Tunable luminescent color from green to blue on long afterglow materials using CsPbBr3 quantum dots

Hai, Ou; Pei, Mengkang; Yang, Enlong; Wu, Xiulan; Zhao, Yujing; Du, Liang

doi:10.1016/j.apsusc.2021.150941

Cited by 12 publications

(6 citation statements)

References 65 publications

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“…The long afterglow luminescence can be maintained up to 80% of photoluminescence after 10 days in air. [ 229 ] Hou and co‐workers reported an efficient PL tuning by coating cyclodextrin complex of rhodamine 6G with (2‐hydroxypropyl)‐β‐cyclodextrin on the surface of SrAl 2 O 4 :Eu 2+ ,Dy 3+ . [ 230 ] The cyclodextrin complex was used as light conversion material.…”

Section: Multi‐color Persistent Luminescencementioning

confidence: 99%

Recent Progress in Inorganic Afterglow Materials: Mechanisms, Persistent Luminescent Properties, Modulating Methods, and Bioimaging Applications

Yang

Gai

Ding

et al. 2023

Advanced Optical Materials

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The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adom.202202382.the stored excitation energy in energy traps, which can be released by thermal stimulation. [2] Obviously, the process is very different from the real-time excited fluorescence (FL). Usually, the excitation source can be X-ray, ultraviolet (UV), and visible (Vis) light, and there is no need for continuous external light irradiation, while the PL may locate in UV, Vis, or near-infrared (NIR) spectral regions. [3] Especially, Vis emissions are easy to be modulated for colorful light, and NIR emissions in the biological window (≈650-1800 nm) offer deep tissue penetration and prevented autofluorescence. [3a,4] According to the outstanding luminescent properties, enormous opportunities in diverse application fields have been discovered, mainly including long-lasting tumor optical imaging and therapy, [5] security and anti-counterfeiting, [6] optical information and data storage, [7] photocatalysis, [8] fingerprint recognition, [6c] analysis and sensing, [1c,4a,9] as well as the potential applications of synaptic plasticity [10] and light-emitting diodes. [11] Retrieved from Web of Science, > 6800 articles by tracing the themes "afterglow" or "persistent luminescence" or "longlasting luminescence" have been published during the last decade (i.e., ≈2012-2022). Diverse categories of persistent luminescent materials have been developed, such as organic materials, [12] carbon dots, [13] metal-organic frameworks, [14] doped inorganic crystals et al. [2,15] Among them, organic afterglow materials, usually named as organic room temperature phosphorescence materials have recently drawn extensive attention due to the advantage of sustainable resources, low cost, and safety. [16] Based on the composition, organic afterglow materials can be mainly divided into organic small molecules, polymers, and organic-inorganic hybrids, which are normally related to the radiative transition from the lowest excited triplet state (T 1 ) to the ground state (S 0 ). Thus, methods for enhancing the intersystem crossing (ISC) rate are reasonable for realizing highly efficient afterglow, such as introducing heavy atoms, paramagnetic molecules, aromatic carbonyls, heteroatoms, and crystal engineering. [17] Recently, organic room-temperature phosphorescence with a high quantum yield above 56% and long afterglow lifetime longer than 22 s has been achieved by using suitable inorganic framework. [18] Additionally, color-tunable

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Section: Multi‐color Persistent Luminescencementioning

confidence: 99%

Recent Progress in Inorganic Afterglow Materials: Mechanisms, Persistent Luminescent Properties, Modulating Methods, and Bioimaging Applications

Yang

Gai

Ding

et al. 2023

Advanced Optical Materials

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“…134 All-inorganic CsPbBr 3 QDs display adjustable afterglow and formidable stability. 135 The tuning of afterglow emission from blue to green was made possible by doping metal ions into standard CsPbBr 3 QDs, and CsPbBr 3 /Sr 2 MgSi 2 O 7 :Eu 2+ /Dy 3+ @SiO 2 exhibited 30 minutes afterglow emission under 365 nm UV light.…”

Section: Afterglow Phenomenonmentioning

confidence: 99%

Variable halide perovskites: diversification of anti-counterfeiting applications

Shi,

Zhao,

Zhou

et al. 2023

Mater. Chem. Front.

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“…A long-afterglow material is a typical photoluminescence (PL) material, which can still emit light when the external light source stops excitation. Although it has excellent energy storage capacity and long luminescence time, the luminescence color is single and the luminescence color is not adjustable. − In order to achieve light color adjustability, the long-afterglow material needs to be compounded with other materials to maximize the application potential of the long-afterglow material . In addition, nanoscale all-inorganic cesium lead halide PQDs have excellent optical properties such as tunable band gap, wide luminescence domain, high PL quantum yield, and low defect formation energy. − Unfortunately, the main disadvantages of PQDs are humidity instability, thermal instability, light instability, and oxygen sensitivity, which limit the further application of CsPbX 3 . − …”

Section: Introductionmentioning

confidence: 99%

“…19−21 In order to achieve light color adjustability, the longafterglow material needs to be compounded with other materials to maximize the application potential of the long-afterglow material. 22 In addition, nanoscale all-inorganic cesium lead halide PQDs have excellent optical properties such as tunable band gap, wide luminescence domain, high PL quantum yield, and low defect formation energy. 23−26 Unfortunately, the main disadvantages of PQDs are humidity instability, thermal instability, light instability, and oxygen sensitivity, which limit the further application of CsPbX 3 .…”

Section: Introductionmentioning

confidence: 99%

Perovskite-Based Nanostructures for Fluorescence Afterglow Anticounterfeiting

Hai

Pei

et al. 2023

ACS Appl. Nano Mater.

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Advanced fluorescence anti-counterfeiting technology has attracted the attention of researchers and encourages people to develop more materials with more colors and functions. Here, in order to achieve a full-band afterglow in the visible light region, we designed a composite CsPbI3-CsPbBr3/Sr2MgSi2O7:Eu2+,Dy3+@SiO2, which is composed of nanoscale all-inorganic cesium lead perovskite quantum dots (PQDs) and long-afterglow luminescent materials Sr2MgSi2O7:Eu2+,Dy3+ (SMS). SMS is used to store light energy, and PQDs are used to control afterglow emission colors; through their energy transfer, the afterglow colors can be adjusted in the visible region. SiO2 is used as the coating material to improve the temporary stability of the nanocomposite. The composite mixed with oleic acid (OA) can be used as a dye, which exhibits different emitting colors and afterglow colors under different excitation environments. This research provided an idea for using long-afterglow luminescent materials and PQDs in the field of fluorescence anti-counterfeiting by double anti-counterfeiting of fluorescence and afterglow.

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Tunable luminescent color from green to blue on long afterglow materials using CsPbBr3 quantum dots

Cited by 12 publications

References 65 publications

Recent Progress in Inorganic Afterglow Materials: Mechanisms, Persistent Luminescent Properties, Modulating Methods, and Bioimaging Applications

Recent Progress in Inorganic Afterglow Materials: Mechanisms, Persistent Luminescent Properties, Modulating Methods, and Bioimaging Applications

Variable halide perovskites: diversification of anti-counterfeiting applications

Perovskite-Based Nanostructures for Fluorescence Afterglow Anticounterfeiting

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