Journal of Electronic Materials最新文献

{"title":"Mn-Pt and Mn-Pt-Based Alloys: Structural, Magnetic, and Mechanical Insights for Next-Generation Spintronic Devices","authors":"M. E. Baloyi","doi":"10.1007/s11664-026-13077-5","DOIUrl":"10.1007/s11664-026-13077-5","url":null,"abstract":"<div><p>This review presents a concise and critical evaluation of Mn-Pt-based alloys, focusing on their structural stability, magnetic behavior, and suitability for spintronic applications. The L1₀ phase of Mn-Pt is highlighted for its high Néel temperature (~975 K), strong magnetocrystalline anisotropy, and excellent mechanical robustness, establishing it as a leading antiferromagnetic material. A central contribution of this work is the systematic analysis of transition metal doping (Fe, Co, Ni, Pd, Cr), revealing its role in tuning magnetic moments, modifying phase stability, and enhancing functional properties. The review further identifies rare-earth doping as a promising yet underexplored strategy for significantly improving coercivity, anisotropy, and thermal stability through enhanced spin-orbit coupling. Key research gaps are outlined, including limited experimental validation, insufficient temperature-dependent studies, and lack of comprehensive spin transport analysis. By integrating theoretical and experimental insights, this work proposes future directions in alloy design, thin-film engineering, and advanced characterization for next-generation spintronic technologies.</p></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 10","pages":"8402 - 8415"},"PeriodicalIF":2.8,"publicationDate":"2026-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11664-026-13077-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148909431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrochemical and Thermal Investigation of Aerva lanata-Derived rGO-ZnO Nanocomposites with Tunable ZnO Loading","authors":"Shibi Krishnan,&nbsp;R. Harikrishnan,&nbsp;Pranav Prasad,&nbsp;Arun S. Prasad","doi":"10.1007/s11664-026-13093-5","DOIUrl":"10.1007/s11664-026-13093-5","url":null,"abstract":"<div><p>This study focused on the synthesis and characterization of reduced graphene oxide, zinc oxide, and their nanocomposites with varying loading concentrations (10 wt.%, 20 wt.%, and 30 wt.%) of zinc oxide nanoparticles, utilizing <i>Aerva lanata</i> (L.) extract as a natural reductant. The structural, morphological, and optical properties of the samples were examined using x-ray diffraction, Rietveld refinement analysis, Fourier transform infrared spectroscopy, Raman spectroscopy, high-resolution transmission electron microscopy, particle size distribution analysis, and ultraviolet–visible spectroscopy. Electrochemical characterization, including cyclic voltammetry, galvanostatic charge–discharge, and electrochemical impedance spectroscopy, revealed that the rGO-ZnO nanocomposite with 10 wt.% ZnO exhibited the most favourable charge storage behaviour. The optimized 10% rGO-ZnO nanocomposite delivered maximum specific capacitance of ~ 385 F g⁻¹ from CV measurements at 10 mV S⁻¹ and 370 F g⁻¹ from GCD measurements at 1 A g⁻¹, significantly outperforming pristine rGO (~ 150 F g⁻¹). This enhancement is attributed to optimal ZnO loading, improved interfacial charge transfer, and synergistic pseudocapacitive interactions between nanocrystalline ZnO and the conductive rGO framework. The optimized nanocomposite also demonstrated excellent cycling stability, retaining 91% of its initial capacitance after 1000 GCD cycles at 1 A g⁻¹. To further evaluate its functional suitability for wearable applications, the nanocomposites were also examined for antibacterial performance and thermal conductivity. The agar well diffusion assay against <i>Staphylococcus aureus</i> and <i>Pseudomonas aeruginosa</i> demonstrated enhanced antibacterial performance with increasing ZnO content. Furthermore, the 20 wt. % and 30 wt. % rGO-ZnO nanocomposites showed minimum inhibitory (62.5 µg mL⁻¹) and bactericidal (125 µg mL⁻¹) concentration toward antibacterial efficiency compared to the respective values of 125 µg mL⁻¹ and 250 µg mL⁻¹ for the 10 wt.% variant. Thermal conductivity measurements also confirmed superior performance for the nanocomposite with 10 wt.% ZnO loading (1.474 W m⁻¹ K⁻¹), owing to reduced phonon scattering and enhanced interfacial heat transport. The <i>A. lanata</i>-derived nanocomposite of reduced graphene oxide with 10 wt.