Lead-Free Inorganic Nanoparticles of Perovskite Embedded within Waterproof Nanofiber Films for White Color Emission

Yongju Lee; Ji Hyun Cha; Heejin Kim; Ja Yeon Lee; Min Wook Lee; Ho Seong Jang; Duk Young Jung

doi:10.1021/acsanm.2c04261

Lead-Free Inorganic Nanoparticles of Perovskite Embedded within Waterproof Nanofiber Films for White Color Emission

Yongju Lee
, Ji Hyun Cha
, Heejin Kim
, Ja Yeon Lee
, Min Wook Lee
, Ho Seong Jang
, Duk Young Jung

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

10 Scopus citations

Abstract

Organic polymers can enhance the environmental stability of inorganic perovskite nanocrystals (IPNCs) by encapsulation. We fabricated lead-free IPNCs embedded in waterproof and luminous polymer fibers. The encapsulated perovskite nanocrystals within polystyrene (PS) polymers, CsCu2I3@PS (Y-fiber), and Cs3Cu2I5@PS (B-fiber) were prepared by one-step electrospinning of the solutions containing the precursors (CsI and CuI) and PS. The embedded nanocrystals had highly uniform sizes, spatial distribution, and well-developed crystal structures. The Y- and B-fibers showed yellow and blue emission under ultraviolet (UV) light, respectively, and a white emission fiber layer was fabricated via dual-nozzle coelectrospinning using CsCu2I3 and Cs3Cu2I5 precursor solutions. The as-prepared B-fibers exhibited improved water stability without changing the crystal structure and photoluminescence (PL) emission in deionized water for 20 days. To enhance environmental stability and mechanical properties, transparent poly(dimethylsiloxane) (PDMS) films containing IPNCs@PS fibers presented strong PL emission without peak shift under 100% tensile strain, indicating highly flexible and humidity-durable characteristics.

Original language	English
Pages (from-to)	18409-18416
Number of pages	8
Journal	ACS Applied Nano Materials
Volume	5
Issue number	12
DOIs	https://doi.org/10.1021/acsanm.2c04261
State	Published - 23 Dec 2022
Externally published	Yes

Keywords

electrospinning
emission color tuning
hybrid fiber
lead-free inorganic perovskite
water stability

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10.1021/acsanm.2c04261

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title = "Lead-Free Inorganic Nanoparticles of Perovskite Embedded within Waterproof Nanofiber Films for White Color Emission",

abstract = "Organic polymers can enhance the environmental stability of inorganic perovskite nanocrystals (IPNCs) by encapsulation. We fabricated lead-free IPNCs embedded in waterproof and luminous polymer fibers. The encapsulated perovskite nanocrystals within polystyrene (PS) polymers, CsCu2I3@PS (Y-fiber), and Cs3Cu2I5@PS (B-fiber) were prepared by one-step electrospinning of the solutions containing the precursors (CsI and CuI) and PS. The embedded nanocrystals had highly uniform sizes, spatial distribution, and well-developed crystal structures. The Y- and B-fibers showed yellow and blue emission under ultraviolet (UV) light, respectively, and a white emission fiber layer was fabricated via dual-nozzle coelectrospinning using CsCu2I3 and Cs3Cu2I5 precursor solutions. The as-prepared B-fibers exhibited improved water stability without changing the crystal structure and photoluminescence (PL) emission in deionized water for 20 days. To enhance environmental stability and mechanical properties, transparent poly(dimethylsiloxane) (PDMS) films containing IPNCs@PS fibers presented strong PL emission without peak shift under 100\% tensile strain, indicating highly flexible and humidity-durable characteristics.",

keywords = "electrospinning, emission color tuning, hybrid fiber, lead-free inorganic perovskite, water stability",

author = "Yongju Lee and Cha, \{Ji Hyun\} and Heejin Kim and Lee, \{Ja Yeon\} and Lee, \{Min Wook\} and Jang, \{Ho Seong\} and Jung, \{Duk Young\}",

note = "Publisher Copyright: {\textcopyright} 2022 American Chemical Society.",

year = "2022",

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doi = "10.1021/acsanm.2c04261",

language = "English",

volume = "5",

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TY - JOUR

T1 - Lead-Free Inorganic Nanoparticles of Perovskite Embedded within Waterproof Nanofiber Films for White Color Emission

AU - Lee, Yongju

AU - Cha, Ji Hyun

AU - Kim, Heejin

AU - Lee, Ja Yeon

AU - Lee, Min Wook

AU - Jang, Ho Seong

AU - Jung, Duk Young

PY - 2022/12/23

Y1 - 2022/12/23

N2 - Organic polymers can enhance the environmental stability of inorganic perovskite nanocrystals (IPNCs) by encapsulation. We fabricated lead-free IPNCs embedded in waterproof and luminous polymer fibers. The encapsulated perovskite nanocrystals within polystyrene (PS) polymers, CsCu2I3@PS (Y-fiber), and Cs3Cu2I5@PS (B-fiber) were prepared by one-step electrospinning of the solutions containing the precursors (CsI and CuI) and PS. The embedded nanocrystals had highly uniform sizes, spatial distribution, and well-developed crystal structures. The Y- and B-fibers showed yellow and blue emission under ultraviolet (UV) light, respectively, and a white emission fiber layer was fabricated via dual-nozzle coelectrospinning using CsCu2I3 and Cs3Cu2I5 precursor solutions. The as-prepared B-fibers exhibited improved water stability without changing the crystal structure and photoluminescence (PL) emission in deionized water for 20 days. To enhance environmental stability and mechanical properties, transparent poly(dimethylsiloxane) (PDMS) films containing IPNCs@PS fibers presented strong PL emission without peak shift under 100% tensile strain, indicating highly flexible and humidity-durable characteristics.

AB - Organic polymers can enhance the environmental stability of inorganic perovskite nanocrystals (IPNCs) by encapsulation. We fabricated lead-free IPNCs embedded in waterproof and luminous polymer fibers. The encapsulated perovskite nanocrystals within polystyrene (PS) polymers, CsCu2I3@PS (Y-fiber), and Cs3Cu2I5@PS (B-fiber) were prepared by one-step electrospinning of the solutions containing the precursors (CsI and CuI) and PS. The embedded nanocrystals had highly uniform sizes, spatial distribution, and well-developed crystal structures. The Y- and B-fibers showed yellow and blue emission under ultraviolet (UV) light, respectively, and a white emission fiber layer was fabricated via dual-nozzle coelectrospinning using CsCu2I3 and Cs3Cu2I5 precursor solutions. The as-prepared B-fibers exhibited improved water stability without changing the crystal structure and photoluminescence (PL) emission in deionized water for 20 days. To enhance environmental stability and mechanical properties, transparent poly(dimethylsiloxane) (PDMS) films containing IPNCs@PS fibers presented strong PL emission without peak shift under 100% tensile strain, indicating highly flexible and humidity-durable characteristics.

KW - electrospinning

KW - emission color tuning

KW - hybrid fiber

KW - lead-free inorganic perovskite

KW - water stability

UR - https://www.scopus.com/pages/publications/85144579001

U2 - 10.1021/acsanm.2c04261

DO - 10.1021/acsanm.2c04261

M3 - Article

AN - SCOPUS:85144579001

SN - 2574-0970

VL - 5

SP - 18409

EP - 18416

JO - ACS Applied Nano Materials

JF - ACS Applied Nano Materials

IS - 12

ER -

Lead-Free Inorganic Nanoparticles of Perovskite Embedded within Waterproof Nanofiber Films for White Color Emission

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Keywords

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