Advanced Functional Materials最新文献_第7页

Harnessing Halogen-Induced Anharmonic Effect to Achieve Low Lattice Thermal Conductivity in High-Symmetry Cu2SnS3 for High-Performance Thermoelectric Applications

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-03-20 DOI: 10.1002/adfm.202501535

Jia Wan, Lan Li, Chensheng Lin, Yi Wu, Zhipeng Cheng, Zhongzhen Luo, Yue Lin, Shunda Yang, Min Luo

{"title":"Harnessing Halogen-Induced Anharmonic Effect to Achieve Low Lattice Thermal Conductivity in High-Symmetry Cu2SnS3 for High-Performance Thermoelectric Applications","authors":"Jia Wan, Lan Li, Chensheng Lin, Yi Wu, Zhipeng Cheng, Zhongzhen Luo, Yue Lin, Shunda Yang, Min Luo","doi":"10.1002/adfm.202501535","DOIUrl":"https://doi.org/10.1002/adfm.202501535","url":null,"abstract":"While possessing outstanding electrical properties, suppressing the lattice thermal conductivity (κlat) is of great significance for achieving excellent thermoelectric materials. Here, based on optimizing electrical transport by transforming monoclinic Cu2SnS3 into a cubic phase, Halogen atoms are employed alloying to enhance anharmonicity, effectively suppressing phonon propagation in high-symmetry materials, thereby reducing κlat while maintaining excellent electrical transport properties. An alloying study of CuX (X = Cl, Br, I) with Cu2SnS3 is conducted and the correlation between anharmonicity and the ionic character in chemical bonds is examined. As symmetry increases, the power factor (PF) of the samples rises dramatically from 0.96 to 7.8 µW cm−1 K−2, further increasing to 12.77 µW cm−1 K−2 with the introduction of Sn vacancies. A comprehensive analysis of band structure, anharmonicity, and lattice distortion reveals that the CuBr-alloyed sample exhibits significantly higher performance compared to the other variations. Ultimately, the optimized Cu2Sn0.94S3-20 mol% CuBr reaches a peak ZT of 1.17 at 773 K and achieves one of the highest average ZT of 0.70 within the Cu2SnS3 system. These findings highlight the potential of harnessing halogen-induced anharmonic effects to facilitate high-performance thermoelectric applications, underscoring the viability of Cu2SnS3 as a candidate for sustainable energy solutions.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"61 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143660963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Low-Surface-Energy Copper Promotes Atomic Diffusion and Ordering in PtFeCu Intermetallic Compounds for Oxygen Reduction Catalysis

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-03-20 DOI: 10.1002/adfm.202501610

Yan Nie, Shuhao Wang, Quentin Meyer, Hongyu Guo, Chen Jia, Dazhi Yao, Yingjun Sun, Jun Chen, Shaojun Guo, Chuan Zhao

{"title":"Low-Surface-Energy Copper Promotes Atomic Diffusion and Ordering in PtFeCu Intermetallic Compounds for Oxygen Reduction Catalysis","authors":"Yan Nie, Shuhao Wang, Quentin Meyer, Hongyu Guo, Chen Jia, Dazhi Yao, Yingjun Sun, Jun Chen, Shaojun Guo, Chuan Zhao","doi":"10.1002/adfm.202501610","DOIUrl":"https://doi.org/10.1002/adfm.202501610","url":null,"abstract":"Carbon-supported platinum intermetallic compound nanoparticles are seen as the next-generation cathodic catalysts for hydrogen fuel cells due to their high activity and stability. However, their synthesis faces challenges from a large diffusion barrier for atom ordering, leading to limited oxygen reduction performance. Understanding the formation mechanisms during synthesis is crucial for material design and device-level validation, which remains a challenge. Herein, copper-induced atom ordering is reported for the reconstruction of commercial Pt/C into ordered PtFeCu intermetallic compounds. Low-surface-energy copper is the key to the boosted atom ordering. Due to its lower surface energy than those of platinum and iron, Cu atoms are prone to diffuse to the surface, thereby leaving more vacancies behind vacant sites and facilitating atom diffusion into intermetallic structures. Copper-induction alters the electronic structure of PtFeCu and therefore enhances its mass activity to 1.0 A mg−1 in liquid half-cells. H2─O2 powered fuel cells demonstrate remarkable stability, retaining over 75% of initial performance, thereby exceeding the US Department of Energy target, with a minimal platinum loading of merely 0.1 mg cm−2. The study offers insights into the rational design of intermetallic compound catalysts and validation of their application for hydrogen fuel cells.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"29 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143660846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Autonomous Tilt Sensing System Utilizing Optimized Fabrication-Enhanced Nanocomposite Triboelectric Nanogenerator for Full-Spherical Coverage