% ZnO loading demonstrated a compelling combination of high electrochemical performance, structural stability, antibacterial activity, and enhanced thermal conductivity, thus establishing it as a promising candidate for high-performance, eco-friendly supercapacitor electrodes and multifunctional components in next-generation wearable energy devices.</p></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 10","pages":"8928 - 8949"},"PeriodicalIF":2.8,"publicationDate":"2026-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148909432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural, Paramagnetic, and Optical Properties of Sol–Gel-Derived Gd3+-Activated LaYZr2O7 Pyrochlore-Type Phosphors for UV Radiation Emission","authors":"Vijay Singh,&nbsp;Ji Bong Joo,&nbsp;Pankaj Kumar Tripathi,&nbsp;S. Watanabe,&nbsp;T. K. Gundu Rao","doi":"10.1007/s11664-026-13058-8","DOIUrl":"10.1007/s11664-026-13058-8","url":null,"abstract":"<div><p>A series of Gd³⁺-doped LaYZr₂O₇ pyrochlore phosphors was synthesized via the sol–gel method to investigate their structural, magnetic, and optical properties as a function of dopant concentration. X-ray diffraction (XRD) confirmed a stable single-phase cubic pyrochlore (<span>(Fdoverline{3}m)</span>) with nanoscale crystallites of approximately 15–16 nm. Scanning electron microscopy (SEM) revealed microscale plate-like agglomerates with pores formed during sintering, indicating uniform precursor nucleation and good sol–gel homogeneity. Photoluminescence studies revealed strong excitation in the range of 220–290 nm and intense, narrowband ultraviolet B (NB-UVB) emission at 314 nm, which increased monotonically up to 0.11 mol of Gd³⁺. There was no apparent decrease in steady-state emission intensity. The electron paramagnetic resonance (EPR) spectrum of the LaYZr₂O₇:Gd³⁺ phosphor displays lines at <i>g</i>_eff ~ 5.7, 4.2, 3.4 and 1.96. Crucially, EPR spectroscopy correlated this optical behavior directly with the host’s defect chemistry, revealing that Gd³⁺ ions occupy two distinct local environments. The luminescent output is dominated by a relatively abundant high-symmetry site, alongside a low-symmetry site associated with local crystal field distortions arising from antisite cation disorder and oxygen vacancies. The evident down-converted NB-UVB emission and defect-driven structural stability make this material highly promising for active luminescent coatings in medical phototherapy lamps and advanced solid-state photonic devices.</p></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 10","pages":"9050 - 9060"},"PeriodicalIF":2.8,"publicationDate":"2026-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148909430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Bilayer Liquid–Metal Interdigitated Capacitive Sensor for Omnidirectional Strain Decoupling in Wearable Motion Monitoring","authors":"Fan Lei,&nbsp;Yandong Yang,&nbsp;Jiayi Yang,&nbsp;Zheng Zhang","doi":"10.1007/s11664-026-13103-6","DOIUrl":"10.1007/s11664-026-13103-6","url":null,"abstract":"<div><p>Soft and stretchable strain sensors are important for human–machine interfaces, soft robotics, and electronic skins. However, most existing sensors cannot simultaneously resolve strain magnitude and direction and are easily affected by normal pressure under multidirectional deformation. To solve this problem, we present a bilayer liquid–metal interdigitated capacitive omnidirectional flexible strain sensor. The device employs liquid–metal interdigitated electrodes encapsulated in Ecoflex and is fabricated as a five-layer sandwich structure via a low-cost mask-assisted laser patterning process. By integrating two capacitive sensing units, <i>C</i>₁ (lower sensing layer) and <i>C</i>₂ (upper sensing layer), with distinct orientations in a 30° cross-stacked architecture, the device can detect in-plane strain with different directional responses. Single-layer interdigitated electrodes show different capacitive responses when stretched parallel or perpendicular to the electrode direction, whereas the bilayer structure generates distinguishable dual-channel outputs over tensile directions from 0° to 180°. Simulations and experiments confirm a linear, repeatable, and direction-dependent response under multidirectional stretching. Leave-one-angle-out cross-validation yielded a mean absolute angular error of 3.12°, an angular root-mean-square error of 3.70°, and a maximum absolute angular error of 6.05°. Under normal loads of 10–17.5 N, the capacitance signals of both channels remain nearly unchanged, indicating low sensitivity to normal pressure. On-body tests further showed that the sensor records stable and reproducible direction-dependent strain signals during periodic wrist, knee, and waist motions. This work provides a design strategy for flexible capacitive strain sensors in wearable direction-resolved strain monitoring, health sensing, and electronic skin.