Navin Jacob, Ramachandran Dheepika, Ignatious Vijitha, Neethi Raveendran, Riya Martin, Santhi P. Sivakrishna, Tanjore P. Yuvaraj, Biswapriya Deb, Chakkooth Vijayakumar
{"title":"Solution-Processable Conjugated Polymer/SWCNT Composites with Balanced p-Type and n-Type Properties for Scalable Thermoelectric Modules via Automated Dispensing","authors":"Navin Jacob, Ramachandran Dheepika, Ignatious Vijitha, Neethi Raveendran, Riya Martin, Santhi P. Sivakrishna, Tanjore P. Yuvaraj, Biswapriya Deb, Chakkooth Vijayakumar","doi":"10.1002/admt.202500327","DOIUrl":"10.1002/admt.202500327","url":null,"abstract":"<p>Thermoelectric (TE) materials capable of converting waste heat into electrical energy represent a promising solution for sustainable energy harvesting. This study demonstrates scalable TE modules through automated 3D dispensing, utilizing solution-processable conjugated polymer/single-walled carbon nanotube (SWCNT) composites as complementary p-type and n-type components. The p-type polymer integrated with SWCNTs (50:50 weight ratio), achieving an electrical conductivity of 478 ± 13 S cm<sup>−1</sup>, while the n-type polymer with SWCNT (40:60 weight ratio), exhibited enhanced environmental stability with electrical conductivity of 202 ± 19 S cm<sup>−1</sup>. The optimized p-type and n-type composites achieve power factors of 47 ± 8 and 64 ± 1.5 µW m<sup>−1</sup> K<sup>−2</sup>, respectively, with corresponding figure of merit (<i>ZT</i>) values of 0.11± 0.02 and 0.15 ± 0.02 at 303 K. A three pair TE module generates a maximum power output of 0.18 µW at Δ<i>T</i> = 100 K. Temperature-dependent measurements reveal distinct transport mechanisms: weak metallic behavior in the p-type composite and thermally activated hopping (<i>E</i><sub>a</sub> = 22.4 meV) in the n-type film. The successful integration through automated fabrication demonstrates potential for scalable production of flexible organic TE modules.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 18","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100931","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":"High Aspect Ratio, Superconducting Vacuum Gap Capacitor NEMS with Plate Distances Down to 32 nm","authors":"Ioan Ignat, Daniel Platz, Ulrich Schmid","doi":"10.1002/admt.202401909","DOIUrl":"10.1002/admt.202401909","url":null,"abstract":"<p>Fabrication of aluminium vacuum gap capacitor based nano electromechanical systems (NEMS) is investigated, where the bottom electrode is fixed, and the top electrode is free to move. To avoid collapse of the top electrode, simultaneous oxidation of both sides of the top electrodes is ensured by the deposition of silicon protection layer without breaking vacuum, intended to be removed with the release process of the membrane with XeF<sub>2</sub> gas. Furthermore, the vertical stress gradient is controlled by optimizing the sputter deposition parameters for the aluminium top electrode to 50 W and 3 µbar for 100 nm. These techniques resulted in wafer-level high-yield fabrication of capacitors with radii between <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mn>7</mn>\u0000 <mspace></mspace>\u0000 <mi>μ</mi>\u0000 <mi>m</mi>\u0000 </mrow>\u0000 <annotation>$7 ,{umu }mathrm{m}$</annotation>\u0000 </semantics></math> and <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mn>30</mn>\u0000 <mspace></mspace>\u0000 <mi>μ</mi>\u0000 <mi>m</mi>\u0000 </mrow>\u0000 <annotation>$30 ,{umu }mathrm{m}$</annotation>\u0000 </semantics></math>. A cryostat at 400 mK and an integrated piezoactuator are used to prove electromechanical coupling.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 18","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/admt.202401909","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xinfeng Ouyang, Shuo Duan, Jiujiang Ji, Yunpeng Liu, Wendi Tian, Kangmin Niu, Yen Wei
