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

Title: Metal/Ion Interactions Induced p–i–n Junction in Methylammonium Lead Triiodide Perovskite Single Crystals

Journal Article · · Journal of the American Chemical Society
DOI:https://doi.org/10.1021/jacs.7b10416· OSTI ID:1422483
 [1];  [1];  [2];  [2];  [1]; ORCiD logo [3]; ORCiD logo [3];  [3];  [2];  [1]; ORCiD logo [1]
  1. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Materials Science and Engineering
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Science (CNMS); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Inst. for Functional Imaging of Materials
  3. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemistry
+ Show Author Affiliations

Hybrid perovskites, as emerging multifunctional semiconductors, have demonstrated dual electronic/ionic conduction properties. Here, we report a metal/ion interaction induced p-i-n junction across slightly n-type doped MAPbI3 single crystals with Au/MAPbI3/Ag configuration based on interface dependent Seebeck effect, Hall effect and time-of-flight secondary ion mass spectrometry analysis. The organic cations (MA+) interact with Au atoms, forming positively charged coordination complexes at Au/MAPbI3 interface, whereas iodine anions (I–) can react with Ag contacts, leading to interfacial ionic polarization. Such metal/ion interactions establish a p-doped region near the Au/MAPbI3 interface due to the formation of MA+ vacancies, and an n-doped region near the Ag/MAPbI3 interface due to formation of I– vacancies, consequently forming a p-i-n junction across the crystal in Au/MAPbI3/Ag configuration. Therefore, the metal/ion interaction plays a role in determining the surface electronic structure and semiconducting properties of hybrid perovskites.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); US Air Force Office of Scientific Research (AFOSR); National Science Foundation (NSF); National Science Foundation of China
Grant/Contract Number:
AC05-00OR22725; FA 9550-15-1-0064; 21161160445
OSTI ID:
1422483
Journal Information:
Journal of the American Chemical Society, Vol. 139, Issue 48; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 27 works
Citation information provided by
Web of Science

References (33)

Incorporation of rubidium cations into perovskite solar cells improves photovoltaic performance journal September 2016
Efficient and stable solution-processed planar perovskite solar cells via contact passivation journal February 2017
Efficient perovskite light-emitting diodes featuring nanometre-sized crystallites journal January 2017
An extremely high power factor in Seebeck effects based on a new n-type copper-based organic/inorganic hybrid C 6 H 4 NH 2 CuBr 2 I film with metal-like conductivity journal January 2017
Electron-hole diffusion lengths > 175 μm in solution-grown CH 3 NH 3 PbI 3 single crystals journal January 2015
Low trap-state density and long carrier diffusion in organolead trihalide perovskite single crystals journal January 2015
Two-Inch-Sized Perovskite CH 3 NH 3 PbX 3 (X = Cl, Br, I) Crystals: Growth and Characterization journal August 2015
Perovskite CH 3 NH 3 PbI 3 (Cl) Single Crystals: Rapid Solution Growth, Unparalleled Crystalline Quality, and Low Trap Density toward 10 8 cm –3 journal July 2016
Highly narrowband perovskite single-crystal photodetectors enabled by surface-charge recombination journal August 2015
Planar-integrated single-crystalline perovskite photodetectors journal November 2015
Detection of gamma photons using solution-grown single crystals of hybrid lead halide perovskites journal July 2016
Sensitive X-ray detectors made of methylammonium lead tribromide perovskite single crystals journal March 2016
Monolithic integration of hybrid perovskite single crystals with heterogenous substrate for highly sensitive X-ray imaging journal April 2017
Dopant compensation in alloyed CH3NH3PbBr3−xClx perovskite single crystals for gamma-ray spectroscopy journal July 2017
Ionic conduction of the perovskite-type halides journal November 1983
Defect migration in methylammonium lead iodide and its role in perovskite solar cell operation journal January 2015
Ionic transport in hybrid lead iodide perovskite solar cells journal June 2015
Ion Migration in Organometal Trihalide Perovskite and Its Impact on Photovoltaic Efficiency and Stability journal January 2016
High-Efficiency Solution-Processed Inorganic Metal Halide Perovskite Light-Emitting Diodes journal June 2017
Iodine Vacancy Redistribution in Organic-Inorganic Halide Perovskite Films and Resistive Switching Effects journal June 2017
Giant switchable photovoltaic effect in organometal trihalide perovskite devices journal December 2014
Photovoltaic Switching Mechanism in Lateral Structure Hybrid Perovskite Solar Cells journal June 2015
Grain boundary dominated ion migration in polycrystalline organic–inorganic halide perovskite films journal January 2016
Achieving long-term stable perovskite solar cells via ion neutralization journal January 2016
Diffusion engineering of ions and charge carriers for stable efficient perovskite solar cells journal June 2017
Semiconducting Tin and Lead Iodide Perovskites with Organic Cations: Phase Transitions, High Mobilities, and Near-Infrared Photoluminescent Properties journal July 2013
The In-Gap Electronic State Spectrum of Methylammonium Lead Iodide Single-Crystal Perovskites journal March 2016
Tuning of the Thermoelectric Figure of Merit of CH 3 NH 3 MI 3 (M═Pb,Sn) Photovoltaic Perovskites journal May 2015
Enhancement of Thermoelectric Efficiency in PbTe by Distortion of the Electronic Density of States journal July 2008
Interactions of gold coordination complexes with DNA journal May 1986
First Principles Computational Study for Understanding the Interactions between ssDNA and Gold Nanoparticles:  Adsorption of Methylamine on Gold Nanoparticulate Surfaces journal December 2005
Unique Properties of Halide Perovskites as Possible Origins of the Superior Solar Cell Performance journal May 2014
Unusual defect physics in CH 3 NH 3 PbI 3 perovskite solar cell absorber journal February 2014

Cited By (8)

When defects become ‘dynamic’: halide perovskites: a new window on materials? journal January 2019
Fundamental Thermoelectric Properties in Organic Heterojunctions from Molecular to Thin‐Film and Hybrid Designs journal August 2019
Charge Transport in Halide Perovskite Single Crystals: Experimental and Theoretical Perspectives journal January 2019
Giant current amplification induced by ion migration in perovskite single crystal photodetectors journal January 2018
Conductive metallic filaments dominate in hybrid perovskite-based memory devices journal May 2019
Dynamic Impact of Electrode Materials on Interface of Single-Crystalline Methylammonium Lead Bromide Perovskite journal June 2018
Enabling Self-passivation by Attaching Small Grains on Surfaces of Large Grains toward High-Performance Perovskite LEDs journal September 2019
Rapid Oxidation of the Hole Transport Layer in Perovskite Solar Cells by A Low-Temperature Plasma journal January 2019

Similar Records

Reactions at noble metal contacts with methylammonium lead triiodide perovskites: Role of underpotential deposition and electrochemistry
Journal Article · Thu Apr 04 00:00:00 EDT 2019 · APL Materials · OSTI ID:1422483
+6 more
Effects of formamidinium and bromide ion substitution in methylammonium lead triiodide toward high-performance perovskite solar cells
Journal Article · Mon Feb 22 00:00:00 EST 2016 · Nano Energy · OSTI ID:1422483
+4 more
Enabling AC electroluminescence in quasi-2D perovskites by uniformly arranging different-n-value nanoplates to allow bidirectional charge transport
Journal Article · Sat Sep 25 00:00:00 EDT 2021 · Nano Energy · OSTI ID:1422483
+1 more

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY