PbI2 Reagent Impurities Catalyze Mixed-Cation Halide Perovskite Ink Degradation

Ross Kerner; Kelly Schutt; Kai Zhu; Joseph Berry

doi:10.1021/acsenergylett.2c01953

PbI2 Reagent Impurities Catalyze Mixed-Cation Halide Perovskite Ink Degradation

Ross Kerner, Kelly Schutt, Kai Zhu, Joseph Berry

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

10 Scopus Citations

Abstract

Non-negligible K, acetate (OAc-), and nitrate (NO3-) impurities have been identified in commercially available PbI2 reagents, plausibly remnant from synthesis. Here, we characterize the individual impact of each of these impurities on the relative rate of the methylammonium (MA) condensation reaction with formamidinium (FA) to release N-methylformamidinium (MFA), a main degradation pathway of mixed-cation halide perovskite inks, emphasizing the need to better control purity in halide perovskites.

Original language	American English
Pages (from-to)	4333-4335
Number of pages	3
Journal	ACS Energy Letters
Volume	7
Issue number	12
DOIs	https://doi.org/10.1021/acsenergylett.2c01953
State	Published - 2022

NREL Publication Number

NREL/JA-5900-83900

Keywords

halide perovskite
impurities
solution degradation

Access to Document

10.1021/acsenergylett.2c01953

https://www.nrel.gov/docs/fy23osti/83900.pdf

Cite this

@article{465eec88d18e4f73b22b9105169c1e23,

title = "PbI2 Reagent Impurities Catalyze Mixed-Cation Halide Perovskite Ink Degradation",

abstract = "Non-negligible K, acetate (OAc-), and nitrate (NO3-) impurities have been identified in commercially available PbI2 reagents, plausibly remnant from synthesis. Here, we characterize the individual impact of each of these impurities on the relative rate of the methylammonium (MA) condensation reaction with formamidinium (FA) to release N-methylformamidinium (MFA), a main degradation pathway of mixed-cation halide perovskite inks, emphasizing the need to better control purity in halide perovskites.",

keywords = "halide perovskite, impurities, solution degradation",

author = "Ross Kerner and Kelly Schutt and Kai Zhu and Joseph Berry",

year = "2022",

doi = "10.1021/acsenergylett.2c01953",

language = "American English",

volume = "7",

pages = "4333--4335",

journal = "ACS Energy Letters",

issn = "2380-8195",

publisher = "American Chemical Society",

number = "12",

}

TY - JOUR

T1 - PbI2 Reagent Impurities Catalyze Mixed-Cation Halide Perovskite Ink Degradation

AU - Kerner, Ross

AU - Schutt, Kelly

AU - Zhu, Kai

AU - Berry, Joseph

PY - 2022

Y1 - 2022

N2 - Non-negligible K, acetate (OAc-), and nitrate (NO3-) impurities have been identified in commercially available PbI2 reagents, plausibly remnant from synthesis. Here, we characterize the individual impact of each of these impurities on the relative rate of the methylammonium (MA) condensation reaction with formamidinium (FA) to release N-methylformamidinium (MFA), a main degradation pathway of mixed-cation halide perovskite inks, emphasizing the need to better control purity in halide perovskites.

AB - Non-negligible K, acetate (OAc-), and nitrate (NO3-) impurities have been identified in commercially available PbI2 reagents, plausibly remnant from synthesis. Here, we characterize the individual impact of each of these impurities on the relative rate of the methylammonium (MA) condensation reaction with formamidinium (FA) to release N-methylformamidinium (MFA), a main degradation pathway of mixed-cation halide perovskite inks, emphasizing the need to better control purity in halide perovskites.

KW - halide perovskite

KW - impurities

KW - solution degradation

UR - http://www.scopus.com/inward/record.url?scp=85141674726&partnerID=8YFLogxK

U2 - 10.1021/acsenergylett.2c01953

DO - 10.1021/acsenergylett.2c01953

M3 - Article

SN - 2380-8195

VL - 7

SP - 4333

EP - 4335

JO - ACS Energy Letters

JF - ACS Energy Letters

IS - 12

ER -

PbI2 Reagent Impurities Catalyze Mixed-Cation Halide Perovskite Ink Degradation

Abstract

NREL Publication Number

Keywords

Access to Document

Other files and links

Fingerprint

Cite this