{"title":"Study on the Compressive Strength of Carbon Fiber Reinforced Polymer Composites – A Lesson Learned from Composite Structure Design for Large Commercial Aircraft","authors":"Xinfeng Ouyang, Shuo Duan, Jiujiang Ji, Yunpeng Liu, Wendi Tian, Kangmin Niu, Yen Wei","doi":"10.1002/admt.202500549","DOIUrl":"10.1002/admt.202500549","url":null,"abstract":"<p>Over the past 50 years, advanced Carbon Fiber Reinforced Polymer (CFRP) composites have become central to large commercial aircraft structures. The Boeing 787 and Airbus A350 are the first to feature composite wings and fuselages, marking significant milestones. However, recent developments in the Boeing 777-9 program suggest a shift away from this trend, partly due to CFRP's cost. Although high-performance CFRP composites are up to 30% lighter than aluminum alloys in tensile strength comparisons, their compressive strength limitations have hindered their overall structural performance. This paper reviews compressive strength based on the latest data and results from Toray and provides a comprehensive theoretical investigation into predicting CFRP compressive performance, with a focus on kinking band formation mechanisms. The study compares upper bound solutions from various theories with published data. The findings highlight that the compressive strength of high-performance CFRP composites is primarily determined by the stiffness and toughness of the resin assuming the elimination of bonding defects and fiber misalignments. To advance CFRP materials, enhancing the resin's nonlinear shear modulus should be prioritized. This is especially significant for China's C919 and C929 projects, which aim to replace imported CFRP with domestically sourced materials, advancing self-reliance in aerospace manufacturing.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 18","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100941","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}
Zeshaan H. Shamsi, Leunam Fernandez-Izquierdo, Rodolfo Rodriguez-Davila, Jesus A. Caraveo-Frescas, Manuel Quevedo-Lopez
{"title":"X-ray Detectors Using Inorganic Perovskite Thin Film Deposited by Close-Space Sublimation","authors":"Zeshaan H. Shamsi, Leunam Fernandez-Izquierdo, Rodolfo Rodriguez-Davila, Jesus A. Caraveo-Frescas, Manuel Quevedo-Lopez","doi":"10.1002/admt.202500075","DOIUrl":"10.1002/admt.202500075","url":null,"abstract":"<p>Metal halide perovskites are emerging as robust alternatives to traditional radiation detection materials such as amorphous selenium (a-Se) and cadmium zinc telluride (CZT). This emergence is attributed to their high atomic number, excellent X-ray attenuation, remarkable optoelectronic properties, and low cost. While organic-inorganic perovskites exhibit high sensitivity, they are prone to degradation under moisture and heat. In contrast, inorganic perovskites offer enhanced environmental and thermal stability. This study presents high-sensitivity X-ray detectors utilizing thin-film inorganic CsPbX<sub>3</sub> perovskites, which are deposited via close-space sublimation with engineered solid-state precursors. The band structures were characterized using Scanning Kelvin Probe, Photoelectron Spectroscopy, and UV-Vis analysis. The devices were fabricated in the form of PN heterojunction diodes (ITO/a-Ga<sub>2</sub>O<sub>3</sub>/CsPbX<sub>3</sub>/Au) and assessed through I-V curves, dark current reproducibility, and photoresponse evaluations. Among the various halide compositions, orthorhombic CsPbBr<sub>3</sub> and mixed-halide CsPbBr<sub>2</sub>I exhibited superior electrical and environmental stability when compared to cubic CsPbCl<sub>3</sub> or CsPbCl<sub>2</sub>Br. CsPbBr<sub>3</sub> achieved an X-ray sensitivity of 130 µC Gy<sub>air</sub><sup>−1</sup> cm<sup>−2</sup> at −4 V under 60 keV exposure, which is five times higher than the sensitivity exhibited by commercial a-Se detectors (20 µC Gy<sub>air</sub><sup>−1</sup> cm<sup>−2</sup>). These findings validate CsPbBr<sub>3</sub> as a leading candidate for low-voltage, high-performance, and stable X-ray detection.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 17","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144929919","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}
Yonghee Kim, Hye Won Lee, Min Ju Jung, Sangwook Lee, Joon Hak Oh, Eun Kwang Lee
