4 April 2022 Pathways to hot carrier solar cells
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Abstract

Hot carrier solar cells (HCSCs) were first proposed many decades ago. Over the intervening years, there has been a continuing quest to create these cells that hold promise to shatter the Shockley–Queisser efficiency limit on single-junction solar cells. While there have been many positive and suggestive results in recent years, there remains no true operational HCSC. There are perhaps many reasons for this state. Here, many of the requirements for achieving such an HCSC will be discussed and some approaches will be modernized in terms of their science. Valley photovoltaics, in which carriers are transferred to higher-lying valleys of the conduction band will be described and the recent progress is discussed.

© 2022 Society of Photo-Optical Instrumentation Engineers (SPIE)
David K. Ferry, Vincent R. Whiteside, and Ian R. Sellers "Pathways to hot carrier solar cells," Journal of Photonics for Energy 12(2), 022204 (4 April 2022). https://doi.org/10.1117/1.JPE.12.022204
Received: 15 October 2021; Accepted: 9 March 2022; Published: 4 April 2022
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CITATIONS
Cited by 4 scholarly publications.
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KEYWORDS
Electrons

Phonons

Solar cells

Solar energy

Photons

Absorption

Indium gallium arsenide

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