火的SC-rGO膜（STENG）的最高输出约为255 µW cm ^-2由于其载流子浓度高，功函数低和表面积大。退火后，使用10 µm的SC-rGO可以优化STENG性能，因为它们的功函数会降低，而相应的载流子浓度会根据SC-rGO膜的厚度而降低。SC‐rGO薄膜具有极高的耐用性和稳定性，在经过10万次机械变形循环后，其输出和电导率变化可忽略不计。制造了一个大小为13×3 cm ²的大型SC-rGO，并将其安装在人的手臂内以展示其形状适应特性。因此，获得170 V的电压，只需触摸STENG即可接通19个绿色发光二极管。