Materials Research Bulletin最新文献

{"title":"Carbon dots-grafted LaSrAl3O7:Sm3+ nanocomposites for AI-assisted twin latent fingerprints recognition, poroscopic studies and high-performance lighting applications","authors":"S. Priyanka Chakradhar ,&nbsp;B.R. Radha Krushna ,&nbsp;S.C. Sharma ,&nbsp;B. Bommalingaiah ,&nbsp;Augustine George ,&nbsp;C. Kanmani Indra ,&nbsp;K. Thangamani ,&nbsp;S.S. Mohapatra ,&nbsp;K. Manjunatha ,&nbsp;Sheng Yun Wu ,&nbsp;H. Nagabhushana","doi":"10.1016/j.materresbull.2025.113588","DOIUrl":"10.1016/j.materresbull.2025.113588","url":null,"abstract":"<div><div>This study introduces a straightforward and eco-friendly method for synthesizing carbon dots (CDs) by utilizing extracts from onion and lemon juice with simple microwave assistance. These CDs were subsequently incorporated into LaSrAl₃O₇:xSm³⁺ (x = 0.5, 1, 3, 5, 7, 9 mol %) (LSAO:xSm³⁺) nanoparticles (NPs) to form CDs@LSAO:Sm³⁺ nanocomposites (NCs) through an ultrasonication process. DRS measurements indicated a bandgap variation from 4.502 eV for the undoped LSAO to 4.287 eV for LSAO doped with 9 mol % Sm³⁺. Photoluminescence (PL) studies revealed that the integration of CDs into the LSAO:5Sm³⁺ matrix led to an 82.39-fold enhancement in PL intensity, a phenomenon attributed to a Förster resonance energy transfer (FRET) mechanism. The CDs@LSAO:5Sm³⁺ NCs exhibited an impressive color purity of 99.8 % and an internal quantum efficiency (<em>I</em>_<em>QE</em>) of 87.49 %, highlighting their potential for high-performance lighting solutions. Temperature-dependent PL (TDPL) spectra, recorded over the range of 298–473 K, demonstrated excellent thermal stability by maintaining 94.3 % of the initial PL intensity at 423 K and exhibiting a broad activation energy of 0.31 eV. Optical thermometry studies further revealed a high relative sensitivity of 3.97 % K^-1 at 298 K, underscoring the promise of CDs@LSAO:5Sm³⁺ NCs for advanced thermal sensing applications. Moreover, these NCs were successfully applied in the fabrication of bright orange-red light-emitting diodes (LEDs) and cool w-LEDs, thereby emphasizing their utility in solid-state lighting. In addition, the NCs were employed for latent fingerprints (LFPs) detection, including twin fingerprints (FPs) analyses of male twins, male-female twins and female twins, as well as poroscopic studies of right and left thumb impressions from a female donor. The detection and comparison of LFPs were further enhanced by an artificial intelligence (AI)-enabled <em>MATLAB</em> algorithm that determined similarity scores between twin FPs and LFPs across various substrates for the same individual. Collectively, these findings highlight the multifunctional nature of CDs@LSAO:5Sm³⁺ NCs, establishing them as promising candidates for both optoelectronic applications and advanced forensic investigations.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"192 ","pages":"Article 113588"},"PeriodicalIF":5.3,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144240456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In-depth mechanism analysis for negative differential resistance coupled resistance switching behavior in multiple factors regulated MoOx/MoOy-stacked memristor","authors":"Jiajia Qin ,&nbsp;Bai Sun ,&nbsp;Shuangsuo Mao ,&nbsp;Mingnan Liu ,&nbsp;Zhaowei Rao ,&nbsp;Wei Lin ,&nbsp;Yulong Yang ,&nbsp;Yong Zhao","doi":"10.1016/j.materresbull.2025.113586","DOIUrl":"10.1016/j.materresbull.2025.113586","url":null,"abstract":"<div><div>It is well known that memristors have low-power parallel brain-like computing capabilities and fast data/information/image processing efficiency. It will have application prospects if devices with multiple physical characteristics can be developed, especially playing an important role in the next generation of artificial intelligence (AI). In this work, a double-layer stacked memristor with the structure of