Solid State Sciences最新文献

{"title":"Pressure-temperature stability diagram of MgB2 – Consequences for sintering of dense MgB2 ceramics","authors":"Clotilde Lechevalier-Boissel ,&nbsp;Fabian Delorme ,&nbsp;Eugenie Cellier ,&nbsp;Julie Rossit ,&nbsp;Florence Moitrier ,&nbsp;Yiteng Xing ,&nbsp;Jacques Noudem ,&nbsp;Sebastien Lemonnier","doi":"10.1016/j.solidstatesciences.2025.107879","DOIUrl":"10.1016/j.solidstatesciences.2025.107879","url":null,"abstract":"<div><div>The MgB₂ compound has been largely studied due to its high superconducting properties. Such compound is well known to be difficult to densify. Utilization of Spark Plasma Sintering (SPS) to achieve high density ceramics has been proposed by many authors. However, the phase analysis of the samples from these papers systematically presents secondary phases such as MgB₄, MgB₇ or MgO. Thermodynamic studies seem to indicate that high pressures should increase the temperature stability domain of MgB₂. Therefore, in order to achieve high density pure MgB₂ ceramics, spark plasma sintering at low temperatures and high pressures has been investigated. Experiments demonstrated that increasing the pressure can reduce and even eliminate the presence of MgB₄. However, they also show that increasing the dwell time to achieve higher density leads to the reappearance of the MgB₄ compound. Therefore, high pressures rather reduce the kinetic of MgB₂ decomposition than increasing the MgB₂ temperature stability domain. The highest density achieved, without any composition change compared to the precursor powder, is 95 % relative density for a ceramic sintered at 700 °C under 1000 MPa during a dwell time of 2 h. These promising results make it possible to consider the investigation of the superconducting properties on a pure MgB₂ ceramic and to determine the influence of the MgB₄ phase on these properties.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"163 ","pages":"Article 107879"},"PeriodicalIF":3.4,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143561741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sustainable microwave-assisted crafting of CoZrO3@Graphene nanoplatelets nanocomposites for advanced asymmetric supercapacitors","authors":"J. John Benitto,&nbsp;J. Judith Vijaya","doi":"10.1016/j.solidstatesciences.2025.107881","DOIUrl":"10.1016/j.solidstatesciences.2025.107881","url":null,"abstract":"<div><div>In response to the growing energy crisis driven by rapid urbanization and population growth, the research investigates the development of high-performance supercapacitor electrode materials. Specifically, CoZrO₃ and its composite with graphene nanoplatelets (GNP) were synthesized using a microwave-assisted combustion method. Structural and morphological characteristics were confirmed by X-ray Diffraction (XRD), Fourier Transform Raman, UV–vis diffuse reflectance spectroscopy (UV-DRS), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and N₂ adsorption/desorption studies. The prepared CoZrO₃@GNP nanocomposites exhibited exemplary electrochemical performance by achieving a maximum specific capacitance of 1003 F g⁻¹ at a current density of 2 A g⁻¹. An asymmetric supercapacitor device fabricated with this nanocomposite demonstrated a specific capacitance of 129.05 F g⁻¹ at 2 A g⁻¹, maintaining 89 % of its initial capacitance after 2000 cycles and delivering an energy density of 165.18 W h kg⁻¹ and maximum power density of 9.14 W kg⁻¹. The significant improvements are attributed to the synergistic effects of the GNP integration, highlighting the potential of CoZrO₃@GNP as a viable electrode material for advanced energy storage applications.