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-03-20 DOI: 10.1002/adfm.202422259

Hyunwoo Cho, Yujin Jung, Geunchul Kim, Daewon Kim

{"title":"Autonomous Tilt Sensing System Utilizing Optimized Fabrication-Enhanced Nanocomposite Triboelectric Nanogenerator for Full-Spherical Coverage","authors":"Hyunwoo Cho, Yujin Jung, Geunchul Kim, Daewon Kim","doi":"10.1002/adfm.202422259","DOIUrl":"https://doi.org/10.1002/adfm.202422259","url":null,"abstract":"Electronic tilt sensors are extensively utilized in modern industrial applications such as construction, automotive, aerospace, and robotics. However, self-powered tilt sensors with full-spherical coverage remains underexplored. This study introduces an autonomous peak-detection tilt sensing (APTS) system utilizing a tilt sensing triboelectric nanogenerator (TS-TENG) with interdigitated electrodes (IDEs) and a ball mechanism. The TS-TENG integrates spinel CuCo2O4 (CCO) nanopillars on a polymethyl methacrylate (PMMA) sub-microfibrous structure. The optimized CCO@PMMA-based TENG exhibits significant enhancement in performance. The open-circuit voltage increases from 176.23 to 391.82 V, a 2.22-fold increase, and the short-circuit current increases from 29.40 to 91.87 µA, a 3.12-fold increase compared to the bare PMMA-based TENG. Additionally, under a load resistance of 2 MΩ, the TS-TENG generates a maximum power of 20.39 mW. The APTS system is successfully validated through both simulation and experimental approaches. By implementing a counting mechanism to track the types and numbers of positive and negative peaks, the system achieves omnidirectional full-spherical coverage. This work not only elucidates the optimization process of the CCO@PMMA composite and the influence of CCO on triboelectricity but also underscores the potential of TENGs as self-powered 360° tilt sensors.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"21 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143660961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-03-20 DOI: 10.1002/adfm.202424556

Eunyoung Hong, William D. J. Tremlett, Lucy Hart, Beier Hu, Zhuoran Qiao, Patipan Sukpoonprom, Sarah Fearn, Edoardo Angela, Matilde Brunetta, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis, Davide Nodari, Martyn A. McLachlan, Piers R. F. Barnes, Artem A. Bakulin, Nicholas J. Long, Nicola Gasparini

{"title":"Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability","authors":"Eunyoung Hong, William D. J. Tremlett, Lucy Hart, Beier Hu, Zhuoran Qiao, Patipan Sukpoonprom, Sarah Fearn, Edoardo Angela, Matilde Brunetta, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis, Davide Nodari, Martyn A. McLachlan, Piers R. F. Barnes, Artem A. Bakulin, Nicholas J. Long, Nicola Gasparini","doi":"10.1002/adfm.202424556","DOIUrl":"https://doi.org/10.1002/adfm.202424556","url":null,"abstract":"Despite the great potential of lead-halide perovskite photodetectors for broadband photodetection, ion migration in perovskites and parasitic charge injection from adjacent layers remain major challenges, ultimately leading to device failure. Here, the novel use of an ultra-thin layer of ferrocenyl-bis-phenyl-2-carboxylate (FcPhc2) is demonstrated as a hole-blocking layer. It is shown that FcPhc2 creates an energetic barrier between the perovskite and the electron transport layer, significantly reducing hole injection from the Ag contact. This improvement results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V and 740 nm. In addition, FcPhc2 effectively inhibits I− oxidation induced by injected holes and reduces formed I2 on the perovskite surface, enhancing reverse bias stability. The increase in detectivity and stability does not compromise the high response speed of FcPhc2-based devices that operate on the scale of 150 ns and 1.3 MHz at −0.5 V in photo- and electrical-responses.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"90 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143660967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improving the Performance of Ternary Organic Solar Cells via Optimizing Molecular Orientation and 3D Charge Transport

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-03-20 DOI: 10.1002/adfm.202500148

