Chemical doping of lead-free metal-halide-perovskite related materials for efficient white-light photoluminescence

Nie, Jingheng; Zhou, Bo; Fang, Shaofan; Wang, Ye; Wang, Yu; Tian, Bingbing; Hu, Hanlin; Zhong, Haizhe; Li, Henan; Shi, Yumeng

doi:10.1016/j.mtphys.2023.100992

Cited by 33 publications

(30 citation statements)

References 141 publications

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“…Thus, the low-energy emission at 660 nm can be attributed to STE emission. The binding energy ( E b ) of (TMA) 2 HfCl 6 : Sb 3+ can be fitted by the following function: 49,50 I ( T ) = I 0 /(1 + A exp − E b /k B T )where I 0 is the integrated intensity at 0 K and A is a constant. Fig.…”

Section: Resultsmentioning

confidence: 99%

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Excitation-dependent efficient photoluminescence in an organic–inorganic (C₄H₁₂N)₂HfCl₆ perovskite induced by antimony doping

Nie,

Yun,

Liu

et al. 2024

Mater. Chem. Front.

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Section: Resultsmentioning

confidence: 99%

“…Thus, the low-energy emission at 660 nm can be attributed to STE emission. The binding energy (E b ) of (TMA) 2 HfCl 6 : Sb 3+ can be fitted by the following function: 49,50…”

Section: Resultsmentioning

confidence: 99%

Excitation-dependent efficient photoluminescence in an organic–inorganic (C₄H₁₂N)₂HfCl₆ perovskite induced by antimony doping

Nie,

Yun,

Liu

et al. 2024

Mater. Chem. Front.

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“…The similar uncertainty of broadband emission origin also widely exists in other Bi 3+ , Sb 3+ , and Te 4+ involved MHPVK systems. [ 127,141,144–157 ]…”

Section: Comparison Of Self‐trapped Excitons and Ns2 Ions In Metal Ha...mentioning

confidence: 99%

“…The similar uncertainty of broadband emission origin also widely exists in other Bi 3+ , Sb 3+ , and Te 4+ involved MHPVK systems. [127,141,[144][145][146][147][148][149][150][151][152][153][154][155][156][157] On the other hand, both of intrinsic and extrinsic STEs, they are relevant to the host matrix, reflecting the properties of crystals, while the ns 2 ion dictates the behavior of dopants itself. Besides, there is a clear difference when performing an "ultrafast look" at the excitation dynamics of STEs-and ns 2 ionsdictated emission in the MHPVK.…”

Section: Comparison Of Self-trapped Excitons and Ns 2 Ions In Metal H...mentioning

confidence: 99%

Broadband Emission Origin in Metal Halide Perovskites: Are Self‐Trapped Excitons or Ions?

Jiang

et al. 2023

Advanced Materials

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It has always been a goal to realize high efficiency and broadband emission in the single‐component materials. The appearance of metal halide perovskites makes it possible. Their soft lattice characteristics and significant electron‐phonon coupling synergistically generate the self‐trapped excitons (STEs), contributing to the broadband emission with a large Stokes shift. Meanwhile, their structural/compositional diversity provides suitable active sites and coordination environments for ns2 ions doping, allowing 3Pn (n = 0, 1, 2)→1S0 transitions toward the broadband emission. The ns2 ions emission is phenomenologically similar to that of the STE emission, preventing people from in‐depth understanding their emission origin, thus failure to meeting the design requirements to serve the various sectors of practical applications. In this scenario, we deploy this review by summarizing the fundamentals and development of such two emission mechanisms, to establish a clear and comprehensive understanding of the broadband emission phenomenon, which may pave the way to an ideal customization of broadband‐emission metal halide perovskites.This article is protected by copyright. All rights reserved

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“…15−23 According to the strength of the interaction between the doping center and the perovskite host, from weak to strong, the effects caused by optical dopants can be classified as Ln 3+ -like inner configuration transitions (Ln: lanthanide), Mn 2+ -like d−d transitions, and ns 2 -ion-like selftrapped exciton (STE) emissions. 13,24,25 These give sharp, broad, and ultrabroad emissions, respectively. Because of the ultra-broadband emissions of STEs, perovskite materials with efficient STE emissions are promising candidates for continuum white light sources.…”

Section: Introductionmentioning

confidence: 99%

Dexter Energy Transfer in Zero-Dimensional Inorganic Metal Halides for Obtaining Near-Unity PLQY via Sb³⁺/Mn²⁺ Codoping

Zhou,

Muhammad,

Ding

et al. 2023

J. Phys. Chem. C

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Multi-ion codoping strategies have been intensively studied for metal halide perovskite optical engineering. Although tunable dual broadband emissions can be achieved by pairing Sb 3+ /Mn 2+ doping centers in metal halide hosts, there have been few reports of highly efficient light emission with a nearunity photoluminescence quantum yield (PLQY). In this study, Mn 2+ dopants are incorporated into a Sb 3+ -doped Rb 4 CdCl 6 system. Tunable dual emissions and a substantial increase in the PLQY from ∼60% to near-unity (98%) are achieved. Energy transfer is strong and localized and occurs only between the Sb 3+ donor and the adjacent Mn 2+ acceptor. The green self-trapped exciton emission (524 nm) is converted into a red d−d emission (607 nm) without changing the excitation profile. The Sb 3+ optical centers without adjacent Mn 2+ species maintained their original green emission. Spectroscopic and probabilistic investigations showed that the luminescent and thermally quenched Sb 3+ optical centers play identical roles in the energy-transfer process, and nonradiative recombination was successfully inhibited. These findings clarify how Sb 3+ and Mn 2+ dopants couple in the metal halide host and facilitate the design of high-performance materials that give tunable broadband fluorescence via an energy-transfer process.

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Chemical doping of lead-free metal-halide-perovskite related materials for efficient white-light photoluminescence

Cited by 33 publications

References 141 publications

Excitation-dependent efficient photoluminescence in an organic–inorganic (C₄H₁₂N)₂HfCl₆ perovskite induced by antimony doping

Excitation-dependent efficient photoluminescence in an organic–inorganic (C₄H₁₂N)₂HfCl₆ perovskite induced by antimony doping

Broadband Emission Origin in Metal Halide Perovskites: Are Self‐Trapped Excitons or Ions?

Dexter Energy Transfer in Zero-Dimensional Inorganic Metal Halides for Obtaining Near-Unity PLQY via Sb³⁺/Mn²⁺ Codoping

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Chemical doping of lead-free metal-halide-perovskite related materials for efficient white-light photoluminescence

Cited by 33 publications

References 141 publications

Excitation-dependent efficient photoluminescence in an organic–inorganic (C4H12N)2HfCl6 perovskite induced by antimony doping

Excitation-dependent efficient photoluminescence in an organic–inorganic (C4H12N)2HfCl6 perovskite induced by antimony doping

Broadband Emission Origin in Metal Halide Perovskites: Are Self‐Trapped Excitons or Ions?

Dexter Energy Transfer in Zero-Dimensional Inorganic Metal Halides for Obtaining Near-Unity PLQY via Sb3+/Mn2+ Codoping

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Excitation-dependent efficient photoluminescence in an organic–inorganic (C₄H₁₂N)₂HfCl₆ perovskite induced by antimony doping

Excitation-dependent efficient photoluminescence in an organic–inorganic (C₄H₁₂N)₂HfCl₆ perovskite induced by antimony doping

Dexter Energy Transfer in Zero-Dimensional Inorganic Metal Halides for Obtaining Near-Unity PLQY via Sb³⁺/Mn²⁺ Codoping