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"162 ","pages":"Article 107881"},"PeriodicalIF":3.4,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143512437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of energy transfer mechanism in Gd3+ to Sm3+ and Eu3+ in borate glasses for the application of solid-state lighting devices","authors":"F. Zaman ,&nbsp;J. Abbas ,&nbsp;I. Ullah ,&nbsp;Arshad Khan ,&nbsp;N. Us Saqib ,&nbsp;S. Mukamil ,&nbsp;Hasan B. Albargi ,&nbsp;G. Rooh ,&nbsp;N. Srisittipokakun ,&nbsp;W. Rachniyom ,&nbsp;N. Intachai ,&nbsp;S. Kothan ,&nbsp;J. Kaewkhao","doi":"10.1016/j.solidstatesciences.2025.107878","DOIUrl":"10.1016/j.solidstatesciences.2025.107878","url":null,"abstract":"<div><div>This investigation provides insightful information on the spectral characteristics and energy transfer mechanisms from Gd³⁺ to Eu³⁺ and Sm³⁺ ions in borate glasses. The main purpose of this study was to enhance the luminescent properties of the developed glasses, making them suitable candidates for solid-state lighting (SSL) applications. The study demonstrated efficient energy transfer mechanisms, contributing to superior emission characteristics. Borate glasses tri-doped with varying amounts of Sm³⁺, Eu³⁺, and Gd³⁺ were synthesized using the high-temperature melt-annealing technique. Spectroscopic techniques such as transmittance, photoluminescence (PL), and X-ray excited luminescence (XEL) were employed to investigate the electronic transitions and luminescence properties of the synthesized glasses. The optical bandgap and J-O intensity parameters were computed from the optical absorbance spectrum. Radiative characteristics were identified from the photoluminescence emission spectra. The chromaticity coordinates confirmed orange-red light emission, indicating the energy transfer phenomena from Gd³⁺ to Sm³⁺ and Eu³⁺ in the host glasses. The results confirmed that the energy transfer significantly enhanced the luminescence properties, particularly in the visible region, making the glass a promising candidate for solid-state lighting applications, including display technologies, phosphors, lighting equipment, and optoelectronics. Further investigations will be conducted in future studies to fully explore and maximize the application potential of these glass materials.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"163 ","pages":"Article 107878"},"PeriodicalIF":3.4,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143637201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of ultrasonic energy and temperature on the structural, morphological, and magnetic properties of Fe3O4 nanoparticles","authors":"M.C. Vega Sosa ,&nbsp;I.M. Saavedra Gaona ,&nbsp;C.A. Parra Vargas ,&nbsp;R.J. Rincón ,&nbsp;D. Llamosa Pérez","doi":"10.1016/j.solidstatesciences.2025.107880","DOIUrl":"10.1016/j.solidstatesciences.2025.107880","url":null,"abstract":"<div><div>Iron oxide nanoparticles currently have multiple technological, medical, and environmental applications, making an efficient and sustainable production process necessary. This work systematically investigates the ultrasonic energy and reaction temperature in synthesizing Fe₃O₄ nanoparticles on their structural, morphological, and magnetic properties. The properties were characterized using X-ray diffraction (XRD), Fourier transform (FTIR), X-ray photoemission spectroscopy (XPS), transmission electron microscopy (TEM), selected area electron diffraction (SAED), and vibrating sample magnetometry (VSM). The results show that the synthesis process parameters are crucial in forming Fe₃O₄ nanoparticles with superparamagnetic properties. It was found that higher temperatures or ultrasonic energy led to an increase in grain size, ranging from 8 to 20 nm. Consequently, the variation of these parameters significantly impacts the magnetic properties of the nanoparticles. For instance, small coercive fields (0.51 Oe) were observed in samples with a grain size of 8.40 (2) nm. These relevant findings could play a key role in developing future industrial applications.