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Title: Electrical power generation from moderate-temperature radiative thermal sources

Abstract

Moderate-temperature thermal sources (100° to 400°C) which radiate waste heat are often the by-product of mechanical work, chemical or nuclear reactions, or information processing. We demonstrate conversion of thermal radiation into electrical power using a bipolar grating-coupled complementary metal-oxide-silicon (CMOS) tunnel diode. A two-step photon-assisted tunneling charge pumping mechanism results in separation of charge carriers in pn-junction wells leading to a large open-circuit voltage developed across a load. Electrical power generation from a broadband blackbody thermal source has been experimentally demonstrated with converted power densities of 27 to 61 microwatts per square centimeter for thermal sources between 250° and 400°C. Scalable, efficient conversion of radiated waste heat into electrical power can be used to reduce energy consumption or to power electronics and sensors.

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [1];  [1]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1605732
Report Number(s):
SAND-2020-2469J
Journal ID: ISSN 0036-8075; 684312
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Accepted Manuscript
Journal Name:
Science
Additional Journal Information:
Journal Volume: 367; Journal Issue: 6484; Journal ID: ISSN 0036-8075
Publisher:
AAAS
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION

Citation Formats

Davids, Paul S., Kirsch, Jared, Starbuck, Andrew, Jarecki, Robert, Shank, Joshua, and Peters, David. Electrical power generation from moderate-temperature radiative thermal sources. United States: N. p., 2020. Web. doi:10.1126/science.aba2089.
Davids, Paul S., Kirsch, Jared, Starbuck, Andrew, Jarecki, Robert, Shank, Joshua, & Peters, David. Electrical power generation from moderate-temperature radiative thermal sources. United States. doi:https://doi.org/10.1126/science.aba2089
Davids, Paul S., Kirsch, Jared, Starbuck, Andrew, Jarecki, Robert, Shank, Joshua, and Peters, David. Thu . "Electrical power generation from moderate-temperature radiative thermal sources". United States. doi:https://doi.org/10.1126/science.aba2089. https://www.osti.gov/servlets/purl/1605732.
@article{osti_1605732,
title = {Electrical power generation from moderate-temperature radiative thermal sources},
author = {Davids, Paul S. and Kirsch, Jared and Starbuck, Andrew and Jarecki, Robert and Shank, Joshua and Peters, David},
abstractNote = {Moderate-temperature thermal sources (100° to 400°C) which radiate waste heat are often the by-product of mechanical work, chemical or nuclear reactions, or information processing. We demonstrate conversion of thermal radiation into electrical power using a bipolar grating-coupled complementary metal-oxide-silicon (CMOS) tunnel diode. A two-step photon-assisted tunneling charge pumping mechanism results in separation of charge carriers in pn-junction wells leading to a large open-circuit voltage developed across a load. Electrical power generation from a broadband blackbody thermal source has been experimentally demonstrated with converted power densities of 27 to 61 microwatts per square centimeter for thermal sources between 250° and 400°C. Scalable, efficient conversion of radiated waste heat into electrical power can be used to reduce energy consumption or to power electronics and sensors.},
doi = {10.1126/science.aba2089},
journal = {Science},
number = 6484,
volume = 367,
place = {United States},
year = {2020},
month = {2}
}

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