Ag/MoO_x/MoO_y/fluorine doped tin oxide (FTO) was synthesized by magnetron sputtering (MS). The memristor presents the evolution of resistance switching (RS) behavior and negative differential resistance (NDR) coupled RS (NRS) behavior by adjusting the operating voltage. It was also observed that RS behavior of the memristor was obviously enhanced with the increase of oxygen content, and even the Ag/MoO_x/MoO_y/FTO device still exhibit excellent RS behavior at high temperature. More importantly, the temperature coefficient of the Ag/MoO_x/MoO_y/FTO device in low resistance state (LRS) was calculated to demonstrate that the formation and fracture of Ag conductive filaments (CFs) have an important impact on the RS behavior of memristor. Therefore, this work not only provides theoretical proof for a deeper understanding of the physical mechanism of RS behavior, but also it expands the path for developing high-capacity memristor with high temperature resistance and multi-level storage.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"192 ","pages":"Article 113586"},"PeriodicalIF":5.3,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144204768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Direct synthesis of H2O2 over Pd-In/TiO2 and in situ activation toward tetracycline degradation","authors":"Jiaxi He ,&nbsp;Zhiwen Lv ,&nbsp;Min Su ,&nbsp;Yufan Pu ,&nbsp;Wenjia Song ,&nbsp;Jiacheng Gao ,&nbsp;Shaojun Yuan ,&nbsp;Yuan Wang ,&nbsp;Like Ouyang","doi":"10.1016/j.materresbull.2025.113584","DOIUrl":"10.1016/j.materresbull.2025.113584","url":null,"abstract":"<div><div>Hydrogen peroxide (H₂O₂) is widely used in wastewater treatment, but sustainable on-site production and efficient utilization remain key challenges. In this work, we developed a bimetallic Pd-In catalyst embedded on TiO₂. The alloying of Pd and In promotes the formation of monodisperse Pd sites, optimizes the Pd-PdO_x interface structure, facilitates non-dissociative O₂ activation and OOH generation, and enhances H₂O₂ synthesis efficiency. A couple process was developed involving the direct H₂O₂ synthesis and in situ activation for efficient degradation of tetracycline (TC). At an initial TC concentration of 50 mg/L and only 2 mg/L Fe(II), 95.5 % TC degradation was achieved within 1 h. Superoxide and hydroxyl radicals were identified as the primary reactive oxygen species by quenching experiment and EPR analysis. The degradation pathway of tetracycline was established and the QSAR prediction proved the reduced toxicity for degradation intermediates.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"192 ","pages":"Article 113584"},"PeriodicalIF":5.3,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144195431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Terahertz ultra-wideband metamaterial absorber based on superposition optimization","authors":"Yuqiang Zhang ,&nbsp;Xin-Hua Deng ,&nbsp;Jiaqi Geng ,&nbsp;Zhipeng Xiong ,&nbsp;Ping Hu","doi":"10.1016/j.materresbull.2025.113589","DOIUrl":"10.1016/j.materresbull.2025.113589","url":null,"abstract":"<div><div>This paper presents a novel absorber with multiple absorbers assembled into a single unit by patterned composite superposition and embedded stacking. The absorber proposed in this paper can realize high absorption of electromagnetic waves in the range of 1.96 THz-11.85 THz with a relative absorption bandwidth of 143.2 %. Functionally, these absorbers exhibit ultra-broadband absorption, polarization insensitivity, and dynamic tunability, and maintain broadband absorption at incident angles up to 60° Their structural design is notable for its simplicity, limited variety of materials, and compact size. This paper summarizes the ideas and experiences in optimization using the superposition principle and innovatively analyses and investigates the cause of peak attenuation in the case of superposition of multiple absorbers from the perspectives of equivalent circuits and impedance matching, which provides a more precise idea for subsequent researchers to design wave-absorbing materials, and has an essential inspirational value for the optimization research and development of wave-absorbing materials.