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"162 ","pages":"Article 107880"},"PeriodicalIF":3.4,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optical properties and application of blue and purple inorganic pigment powders based on cobalt/nickel doped Sr2MgSi2O7","authors":"Qiuyu Cheng ,&nbsp;Zhiwei Wang ,&nbsp;Ayahisa Okawa ,&nbsp;Takuya Hasegawa ,&nbsp;Tohru Sekino ,&nbsp;Shu Yin","doi":"10.1016/j.solidstatesciences.2025.107869","DOIUrl":"10.1016/j.solidstatesciences.2025.107869","url":null,"abstract":"<div><div>In the present work, solid solutions of Sr₂Mg_1-<em>x</em>Co_<em>x</em>Si₂O₇ (0.2 ≤ <em>x</em> ≤ 1) with blue coloration and Sr₂Mg_1-<em>x</em>Ni_<em>x</em>Si₂O₇ (0.1 ≤ <em>x</em> ≤ 0.5) with purple coloration were successfully synthesized via solid state reactions. Rietveld refinement analysis confirmed the successful substitution of Mg²⁺ by Co²⁺/Ni²⁺, as indicated by corresponding changes in cell volumes. These solid solutions display tunable blue and purple hues, influenced by the doping levels of Co²⁺/Ni²⁺. Compared to commercial cobalt blue (CoAl₂O₄), the synthesized blue oxides significantly lowered Co²⁺ levels while achieving the desired color properties. The rarity of purple coloration in nickel compounds makes this topic of particular interest. UV–Vis–NIR spectra revealed that the observed blue and purple colors arise from the <span><math><mrow><mmultiscripts><msub><mi>A</mi><mn>2</mn></msub><mprescripts></mprescripts><none></none><mn>4</mn></mmultiscripts><mrow><mo>(</mo><mmultiscripts><mi>F</mi><mprescripts></mprescripts><none></none><mn>4</mn></mmultiscripts><mo>)</mo></mrow><mo>→</mo><mmultiscripts><msub><mi>T</mi><mn>1</mn></msub><mprescripts></mprescripts><none></none><mn>4</mn></mmultiscripts><mrow><mo>(</mo><mmultiscripts><mi>P</mi><mprescripts></mprescripts><none></none><mn>4</mn></mmultiscripts><mo>)</mo></mrow></mrow></math></span> and <span><math><mrow><mmultiscripts><msub><mi>T</mi><mn>1</mn></msub><mprescripts></mprescripts><none></none><mn>3</mn></mmultiscripts><mrow><mo>(</mo><mmultiscripts><mi>F</mi><mprescripts></mprescripts><none></none><mn>3</mn></mmultiscripts><mo>)</mo></mrow><mo>→</mo><mmultiscripts><msub><mi>T</mi><mn>1</mn></msub><mprescripts></mprescripts><none></none><mn>3</mn></mmultiscripts><mrow><mo>(</mo><mmultiscripts><mi>P</mi><mprescripts></mprescripts><none></none><mn>3</mn></mmultiscripts><mo>)</mo></mrow></mrow></math></span> transitions of Co²⁺ and Ni²⁺ ions at tetrahedral sites, respectively. Furthermore, the thermal stability of the pigments was evaluated. To assess their compatibility with the polymer, 2 wt% of the as-prepared pigments were incorporated into poly(methyl methacrylate) (PMMA) to fabricate blue and purple PMMA composites, and their color properties were subsequently characterized.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"162 ","pages":"Article 107869"},"PeriodicalIF":3.4,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143479209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"FeS2-doped MoS2 nanoflower with the dominant 1T-MoS2 phase for enhanced peroxidase activity","authors":"Jianjiao Xin ,&nbsp;Yan Jiang ,&nbsp;Kun Song ,&nbsp;Nan Zhao ,&nbsp;Zhuanfang Zhang ,&nbsp;Qiushi Li","doi":"10.1016/j.solidstatesciences.2025.107867","DOIUrl":"10.1016/j.solidstatesciences.2025.107867","url":null,"abstract":"<div><div>Nanozymes with peroxidase activity have lower catalytic activity compared to natural enzymes. Therefore, it is of great significance to develop and design artificial enzymes with high catalytic activity. FeS₂-doped MoS₂ (<strong>FeS</strong>_{<strong>2</strong>}<strong>-MoS</strong>_{<strong>2</strong>}) nanoflower is synthesized via a hydrothermal method, using Anderson-type polyoxometalates (FeMo₆) as precursors. The X-ray photoelectron spectroscopy (XPS) and Raman spectrum of <strong>FeS</strong>_{<strong>2</strong>}<strong>-MoS</strong>_{<strong>2</strong>} confirm the presence of the 1T-MoS₂ phase. <strong>FeS</strong>_{<strong>2</strong>}<strong>-MoS</strong>_{<strong>2</strong>} with different 1T/2H-MoS₂ phase ratios are synthesized by controlling the reaction time. As a nanozyme, the obtained <strong>FeS</strong>_{<strong>2</strong>}<strong>-MoS</strong>_{<strong>2</strong>} can