Electrochemical Impedance Analysis of Perovskite-Electrolyte Interfaces

Zhen Li; Mengjin Yang; Kai Zhu; Candy Mercado; Ethan Palay

doi:10.1039/C6CC10315D

Electrochemical Impedance Analysis of Perovskite-Electrolyte Interfaces

Zhen Li, Mengjin Yang, Kai Zhu, Candy Mercado, Ethan Palay

Research output: Contribution to journal › Article › peer-review

44 Scopus Citations

Abstract

The flat band potentials and carrier densities of spin coated and sprayed MAPbI₃, FA_0.85Cs_0.15PbI₃, and MAPbBr₃ perovskite films were determined using the Mott-Schottky relation. The films developed a space charge layer and exhibited p-type conduction with a carrier concentration of ∼10¹⁶ cm⁻³ for spin coated films. Electrochemical impedance spectra showed typical space charge impedance at frequencies >1 kHz, and an exceptional high capacitance at frequency <1 kHz owing to an ion diffusion component.

Original language	American English
Pages (from-to)	2467-2470
Number of pages	4
Journal	Chemical Communications
Volume	53
Issue number	16
DOIs	https://doi.org/10.1039/C6CC10315D https://doi.org/10.1039/c6cc10315d
State	Published - 2017

Bibliographical note

Publisher Copyright:
© The Royal Society of Chemistry.

NREL Publication Number

NREL/JA-5900-67853

Keywords

optoelectronics
organic-inorganic
perovskites
solar cells

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title = "Electrochemical Impedance Analysis of Perovskite-Electrolyte Interfaces",

abstract = "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 a carrier concentration of ∼1016 cm−3 for spin coated films. Electrochemical impedance spectra showed typical space charge impedance at frequencies >1 kHz, and an exceptional high capacitance at frequency <1 kHz owing to an ion diffusion component.",

keywords = "optoelectronics, organic-inorganic, perovskites, solar cells",

author = "Zhen Li and Mengjin Yang and Kai Zhu and Candy Mercado and Ethan Palay",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry.",

year = "2017",

doi = "10.1039/C6CC10315D",

language = "American English",

volume = "53",

pages = "2467--2470",

journal = "Chemical Communications",

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T1 - Electrochemical Impedance Analysis of Perovskite-Electrolyte Interfaces

AU - Li, Zhen

AU - Yang, Mengjin

AU - Zhu, Kai

AU - Mercado, Candy

AU - Palay, Ethan

N1 - Publisher Copyright: © The Royal Society of Chemistry.

PY - 2017

Y1 - 2017

N2 - 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 a carrier concentration of ∼1016 cm−3 for spin coated films. Electrochemical impedance spectra showed typical space charge impedance at frequencies >1 kHz, and an exceptional high capacitance at frequency <1 kHz owing to an ion diffusion component.

AB - 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 a carrier concentration of ∼1016 cm−3 for spin coated films. Electrochemical impedance spectra showed typical space charge impedance at frequencies >1 kHz, and an exceptional high capacitance at frequency <1 kHz owing to an ion diffusion component.

KW - optoelectronics

KW - organic-inorganic

KW - perovskites

KW - solar cells

UR - http://www.scopus.com/inward/record.url?scp=85013422753&partnerID=8YFLogxK

U2 - 10.1039/C6CC10315D

DO - 10.1039/C6CC10315D

M3 - Article

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AN - SCOPUS:85013422753

SN - 1359-7345

VL - 53

SP - 2467

EP - 2470

JO - Chemical Communications

JF - Chemical Communications

IS - 16

ER -

Electrochemical Impedance Analysis of Perovskite-Electrolyte Interfaces

Abstract

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NREL Publication Number

Keywords

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