Assessing Temperature Dependence of Drift Mobility in Methylammonium Lead Iodide Perovskite Single Crystals

Journal article


Publication Details

Author(s): Shrestha S, Matt G, Osvet A, Niesner D, Hock R, Brabec C
Journal: Journal of Physical Chemistry C
Publisher: AMER CHEMICAL SOC
Publication year: 2018
Volume: 122
Journal issue: 11
Pages range: 5935-5939
ISSN: 1932-7447


Abstract


Hybrid organic-inorganic perovskites have emerged as cost-effective and high-performance semiconductors for optoelectronic applications. Precise knowledge of charge carrier mobility and especially the temperature dependence of mobility is therefore of utmost relevance for advancing high-performance materials. Here, the charge carrier mobility in methylammonium lead iodide single crystals is investigated with time of flight technique from 290 to 100 K. A nondispersive transport with an electron mobility of 135 (+/- 20) cm(2)/V s and a hole mobility of 90 (+/- 20) cm(2)/V s is obtained at room temperature. A power-law temperature dependence of mobility, mu alpha T-m, with an exponent m = -2.8 and -2.0, is measured for electrons and holes in the tetragonal phase. The highest electron and hole mobilities measured are 635 (+/- 70) and 415 (+/- 20) cm(2)/V s, respectively. Our results indicate that the scattering of charge carriers with phonons is the limiting factor for carrier mobilities at room temperature.



FAU Authors / FAU Editors

Brabec, Christoph Prof. Dr.
Osvet, Andres Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Institute Materials for Electronics and Energy Technology (i-MEET)
Hock, Rainer Prof. Dr.
Shrestha, Shreetu
Professur für Kristallographie und Strukturphysik
Institute Materials for Electronics and Energy Technology (i-MEET)
Matt, Gebhard Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Niesner, Daniel Dr.
Lehrstuhl für Festkörperphysik


Additional Organisation
Graduiertenkolleg 1896/2 In situ Mikroskopie mit Elektronen, Röntgenstrahlen und Rastersonden


How to cite

APA:
Shrestha, S., Matt, G., Osvet, A., Niesner, D., Hock, R., & Brabec, C. (2018). Assessing Temperature Dependence of Drift Mobility in Methylammonium Lead Iodide Perovskite Single Crystals. Journal of Physical Chemistry C, 122(11), 5935-5939. https://dx.doi.org/10.1021/acs.jpcc.8b00341

MLA:
Shrestha, Shreetu, et al. "Assessing Temperature Dependence of Drift Mobility in Methylammonium Lead Iodide Perovskite Single Crystals." Journal of Physical Chemistry C 122.11 (2018): 5935-5939.

BibTeX: 

Last updated on 2018-27-09 at 09:33