Bing Zheng, Xiaoling Ma, Yuchen Yue, Wenhao Peng, Han Shen, Fujun Zhang, Jingxia Wang, Panfeng Gao, Lijun Huo

{"title":"Improving the Performance of Ternary Organic Solar Cells via Optimizing Molecular Orientation and 3D Charge Transport","authors":"Bing Zheng, Xiaoling Ma, Yuchen Yue, Wenhao Peng, Han Shen, Fujun Zhang, Jingxia Wang, Panfeng Gao, Lijun Huo","doi":"10.1002/adfm.202500148","DOIUrl":"https://doi.org/10.1002/adfm.202500148","url":null,"abstract":"Recently, through in-depth investigations of ternary organic solar cells (OSCs), scientists have discovered that small molecules (SMs) with edge-on orientation serving as the third component can boost transverse charge transport and consequently enhance device performance. Nevertheless, little research has been conducted on determining how to select an appropriate third component to improve 3D charge transport. Herein, four SMs are designed by gradually increasing the quantity of alkyl thiophene as an π-bridge to adjust their crystallinity and orientation. The resulting SMs show similar edge-on orientation but different crystalline degrees, due to the complex effects of molecular steric hindrance and extended conjugation. After the introduction of SMs, most of the ternary devices exhibited a pronounced improvement in power conversion efficiencies (PCEs) than the control binary counterparts. An elegant PCE of 19.02% and a fill factor approaching 80% are collected in the ternary OSCs. A balanced 3D charge transport bimodal mechanism is proposed and effectively elucidated in the ternary blend film, enabling charges to bypass the interfering domains and thereby improve the device performance. This research provides guidance for the development of SM third components to form 3D percolation paths that facilitate charge transport and subsequently enhance the performance of ternary devices.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"40 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143660969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Scalable Interfacial Engineering with Lithiophilic-Lithiophobic Layers for High-Performance All-Solid-State Li-Metal Batteries

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-03-20 DOI: 10.1002/adfm.202501573

Pengfei Ren, Nicholas S. Grundish, Sidong Zhang, Lihai Zhou, Ruiping Liu, Nan Wu, Yutao Li

{"title":"Scalable Interfacial Engineering with Lithiophilic-Lithiophobic Layers for High-Performance All-Solid-State Li-Metal Batteries","authors":"Pengfei Ren, Nicholas S. Grundish, Sidong Zhang, Lihai Zhou, Ruiping Liu, Nan Wu, Yutao Li","doi":"10.1002/adfm.202501573","DOIUrl":"https://doi.org/10.1002/adfm.202501573","url":null,"abstract":"The stability of the lithium-metal/solid electrolyte interface remains a critical challenge in the development of all-solid-state lithium-metal batteries (ASSLMBs), as it directly influences their cycling performance, rate capability, and safety. Here, a thin, flexible, and lithium-stable sulfide electrolyte membrane is presented with high ionic conductivity (3.25 × 10−3 S cm−1) and low electronic conductivity (1.45 × 10−9 S cm−1) at room temperature, prepared with an AlCl3 coating in a low-cost wet process. The in situ formation of a lithiophilic Li-Al alloy and a lithiophobic LiCl layer at the interface creates a stable dual-layer structure, effectively suppressing Li-dendrite growth and enhancing Li-transport across the interface. Symmetric Li/Li cells with this coated membrane exhibit exceptional cycling stability, operating for over 10000 h at 0.5 mA cm−2. ASSLMBs assembled with a LiNi0.8Co0.1Mn0.1O2 cathode and a metallic lithium anode exhibit excellent cycling performance, highlighting the potential of this coating strategy to stabilize the Li/solid electrolyte interface and expedite the commercialization of ASSLBs.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"26 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143660905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Engineering a Non-Antibiotic Biomimetic Nano-Urchin for Broad-Spectrum and Long-Acting Antibacterial Spraying

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-03-20 DOI: 10.1002/adfm.202501119

