A morphology-dependent lattice stability investigation in ZnS nanostructures by high-pressure XAFS studies

Dong, Qing; Li, Shujia; Liu, Ran; Liu, Bo; Li, Quanjun; Kim, Jae-Yong; Liu, Bingbing

doi:10.1039/d2tc02043b

Cited by 6 publications

(4 citation statements)

References 58 publications

(74 reference statements)

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“…The normalized lattice parameters a/a 0 and c/c 0 and the cell volume of the WZ structure decrease with increasing pressure and exhibit an anisotropic compression behavior, accompanied with the shortening of the Zn−S (or Mn−S) bond distance until the phase transition occurs (Figure S3). 57,58 The observed results indicate that the Mn 2+ and Eu 3+ dopants have negligible influence on the structural stability and lattice compressibility of the host structure. However, the shrinkage of the unit cell volume and lattice parameters a and c for the WZ structure with increasing pressure implies the shortening of the bond distances between the anions and cations and enhanced interactions between the doped luminescent ions and host lattice.…”

Section: Characterization Of Synthesized Mn and Eumentioning

confidence: 83%

Pressure- and Rate-Dependent Mechanoluminescence with Maximized Efficiency and Tunable Wavelength in ZnS: Mn²⁺, Eu³⁺

Wang

Chen

et al. 2023

ACS Appl. Mater. Interfaces

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Mechanoluminescence (ML) has received widespread attention because of potential application in stress sensors and imaging. However, pursuing highly efficient ML remains a challenge due to multifactorial limitations such as pressure and loading rate. Here, we systematically investigate pressure-and ratedependent ML in Mn 2+ and Eu 3+ co-doped ZnS in a gigapascal pressure range by using a high-pressure dynamic diamond anvil cell and microsecond time-resolved fluorescent methods and demonstrate the giant tunability in both ML efficiency and wavelength. Compressed from ambient pressure to 11 GPa at different compression rates, ZnS: Mn 2+ , Eu 3+ exhibits a volcano shape in ML emission efficiency with an optimum at ∼3.5 GPa and ∼211.1 GPa/s, at least 1000-fold higher than that measured in the MPa range. The pressure-dependent ML is accompanied with a tunable yellow-to-red emission color change. A combination of high-pressure X-ray diffraction and photoluminescence measurements reveals that the pressure-and ratedependent ML behavior derives from pressure-induced strengthening of the crystal piezoelectric field and enhanced interaction between the host lattice and doped ions with a significant change of the energy level of the Mn ion. Significantly, the highly efficient ML of ZnS: Mn 2+ , Eu 3+ at the GPa level is reproducible under a compression-decompression process and can be manipulated on a micron scale, implying great potential in mechanical-optical energy conversion and application in dynamic pressure imaging, stress sensors, and multicolor displays.

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Section: Characterization Of Synthesized Mn and Eumentioning

confidence: 83%

Pressure- and Rate-Dependent Mechanoluminescence with Maximized Efficiency and Tunable Wavelength in ZnS: Mn²⁺, Eu³⁺

Wang

Chen

et al. 2023

ACS Appl. Mater. Interfaces

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“…The other type of inter‐lath carbide is a strip‐shaped M 7 C 3 carbide with a hexagonal close‐packed (HCP) structure. [ 25 ] M 7 C 3 is a Cr‐rich carbide. Notably, the strip‐shaped M 7 C 3 carbide in HWD700 steel has a width of 12 ± 3 nm.…”

Section: Resultsmentioning

confidence: 99%

Microstructure Stabilities of Newly Developed Hot‐Working Die Steel and H13 Steel at Elevated Temperature

Zhang

Cao

Chen

et al. 2023

steel research int.

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Hot-working die steels have an important role in the development of the industry and society, and they are widely used in industrial manufacturing due to their good mechanical properties, wear resistance and thermal resistance. [1][2][3][4] With the rapid increase in industrial and manufacturing requirements, dies need to operate under severe conditions of high temperature and pressures. The peak temperature at the surface of dies can reach even 700 °C, and exceed the tempering temperature. This inevitably leads to an evolution of the microstructure and degradation of mechanical properties, such as the hardness, strength, and thermal fatigue properties, strongly related to the service life of dies. [4,5] Therefore, the microstructure stability of hot-working die steels is of significance.The martensite lath structure is in a metastable state with a low thermal stability. The strength and hardness of the steel rapidly decrease with the recovery and disappearance of the lath structures in a martensitic steel. [6][7][8] Alloying with high levels of alloying elements is usually regarded as an effective approach to improve the thermal stability of a metallic material, but it is not a universally applicable method and is not conducive to some important properties of steels. For example, Cr is an important alloying element in a heat-resistant steel, and 9-12% Cr is usually added in the heat-resistant steel to form M 23 C 6 carbides always distributed along lath boundaries and grain boundaries to hinder their migration and recrystallization during creep. [9,10] However, the M 23 C 6 carbide is not conducive to the thermal fatigue performance and thermal stability of hot-working die steels owing to its fast coarsening. [5,11] The growth rate of M 7 C 3 in low-Cr alloys is slower than that of M 23 C 6 , which can be used as a type of precipitation pinning the microstructure interface. [12,13] Owing to the excellent thermal stability, the MC carbide can effectively hinder the recovery and recrystallization of the microstructures at temperatures lower than 600 °C. [14] Moreover, at a temperature below 0.5 T m , the deformation mechanism of steel materials is still the slip of dislocations. The stable and fine MC carbide can provide an excellent strengthening effect for the matrix under high-temperature conditions. [15,16] Therefore, the typical microstructures of hot-working die steels contain carbide forming elements such as Cr, Mo, and V to form the fine dispersed MC or M 2 C nano-carbides. [17] However, the microstructures of the present commercial hot-working die steels still becomes unstable when the temperature is increased to 600-650 °C. [6,11] In a previous study, a Cr-Mo-W-V HWD700 steel was developed, which exhibits a high strength as well as excellent fatigue performance at temperatures up to 700 °C strengthened by MC (M = V, Mo, W) nano-carbides. [18][19][20] However, the microstructure stability of the HWD700 steel at an elevated temperature has not been extensively investigated. In this study, the