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"192 ","pages":"Article 113589"},"PeriodicalIF":5.3,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144204769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficient grain boundary diffusion source for Nd-Fe-B magnets based on synergistic effect of terbium and dysprosium","authors":"Hanjie Pan ,&nbsp;Mingpeng Kou ,&nbsp;Xuhang Zhang ,&nbsp;Hongya Yu ,&nbsp;Jiayi He ,&nbsp;Zhongwu Liu","doi":"10.1016/j.materresbull.2025.113582","DOIUrl":"10.1016/j.materresbull.2025.113582","url":null,"abstract":"<div><div>Tb and Dy are two typical heavy earth elements (HREs) generally used in grain boundary diffusion (GBD) sources for Nd-Fe-B magnets. Tb exhibits more significant effect in anisotropy field enhancement than Dy but also has a distinctly higher material cost. In order to prepare the cost-effective diffusion source, the Tb_70-xDy_xCu₃₀ alloys with different Dy substitutions for Tb were employed as the diffusion alloys for sintered Nd-Fe-B magnets. The synergistic effect of these two HREs and the diffusion behavior are systematically studied. It is found that the binary Tb₇₀Cu₃₀ alloy diffusion enhanced the coercivity of the magnet from 1230 kA m⁻¹ to 1938 kA m⁻¹. Although 50 at. % Tb was replaced by Dy in the diffusion alloy of Tb₃₅Dy₃₅Cu₃₀ alloy, the coercivity of the magnet was still significantly enhanced to 1904 kA m⁻¹, comparable to that obtained by the binary Tb₇₀Cu₃₀ alloy diffusion. Microstructure characterizations demonstrated that the remarkable coercivity enhancement of Tb₃₅Dy₃₅Cu₃₀ diffused magnet was mainly attributed to the synergistic effect of Tb and Dy, in which the symbiotic Tb/Dy-rich shell effectively inhibits the nucleation of the reversed magnetic domain. The comparison of diffusion behavior indicated that Dy was rapidly consumed in the surface layer of the magnet, whereas Tb preferentially diffused into the interior of the magnet, improving the efficiency and cost-effectiveness of HRE elements.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"192 ","pages":"Article 113582"},"PeriodicalIF":5.3,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144212881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"K-doping g-C3N4 with ZnIn2S4 to construct Z-scheme heterojunction for photocatalytic hydrogen production and dye degradation","authors":"Zheyuan Cui ,&nbsp;Xuanyu Kuang ,&nbsp;Rensheng Lv ,&nbsp;Xuekun Jin ,&nbsp;Fengjuan Chen ,&nbsp;Yunping Kang ,&nbsp;Huiqin Zhang ,&nbsp;Haiming Duan ,&nbsp;Biaobing Cao","doi":"10.1016/j.materresbull.2025.113580","DOIUrl":"10.1016/j.materresbull.2025.113580","url":null,"abstract":"<div><div>Hydrogen production through semiconductor photocatalysis is a promising technology. However, the usage of photocatalysis is severely limited by the high recombination probability of photogenerated carriers and narrow light absorption range. Therefore, this study constructed K-g-C₃N₄/ZnIn₂S₄ Z-scheme photocatalysts via hydrothermal method, which were applied for efficiently hydrogen production to produce hydrogen and degrading dye wastewater under visible light. The photocatalytic results show that the hydrogen production rate of K-g-C₃N₄/ZnIn₂S₄ under simulated sunlight was 510.2 μmol·<em>g</em>⁻¹·h⁻¹, and the degradation efficiency of MO was 97.9 % in 60 min. It is due to the synergistic effect of K-doping and heterojunction, which can effectively broaden the light absorption ranges and reduce the recombination efficiency of photogenerated carriers. The photocatalytic mechanism was explored by free radical trapper experiments, VB-XPS, UV–vis DRS, and DFT calculations. This study introduces a novel approach to construct bifunctional photocatalysts based on ZnIn₂S₄.