Zijun Zhang, Limei Qian, Nan Zhang, Xiaobing Gao, Taolei Sun, Guanbin Gao

{"title":"Engineering a Non-Antibiotic Biomimetic Nano-Urchin for Broad-Spectrum and Long-Acting Antibacterial Spraying","authors":"Zijun Zhang, Limei Qian, Nan Zhang, Xiaobing Gao, Taolei Sun, Guanbin Gao","doi":"10.1002/adfm.202501119","DOIUrl":"https://doi.org/10.1002/adfm.202501119","url":null,"abstract":"The escalating threat of bacterial infections, especially antibiotic-resistant strains, highlights the need for efficient, long-term, broad-spectrum, and non-antibiotic disinfectants. Here a biomimetic nano-disinfectant, Au@ZnO nano-urchins (Au@ZnO-NUs) is introduced, inspired by sea urchin morphology. One of the nano-urchins consisting of an Au-nanocore (25 ± 5 nm in diameter) surrounded by 16 ± 2 ZnO-nanospears (length: 50 ± 5 nm, diameter: 14 ± 6 nm) is screened out via exhibiting exceptional antibacterial efficacy. Impressively, this Au@ZnO-NU shows over 99.47% effectiveness against 7 typical bacteria including the methicillin-resistant Staphylococcus aureus (MRSA) at low concentration (<8 µg mL−1) with effects lasting at least 30 days. The underlying bacteriostatic mechanism involves multiple pathways, including physical penetration of bacterial walls, ROS over-production, membrane-potential dissipation, ATP-level downregulation, and biofilm deformation obtained from both experiment and transcriptomic-analysis. Moreover, these nano-urchins can be easily applied as a spray-coating on any surface, creating a wash-resist, cicada-wing-like nano-spiky array antibacterial layer. Remarkably, this Au@ZnO-NU exhibits excellent anti-bacterial performance in MRSA-infectedlarge wound (25 mm) healing rat models, which is even better than Vancomycin, approaching the natural healing rate of sterile wounds. This study offers a promising candidate for daily antibacterial applications and advances the biomimetic design of non-antibiotic antibacterial strategies.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"56 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143660907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Revealing the Critical Role of Electron-Withdrawing Cores in Bulk Passivation of Diammonium Ligands Toward High-Performance Perovskite Solar Cells

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-03-20 DOI: 10.1002/adfm.202424259

Jiayu Hu, Ying Qiao, Jie Zeng, Hongbing Li, Huayang Li, Wenbo Peng, Shaoyu Geng, Ya Li, Jie Yang, Yeming Jin, Ruirui Cao, Fuqiang Li, Sung Heum Park, Nan Shen, Fei Guo, Baomin Xu, Shi Chen

{"title":"Revealing the Critical Role of Electron-Withdrawing Cores in Bulk Passivation of Diammonium Ligands Toward High-Performance Perovskite Solar Cells","authors":"Jiayu Hu, Ying Qiao, Jie Zeng, Hongbing Li, Huayang Li, Wenbo Peng, Shaoyu Geng, Ya Li, Jie Yang, Yeming Jin, Ruirui Cao, Fuqiang Li, Sung Heum Park, Nan Shen, Fei Guo, Baomin Xu, Shi Chen","doi":"10.1002/adfm.202424259","DOIUrl":"https://doi.org/10.1002/adfm.202424259","url":null,"abstract":"Diammonium derivatives with electron-withdrawing cores of cyclohexyl or phenyl have demonstrated enormous potential in achieving high-performance perovskite solar cells. Nevertheless, the critical role of these electron-withdrawing cores of the diammonium passivation on device performance is yet to be elucidated. Herein, two kinds of diammonium ligands of 1, 4-cyclohexyldimethylammonium diiodide (CyDMADI) and 1, 4-phenyldimethylammonium diiodide (PhDMADI) are introduced into the perovskite precursor for bulk passivation. The PhDMADI system exhibits a stronger electron-withdrawing unit of phenyl in comparison to the CyDMADI system with a cyclohexyl core, thus resulting in enhanced electrostatic interaction between uncoordinated Pb2+ and phenyl groups and stronger hydrogen bonds between PhDMADI and the I─Pb skeleton. Such strengthened interactions between PhDMADI and perovskite effectively inhibit the generation of trap states and therefore significantly decrease non-radiative recombination. The PhDMADI-passivated film demonstrates mitigated microstrain and decreased grain boundary grooves （GBGs） compared with the CyDMADI-based counterpart. Simultaneously, the PhDMADI treatment can efficiently slow down the hot-carriers cooling dynamics process, benefiting the transfer of hot-carriers. Consequently, the PhDMADI-passivated device achieves an impressive efficiency of 26.04%, along with excellent operating stability which retains 90% of its initial efficiency after 1100 h tracking at the maximum power point under continuous one sun illumination.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"64 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143660964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

