Direct Magnetism Modulation of CsPbBr3 Quantum Dots/Cobalt Heterostructures by Laser Illumination for Spintronic Applications

Shi Yu Liu; Ting Hao Chen; Bing Tsun Wu; Po Hsiang Hsu; Zih En Lin; Wei Hsiang Wang; Meng Cheng Yen; Chia Jung Lee; Ya Ju Lee; Wen Chin Lin

doi:10.1021/acsanm.3c02377

Direct Magnetism Modulation of CsPbBr₃ Quantum Dots/Cobalt Heterostructures by Laser Illumination for Spintronic Applications

Shi Yu Liu, Ting Hao Chen, Bing Tsun Wu, Po Hsiang Hsu, Zih En Lin, Wei Hsiang Wang, Meng Cheng Yen, Chia Jung Lee, Ya Ju Lee^*, Wen Chin Lin^*

^*Corresponding author for this work

Department of Physics

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

2 Citations (Scopus)

Abstract

A strong demand currently exists for ferromagnetic (FM) materials with adjustable magnetic properties. In this study, using laser illumination, we demonstrated the direct and efficient modulation of the magnetism of thin FM films covered by all-inorganic cesium lead bromide (CsPbBr₃) perovskite quantum dots (QDs). The surface morphology and characteristic sizes of the CsPbBr₃ QDs changed considerably and evolved gradually with the increase in the laser illumination time, triggering a series of redox and interfacial diffusion processes, particularly at the interface of the CsPbBr₃ QDs/Co heterostructure. The magnetic properties were thus adjustable by varying the magnetic hysteresis loop in accordance with the Co thin film thickness. We believe that this study will pave the way for advanced spintronic applications.

Original language	English
Pages (from-to)	14841-14848
Number of pages	8
Journal	ACS Applied Nano Materials
Volume	6
Issue number	16
DOIs	https://doi.org/10.1021/acsanm.3c02377
Publication status	Published - 2023 Aug 25

Keywords

ferromagnetic
heterostructure
laser illumination
perovskite
quantum dots

ASJC Scopus subject areas

General Materials Science

Access to Document

10.1021/acsanm.3c02377

Cite this

@article{339eee2ce3824328940dcc823fbfb843,

title = "Direct Magnetism Modulation of CsPbBr3 Quantum Dots/Cobalt Heterostructures by Laser Illumination for Spintronic Applications",

abstract = "A strong demand currently exists for ferromagnetic (FM) materials with adjustable magnetic properties. In this study, using laser illumination, we demonstrated the direct and efficient modulation of the magnetism of thin FM films covered by all-inorganic cesium lead bromide (CsPbBr3) perovskite quantum dots (QDs). The surface morphology and characteristic sizes of the CsPbBr3 QDs changed considerably and evolved gradually with the increase in the laser illumination time, triggering a series of redox and interfacial diffusion processes, particularly at the interface of the CsPbBr3 QDs/Co heterostructure. The magnetic properties were thus adjustable by varying the magnetic hysteresis loop in accordance with the Co thin film thickness. We believe that this study will pave the way for advanced spintronic applications.",

keywords = "ferromagnetic, heterostructure, laser illumination, perovskite, quantum dots",

author = "Liu, {Shi Yu} and Chen, {Ting Hao} and Wu, {Bing Tsun} and Hsu, {Po Hsiang} and Lin, {Zih En} and Wang, {Wei Hsiang} and Yen, {Meng Cheng} and Lee, {Chia Jung} and Lee, {Ya Ju} and Lin, {Wen Chin}",

note = "Publisher Copyright: {\textcopyright} 2023 American Chemical Society",

year = "2023",

month = aug,

day = "25",

doi = "10.1021/acsanm.3c02377",

language = "English",

volume = "6",

pages = "14841--14848",

journal = "ACS Applied Nano Materials",

issn = "2574-0970",

publisher = "American Chemical Society",

number = "16",

}

TY - JOUR

T1 - Direct Magnetism Modulation of CsPbBr3 Quantum Dots/Cobalt Heterostructures by Laser Illumination for Spintronic Applications

AU - Liu, Shi Yu

AU - Chen, Ting Hao

AU - Wu, Bing Tsun

AU - Hsu, Po Hsiang

AU - Lin, Zih En

AU - Wang, Wei Hsiang

AU - Yen, Meng Cheng

AU - Lee, Chia Jung

AU - Lee, Ya Ju

AU - Lin, Wen Chin

PY - 2023/8/25

Y1 - 2023/8/25

N2 - A strong demand currently exists for ferromagnetic (FM) materials with adjustable magnetic properties. In this study, using laser illumination, we demonstrated the direct and efficient modulation of the magnetism of thin FM films covered by all-inorganic cesium lead bromide (CsPbBr3) perovskite quantum dots (QDs). The surface morphology and characteristic sizes of the CsPbBr3 QDs changed considerably and evolved gradually with the increase in the laser illumination time, triggering a series of redox and interfacial diffusion processes, particularly at the interface of the CsPbBr3 QDs/Co heterostructure. The magnetic properties were thus adjustable by varying the magnetic hysteresis loop in accordance with the Co thin film thickness. We believe that this study will pave the way for advanced spintronic applications.

AB - A strong demand currently exists for ferromagnetic (FM) materials with adjustable magnetic properties. In this study, using laser illumination, we demonstrated the direct and efficient modulation of the magnetism of thin FM films covered by all-inorganic cesium lead bromide (CsPbBr3) perovskite quantum dots (QDs). The surface morphology and characteristic sizes of the CsPbBr3 QDs changed considerably and evolved gradually with the increase in the laser illumination time, triggering a series of redox and interfacial diffusion processes, particularly at the interface of the CsPbBr3 QDs/Co heterostructure. The magnetic properties were thus adjustable by varying the magnetic hysteresis loop in accordance with the Co thin film thickness. We believe that this study will pave the way for advanced spintronic applications.

KW - ferromagnetic

KW - heterostructure

KW - laser illumination

KW - perovskite

KW - quantum dots

UR - http://www.scopus.com/inward/record.url?scp=85168488657&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85168488657&partnerID=8YFLogxK

U2 - 10.1021/acsanm.3c02377

DO - 10.1021/acsanm.3c02377

M3 - Article

AN - SCOPUS:85168488657

SN - 2574-0970

VL - 6

SP - 14841

EP - 14848

JO - ACS Applied Nano Materials

JF - ACS Applied Nano Materials

IS - 16

ER -