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Charge carrier dynamics controlling performance of lead-based halide perovskite solar cells

Maduwanthi, Chathurika ; Liu, Maning LU orcid and Tachibana, Yasuhiro (2025) In Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers 64(5).
Abstract

We review our studies to assess charge carrier dynamics inside a perovskite film and interfacial charge transfer dynamics for a perovskite layer sandwiched by an electron transporting layer (ETL) such as TiO2 compact or mesoporous layer and a hole transporting layer (HTL) such as spiro-OMeTAD. Both electron and hole injection occur faster than electron-hole recombination inside a perovskite film, however, both change injection yields decrease with an increase in excitation intensity. Since the electron mobility inside methylammonium lead iodide (MAPbI3) perovskite is lower than the hole mobility, employing a mesoporous ETL structure is suitable to maximise the electron injection yield. Interfacial charge... (More)

We review our studies to assess charge carrier dynamics inside a perovskite film and interfacial charge transfer dynamics for a perovskite layer sandwiched by an electron transporting layer (ETL) such as TiO2 compact or mesoporous layer and a hole transporting layer (HTL) such as spiro-OMeTAD. Both electron and hole injection occur faster than electron-hole recombination inside a perovskite film, however, both change injection yields decrease with an increase in excitation intensity. Since the electron mobility inside methylammonium lead iodide (MAPbI3) perovskite is lower than the hole mobility, employing a mesoporous ETL structure is suitable to maximise the electron injection yield. Interfacial charge recombination lifetime increases with an increase in perovskite film thickness. We therefore conclude that for p-type MAPbI3 solar cells, the perovskite film thickness should be increased to the hole diffusion length, while the mesoporous ETL structure should be employed to maximise the electron injection yield.

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Contribution to journal
publication status
published
subject
keywords
charge carrier dynamics, charge injection, interfacial charge recombination, perovskite solar cells
in
Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
volume
64
issue
5
article number
050806
publisher
Japan Society of Applied Physics
external identifiers
  • scopus:105006973127
ISSN
0021-4922
DOI
10.35848/1347-4065/adcef3
language
English
LU publication?
yes
id
5f591817-6967-467e-bada-fd0734f3a706
date added to LUP
2025-08-05 11:29:06
date last changed
2025-08-05 11:29:50
@article{5f591817-6967-467e-bada-fd0734f3a706,
  abstract     = {{<p>We review our studies to assess charge carrier dynamics inside a perovskite film and interfacial charge transfer dynamics for a perovskite layer sandwiched by an electron transporting layer (ETL) such as TiO<sub>2</sub> compact or mesoporous layer and a hole transporting layer (HTL) such as spiro-OMeTAD. Both electron and hole injection occur faster than electron-hole recombination inside a perovskite film, however, both change injection yields decrease with an increase in excitation intensity. Since the electron mobility inside methylammonium lead iodide (MAPbI<sub>3</sub>) perovskite is lower than the hole mobility, employing a mesoporous ETL structure is suitable to maximise the electron injection yield. Interfacial charge recombination lifetime increases with an increase in perovskite film thickness. We therefore conclude that for p-type MAPbI<sub>3</sub> solar cells, the perovskite film thickness should be increased to the hole diffusion length, while the mesoporous ETL structure should be employed to maximise the electron injection yield.</p>}},
  author       = {{Maduwanthi, Chathurika and Liu, Maning and Tachibana, Yasuhiro}},
  issn         = {{0021-4922}},
  keywords     = {{charge carrier dynamics; charge injection; interfacial charge recombination; perovskite solar cells}},
  language     = {{eng}},
  number       = {{5}},
  publisher    = {{Japan Society of Applied Physics}},
  series       = {{Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers}},
  title        = {{Charge carrier dynamics controlling performance of lead-based halide perovskite solar cells}},
  url          = {{http://dx.doi.org/10.35848/1347-4065/adcef3}},
  doi          = {{10.35848/1347-4065/adcef3}},
  volume       = {{64}},
  year         = {{2025}},
}