Diffusion length of photo-generated charge carriers in layers and powders of CH3NH3PbI3 perovskite
(2016) In Applied Physics Letters 109(7).- Abstract
The diffusion or transport lengths of photo-generated charge carriers in CH3NH3PbI3 layers (thickness up to 1 μm) and powders have been directly measured with high accuracy by modulated surface photovoltage after Goodman. The values of the diffusion lengths of photo-generated charge carriers ranged from 200 nm to tenths of μm. In thin CH3NH3PbI3 layers, the transport lengths corresponded to the layer thickness whereas in thicker layers and in crystallites of CH3NH3PbI3 powders the grain size limited the diffusion length. For grains, the diffusion length of photo-generated charge carriers depended on the measurement conditions.
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https://lup.lub.lu.se/record/db2e4fe7-57d1-4b37-82ee-6250701d87b2
- author
- Dittrich, Th ; Lang, F. ; Shargaieva, O. ; Rappich, J. ; Nickel, N. H. ; Unger, E. LU and Rech, B.
- organization
- publishing date
- 2016-01-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Physics Letters
- volume
- 109
- issue
- 7
- article number
- 073901
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- scopus:85020989618
- ISSN
- 0003-6951
- DOI
- 10.1063/1.4960641
- language
- English
- LU publication?
- yes
- id
- db2e4fe7-57d1-4b37-82ee-6250701d87b2
- date added to LUP
- 2020-01-19 14:54:25
- date last changed
- 2023-09-09 21:51:20
@article{db2e4fe7-57d1-4b37-82ee-6250701d87b2, abstract = {{<p>The diffusion or transport lengths of photo-generated charge carriers in CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub> layers (thickness up to 1 μm) and powders have been directly measured with high accuracy by modulated surface photovoltage after Goodman. The values of the diffusion lengths of photo-generated charge carriers ranged from 200 nm to tenths of μm. In thin CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub> layers, the transport lengths corresponded to the layer thickness whereas in thicker layers and in crystallites of CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub> powders the grain size limited the diffusion length. For grains, the diffusion length of photo-generated charge carriers depended on the measurement conditions.</p>}}, author = {{Dittrich, Th and Lang, F. and Shargaieva, O. and Rappich, J. and Nickel, N. H. and Unger, E. and Rech, B.}}, issn = {{0003-6951}}, language = {{eng}}, month = {{01}}, number = {{7}}, publisher = {{American Institute of Physics (AIP)}}, series = {{Applied Physics Letters}}, title = {{Diffusion length of photo-generated charge carriers in layers and powders of CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub> perovskite}}, url = {{http://dx.doi.org/10.1063/1.4960641}}, doi = {{10.1063/1.4960641}}, volume = {{109}}, year = {{2016}}, }