Modulating photoelectron localization degree to achieve controllable photoluminescence quenching and activation of 0D hybrid antimony perovskites

Li, Dongyang; Yu, Cunjiang; Hou, Yu-Han; Song, Junhua; Sun, Chuan-Ju; Yue, Cheng‐Yang; Lei, Xiao‐Wu

doi:10.1039/d1tc05807j

Cited by 26 publications

(31 citation statements)

References 53 publications

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“…Notably, the transitions 1 S 0 – 3 P 0 and 1 S 0 – 3 P 2 are forbidden, while 1 S 0 – 3 P 1 and 1 S 0 – 1 P 1 are permitted transitions by the spin–orbit interaction. Moreover, the excited state of 3 P 1 and 1 P 1 can be coupled with different multiphones to form singlet and triplet STEs for their large separation. , Hence, the photophysical processes of (C 25 H 22 P) 2 SbCl 5 are given as follows (Figure d): upon the high energy photoexcitation (e.g., 300 nm), the electrons are excited from 1 S 0 to 3 P 1 and 1 P 1 states. Then, the excited electrons undergo intersystem crossing from 1 P 1 to the singlet self-trapped state or 3 P 1 to the triplet self-trapped state in the [SbCl 5 ] 2– clusters and further return to the ground state to generate a high energy emission band of peak 1 (singlet STE emission) and a low energy emission band of peak 2 (triplet STE emission), respectively.…”

Section: Resultsmentioning

confidence: 99%

Realizing High-Efficiency Yellow Emission of Organic Antimony Halides via Rational Structural Design

Peng

Wei

et al. 2022

ACS Appl. Mater. Interfaces

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Zero-dimensional (0D) organic metal halides have captured extensive attention for their various structures and distinguished optical characteristics. However, achieving efficient emission through rational crystal structure design remains a great challenge, and how the crystal structure affects the photophysical properties of 0D metal halides is currently unclear. Herein, a rational crystal structure regulation strategy in 0D Sb(III)-based metal halides is proposed to realize near-unity photoluminescence quantum yield (PLQY). Specifically, two 0D organic Sb(III)-based compounds with different coordination configurations, namely, (C25H22P)2SbCl5 and (C25H22P)SbCl4 (C25H22P+ = benzyltriphenylphosphonium), were successfully obtained by precisely controlling the ratio of the initial raw materials. (C25H22P)2SbCl5 adopts an octahedral coordination geometry and shows highly efficient broadband yellow emission with a PLQY of 98.6%, while (C25H22P)SbCl4 exhibits a seesaw-shaped [SbCl4]− cluster and does not emit light under photoexcitation. Theoretical calculations reveal that, by rationally controlling the coordination structure, the indirect bandgap of (C25H22P)SbCl4 can be converted to the direct bandgap of (C25H22P)2SbCl5, thus ultimately boosting the emission intensity. Together with efficient emission and outstanding stability of (C25H22P)2SbCl5, a high-performance white-light emitting diode (WLED) with a high luminous efficiency of 31.2 lm W–1 is demonstrated. Our findings provide a novel strategy to regulate the coordination structure of the crystals, so as to rationally optimize the luminescence properties of organic metal halides.

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Section: Resultsmentioning

confidence: 99%

Realizing High-Efficiency Yellow Emission of Organic Antimony Halides via Rational Structural Design

Peng

Wei

et al. 2022

ACS Appl. Mater. Interfaces

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“…It was found that the PL quantum yields (QY) of some 0D OIMHs are closely related to the distance between neighboring anions [8o,s, 24] . Researchers have concluded the trend that a larger distance between the [ MX n ] m − of OIMHs would perhaps result in a larger QY [8o,s, 24] . The regulation has been reported both in Mn and Sb 3+ based OIMHs [8o,24] .…”

Section: Luminescent Mechanism and Structure‐luminescent Property Rel...mentioning

confidence: 98%

“…The distance between neighboring anions is another important structural parameter in OIMHs [8s,24] . It was found that the PL quantum yields (QY) of some 0D OIMHs are closely related to the distance between neighboring anions [8o,s, 24] . Researchers have concluded the trend that a larger distance between the [ MX n ] m − of OIMHs would perhaps result in a larger QY [8o,s, 24] .…”

Section: Luminescent Mechanism and Structure‐luminescent Property Rel...mentioning

confidence: 99%

Luminescent Organic‐Inorganic Hybrid Metal Halides: An Emerging Class of Stimuli‐Responsive Materials

Wang

Huang

2022

Chemistry A European J

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Luminescent organic-inorganic metal halides (OIMHs) are well known as a new materials family in recent years. Novel materials and applications of luminescent OIMHs have been explored by changing either the organic component or the metal halide species. Thereinto, the stimuliresponsive (SR) phenomena in OIMHs have drawn much attention recently, for not only their attractive application potential but also the helpfulness in understanding the stability of OIMHs to the external environment. Herein, the luminescent OIMHs that are sensitive to external stimuli including contact, pressure, mechanical grinding, light, heat, and gas molecules, are reviewed, with an emphasis on analyses of the structural change during the SR process. The applications of SR luminescent OIMHs in widespread fields, including gas sensing, information encryption, and rewritable luminescent paper are summarized. Finally, the challenges that deserve to be further explored in this research field are discussed, which provides certain guidance for the future study of SR luminescent OIMHs.

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“…16 Other studies have shown that Sb 3+ is an excellent luminescent center. 11,17 Therefore, further studies on the relationship between the emission intensity and the structural distortion of Sb 3+ -doped OIMHs are required.…”

Section: Introductionmentioning

confidence: 99%

Antimony and bismuth cooperation to enhance the broad yellow photoluminescence of zero-dimensional hybrid halide

et al. 2022

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Modulating photoelectron localization degree to achieve controllable photoluminescence quenching and activation of 0D hybrid antimony perovskites

Abstract: Concentration caused quenching (CCQ) effect seriously deteriorates the photoluminescence (PL) efficiency of 0D organic-inorganic hybrid halide perovskite, but reasonable management of CCQ via accurate structural design strategy remains a formidable...

Cited by 26 publications

References 53 publications

Realizing High-Efficiency Yellow Emission of Organic Antimony Halides via Rational Structural Design

Realizing High-Efficiency Yellow Emission of Organic Antimony Halides via Rational Structural Design

Luminescent Organic‐Inorganic Hybrid Metal Halides: An Emerging Class of Stimuli‐Responsive Materials

Antimony and bismuth cooperation to enhance the broad yellow photoluminescence of zero-dimensional hybrid halide

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