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"192 ","pages":"Article 113580"},"PeriodicalIF":5.3,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144204771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced luminescent and thermally stable in situ synthesis of Eu3+-doped CaO/Y2O3/ZnO nanocomposite for high pure red colour emitting and latent fingerprint applications","authors":"Manju Nain,&nbsp;Sangeeta Kadyan,&nbsp;Ashima Makhija,&nbsp;Anil Ohlan,&nbsp;Sajjan Dahiya,&nbsp;Rajesh Punia,&nbsp;Anup Singh Maan","doi":"10.1016/j.materresbull.2025.113572","DOIUrl":"10.1016/j.materresbull.2025.113572","url":null,"abstract":"<div><div>In this study, a series of Eu³⁺ doped CaO/Y_2(1-x)Eu_2xO₃/ZnO (x = 0.00, 0.01, 0.03, 0.05, 0.07, 0.10) novel ternary nanocomposites were successfully synthesized using the Pechini sol-gel method. The structural properties were characterized using X-ray diffraction (XRD), Rietveld refinement, and field emission scanning electron microscopy (FESEM). The resulting nanophosphors exhibited cubic structure for CaO, Y₂O₃, and hexagonal for ZnO, respectively. The band gap of the nanocomposites was approximately 3.30 eV and no significant change has been observed with Eu³⁺ ions doping. The nanocomposite CaO/Y_2(0.95)Eu_2(0.05)O₃/ZnO has been determined as an optimized concentration and demonstrated a marked enhancement in red emission compared to its component (Y_2(0.95)Eu_2(0.05)O₃). The synthesized nanocomposites also exhibited remarkable colorimetric and luminescence parameters, including CIE coordinates and correlated colour temperature (CCT). Further, the Modified Arrhenius-type Empirical Model (MAE Model) has been employed for assessing the thermal stability of prepared nanocomposites. These nanocomposites have been found thermally stable up to 433 K (160°C), indicating their potential for solid-state lighting such as light-emitting diodes (LEDs), white light-emitting diodes (w-LEDs), and imaging applications. Additionally, the optimized sample (CaO/Y_2(0.95)Eu_2(0.05)O₃/ZnO) was successfully employed for latent fingerprinting, accurately identifying features at all levels—1, 2, and 3.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"192 ","pages":"Article 113572"},"PeriodicalIF":5.3,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144231735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Designing of MoHo2O4/black phosphorus//AC on carbon paper electrode for battery-supercapacitor hybrid device and hydrogen evolution reaction","authors":"Muhammad Azhar Mumtaz ,&nbsp;A.M. Afzal ,&nbsp;Abhinav Kumar ,&nbsp;Areej S. Alqarni ,&nbsp;M.A. Diab ,&nbsp;Heba A. El-Sabban ,&nbsp;Rahul Raj Chaudhary ,&nbsp;Ankit D. Oza","doi":"10.1016/j.materresbull.2025.113585","DOIUrl":"10.1016/j.materresbull.2025.113585","url":null,"abstract":"<div><div>A supercapattery is an energy storage device (ESDs) that simultaneously functions as a battery and a supercapacitor. This great combination can help such a device achieve high Ed and Pd. In this research, we demonstrated the synthesis of a molybdenum holmium oxide (MoHo₂O₄) composite with Black Phosphorus (BP) using a hydrothermal technique. SEM, XPS, and XRD were utilized to investigate the synthesized material's structural morphology, surface area, porosity, and crystallinity. The electrochemical characterization was employed in three-electrode and two-electrode assemblies. The material demonstrates outstanding performance, showcasing its battery-grade characteristics with a Qs of 1278.4 C g^-1. A supercapattery device utilizing (MoHo₂O₄/BP//AC) as the cathode material has been fabricated to explore its performance, demonstrating a maximum Qs of 153.4 C g^-1. The asymmetric supercapattery device's construction demonstrates a E_d of 85.4 Wh kg^-1 and achieves a P_d of 1865 W/kg. Additionally, the