论文标题
电子和光子耦合对光热伏洛伏型杂种太阳能设备的性能的影响
The Effects of Electronic and Photonic Coupling on the Performance of a Photothermionic-Photovoltaic Hybrid Solar Device
论文作者
论文摘要
这项工作介绍了光热 - 电动伏洛氏杂交太阳能设备的详细分析。该混合设备中的电子从设备内产生的太阳能光子和热播获得能量，因此，与单个光热或光伏设备相比，该设备有可能提供电压增强。我们表明，由于电子和光子耦合强度对此间隙尺寸的强烈依赖性，光热发射极和光伏收集器之间的间隙大小至关重要。我们还研究了热离子和光伏阶段之间的当前匹配约束如何通过研究不同的混合设备配置来影响混合太阳能设备的性能。此外，将混合设备与金属收集器的单个光热太阳能设备进行了比较。有趣的是，我们观察到，添加光伏阶段是为了使混合装置捕获整个陆地太阳光谱，并不一定会带来更高的总体转换效率。
This work presents a detailed analysis of the photothermionic-photovoltaic hybrid solar device. The electrons in this hybrid device gain energy from both the solar photons and thermophotons generated within the device, and hence the device has the potential to offer a voltage boost compared to individual photothermionic or photovoltaic devices. We show that the gap size between the photothermionic emitter and the photovoltaic collector crucially affects the device performance due to the strong dependence of the electronic and photonic coupling strengths on this gap size. We also investigate how the current matching constraint between the thermionic and photovoltaic stages can affect the hybrid solar device performance by studying different hybrid device configurations. Moreover, the hybrid devices are compared with the single photothermionic solar device with a metallic collector. Interestingly, we observe that the addition of a photovoltaic stage meant to enable the hybrid device to capture the entire terrestrial solar spectrum does not necessarily lead to higher overall conversion efficiency.
