Title
Electron and hole drift mobility measurements on methylammonium lead iodide perovskite solar cells
ORCID
Eric Schiff : 0000-0002-4104-7038
Mengjin Yang: 0000-0003-2019-4298
Ranjith Kottokkaran: 0000-0001-5542-2719
Vikram Dalal: 0000-0001-7896-625X
Document Type
Manuscript
Date
4-29-2016
Keywords
electron, drift, mobility, solar, cells, methylammonium, lead, perovskite
Language
English
Disciplines
Physics
Description/Abstract
We report nanosecond domain time-of-flight measurements of electron and hole photocarriers in methylammonium lead iodide perovskite solar cells. The mobilities ranged from 0.06 to 1.4 cm2/Vs at room temperature, but there is little systematic difference between the two carriers. We also find that the drift mobilities are dispersive (time-dependent). The dispersion parameters are in the range of 0.4–0.7, and they imply that terahertz domain mobilities will be much larger than nanosecond domain mobilities. The temperature-dependences of the dispersion parameters are consistent with confinement of electron and hole transport to fractal-like spatial networks within nanoseconds of their photogeneration.
Recommended Citation
B Maynard, Q Long, E Schiff, M Yang, K Zhu, R Kottokkaran, H Abbas, V Dalal (2016) Electron and hole drift mobility measurements on methylammonium lead iodide perovskite solar cells; DOI: https://doi.org/10.1063/1.4948344; AIP
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