</p></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 10","pages":"8546 - 8560"},"PeriodicalIF":2.8,"publicationDate":"2026-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148909429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Study on Correlation Between EPR-Derived Local Symmetry and Photoluminescence in Co-precipitated Sr2P2O7:Eu2+ Phosphors for Solid State Lighting","authors":"Vijay Singh,&nbsp;Santhosh Kumar Jayaraj,&nbsp;Aman Prasad,&nbsp;A. S. Rao,&nbsp;S. Watanabe,&nbsp;T. K. Gundu Rao","doi":"10.1007/s11664-026-13069-5","DOIUrl":"10.1007/s11664-026-13069-5","url":null,"abstract":"<div><p>Undoped and Eu²⁺-doped strontium pyrophosphate phosphors, Sr₂P₂O₇ and Sr_1.96P₂O₇:0.04Eu²⁺, were synthesized by a simple coprecipitation route. X-Ray diffraction results show that both compositions crystallize in an orthorhombic <i>α</i>‑Sr₂P₂O₇ structure, indicating that Eu²⁺ ions are successfully incorporated into the Sr²⁺ sublattice without disturbing the overall lattice structure and phase. Kubelka–Munk analysis of the diffuse reflectance spectroscopy data indicates a slight narrowing of the apparent optical bandgap from 3.41 eV to 3.27 eV upon doping, demonstrating the introduction of Eu²⁺ localized defect states. This modification of the electronic structure strengthens absorption in the lower‑energy region, which is favorable for improved excitation and emission efficiency in phosphor applications. The synthesized phosphor emits a broad, deep-blue band (4<i>f</i>⁶5<i>d</i>¹ → 4<i>f</i>⁷ transition of Eu²⁺) under 264 nm UV excitation, due to Eu²⁺ substituting into multiple crystallographically distinct and distorted Sr²⁺ sites. The Eu²⁺-doped Sr₂P₂O₇ phosphor exhibits multiple resonance lines in its electron paramagnetic resonance spectrum, particularly in the low-field region, along with additional signals near <i>g</i>  ≈2.0. Structural distortions in the local environment around the Eu²⁺ ions generate relatively strong crystal fields at their sites, giving rise to resonance lines in the low-field region. These low-symmetry local crystal fields at the Eu²⁺ sites correlate with the observed photoluminescence and structurally account for the broad nature of the 423 nm emission band. We agree that further studies, particularly quantum yield and thermal quenching analyses, are required; however, this preliminary work provides useful structural insights into pyrophosphate phosphors for potential solid-state lighting applications.</p></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 10","pages":"9024 - 9034"},"PeriodicalIF":2.8,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148909801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cost-Effective β-SiAlON/Yb2+ Green Phosphors: From Synthesis to Characterization of Optical, Crystallographic, and Microstructural Properties","authors":"Pelin Cagim Tokat-Birgin,&nbsp;Rasim Ceylantekin,&nbsp;Servet Turan,&nbsp;Hilmi Yurdakul","doi":"10.1007/s11664-026-13092-6","DOIUrl":"10.1007/s11664-026-13092-6","url":null,"abstract":"<div><p><i>β</i>-SiAlON phosphors have attracted attention in light-emitting diodes (LEDs) over the last decade due to their outstanding properties, including low energy consumption, long service life, and high impact. Here, a mixture consisting of kaolin (Al₂O₃.2SiO₂·2H₂O), silica (SiO₂), active carbon (C), Yb₂O₃ (0.01 ≤ <i>x</i> ≤ 0.07 mol.