Charge carrier dynamics controlling performance of lead-based halide perovskite solar cells
(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.
(Less)
- author
- Maduwanthi, Chathurika
; Liu, Maning
LU
and Tachibana, Yasuhiro
- organization
- publishing date
- 2025-05
- type
- 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}}, }