skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Time-Dependent Mechanical Response of APbX3 (A = Cs, CH3NH3; X = I, Br) Single Crystals [The Dynamic Mechanical Properties of Lead-Halide Perovskite Single Crystals are Independent of A-site Cation Chemistry]

Journal Article · · Advanced Materials
 [1];  [2];  [2];  [3];  [2];  [4];  [1]; ORCiD logo [1]
  1. Princeton Univ., Princeton, NJ (United States)
  2. King Abdullah Univ. of Science and Technology (KAUST), Thuwal (Saudi Arabia)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
  4. Argonne National Lab. (ANL), Argonne, IL (United States); Northwestern Univ., Evanston, IL (United States)
+ Show Author Affiliations

The ease of processing hybrid organic–inorganic perovskite (HOIPs) films, belonging to a material class with composition ABX3, from solution and at mild temperatures promises their use in deformable technologies, including flexible photovoltaic devices, sensors, and displays. To successfully apply these materials in deformable devices, knowledge of their mechanical response to dynamic strain is necessary. The authors elucidate the time- and rate-dependent mechanical properties of HOIPs and an inorganic perovskite (IP) single crystal by measuring nanoindentation creep and stress relaxation. The observation of pop-in events and slip bands on the surface of the indented crystals demonstrate dislocation-mediated plastic deformation. The magnitudes of creep and relaxation of both HOIPs and IPs are similar, negating prior hypothesis that the presence of organic A-site cations alters the mechanical response of these materials. Moreover, these samples exhibit a pronounced increase in creep, and stress relaxation as a function of indentation rate whose magnitudes reflect differences in the rates of nucleation and propagation of dislocations within the crystal structures of HOIPs and IP. In conclusion, this contribution provides understanding that is critical for designing perovskite devices capable of withstanding mechanical deformations.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1374182
Alternate ID(s):
OSTI ID: 1401541
Journal Information:
Advanced Materials, Vol. 29, Issue 24; ISSN 0935-9648
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 47 works
Citation information provided by
Web of Science

References (29)

Mechanical properties of hybrid organic-inorganic CH 3 NH 3 BX 3 (B = Sn, Pb; X = Br, I) perovskites for solar cell absorbers journal August 2014
Modeling of Lead Halide Perovskites for Photovoltaic Applications journal November 2014
Solar cell efficiency tables (version 48): Solar cell efficiency tables (version 48) journal June 2016
Nanoindentation studies of materials journal May 2006
Lattice dynamics and vibrational spectra of the orthorhombic, tetragonal, and cubic phases of methylammonium lead iodide journal October 2015
Analytical techniques for indentation of viscoelastic materials journal November 2006
Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells journal May 2009
Mechanical Properties of NaCl, KBr, KCl journal June 1948
Mechanical properties of hybrid inorganic–organic framework materials: establishing fundamental structure–property relationships journal January 2011
The time constant of logarithmic creep and relaxation journal July 2001
Strain hardening and recovery in a bulk metallic glass under nanoindentation journal April 2006
Methylammonium Lead Bromide Perovskite-Based Solar Cells by Vapor-Assisted Deposition journal February 2015
Characterization of viscoelastic-plastic properties of solid polymers by instrumented indentation journal February 2011
High-quality bulk hybrid perovskite single crystals within minutes by inverse temperature crystallization journal July 2015
Nanoindentation creep of single-crystal tungsten and gallium arsenide journal December 1997
Crystal Growth of the Perovskite Semiconductor CsPbBr 3 : A New Material for High-Energy Radiation Detection journal June 2013
Perovskite Photodetectors Operating in Both Narrowband and Broadband Regimes journal July 2016
Detection of gamma photons using solution-grown single crystals of hybrid lead halide perovskites journal July 2016
Understanding the Impact of Bromide on the Photovoltaic Performance of CH 3 NH 3 PbI 3 Solar Cells journal October 2015
Determining the activation energies and slip systems for dislocation nucleation in body-centered cubic Mo and face-centered cubic Ni single crystals journal August 2011
Dislocation Energetics and Pop-Ins in AlN Thin Films by Berkovich Nanoindentation journal September 2013
Pop-in events induced by spherical indentation in compound semiconductors journal January 2004
How Important Is the Organic Part of Lead Halide Perovskite Photovoltaic Cells? Efficient CsPbBr 3 Cells journal June 2015
Efficient organometal trihalide perovskite planar-heterojunction solar cells on flexible polymer substrates journal November 2013
Microstructural and electrical properties of Ce 0.9 Gd 0.1O1.95 thin film electrolyte in solid oxide fuel cells – CORRIGENDUM journal June 2011
Hybrid Organic-Inorganic Perovskites (HOIPs): Opportunities and Challenges journal July 2015
Mechanical properties of organic–inorganic halide perovskites, CH 3 NH 3 PbX 3 (X = I, Br and Cl), by nanoindentation journal January 2015
Detection of gamma photons using solution-grown single crystals of hybrid lead halide perovskites text January 2016
Modeling of Lead Halide Perovskites for Photovoltaic Applications preprint January 2014

Cited By (4)

Interfacial Residual Stress Relaxation in Perovskite Solar Cells with Improved Stability journal October 2019
Factors Influencing the Mechanical Properties of Formamidinium Lead Halides and Related Hybrid Perovskites journal July 2017
Design principle of all-inorganic halide perovskite-related nanocrystals journal January 2018
Factors Influencing the Mechanical Properties of Formamidinium Lead Halides and Related Hybrid Perovskites journal October 2017

Similar Records

Indentation Schmid factor and orientation dependence of nanoindentation pop-in behavior of NiAl single crystals
Journal Article · Sat Jan 01 00:00:00 EST 2011 · Journal of the Mechanics and Physics of Solids · OSTI ID:1374182
+1 more
Elevated temperature deformation of single crystal Y{sub 3}Al{sub 5}O{sub 12}
Journal Article · Fri Feb 13 00:00:00 EST 1998 · Scripta Materialia · OSTI ID:1374182
Nanoscale serration characteristics of additively manufactured superalloys
Journal Article · Sat Aug 15 00:00:00 EDT 2020 · Journal of Alloys and Compounds · OSTI ID:1374182
+4 more

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
dynamic mechanical behavior
hybrid perovskites
single crystals
nanoindentation
viscoplasticity