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Carrier Cooling in Lead Halide Perovskites : A Perspective on Hot Carrier Solar Cells

Lin, Weihua LU ; Canton, Sophie E. LU ; Zheng, Kaibo LU and Pullerits, Tõnu LU (2024) In ACS Energy Letters 9(1). p.298-307
Abstract

The concept of hot carrier solar cells (HCSCs) has been proposed as a promising yet elusive path toward high-performance photovoltaics (PV), capable of surpassing the Shockley-Queisser limit by recycling energy that would otherwise be lost during thermalization. Lead halide perovskites (LHPs) have emerged as highly promising materials for PV applications. The reports of slow hot carrier (HC) cooling in these materials have ignited discussions of their potential in realizing HCSCs. Here we summarize the key findings regarding HC dynamics in LHPs, as revealed by numerous studies using advanced time-resolved spectroscopies. We also emphasize the interconnected mechanisms involved in HC cooling. In addition, we discuss the influence of... (More)

The concept of hot carrier solar cells (HCSCs) has been proposed as a promising yet elusive path toward high-performance photovoltaics (PV), capable of surpassing the Shockley-Queisser limit by recycling energy that would otherwise be lost during thermalization. Lead halide perovskites (LHPs) have emerged as highly promising materials for PV applications. The reports of slow hot carrier (HC) cooling in these materials have ignited discussions of their potential in realizing HCSCs. Here we summarize the key findings regarding HC dynamics in LHPs, as revealed by numerous studies using advanced time-resolved spectroscopies. We also emphasize the interconnected mechanisms involved in HC cooling. In addition, we discuss the influence of nanostructuring on HC cooling dynamics in LHPs and suggest that two-dimensional LHPs, with their inherent quantum well structure, might exhibit modified phononic features and altered carrier-phonon coupling strength. We conclude by critically discussing the prospects for HCSCs, taking into account our current understanding of HC cooling and excitation conditions under sunlight.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
ACS Energy Letters
volume
9
issue
1
pages
10 pages
publisher
The American Chemical Society (ACS)
external identifiers
  • scopus:85181801308
ISSN
2380-8195
DOI
10.1021/acsenergylett.3c02359
language
English
LU publication?
yes
id
a53658e1-9b41-4582-bde1-aa7fd5c487f2
date added to LUP
2024-02-06 11:54:38
date last changed
2024-02-06 11:56:04
@article{a53658e1-9b41-4582-bde1-aa7fd5c487f2,
  abstract     = {{<p>The concept of hot carrier solar cells (HCSCs) has been proposed as a promising yet elusive path toward high-performance photovoltaics (PV), capable of surpassing the Shockley-Queisser limit by recycling energy that would otherwise be lost during thermalization. Lead halide perovskites (LHPs) have emerged as highly promising materials for PV applications. The reports of slow hot carrier (HC) cooling in these materials have ignited discussions of their potential in realizing HCSCs. Here we summarize the key findings regarding HC dynamics in LHPs, as revealed by numerous studies using advanced time-resolved spectroscopies. We also emphasize the interconnected mechanisms involved in HC cooling. In addition, we discuss the influence of nanostructuring on HC cooling dynamics in LHPs and suggest that two-dimensional LHPs, with their inherent quantum well structure, might exhibit modified phononic features and altered carrier-phonon coupling strength. We conclude by critically discussing the prospects for HCSCs, taking into account our current understanding of HC cooling and excitation conditions under sunlight.</p>}},
  author       = {{Lin, Weihua and Canton, Sophie E. and Zheng, Kaibo and Pullerits, Tõnu}},
  issn         = {{2380-8195}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{298--307}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{ACS Energy Letters}},
  title        = {{Carrier Cooling in Lead Halide Perovskites : A Perspective on Hot Carrier Solar Cells}},
  url          = {{http://dx.doi.org/10.1021/acsenergylett.3c02359}},
  doi          = {{10.1021/acsenergylett.3c02359}},
  volume       = {{9}},
  year         = {{2024}},
}