%), and a Li₂CO₃ activator was sintered in two steps (1050°C for 1 h followed by 1500°C for 6 h) under N₂ atmosphere with 0.75 L/min through carbothermal reduction and nitridation (CRN). Based on the x-ray diffraction (XRD) and Rietveld refinement analyses of the produced specimens, Yb²⁺-doped <i>β</i>-SiAlON phosphors were obtained as a single phase. Microstructural observations of <i>β</i>-SiAlON phosphors were characterized using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Accordingly, the <i>β</i>-SiAlON phase was successfully activated by the Yb rare-earth cation. In addition, <i>β</i>-SiAlON powders were needle-like and equiaxed nucleoid hexagonal or short-grained. The photoluminescence (PL) analysis revealed that Yb²⁺/<i>β</i>-SiAlON phosphors exhibited a broad emission peak in the green-to-greenish-yellow range (520–570 nm), with a maximum at 543 nm. Also, the Commission Internationale de l’éclairage (CIE) <i>x</i> and <i>y</i> coordinates specified that all <i>β</i>-SiAlON:Yb²⁺ phosphors were within the green emission region. Our approach, presented herein, enables the synthesis of low-cost monophase Yb²⁺/<i>β</i>-SiAlON phosphors from economical kaolin raw material, rather than high-purity powders, via the CRN production method.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 10","pages":"9035 - 9049"},"PeriodicalIF":2.8,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11664-026-13092-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148909802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Theoretical Insight into the Impact of Bandgap Grading of CIGS on Charge Carrier Dynamics of a Lead-Free Sm2NiMnO6/CIGS Hybrid Solar Cell at Different Working Temperatures","authors":"Hemani Dikshit,&nbsp;Ram Narayan Chauhan,&nbsp;Mohammad Imamuddin,&nbsp;Debmalya Roy","doi":"10.1007/s11664-026-13071-x","DOIUrl":"10.1007/s11664-026-13071-x","url":null,"abstract":"<div><p>Copper indium gallium selenide (CIGS) has been used worldwide to develop efficient solar cells owing to its intriguing optoelectronic properties. However, the widespread manufacturing of solar cells achieving high efficiency is still far from commercialization due to their poor stability under external conditions. In this work, we have incorporated Sm₂NiMnO₆ (SNMO) as a hole transport layer in a CIGS-based solar cell and comprehensively analyzed the impact of bandgap grading (<i>E</i>_g ~ 1.1–1.5 eV) of the CIGS layer on the charge carrier dynamics of the Sm₂NiMnO₆/CIGS solar cell at different working temperatures (<i>T</i> ~ 300–600 K) using SCAPS-1D simulation software. The study shows that devices with a higher CIGS bandgap (<i>E</i>_g &gt; 1.10 eV) exhibit better stability in efficiency under higher operating temperature. The power conversion efficiency (<i>ƞ</i>) of the solar cell with a low bandgap (<i>E</i>_g ~ 1.10 eV, CIGS) was degraded continuously with an increase in temperature from 300 K to 600 K. However, the value of <i>ƞ</i> for higher-bandgap (<i>E</i>_g &gt; 1.10 eV) devices remains stable up to a certain range of temperature (<i>T</i>_C). The <i>T</i>_C value was found to increase (340–460 K) with an increase in the bandgap (<i>E</i>_g ~ 1.20-1.50 eV) of CIGS, enabling its potential application in various terrestrial hybrid systems.</p></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 10","pages":"8739 - 8763"},"PeriodicalIF":2.8,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148909715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nano-Structural Metamaterial-Based Optical Rectenna for Solar Energy Harvesting with Quadruple Cut Cylindrical Resonators","authors":"Yanal S. Faouri,&nbsp;Ahmad N. Zalat,&nbsp;Mohammad Rashed Iqbal Faruque","doi":"10.1007/s11664-026-13086-4","DOIUrl":"10.1007/s11664-026-13086-4","url":null,"abstract":"<div><p>This paper presents the design and optimization of a high-performance nano-rectenna for harvesting solar energy via a metamaterial geometry. This is achieved with the design of an optimized unit cell, namely, a quadruple cut cylindrical resonator (QCCR), intended for broadband absorption ranging from ultraviolet to infrared frequencies. Numerical simulation and electromagnetic analysis were done to study how geometric changes in the QCCR affect absorption, resonance, and overall energy conversion efficiency. The optimized QCCR structure achieves up to 90% absorption in a very wide spectral band of 242–1000 THz, a dramatic performance enhancement in the visible and near-infrared region of the spectrum. The breakthrough fills an essential gap in all other inefficient broadband solar harvesters. The broader spectral range might lead to higher solar energy conversion efficiency. Electromagnetic field distribution and current density analysis exhibit strong resonance and coupling behavior with potential for efficient energy harvesting. The study also explores scaling up the design to an array of unit cells and examines direct-current (DC) voltage generation, the role of the rectifying diode, and the angular sensitivity of the QCCR structure.