promote the oxidation of 3,3′,5,5′-tetramethylbenzidine (TMB) to oxTMB, showing peroxidase activity. <strong>FeS</strong>_{<strong>2</strong>}<strong>-MoS</strong>_{<strong>2</strong>} at a reaction time of 12 h exhibits higher peroxidase activity compared to samples prepared at other reaction times. The catalytic activity of <strong>FeS</strong>_{<strong>2</strong>}<strong>-MoS</strong>_{<strong>2</strong>} is 3 times that of MoS₂. The K_m value for H₂O₂ was 110 times that of horseradish peroxidase (HRP), indicating that the <strong>FeS</strong>_{<strong>2</strong>}<strong>-MoS</strong>_{<strong>2</strong>} had a better affinity for H₂O₂. The excellent catalytic activity may be due to the synergistic effect of bimetal, larger specific surface area, the high content of 1T-MoS₂ (77.52 %) and defect. As far as we know, the <strong>FeS</strong>_{<strong>2</strong>}<strong>-MoS</strong>_{<strong>2</strong>} nanoflower exhibits an exceptionally low detection limit of 0.52 μM for the colorimetric sensing of H₂O₂. This research presents a novel approach for creating high-performing nanozyme catalysts.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"162 ","pages":"Article 107867"},"PeriodicalIF":3.4,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143487751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"K4CuO2Cl2: A new alkali metal copper oxyhalide via aqueous solution processes","authors":"Li Zhang ,&nbsp;Junliang Sun ,&nbsp;Xianji Qiao","doi":"10.1016/j.solidstatesciences.2025.107868","DOIUrl":"10.1016/j.solidstatesciences.2025.107868","url":null,"abstract":"<div><div>The study of mixed-anion compounds, aimed at combining the advantages of different anions, has been extensively studied. Metal oxyhalides, with a view to combining the benefits of oxides and halides, play a crucial role in numerous advanced scientific and technological fields. Here we present a novel K₄CuO₂Cl₂ compound whose structure was studied via single-crystal X-ray diffraction. The synthesis of the K₄CuO₂Cl₂ compound employs a low-temperature aqueous solution method, in contrast to the high-temperature synthesis of K₄Cu₄OCl₁₀. The crystal structure of K₄CuO₂Cl₂ crystallizes in space group <em>P</em>4₂/<em>mnm</em> with tetragonal symmetry. Moreover, the K atom exhibits a tetrahedral coordination whilst Cu atom have a quadrilateral plane coordination in K₄CuO₂Cl₂, in contrast to the exclusively tetrahedral coordination found in K₄Cu₄OCl₁₀. This unique structural feature is expected to impart distinctive magnetic properties.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"162 ","pages":"Article 107868"},"PeriodicalIF":3.4,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143487750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnetic transition in MoO3: Influence of Mo5+/Mo6+ ratios on paramagnetic to diamagnetic behavior","authors":"Caique D.A. Lima ,&nbsp;Thais C.V. de Carvalho ,&nbsp;Cesar D. Mendoza ,&nbsp;Marcelo E.H. Maia da Costa ,&nbsp;Gardênia de S. Pinheiro ,&nbsp;Cleânio Luz-Lima ,&nbsp;Bruno G. Silva ,&nbsp;Rubem L. Sommer ,&nbsp;Jefferson F.D. F. Araujo","doi":"10.1016/j.solidstatesciences.2025.107866","DOIUrl":"10.1016/j.solidstatesciences.2025.107866","url":null,"abstract":"<div><div>This study examines the transition from paramagnetic to diamagnetic response in MoO₃, a phenomenon previously documented in the literature where the magnetic response of MoO₃ varies with the applied field, changing from paramagnetic at low fields to diamagnetic at high fields. MoO₃ samples were synthesized with controlled Mo⁶⁺/Mo⁵⁺ ratios while maintaining high crystallinity to elucidate this phenomenon. The samples were prepared in a chemical vapor deposition (CVD) furnace under an oxygen environment at two different temperatures, 550 and 650 °C, and two annealing times, 4 and 8 h. The resulting samples were subjected to characterization using powder X-ray diffraction (XRD), Raman spectroscopy, Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and