Phase-pure formamidinium lead iodide perovskite films deposited via flow-limited field-injection electrostatic spraying

Riley Vesto; Matthew Pianfetti; Griffin Rzonca; Frank Kelly; Rebekah Wilson; Hyungsoo Choi; Kyekyoon Kim

doi:10.1063/5.0251605

Phase-pure formamidinium lead iodide perovskite films deposited via flow-limited field-injection electrostatic spraying

Riley Vesto, Matthew Pianfetti, Griffin Rzonca, Frank Kelly, Rebekah Wilson, Hyungsoo Choi, Kyekyoon Kim

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

Abstract

Phase-pure perovskite formamidinium lead iodide (FPI) films were deposited using flow-limited field-injection electrostatic spraying at a deposition temperature of 120 °C without employing stabilizing additives while retaining large-area scalability. The structures of the films were analyzed using the Rietveld refinement of x-ray diffraction measurements, enabling achievement of phase purity under optimized charging voltage and deposition temperature. The effect of precursor molar ratio on the phase of FPI was investigated by Fourier transform infrared spectroscopy, revealing the crucial role of the FAPbI₃ · DMSO adduct formed in solution for achieving phase purity. Optical properties and photoactivity were assessed by absorption spectroscopy and time-resolved photoluminescence, demonstrating viability for application to solar cells.

Original language	English (US)
Article number	025318
Journal	AIP Advances
Volume	15
Issue number	2
DOIs	https://doi.org/10.1063/5.0251605
State	Published - Feb 1 2025

ASJC Scopus subject areas

General Physics and Astronomy

Online availability

10.1063/5.0251605License: CC BY-NC

Library availability

Discover UIUC Full Text

Cite this

@article{ae869876eeb948c9b47292de20515ca1,

title = "Phase-pure formamidinium lead iodide perovskite films deposited via flow-limited field-injection electrostatic spraying",

abstract = "Phase-pure perovskite formamidinium lead iodide (FPI) films were deposited using flow-limited field-injection electrostatic spraying at a deposition temperature of 120 °C without employing stabilizing additives while retaining large-area scalability. The structures of the films were analyzed using the Rietveld refinement of x-ray diffraction measurements, enabling achievement of phase purity under optimized charging voltage and deposition temperature. The effect of precursor molar ratio on the phase of FPI was investigated by Fourier transform infrared spectroscopy, revealing the crucial role of the FAPbI3 · DMSO adduct formed in solution for achieving phase purity. Optical properties and photoactivity were assessed by absorption spectroscopy and time-resolved photoluminescence, demonstrating viability for application to solar cells.",

author = "Riley Vesto and Matthew Pianfetti and Griffin Rzonca and Frank Kelly and Rebekah Wilson and Hyungsoo Choi and Kyekyoon Kim",

note = "The authors would like to thank Natalie Becerra-Stasiewicz for help in the FTIR measurement. This work was financially supported by the U.S. Army CERL, Grant No. W9132T22C0017. The material characterization was carried out in part at the Materials Research Laboratory Central Research Facilities, University of Illinois.",

year = "2025",

month = feb,

day = "1",

doi = "10.1063/5.0251605",

language = "English (US)",

volume = "15",

journal = "AIP Advances",

issn = "2158-3226",

publisher = "American Institute of Physics",

number = "2",

}

TY - JOUR

T1 - Phase-pure formamidinium lead iodide perovskite films deposited via flow-limited field-injection electrostatic spraying

AU - Vesto, Riley

AU - Pianfetti, Matthew

AU - Rzonca, Griffin

AU - Kelly, Frank

AU - Wilson, Rebekah

AU - Choi, Hyungsoo

AU - Kim, Kyekyoon

N1 - The authors would like to thank Natalie Becerra-Stasiewicz for help in the FTIR measurement. This work was financially supported by the U.S. Army CERL, Grant No. W9132T22C0017. The material characterization was carried out in part at the Materials Research Laboratory Central Research Facilities, University of Illinois.

PY - 2025/2/1

Y1 - 2025/2/1

N2 - Phase-pure perovskite formamidinium lead iodide (FPI) films were deposited using flow-limited field-injection electrostatic spraying at a deposition temperature of 120 °C without employing stabilizing additives while retaining large-area scalability. The structures of the films were analyzed using the Rietveld refinement of x-ray diffraction measurements, enabling achievement of phase purity under optimized charging voltage and deposition temperature. The effect of precursor molar ratio on the phase of FPI was investigated by Fourier transform infrared spectroscopy, revealing the crucial role of the FAPbI3 · DMSO adduct formed in solution for achieving phase purity. Optical properties and photoactivity were assessed by absorption spectroscopy and time-resolved photoluminescence, demonstrating viability for application to solar cells.

AB - Phase-pure perovskite formamidinium lead iodide (FPI) films were deposited using flow-limited field-injection electrostatic spraying at a deposition temperature of 120 °C without employing stabilizing additives while retaining large-area scalability. The structures of the films were analyzed using the Rietveld refinement of x-ray diffraction measurements, enabling achievement of phase purity under optimized charging voltage and deposition temperature. The effect of precursor molar ratio on the phase of FPI was investigated by Fourier transform infrared spectroscopy, revealing the crucial role of the FAPbI3 · DMSO adduct formed in solution for achieving phase purity. Optical properties and photoactivity were assessed by absorption spectroscopy and time-resolved photoluminescence, demonstrating viability for application to solar cells.

UR - http://www.scopus.com/inward/record.url?scp=85217930034&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85217930034&partnerID=8YFLogxK

U2 - 10.1063/5.0251605

DO - 10.1063/5.0251605

M3 - Article

AN - SCOPUS:85217930034

SN - 2158-3226

VL - 15

JO - AIP Advances

JF - AIP Advances

IS - 2

M1 - 025318

ER -

Phase-pure formamidinium lead iodide perovskite films deposited via flow-limited field-injection electrostatic spraying

Abstract

ASJC Scopus subject areas

Online availability

Library availability

Related links

Fingerprint

Cite this