</p></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 10","pages":"8712 - 8738"},"PeriodicalIF":2.8,"publicationDate":"2026-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148909479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Simulating Nontoxic Double Perovskites: Deciphering Er3+-Driven Stability and Optimized Opto-Thermoelectric Performance of Cs2AgAs1−xErxCl6","authors":"Muhammad Zain Ul Abdin,&nbsp;Syed Zuhair Abbas Shah,&nbsp;Saima Zafar,&nbsp;Majed M. Alghamdi,&nbsp;Adel A. El-Zahhar,&nbsp;Amna Parveen","doi":"10.1007/s11664-026-13095-3","DOIUrl":"10.1007/s11664-026-13095-3","url":null,"abstract":"<div><p>In pursuit of stable, eco-friendly, abundant, and efficient materials for optoelectronic and thermoelectric applications, the effects of Er³⁺ doping on Cs₂AgAsCl₆ double perovskites are explored. Arsenic (As) is a highly toxic and hazardous element, so it is gradually replaced with the nontoxic metal erbium (Er) at concentrations of 25% and 50%, and its effects on the stability, optoelectronic features, and thermoelectric performance are investigated. The Cs₂AgAs_1−<i>x</i>Er_<i>x</i>Cl₆ (<i>x</i> = 0.00, 0.25, and 0.50) compounds retain their face-centered cubic structure throughout the doping range and satisfy the Goldschmidt, Born–Huang, and negative formation energy criteria, confirming their structural, mechanical, and thermodynamic stability. The electronic bandgaps are 2.62 eV, 2.65 eV, and 2.66 eV, which are well suited for optoelectronic applications. The optical characteristics are found to be interesting, with absorption peaks approaching 10⁵ cm⁻¹ and optical conductivity peaks reaching 10¹⁵ s⁻¹. Furthermore, favorable thermoelectric performance is predicted, with a figure of merit reaching 0.987, indicating reasonable efficiency for thermal energy conversion. Overall, the Er doping improves the environmental compatibility of Cs₂AgAsCl₆ while preserving its optoelectronic and thermoelectric features, making the studied compounds promising for next-generation eco-friendly and efficient energy devices.</p></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 10","pages":"8571 - 8581"},"PeriodicalIF":2.8,"publicationDate":"2026-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148909480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced Thermoelectric Performance of In2O3 via Potassium Doping: Decoupling Electrical and Thermal Transport","authors":"Bo Feng,&nbsp;Zhiwen Yang,&nbsp;Yonghong Chen,&nbsp;Haibo Lian,&nbsp;Wenzheng Li,&nbsp;Tong Tang,&nbsp;Guopeng Zhou,&nbsp;Suoluosu Yang,&nbsp;Tongqiang Xiong,&nbsp;Haitao Zhang,&nbsp;Wenhua Dai,&nbsp;Jiang Zhu,&nbsp;Sihan Cheng","doi":"10.1007/s11664-026-13047-x","DOIUrl":"10.1007/s11664-026-13047-x","url":null,"abstract":"<div><p>To tackle the low thermoelectric figure-of-merit (<i>ZT</i>) of In₂O₃-based <i>n</i>-type oxide thermoelectrics arising from high thermal conductivity, we perform a systematic investigation on K-doped In₂O₃. Doping with large-radius <i>K</i>⁺ achieves coordinated regulation of electrical and thermal transport behaviors. Characterizations confirm that low-concentration K is fully soluble in the In₂O₃ lattice and triggers lattice expansion and distortion. After K incorporation, the carrier concentration increases from ~ 8.6 × 10¹⁷ cm⁻³ to ~ 1.33 × 10¹⁹ cm⁻³, along with enhanced electrical conductivity. The elevated density of states around the Fermi level restrains the reduction of the Seebeck coefficient and optimizes the power factor. The introduced mass and stress fluctuations lower the Young’s modulus and strengthen phonon scattering, leading to reduced lattice thermal conductivity. By separately optimizing electrical conduction and thermal conduction, the <i>ZT</i> value and high-temperature thermoelectric performance of the samples are improved. This work provides a practical doping route for the preparation of high-performance, low-cost and environmentally friendly <i>n</i>-type oxide thermoelectric materials.</p></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 10","pages":"8561 - 8570"},"PeriodicalIF":2.8,"publicationDate":"2026-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148909481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}