{"title":"Highly Efficient n-Type Doped Single-Crystalline Perylene Diimide Microwires via Solution Processing for High-Performance Photosensors and Photo-Neuromorphic Devices","authors":"Yonghee Kim, Hye Won Lee, Min Ju Jung, Sangwook Lee, Joon Hak Oh, Eun Kwang Lee","doi":"10.1002/admt.202500681","DOIUrl":"10.1002/admt.202500681","url":null,"abstract":"<p>Solution-processed organic single-crystal semiconductors (OSCSs) with high charge transport properties are being actively studied. However, OSCSs show relatively low intrinsic conductivity in electronic devices compared to inorganic semiconductors. This problem can be solved through doping technology applied to OSCSs. In this study, the enhancement of conductivity and photosensitivity of <i>n</i>-type OSCS microwires (MWs) based on a small molecular semiconductor and an <i>n</i>-type organic cationic dye-based dopant is reported. Transmission and scanning electron microscopy show the attachment of <i>n</i>-type dopants to the terrace edge of OSCS MWs, enabling rapid electron transfer and strong interaction. The <i>n</i>-type doped OSCS MWs show enhanced conductivity and high optoelectronic properties, exhibiting 5,000 times improved photoresponsivity of 1.86 × 10<sup>4</sup> A W<sup>−1</sup> compared to the OSC films fabricated by a thermal evaporation method. Furthermore, the fast photo-response time of <i>n</i>-type doped OSCS MW is measured to be 0.16 s. In addition, the high-performance photo-neuromorphic characteristics using the hole trap effect of cationic dye and applications including Pavlov's dog phenomenon showing conditioned reflex characteristics and image recognition using 4-bit reservoir encoding are demonstrated. The developed high-performance organic photoelectronic devices in this study can be utilized as essential components in future advanced artificial intelligence electronic devices applied to image sensing and optical communications.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 18","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/admt.202500681","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Liquid Impalement Resistant and Mechanically Robust Superhydrophobic Coatings with Anti-Icing Performance","authors":"Bucheng Li, Weidong Liang, Jinfei Wei, Mingyuan Mao, Junping Zhang","doi":"10.1002/admt.202500387","DOIUrl":"10.1002/admt.202500387","url":null,"abstract":"<p>Superhydrophobic coatings attract significant attention due to their unique wettability and broad application potential. However, the main challenges they face in practical applications are achieving excellent impalement resistance and mechanical robustness simultaneously. Here, the preparation of superhydrophobic coatings are reported that integrate exceptional impalement resistance and mechanical robustness through the rational design of hierarchical micro-/nanostructures and systematic optimization strategies. The coatings exhibit good superhydrophobicity, outstanding impalement resistance (e.g., resisting water flow impacts of 7.8 m s<sup>−1</sup> and immersion in 1 m of water for 30 d), high mechanical robustness (e.g., withstanding 2000 cycles of Taber abrasion and 400 cycles of tape-peeling), as well as excellent chemical durability, UV aging resistance, and outdoor stability. These performances are ascribed to the coating's hierarchical micro/nanostructure, the protective effect of the microstructure, and perfluoroalkyl-induced low surface energy. Consequently, the coatings show excellent anti-icing performance, e.g., significantly delaying icing, low ice adhesion strength (<70 kPa in the −10 °C and 60% RH environment), and high stability during repeated icing/deicing. Thus, this method provides a feasible way to enhance the robustness of superhydrophobic coatings, and it will facilitate the potential application of superhydrophobic coatings in various environments.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 17","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144935161","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}
David B. Morse, Zenon Toprakcioglu, Akhila Denduluri-Marthi, James D. Brenton, Craig J. Thomas, Tuomas P. J. Knowles
{"title":"Transcript Identification Using Arrayed Hydrogels With TrapFISH","authors":"David B. Morse, Zenon Toprakcioglu, Akhila Denduluri-Marthi, James D. Brenton, Craig J. Thomas, Tuomas P. J. Knowles","doi":"10.1002/admt.202401953","DOIUrl":"10.1002/admt.202401953","url":null,"abstract":"<p>3′ single-cell transcriptomics aims to uncover transcript abundance across numerous cells to deepen this understanding of cellular diversity. However, sequencing capacity is often a bottleneck in these experiments, limiting the number of cells that can be profiled. This study introduces trapFISH, a highly scalable proof-of-concept method that extends the capabilities of