室温下的热离子发射是可利用的吗？
Is thermo-ionic emission at room temperature exploitable?
摘要：
在这篇简短的笔记中，我们描述了两种设备，一种是平面电容器和球形电容器，人们应该能够测试在室温下从单个热源产生宏观电压的可能性，从而利用电流。基本的想法是微不足道的，它利用了热发射阴极的功函数低至0.7eV。这个想法并不完全是新的，但我们的方法更简单，更简洁。当实施时，它应该允许评估基于室温下的热离子材料的方法是否真的宏观上违反热力学第二定律。
英文摘要：
In this brief note we describe two devices, a sort of flat and spherical capacitor, with which one should be able to test the possibility of creating a macroscopic voltage, and thus exploitable current, out of a single thermal source at room temperature. The basic idea is trivial and it makes use of a thermo-emitting cathode with work function as low as 0.7eV. The idea is not completely new, but our approach is simpler and neat. When implemented, it should allow to assess if approaches based on thermo-ionic materials at room temperature really violate the Second Law of Thermodynamics macroscopically.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
