TY - JOUR
T1 - The Role of Thermalization in the Cooling Dynamics of Hot Carrier Solar Cells
AU - Faber, Tim
AU - Filipovic, Lado
AU - Koster, L. Jan Anton
N1 - Funding Information:
The authors would like to thank the Center for Information Technology of the University of Groningen for their support and for providing access to the Peregrine high‐performance computing cluster, the Zernike Institute for Advanced Materials for funding. The financial support by the Austrian Federal Ministry of Labour and Economy and the National Foundation for Research, Technology and Development and the Christian Doppler Research Association is gratefully acknowledged. This work was supported in part by the Austrian Research Promotion Agency FFG (Bridge Young Scientists) under Project 878662 “Process‐Aware Structure Emulation for Device‐Technology Co‐Optimization.” Finally, the authors would like to thank Federico Ferrari for the illustrations.
Publisher Copyright:
© 2023 The Authors. Solar RRL published by Wiley-VCH GmbH.
PY - 2023/7
Y1 - 2023/7
N2 - The hot carrier solar cell (HCSC) concept has been proposed to overcome the Shockley Queisser limit of a single p–n junction solar cell by harvesting carriers before they have lost their surplus energy. A promising family of materials for these purposes is metal halide perovskites (MHP). MHPs have experimentally shown very long cooling times, the key requirement of a HCSC. By using ensemble Monte Carlo simulations, light is shed on why cooling times are found to be extended. This article concentrates on the role of thermalization in the cooling process. The role of carrier–phonon and carrier–carrier interactions in thermalization and cooling is specified, while showing how these processes depend on material parameters, such as the dielectric constant and effective mass. It is quantified how thermalization acts as a cooling mechanism via the cold background effect. The importance of a low degree of background doping is to achieve the observed extended cooling times. Herein, it is mapped out how perovskites should be tuned, their material parameters, carrier concentration, and purity, in order to realize a HCSC. It contributes to the debate on the cooling times in MHPs and the suitability of tin perovskites for HCSCs.
AB - The hot carrier solar cell (HCSC) concept has been proposed to overcome the Shockley Queisser limit of a single p–n junction solar cell by harvesting carriers before they have lost their surplus energy. A promising family of materials for these purposes is metal halide perovskites (MHP). MHPs have experimentally shown very long cooling times, the key requirement of a HCSC. By using ensemble Monte Carlo simulations, light is shed on why cooling times are found to be extended. This article concentrates on the role of thermalization in the cooling process. The role of carrier–phonon and carrier–carrier interactions in thermalization and cooling is specified, while showing how these processes depend on material parameters, such as the dielectric constant and effective mass. It is quantified how thermalization acts as a cooling mechanism via the cold background effect. The importance of a low degree of background doping is to achieve the observed extended cooling times. Herein, it is mapped out how perovskites should be tuned, their material parameters, carrier concentration, and purity, in order to realize a HCSC. It contributes to the debate on the cooling times in MHPs and the suitability of tin perovskites for HCSCs.
KW - hot carrier cooling
KW - hot carrier solar cells
KW - Monte Carlo simulations
KW - perovskites
KW - third gen PV
UR - http://www.scopus.com/inward/record.url?scp=85159953977&partnerID=8YFLogxK
U2 - 10.1002/solr.202300140
DO - 10.1002/solr.202300140
M3 - Article
AN - SCOPUS:85159953977
SN - 2367-198X
VL - 7
JO - Solar RRL
JF - Solar RRL
IS - 13
M1 - 2300140
ER -