论文标题
波动引起的电流从独立石墨烯：向纳米级能量收集
Fluctuation-induced current from freestanding graphene: toward nanoscale energy harvesting
论文作者
论文摘要
在室温下，即使存在施加的偏置电压，也要持续运动的微米大小的床单。我们通过使用附近的小面积金属电极收集位移电流来量化平面外运动，并为运动耦合到包含二极管的电路的运动模型。该系统达到热平衡，热，工作和熵产生的速率趋于零。但是，石墨烯产生的功率等于载荷电阻器消散的功率。确切的功率公式类似于Nyquist的噪声功率公式，只是二极管电阻的变化速率显着提高了输出功率，而石墨烯的移动将功率谱转移到较低的频率上。
At room temperature, micron-sized sheets of freestanding graphene are in constant motion even in the presence of an applied bias voltage. We quantify the out-of-plane movement by collecting the displacement current using a nearby small-area metal electrode and present a Langevin model for the motion coupled to a circuit containing diodes. The system reaches thermal equilibrium and the rates of heat, work, and entropy production tend quickly to zero. However, there is power generated by graphene which is equal to the power dissipated by the load resistor. The exact power formula is similar to Nyquist's noise power formula, except that the rate of change of diode resistance significantly boosts the output power, and the movement of the graphene shifts the power spectrum to lower frequencies.
