Defects and self-trapped exciton regulation in rare-earth doped all-inorganic perovskites

Chu, Anshi; Luo, Jun; Xu, Zheyuan; Xie, Yunfei; Luo, Wenjie; Li, Siyao; Liang, Jieyuan; He, Junyu; Zhang, Chi; Cai, Mengqiu; Zhuang, Xiujuan

doi:10.1039/d4tc01064g

J. Mater. Chem. C

2024

DOI: 10.1039/d4tc01064g

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Defects and self-trapped exciton regulation in rare-earth doped all-inorganic perovskites

Anshi Chu,

Jun Luo,

Zheyuan Xu

et al.

Abstract: All-inorganic lead halide perovskites CsPbX3 have attracted extensive attention due to their excellent optical and photovoltaic properties and have been applied to various novel optoelectronic devices. Transition metal ions doping...

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White Light Emission in Europium‐Doped Inorganic Perovskite Single Matrix

He,

Sun,

et al. 2024

Adv Funct Materials

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The realization of stable single‐component white light emission in metal halide perovskites is still challenging due to the fast halide ion migration and narrow luminescence bands. In this work, all‐inorganic single CsPbClxBr3−x perovskite microplates with stable red‐blue‐green triple color light emission are prepared by introducing europium ions Eu3+ as dopants. Eu doping effectively suppresses ion migration and enables two spatially separated halide phases with stable dual‐wavelength emissions. Furthermore, the incorporation of Eu3+ compensates for the absence of red‐light emission, thereby yielding a superior white emission with exceptional quality. The color rendering index of triple‐color‐emitting perovskites can be tuned successfully by controlling the halogen ratios, and the optimal microplate achieved a Commissions Internationale de l’Eclairage (CIE) coordinates of (0.32, 0.32). The results present a new enlightenment for the preparation of low‐cost single‐component white light materials.

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White Light Emission in Europium‐Doped Inorganic Perovskite Single Matrix

He,

Sun,

et al. 2024

Adv Funct Materials

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show abstract

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Defects and self-trapped exciton regulation in rare-earth doped all-inorganic perovskites

Abstract: All-inorganic lead halide perovskites CsPbX3 have attracted extensive attention due to their excellent optical and photovoltaic properties and have been applied to various novel optoelectronic devices. Transition metal ions doping...

Cited by 1 publication

References 48 publications

White Light Emission in Europium‐Doped Inorganic Perovskite Single Matrix

White Light Emission in Europium‐Doped Inorganic Perovskite Single Matrix

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