Limit of efficiency for photon-enhanced thermionic emission vs. photovoltaic and thermal conversion
نویسندگان
چکیده
منابع مشابه
Limit of efficiency for photon-enhanced thermionic emission vs. photovoltaic and thermal conversion
Conversion of sunlight by photon-enhanced thermionic emission (PETE) combines a photonic process similar to photovoltaic cells, and a thermal process similar to conventional thermionic converters. As a result, the upper limit on the conversion efficiency of PETE devices is not the same as the Shockley– Queisser (SQ) limit that corresponds to the bandgap of the absorbing material, nor to the Car...
متن کاملSolid-state Photon Enhanced Thermionic Emission for Solar Energy Conversion
Global climate imperatives require a worldwide shift away from greenhouse gasemitting activities such as fossil fuel combustion. Concentrated solar thermal installations are particularly appealing as they can store a fraction of their power in the form of heat to provide baseload power, yet current conversion efficiencies prevent them from reaching competitive market prices. One extremely promi...
متن کاملSolar energy conversion with photon-enhanced thermionic emission
Photon-enhanced thermionic emission (PETE) converts sunlight to electricity with the combined photonic and thermal excitation of charge carriers in a semiconductor, leading to electron emission over a vacuum gap. Theoretical analyses predict conversion efficiency that can match, or even exceed, the efficiency of traditional solar thermal and photovoltaic converters. Several materials have been ...
متن کاملPhoton-enhanced thermionic emission for solar concentrator systems.
Solar-energy conversion usually takes one of two forms: the 'quantum' approach, which uses the large per-photon energy of solar radiation to excite electrons, as in photovoltaic cells, or the 'thermal' approach, which uses concentrated sunlight as a thermal-energy source to indirectly produce electricity using a heat engine. Here we present a new concept for solar electricity generation, photon...
متن کاملWhere Solar Thermal Meets Photovoltaic for High - Efficiency Power Conversion
The author hereby grants to MIT permission to reproduce and to distribute publicly paper and electronic copies of this thesis document in whole or in part in any medium now known or hereafter created.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Solar Energy Materials and Solar Cells
سال: 2015
ISSN: 0927-0248
DOI: 10.1016/j.solmat.2015.05.001