Tang Shuang
College of Engineering, State University of New York, Polytechnic Institute, Albany, New York, 12203, USA.
Sci Rep. 2018 Jul 13;8(1):10597. doi: 10.1038/s41598-018-28288-y.
It is a challenge to extract the energy sensitivity of charge carriers' transport and scattering from experimental data, although a theoretical estimation in which the existing scattering mechanism(s) are preliminarily assumed can be easily done. To tackle this problem, we have developed a method to experimentally determine the energy sensitivities, which can then serve as an important statistical measurement to further understand the collective behaviors of multi-carrier transport systems. This method is validated using a graphene system at different temperatures. Further, we demonstrate the application of this method to other two-dimensional (2D) materials as a guide for future experimental work on the optimization of materials performance for electronic components, Peltier coolers, thermoelectricity generators, thermocouples, thermopiles, electrical converters and other conductivity and/or Seebeck-effect-related sensors.
从实验数据中提取电荷载流子输运和散射的能量灵敏度是一项挑战，尽管可以轻松地进行基于预先假设现有散射机制的理论估计。为了解决这个问题，我们开发了一种通过实验确定能量灵敏度的方法，该方法随后可作为一项重要的统计测量手段，以进一步了解多载流子输运系统的集体行为。该方法在不同温度下的石墨烯系统中得到了验证。此外，我们展示了该方法在其他二维材料中的应用，为未来优化电子元件、珀耳帖冷却器、热电发电机、热电偶、热电堆、电转换器以及其他与电导率和/或塞贝克效应相关传感器的材料性能的实验工作提供指导。