supercapattery device demonstrated an impressive 94.2 % capacity retention following 10,000 continuous charge-discharge cycles. At lower scan rates, the diffusive contribution predominates. The duration of the electrolyte's charge interaction with the electrode material accounts for the differences in contribution. Besides, the MoHo₂O₄/BP nanocomposite electrode shows a small value of Tafel slope of 54 mV (dec)^-1 in HER. The outstanding capabilities of the MoHo₂O₄/BP composite in hybrid energy storage and hydrogen evolution reaction (HER) position it as a promising candidate for addressing future energy needs.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"192 ","pages":"Article 113585"},"PeriodicalIF":5.3,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144204770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electromagnetically gradient multilayer PDMS/SWCNT/NiZTO/MXene hybrid composite for optionally energy harvesting and green electromagnetic shielding","authors":"Prem Pal Singh,&nbsp;Gourab Hati,&nbsp;Sudhir Kumar,&nbsp;Debabrata Pradhan,&nbsp;Bhanu Bhusan Khatua","doi":"10.1016/j.materresbull.2025.113573","DOIUrl":"10.1016/j.materresbull.2025.113573","url":null,"abstract":"<div><div>A rapid surge in advanced wireless industrial and remote sensing systems, often constrained by limited power sources, has highlighted the critical need for simultaneous piezoelectric energy generators (PNGs) and electromagnetic interference (EMI) shielding for secure and self−sustained operations. Thus, this study presents a novel piezo active electromagnetically gradient asymmetrically layered (PEGL) material architecture based on polydimethylsiloxane (PDMS)/Ni–doped zinc tin oxide (NiZTO)//single–wall carbon nanotubes (SWCNTs) film//PDMS/MXene for piezoelectric energy harvesting and superior EMI shielding. The PDMS/NiZTO piezo layer demonstrates exceptional piezoelectric nano energy generation performance, significantly outperforming its PDMS/MXene counterpart layer. This piezo layer delivers an impressive piezoelectric output like 33.8 V of piezo–potential, 395.4 nA of piezo–current, 1.5 µW/cm² of power density, and 0.5 pC/N of vertical piezoelectric coefficient, marking a transformative leap in energy harvesting capabilities. The EMI shielding of the PEGL system exhibited filler loading tuned shielding performance of up to 60.3 dB.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"192 ","pages":"Article 113573"},"PeriodicalIF":5.3,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144195432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gas sensing performance of α-, α/β-, and β-Ga2O3 polymorphs","authors":"Nyepudzai C. Gatsi ,&nbsp;Murendeni I. Nemufulwi ,&nbsp;Gugu H. Mhlongo ,&nbsp;Nosipho Moloto ,&nbsp;Rudolph M. Erasmus ,&nbsp;Elizabeth Coetsee ,&nbsp;Hendrik C. Swart ,&nbsp;Odireleng M. Ntwaeaborwa","doi":"10.1016/j.materresbull.2025.113583","DOIUrl":"10.1016/j.materresbull.2025.113583","url":null,"abstract":"<div><div>This paper reports the detection of SO₂, NH₃, and CO gases using Ga₂O₃ polymorphs. The α-Ga₂O₃, α/β-Ga₂O₃, and β-Ga₂O₃ sensing materials were prepared using the hydrothermal method, followed by calcination at different temperatures ranging from 550 °C to 950 °C. The gas sensing properties were measured and analyzed based on the polymorphism-induced physicochemical properties of the sensing materials. Different Ga₂O₃ polymorphs showed distinct sensing properties, and factors contributing to this preferential gas detection behavior are discussed in detail. The proposed gas sensing mechanisms were discussed. Notably, the gas sensing performance of the α/β-Ga₂O₃-based sensor is reported here for the first time.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"192 ","pages":"Article 113583"},"PeriodicalIF":5.3,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144195433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}