Citation: Husitu Lin, Shuangkun Zhang, Dianfa Zhao, Yongkang Wang, Wei Liu, Fan Yang, Jianjun Liu, Dongpeng Yan, Zhanpeng Wu. Flexible polyphosphazene nanocomposite films: Enhancing stability and luminescence of CsPbBr₃ perovskite nanocrystals[J]. Chinese Chemical Letters, ;2025, 36(4): 109795. doi: 10.1016/j.cclet.2024.109795 shu

Flexible polyphosphazene nanocomposite films: Enhancing stability and luminescence of CsPbBr₃ perovskite nanocrystals

Husitu Lin ^a ,
Shuangkun Zhang ^a ,
Dianfa Zhao ^a ,
Yongkang Wang ^a ,
Wei Liu ^a ,
Fan Yang ^{d, *,} ,
Jianjun Liu ^{c, *,} ,
Dongpeng Yan ^{b, *,} ,
Zhanpeng Wu ^{a, *,}

a.
State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
b.
Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, China
c.
State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
d.
School of Chemistry & Chemical Engineering and Environmental Engineering, Weifang University, Weifang 261061, China

18813193360@163.com

liujj@mail.buct.edu.cn

yandp@bnu.edu.cn

wuzp@mail.buct.edu.cn

Received Date: 31 January 2024
Revised Date: 13 March 2024
Accepted Date: 19 March 2024
Available Online: 19 March 2024

Figures(11)

Polyphosphazene with phenoxy or 4-ester phenoxy as pendent groups are demonstrated as both ligands and host matrices for CsPbBr₃ perovskite nanocrystals (NCs). These polymers produced flexible nanocomposite films with excellent NCs dispersion, optical transparency and stability in various extreme conditions. Both films remained stable even after 30 days of air storage. CsPbBr₃/poly[bis(phenoxy phosphazene)] (PBPP) delivered better air and light stability, and CsPbBr₃/poly[bis(4-esterphenoxy)phosphazene] (PBEPP) exhibited superior water and heat resistance. CsPbBr₃/PBEPP showed a greater increase in fluorescence intensity under 365 nm UV light and demonstrated a 10% luminescence increase after 96 h of water immersion and even at high temperature (150 ℃). These findings thus provide new insight into flexible luminescent CsPbBr₃ films with high stability in optoelectronic applications.
- Polyphosphazene,
- CsPbBr₃,
- Quantum dots,
- Encapsulation,
- Luminescent properties,
- High stability
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Flexible polyphosphazene nanocomposite films: Enhancing stability and luminescence of CsPbBr3 perovskite nanocrystals

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通讯作者: 陈斌, bchen63@163.com

Flexible polyphosphazene nanocomposite films: Enhancing stability and luminescence of CsPbBr₃ perovskite nanocrystals