single-cell transcriptomics by embedding cells in hydrogel beads, arraying these beads in microfluidic chambers, and using probe-hybridization for targeted transcript quantification. This approach mitigates sequencing limitations by focusing on custom gene panels, enhancing throughput and facilitating the discovery of rare cell states. Moreover, microfluidic trapping removes the necessity for cell barcoding by linking transcriptional measurements directly with individual hydrogels. These findings demonstrate that trapFISH improves scalability while maintaining high accuracy in identifying key cellular transcripts, opening new avenues in large-scale genomic profiling. By prioritizing biologically meaningful gene expression patterns, trapFISH provides a precise and efficient tool for single-cell characterization, expanding the flexibility and applicability of transcriptomics methods.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 18","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/admt.202401953","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"How to Manufacture Photonic Metamaterials","authors":"Apurba Paul, Gregory Timp","doi":"10.1002/admt.202500313","DOIUrl":"10.1002/admt.202500313","url":null,"abstract":"<p>Metamaterials, which started off focused on optical and electromagnetic applications such as invisibility and “hyperlenses” with resolution beyond the diffraction limit, has now broadened in scope to include pretty much everything from wireless communications (antennas), lasers, computing, solar power, sports equipment, medicine; acoustics, structural mechanics and even air conditioning. Yet, the promises derived from these applications have not been exploited in earnest and the market for them has not grown much so far, likely because a facile and economical method for fabricating them without defect has not emerged. This review scrutinizes the methods used to manufacture metamaterials with the aim to remedy this shortcoming.</p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 18","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/admt.202500313","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jianing Wang, Xuelin Zhang, Yihang Li, Xi Wang, Shumin Xiao, Qinghai Song, Zuyuan He, Jiangbing Du, Hon Ki Tsang, Ke Xu
{"title":"112 Gb s−1 Germanium Photodetector at 2 µm Enabled by a 3D Integrated Waveguide Loop (Adv. Mater. Technol. 11/2025)","authors":"Jianing Wang, Xuelin Zhang, Yihang Li, Xi Wang, Shumin Xiao, Qinghai Song, Zuyuan He, Jiangbing Du, Hon Ki Tsang, Ke Xu","doi":"10.1002/admt.202570058","DOIUrl":"10.1002/admt.202570058","url":null,"abstract":"<p><b>Silicon Photonics</b></p><p>In article number 2401718, Jiangbing Du, Ke Xu, and co-workers show that an optical closed loop based on 3D integrated waveguides can be leveraged for enhanced light-matter interaction. The enhanced absorption enables high responsivity and large bandwidth for on-chip photodetectors beyond its cut-off wavelengths.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 11","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/admt.202570058","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144206767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Improved Flat Frequency Response of Conical Shellular Metamaterial-Enabled Flat Panel Loudspeaker (Adv. Mater. Technol. 11/2025)","authors":"Hyunhee Kwon, Dong Hwi Kim, Wan-Ho Cho, Miso Kim","doi":"10.1002/admt.202570057","DOIUrl":"10.1002/admt.202570057","url":null,"abstract":"<p><b>Conical Shellular Metamaterials</b></p><p>In article number 2401910, Miso Kim and co-workers introduce a high-stiffness, low-density conical shellular metamaterial (CSM) to realize a piezoelectric flat panel loudspeaker with flat frequency responses. Integrating CSM into the diaphragm reduces peak-dip deviation, creating a smoother and more comfortable sound experience. This approach enhances spatial efficiency and overcomes design limitations, thereby expanding the usability of flat panel loudspeakers.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":7292,"journal":{"name":"Advanced Materials Technologies","volume":"10 11","pages":""},"PeriodicalIF":6.4,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/admt.202570057","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144206766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}