Synergetic effects of the co-doping transition metal ions and the silica-shell coating for enhancing the photoluminescence and stability of Mn: CsPbCl3 nanocrystals and their application

Zhang, Rui; Chen, Gang; Liu, Haiyun; Zhang, Jianfeng; Yuan, Yaoxin; Lv, Zehua; Zhang, Lifu; Wang, Chunlan; Qin, Zhen; Yang, Wen; Wang, Jinbin

doi:10.1016/j.optmat.2022.113308

Cited by 4 publications

(2 citation statements)

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“…Mn 2+ is the most common dopant ion in the B-site of all-inorganic lead halide perovskites. 157–162 Liu et al prepared Mn 2+ -doped CsPbBr 3 to improve the efficiency of CO 2 reduction 163 (Fig. 4).…”

Section: Modification Of All-inorganic Lead Halide Perovskitementioning

confidence: 99%

All-inorganic lead halide perovskites for photocatalysis: a review

Huang,

Yu,

et al. 2024

RSC Adv.

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Section: Modification Of All-inorganic Lead Halide Perovskitementioning

confidence: 99%

All-inorganic lead halide perovskites for photocatalysis: a review

Huang,

Yu,

et al. 2024

RSC Adv.

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“…The most widely studied Mn 2+ luminescence can be traced back to the 1980s, which exhibits a broad orange emission at ≈600 nm ( 4 T 1 -6 A 1 dorbitals). [18][19][20][21] However, the energy transfer from excited Mn 2+ of 4 T 1 state to CB electron or successive promotion of excited Mn 2+ to a higher electronic level inevitably results in severe suppression of Mn 2+ in EL spectra, therefore the orange emission is often missing in these Mn-doped WLEDs, [4,8,16] causing the low CRI and unbalanced red-green-blue luminescence. The luminescent materials with STEs emission have received much attention due to their broad emission spectrum in white lighting applications.…”

Section: Introductionmentioning

confidence: 99%

High‐Color‐Rendition White QLEDs by Balancing Red, Green and Blue Centres in Eco‐Friendly ZnCuGaS:In@ZnS Quantum Dots

Jiang,

Zhang,

Shan

et al. 2024

Advanced Materials

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White light‐emitting diodes (WLEDs) are the key component in next‐generation lighting and display devices. The inherent toxicity of Cd/Pb‐based quantum dots (QDs) limits the further application in WLEDs. Recently, more attention has been focused on eco‐friendly QDs and their WLEDs, especially the phosphor‐free WLEDs based on mono‐component, which profits from bias‐insensitive color stability. However, the imbalanced carrier distribution between red‐green‐blue luminescent centers, even the absence of a certain luminescent center, hinders their balanced and stable photoluminescence/electroluminescence (PL/EL). Here, an In3+‐doped strategy in Zn‐Cu‐Ga‐S@ZnS QDs is first proposed, and the balanced carrier distribution is realized by non‐equivalent substitution and In3+ doping concentration modulation. The alleviation of the green emitter by the In3+‐related red emitter and the compensation of blue emitter by the Zn‐related electronic states contribute to the balanced red‐green‐blue emitting with a high PL quantum yield (PLQY) of 95.3% and a long lifetime (T90) of over 1100 h in atmospheric conditions. Thus, the In3+‐doped WLEDs can achieve exceedingly slight proportional variations between red‐green‐blue EL intensity over time (∆CIE = (0.007, 0.009)), and a high champion CRI of 94.9. This study proposes a single‐component QD with balanced and stable red‐green‐blue PL/EL spectrum, meeting the requirements of lighting and display.This article is protected by copyright. All rights reserved

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