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Title: Electrochemical impedance analysis of perovskite–electrolyte interfaces

Abstract

Here, the flat band potentials and carrier densities of spin coated and sprayed MAPbI3, FA0.85Cs0.15PbI3, and MAPbBr3 perovskite films were determined using the Mott-Schottky relation. The films developed a space charge layer and exhibited p-type conduction with carrier concentration ~ 1016 cm-3 for spin coated films. Electrochemical impedance spectra showed typical space charge impedance at frequencies > 1 kHz with increasing capacitance < 1 kHz owing to an ion diffusion component.

Authors:
ORCiD logo [1];  [2];  [1];  [1];  [1]
  1. National Renewable Energy Lab. (NREL), Golden, CO (United States)
  2. Univ. of Colorado, Boulder, CO (United States)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
OSTI Identifier:
1345114
Report Number(s):
NREL/JA-5900-67853
Journal ID: ISSN 1359-7345; CHCOFS
Grant/Contract Number:  
AC36-08GO28308
Resource Type:
Accepted Manuscript
Journal Name:
ChemComm
Additional Journal Information:
Journal Volume: 53; Journal Issue: 16; Journal ID: ISSN 1359-7345
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; perovskites; organic-inorganic; solar cells; optoelectronics

Citation Formats

Li, Zhen, Mercado, Candy C., Yang, Mengjin, Palay, Ethan, and Zhu, Kai. Electrochemical impedance analysis of perovskite–electrolyte interfaces. United States: N. p., 2017. Web. https://doi.org/10.1039/C6CC10315D.
Li, Zhen, Mercado, Candy C., Yang, Mengjin, Palay, Ethan, & Zhu, Kai. Electrochemical impedance analysis of perovskite–electrolyte interfaces. United States. https://doi.org/10.1039/C6CC10315D
Li, Zhen, Mercado, Candy C., Yang, Mengjin, Palay, Ethan, and Zhu, Kai. Tue . "Electrochemical impedance analysis of perovskite–electrolyte interfaces". United States. https://doi.org/10.1039/C6CC10315D. https://www.osti.gov/servlets/purl/1345114.
@article{osti_1345114,
title = {Electrochemical impedance analysis of perovskite–electrolyte interfaces},
author = {Li, Zhen and Mercado, Candy C. and Yang, Mengjin and Palay, Ethan and Zhu, Kai},
abstractNote = {Here, the flat band potentials and carrier densities of spin coated and sprayed MAPbI3, FA0.85Cs0.15PbI3, and MAPbBr3 perovskite films were determined using the Mott-Schottky relation. The films developed a space charge layer and exhibited p-type conduction with carrier concentration ~ 1016 cm-3 for spin coated films. Electrochemical impedance spectra showed typical space charge impedance at frequencies > 1 kHz with increasing capacitance < 1 kHz owing to an ion diffusion component.},
doi = {10.1039/C6CC10315D},
journal = {ChemComm},
number = 16,
volume = 53,
place = {United States},
year = {2017},
month = {1}
}

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