| Literature DB >> 24591604 |
Steven J Byrnes1, Romain Blanchard, Federico Capasso.
Abstract
It is possible to harvest energy from Earth's thermal infrared emission into outer space. We calculate the thermodynamic limit for the amount of power available, and as a case study, we plot how this limit varies daily and seasonally in a location in Oklahoma. We discuss two possible ways to make such an emissive energy harvester (EEH): A thermal EEH (analogous to solar thermal power generation) and an optoelectronic EEH (analogous to photovoltaic power generation). For the latter, we propose using an infrared-frequency rectifying antenna, and we discuss its operating principles, efficiency limits, system design considerations, and possible technological implementations.Entities:
Keywords: long-wave infrared; rectenna
Mesh:
Year: 2014 PMID: 24591604 PMCID: PMC3964088 DOI: 10.1073/pnas.1402036111
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN: 0027-8424 Impact factor: 11.205