P-P Hybrids Antimony Single-Atom Anchored Covalent Organic Framework for Efficient High-Selectivity H2O2 Piezosynthesis

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-03-20 DOI: 10.1002/adfm.202500501

Yimu Jiao, Qiyu Lian, Zhi Li, Muke Lin, Dingren Ma, Zhuoyun Tang, Dehua Xia, Mingshan Zhu

{"title":"P-P Hybrids Antimony Single-Atom Anchored Covalent Organic Framework for Efficient High-Selectivity H2O2 Piezosynthesis","authors":"Yimu Jiao, Qiyu Lian, Zhi Li, Muke Lin, Dingren Ma, Zhuoyun Tang, Dehua Xia, Mingshan Zhu","doi":"10.1002/adfm.202500501","DOIUrl":"https://doi.org/10.1002/adfm.202500501","url":null,"abstract":"The p orbital electrons in main-group metals are generally underrated in the catalytic activity. Herein, an antimony (Sb) single-atom bipyridine-based covalent organic framework (SASb-TpBpy-COF) with the Sb─N coordination is successfully synthesized via 5p-2p orbitals hybridizarion for accomplishing the highly selective piezosynthesis of hydrogen peroxide (H2O2) by the non-radical oxygen reduction reaction (ORR). Notably, the synthesized SASb-TpBpy-COF achieved an impressive H2O2 piezosynthesis yield of 1500.58 µmol g−1 h−1, which is up to more than 7-times higher than the reported catalysts. Moreover, the characterization results confirmed that the 5p-2p orbitals hybrid Sb single-atom can intrinsically drive the local polarization level, charge migration dynamics, electron-hole pairs separation, and affinity toward O2, consequently enhancing the piezoactivity and selective Pauling-type O2 adsorption. Besides, experimental results clarified that the fast H2O2 piezosynthesis is selectively dominated by the non-radical ORR. Furthermore, the dynamic Sb-OOH* intermediate is directly detected, proving the selective Pauling-type O2 adsorption on the Sb single-atom sites. Moreover, this system can achieve an in situ degradation efficiency of over 80% for various emerging pollutants even in the real water samples. Conclusively, this study broadens the fundamental understanding for the fast H2O2 piezosynthesis and provides a highly potential candidate technology for in situ water purification.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"7 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143660966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interfacial Contact Engineering Enables Giant-Performance Semiconductor Nanomembrane Optoelectronic Devices

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-03-18 DOI: 10.1002/adfm.202420533

Yibo Zhang, Gloria Vytas, Haozhe Wang, Sara Almenabawy, Zheng-Hong Lu, Nazir P. Kherani

{"title":"Interfacial Contact Engineering Enables Giant-Performance Semiconductor Nanomembrane Optoelectronic Devices","authors":"Yibo Zhang, Gloria Vytas, Haozhe Wang, Sara Almenabawy, Zheng-Hong Lu, Nazir P. Kherani","doi":"10.1002/adfm.202420533","DOIUrl":"https://doi.org/10.1002/adfm.202420533","url":null,"abstract":"Contact properties at a nanoscale interface critically influence the electrical behaviors of heterogeneous semiconductor devices. Herein, a platform is established to systematically investigate semiconductor nanomembrane interfacial contacts and their impact on the optoelectronic performance of various heterojunctions. Photodiodes with asymmetrical and symmetrical junctions are synthesized through a combination of different contact material stacks and processing steps. Adjusting the surface Schottky barrier height is essential in controlling charge injection and reducing the noise current. Two principal strategies are utilized to enhance the Schottky barrier: surface passivation through interfacial reactions and tuning the buffer layer work function. For electron-rich Si nanomembranes (SiNMs), an indium-tin-oxide (ITO) buffer layer is demonstrated to boost the Schottky barrier through both above strategies by varying device fabrication processing. The work-function tunable semiconductor-like ITO (semi-ITO) is developed for the Schottky junction, while the Ohmic contact is optimized by inserting an emerging low work-function ytterbium oxide (YbOx) layer. Extraordinary performance in sensing faint light is demonstrated, including fA/ µm level reverse dark current, rectification ratio of ≈108, picowatt-level illumination resolution, self-powered detection, and rapid response speed (≈2.57 µs rise time). This research offers a universal approach to modifying interfacial contacts for advanced semiconductor nanomembrane optoelectronic devices.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"61 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143640975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0