vibrating sample magnetometry (VSM). The XRD results demonstrated the formation of highly crystalline MoO₃ in all samples, which is confirmed by Raman and FTIR. The XPS results demonstrate the concentration of Mo⁵⁺ and Mo⁶⁺ present in each sample. The results of the VSM experiments demonstrated that the observed change in the magnetic response of MoO₃ is due to the intensity of the material's response being comparable to that of the sample holder's response. Moreover, vibrating sample magnetometry and X-ray photoelectron spectroscopy analysis revealed that MoO₃ can exhibit both paramagnetic and diamagnetic behavior, depending on the quantity of Mo⁵⁺ present in the sample.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"162 ","pages":"Article 107866"},"PeriodicalIF":3.4,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143464940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Catalytic characteristics of NASICON-type phosphates with rare earth elements in ethanol conversion","authors":"Elena A. Asabina ,&nbsp;Anna I. Zhukova ,&nbsp;Vladislav A. Sedov ,&nbsp;Vladimir I. Pet'kov ,&nbsp;Diana A. Osaulenko ,&nbsp;Ekaterina B. Markova ,&nbsp;Diana G. Fukina ,&nbsp;Vitalii A. Koshkin","doi":"10.1016/j.solidstatesciences.2025.107865","DOIUrl":"10.1016/j.solidstatesciences.2025.107865","url":null,"abstract":"<div><div>The study is dedicated to the investigation of the catalytic properties of <span><math><mrow><msubsup><mi>M</mi><mn>0.33</mn><mrow><mn>3</mn><mo>+</mo></mrow></msubsup></mrow></math></span> Ti₂(PO₄)₃ (M − La, Sm, Dy) phosphates in ethanol conversion reactions. The powder samples of the NASICON-type phosphates were synthesized by the Pechini technique. Their phase purity and structure characterization were performed using XRD, IR spectroscopy, SEM, BET and BJH methods. Structural data indicated that the transition from La to Dy was accompanied by a decrease in M − O bond lengths, which is compensated by longer neighboring Ti–O bonds, ultimately leading to greater distortion of the surrounding octahedra. The catalytic activity of M_0.33Ti₂(PO₄)₃ (M − La, Sm, Dy) phosphates has been studied in ethanol reforming reactions in the temperature range of 240–400 °C. The regularities of changes in the catalytic properties in the La→Sm→Dy series have been traced. The selectivity of ethanol conversion was found to depend on the phosphate composition. The best alcohol conversion was achieved on Dy-phosphate at 400 °C with an ethylene selectivity of 66 %.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"162 ","pages":"Article 107865"},"PeriodicalIF":3.4,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143445392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and pressure-induced structural phase transition of energetic molecular perovskite DAI-1","authors":"Tingting Yan,&nbsp;Han Li,&nbsp;Dongyang Xi,&nbsp;Linan Liu,&nbsp;Dinghan Jin,&nbsp;Lei Sun","doi":"10.1016/j.solidstatesciences.2025.107864","DOIUrl":"10.1016/j.solidstatesciences.2025.107864","url":null,"abstract":"<div><div>We synthesized the energetic molecular perovskite DAI-1 (C₄₈H₁₁₂I₂₄N₁₆Na₈O₉₆) and investigated its behavior under high pressure using high-pressure Raman spectroscopy. DAI-1 exhibits an ABX₃ cubic perovskite structure, with significant changes in its Raman spectrum occurring between 4.3 and 7.1 GPa, signaling a phase transition. Releasing the pressure after applying it up to 12.3 GPa showed that the Raman spectrum did not return to its original state, indicating an irreversible phase transition. Furthermore, we conducted simulations to analyze the trend of changes in the crystal structure under pressure. This study serves as a reference for in-depth research on the high-pressure behavior of DAI-1 and other related substances.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"162 ","pages":"Article 107864"},"PeriodicalIF":3.4,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143429086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}