New sonochemiluminescence involving solvated electron in Ce(III)/Ce(IV) solutions

Шарипов, Г. Л.; Gareev, B.M.; Vasilyuk, Kristina S.; Galimov, Dim I.; Abdrakhmanov, A. M.

doi:10.1016/j.ultsonch.2020.105313

Cited by 11 publications

(8 citation statements)

References 25 publications

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“…As a result, these Ce 3+ ions may easily substitute the Mn 2+ , changing the crystal structure. 31 The thin films of control and doped samples were prepared by the drop-casting method, as illustrated in Scheme 1b. First, a dispersed solution of the assynthesized metal halide perovskite powders was prepared.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…However, owing to the positive standard potential (Ce 4+ /Ce 3+ pair = 1.4 V), Ce 4+ will readily accept electrons from the solution and reduce into Ce 3+ . As a result, these Ce 3+ ions may easily substitute the Mn 2+ , changing the crystal structure . The thin films of control and doped samples were prepared by the drop-casting method, as illustrated in Scheme b.…”

Section: Resultsmentioning

confidence: 99%

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Simple Water-Assisted Synthesis of Ce-Doped Lead-Free Cesium Metal Halides for Visible-Blind UV Photodetectors

Dutta

Yoo

Kwon

et al. 2022

ACS Sustainable Chem. Eng.

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Recent advances in lead-free perovskite have opened a vast doorway for sensors and energy harvesting applications. However, toxicity, complex synthesis process, and stability were the major obstacles to their success. To address these issues, here we report an effective synthesis of Cedoped lead-free metal halide in a simple, water-assisted method. Our process reduces the use of harmful organic/inorganic solvents, enabling easy and costeffective mass production. As-synthesized Ce-doped Cs 3 MnBr 5 exhibits efficient ultraviolet (UV) absorption while being blind to the visible spectrum. The introduction of the Ce 3+ dopant in the metal halide lattice shows a broadband response to UV light with violet emission spectra at 387 and 419 nm. The material also displays a promising PL lifetime of 0.0142 ms with good stability under ambient storage conditions. A UV photodetector is designed based on the Ce-doped Cs 3 MnBr 5 thin film, which shows a promising responsivity of 1.64 A/W with a detectivity of 5.3 × 10 11 jones. This study demonstrates an eco-friendly, cost-effective strategy for fabricating a UV photodetector for novel and advanced UV optoelectronic systems.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Simple Water-Assisted Synthesis of Ce-Doped Lead-Free Cesium Metal Halides for Visible-Blind UV Photodetectors

Dutta

Yoo

Kwon

et al. 2022

ACS Sustainable Chem. Eng.

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“…溶剂化电子可影响甚至调控声致化学发光 [114] , 溶剂化电子催化 [115] , 调控材料功函 [116] 图 30 水合电子向靶点转移诱导DNA损伤与破坏(a)及水合电子活化转移机理(b) [99] (网络版彩图)…”

Section: 随电场强度线性增强分子前线轨道分布和电子分布unclassified

Solvated electrons in the complex media: a review

Bu¹

2021

Sci. Sin.-Chim

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Solvated electrons are a type of weakly-bound electrons which are confined in solvents or surrounding media and are different from the atomic core and valence electrons. Their main characters are that the electron(s) are solvated by solvent molecules or micro-surrounding media, and are novel entities and special quantum dot systems. They have quite unique structures, properties and dynamics, and exhibit the promising applications. In this review, we summarized the serial research progress about the solvated electrons in the complex media by our group, including the structures, states, properties, time-evolution dynamics of their character parameters in the complicated media, a series of chemical reactions and physical process associated with solvated electrons, and functionality of solvated electron systems, discussed their characteristics and regularities, and also presented the outlook for the further development of the solvated electrons.

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“…In addition, plasma formation implies a large contribution of vibrationally excited and ionized species to the overall mechanism of sonochemical reactions. The formation of ionized species has been observed during single-bubble collapse in H 2 SO 4 using sonoluminescence spectroscopy. , More recently, it was reported that solvated electrons that escaped from a single collapsing bubble enabled the initiation of sonochemiluminescence of Ce 3+ and Tb 3+ ions in aqueous solutions. , However, observations of specific plasma chemical effects in sonochemistry are still scarce.…”

mentioning

confidence: 99%

“…8,9 More recently, it was reported that solvated electrons that escaped from a single collapsing bubble enabled the initiation of sonochemiluminescence of Ce 3+ and Tb 3+ ions in aqueous solutions. 10,11 However, observations of specific plasma chemical effects in sonochemistry are still scarce.…”

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confidence: 99%

Simultaneous H/D and ¹³C/¹²C Anomalous Kinetic Isotope Effects during the Sonolysis of Water in the Presence of Carbon Monoxide

Nikitenko

Chave

Virot

et al. 2021

J. Phys. Chem. Lett.

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Splitting of water molecules driven by ultrasound plays a central role in sonochemistry. While studies of sonoluminescence revealed the formation of a plasma inside the cavitation bubble, much less is known about the contribution of plasma chemical processes to the sonochemical mechanisms. Herein, we report for the first time sonochemical processes in water saturated with pure CO. The presence of CO causes a large increase in the H/D kinetic isotope effect (KIE) to αH = 14.6 ± 1.8 in a 10% H2O/D2O mixture under 20 kHz ultrasound. The anomalous H/D KIE is attributed to electron quantum tunneling in the plasma produced by cavitation. In addition, CO2 formed simultaneously with hydrogen during the sonochemical process is enriched with the 13C isotope, which indicates a V–V pumping mechanism typical for non-equilibrium plasma. Both observed KIEs unambiguously point to the contribution of quantum effects in sonochemical mechanisms.

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New sonochemiluminescence involving solvated electron in Ce(III)/Ce(IV) solutions

Cited by 11 publications

References 25 publications

Simple Water-Assisted Synthesis of Ce-Doped Lead-Free Cesium Metal Halides for Visible-Blind UV Photodetectors

Simple Water-Assisted Synthesis of Ce-Doped Lead-Free Cesium Metal Halides for Visible-Blind UV Photodetectors

Solvated electrons in the complex media: a review

Simultaneous H/D and ¹³C/¹²C Anomalous Kinetic Isotope Effects during the Sonolysis of Water in the Presence of Carbon Monoxide

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New sonochemiluminescence involving solvated electron in Ce(III)/Ce(IV) solutions

Cited by 11 publications

References 25 publications

Simple Water-Assisted Synthesis of Ce-Doped Lead-Free Cesium Metal Halides for Visible-Blind UV Photodetectors

Simple Water-Assisted Synthesis of Ce-Doped Lead-Free Cesium Metal Halides for Visible-Blind UV Photodetectors

Solvated electrons in the complex media: a review

Simultaneous H/D and 13C/12C Anomalous Kinetic Isotope Effects during the Sonolysis of Water in the Presence of Carbon Monoxide

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Simultaneous H/D and ¹³C/¹²C Anomalous Kinetic Isotope Effects during the Sonolysis of Water in the Presence of Carbon Monoxide