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“…For example, Liu et al observed that Wurtzite (WZ)-structured ZnS nanorods (NRs) transformed to the rock salt (RS) structure at 19–20 GPa without going through a ZB structure. This is in contrast to the WZ → ZB → RS phase transition observed in bulk ZnS and spherical ZnS NPs . The same group also reported that GaAs nanowires (NWs) (40 nm in diameter) show larger bulk moduli and enhanced ZB to orthorhombic (OR) phase transition pressure compared with those of the bulk material.…”

Section: Pressure-induced Inorganic Np Atomic Structure Phase Transitionmentioning

confidence: 88%

“…This is in contrast to the WZ → ZB → RS phase transition observed in bulk ZnS and spherical ZnS NPs. 39 The same group also reported that GaAs nanowires (NWs) (40 nm in diameter) show larger bulk moduli and enhanced ZB to orthorhombic (OR) phase transition pressure compared with those of the bulk material. The phase transition pressure of 20 GPa is close to that reported for GaAs NWs with diameters from 80 to 150 nm.…”

Section: Semiconductor Npsmentioning

confidence: 98%

Theoretical and Experimental Advances in High-Pressure Behaviors of Nanoparticles

Meng,

Vu,

Criscenti

et al. 2023

Chem. Rev.

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Using compressive mechanical forces, such as pressure, to induce crystallographic phase transitions and mesostructural changes while modulating material properties in nanoparticles (NPs) is a unique way to discover new phase behaviors, create novel nanostructures, and study emerging properties that are difficult to achieve under conventional conditions. In recent decades, NPs of a plethora of chemical compositions, sizes, shapes, surface ligands, and self-assembled mesostructures have been studied under pressure by in-situ scattering and/or spectroscopy techniques. As a result, the fundamental knowledge of pressure–structure–property relationships has been significantly improved, leading to a better understanding of the design guidelines for nanomaterial synthesis. In the present review, we discuss experimental progress in NP high-pressure research conducted primarily over roughly the past four years on semiconductor NPs, metal and metal oxide NPs, and perovskite NPs. We focus on the pressure-induced behaviors of NPs at both the atomic- and mesoscales, inorganic NP property changes upon compression, and the structural and property transitions of perovskite NPs under pressure. We further discuss in depth progress on molecular modeling, including simulations of ligand behavior, phase-change chalcogenides, layered transition metal dichalcogenides, boron nitride, and inorganic and hybrid organic–inorganic perovskites NPs. These models now provide both mechanistic explanations of experimental observations and predictive guidelines for future experimental design. We conclude with a summary and our insights on future directions for exploration of nanomaterial phase transition, coupling, growth, and nanoelectronic and photonic properties.

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A morphology-dependent lattice stability investigation in ZnS nanostructures by high-pressure XAFS studies

Abstract: The morphology-dependent behavior of nanomaterials under high pressure has always been a research hotspot due to its great importance in materials science and physical science fields. Here, we performed in...

Cited by 6 publications

References 58 publications

Pressure- and Rate-Dependent Mechanoluminescence with Maximized Efficiency and Tunable Wavelength in ZnS: Mn²⁺, Eu³⁺

Pressure- and Rate-Dependent Mechanoluminescence with Maximized Efficiency and Tunable Wavelength in ZnS: Mn²⁺, Eu³⁺

Microstructure Stabilities of Newly Developed Hot‐Working Die Steel and H13 Steel at Elevated Temperature

Theoretical and Experimental Advances in High-Pressure Behaviors of Nanoparticles

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A morphology-dependent lattice stability investigation in ZnS nanostructures by high-pressure XAFS studies

Abstract: The morphology-dependent behavior of nanomaterials under high pressure has always been a research hotspot due to its great importance in materials science and physical science fields. Here, we performed in...

Cited by 6 publications

References 58 publications

Pressure- and Rate-Dependent Mechanoluminescence with Maximized Efficiency and Tunable Wavelength in ZnS: Mn2+, Eu3+

Pressure- and Rate-Dependent Mechanoluminescence with Maximized Efficiency and Tunable Wavelength in ZnS: Mn2+, Eu3+

Microstructure Stabilities of Newly Developed Hot‐Working Die Steel and H13 Steel at Elevated Temperature

Theoretical and Experimental Advances in High-Pressure Behaviors of Nanoparticles

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Product

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Pressure- and Rate-Dependent Mechanoluminescence with Maximized Efficiency and Tunable Wavelength in ZnS: Mn²⁺, Eu³⁺

Pressure- and Rate-Dependent Mechanoluminescence with Maximized Efficiency and Tunable Wavelength in ZnS: Mn²⁺, Eu³⁺