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

Shrestha S, Matt G, Osvet A, Niesner D, Hock R, Brabec C (2018)

Publication Status: Published

Publication Type: Journal article

Publication year: 2018

Journal

Journal of Physical Chemistry C American Chemical Society

Publisher: AMER CHEMICAL SOC

Book Volume: 122

Pages Range: 5935-5939

Journal Issue: 11

DOI: 10.1021/acs.jpcc.8b00341

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.

Authors with CRIS profile

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

Additional Organisation(s)

Graduiertenkolleg 1896/2 In situ Mikroskopie mit Elektronen, Röntgenstrahlen und Rastersonden Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)

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://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: Download