Applied Surface Science最新文献_第9页

Preparation of LaFe1.4O3 nanofibers by electrospinning and its high-sensitivity detection performances to formaldehyde 静电纺丝法制备lafe1.40 o3纳米纤维及其对甲醛的高灵敏度检测性能

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2026-06-25 DOI: 10.1016/j.apsusc.2026.167684

Meihua Li, Ran Sun

{"title":"Preparation of LaFe1.4O3 nanofibers by electrospinning and its high-sensitivity detection performances to formaldehyde","authors":"Meihua Li, Ran Sun","doi":"10.1016/j.apsusc.2026.167684","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.167684","url":null,"abstract":"To enhance the formaldehyde detection performance of LaFeO<ce:inf loc=\"post\">3</ce:inf>-based gas-sensitive materials, this study employed an electrospinning method to prepare a series of LaFe<ce:inf loc=\"post\">x</ce:inf>O<ce:inf loc=\"post\">3</ce:inf> nanofibers with varying La/Fe molar ratios (x = 1.3, 1.4 and 1.5). In addition, a nanofiber sensor with x = 1 was prepared and evaluated as a reference. Their structures and morphologies were analyzed using XRD, SEM, TEM, and XPS. Gas sensing tests revealed that the LaFe<ce:inf loc=\"post\">1.4</ce:inf>O<ce:inf loc=\"post\">3</ce:inf> sensor exhibited the most outstanding gas-sensing characteristics, achieving a response value of 73.03 at 200℃ for 100 ppm formaldehyde. The study demonstrated that the introduction of excess Fe elements induced lattice distortion and charge imbalance, leading to the formation of a large number of oxygen vacancies. This increased the surface active sites, thereby promoting surface gas adsorption and redox reactions. This work provides an effective composition control strategy for developing high-performance formaldehyde gas sensors.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"74 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148356518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Rational design of doped SnO2 pickering emulsions for simultaneous photocatalytic and adsorptive water purification 同时光催化和吸附水净化的掺杂SnO2酸洗乳剂的合理设计

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2026-06-25 DOI: 10.1016/j.apsusc.2026.167678

Dmitry Kosyrev, Ivan Agapov, Artur Markarian, Evgenii Skripkin, Daniil Kolokolov, Natalia Bobrysheva, Mikhail Osmolowsky, Mikhail Voznesenskiy, Anastasiia Podurets, Olga Osmolovskaya

{"title":"Rational design of doped SnO2 pickering emulsions for simultaneous photocatalytic and adsorptive water purification","authors":"Dmitry Kosyrev, Ivan Agapov, Artur Markarian, Evgenii Skripkin, Daniil Kolokolov, Natalia Bobrysheva, Mikhail Osmolowsky, Mikhail Voznesenskiy, Anastasiia Podurets, Olga Osmolovskaya","doi":"10.1016/j.apsusc.2026.167678","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.167678","url":null,"abstract":"Fe<ce:sup loc=\"post\">3+</ce:sup>-, Ni<ce:sup loc=\"post\">2+</ce:sup>-, and Co<ce:sup loc=\"post\">2+</ce:sup>-doped SnO<ce:inf loc=\"post\">2</ce:inf> nanoparticles were synthesized via a modified co-precipitation method with simultaneous introduction of precursor salts and surface-modifying agents, and subsequently employed as interfacial stabilizers in multifunctional Pickering emulsions. The surface-modified nanoparticles self-assembled at the oil – water interface, forming photocatalytic droplets capable of dye degradation and partial decomposition of diesel residues from contaminated water. Comprehensive characterization supported by spectroscopic analysis and quantum-chemical modeling elucidated the influence of dopant type and surface modifier distribution on photocatalytic activity and charge separation efficiency. The resulting doped SnO<ce:inf loc=\"post\">2</ce:inf>-based emulsions exhibited high stability, recyclability, and sustained activity under visible light, demonstrating strong potential for integrated water purification systems under environmentally relevant conditions.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"21 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148356592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 decoupling of ion–electron transport by an ultrathin N-doped holey graphene oxide coating for stable Zn metal anodes 超薄氮掺杂多孔氧化石墨烯涂层对稳定锌金属阳极离子电子输运的界面去耦

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2026-06-24 DOI: 10.1016/j.apsusc.2026.167665

Kangmin Lee, Jihong Kim, Jinhyeong Yoon, Chiho Song, Hyeonmin Jo, Hee-Dae Lim, Heejoon Ahn

{"title":"Interfacial decoupling of ion–electron transport by an ultrathin N-doped holey graphene oxide coating for stable Zn metal anodes","authors":"Kangmin Lee, Jihong Kim, Jinhyeong Yoon, Chiho Song, Hyeonmin Jo, Hee-Dae Lim, Heejoon Ahn","doi":"10.1016/j.apsusc.2026.167665","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.167665","url":null,"abstract":"The electrochemical stability of zinc metal anodes is critically governed by coupled ion–electron transport at the electrode–electrolyte interface, which often leads to non-uniform deposition, dendrite growth, and parasitic side reactions in aqueous systems. Herein, we report an ultrathin (∼25 nm) N-doped holey graphene oxide (NHGO) coating that stabilizes Zn metal anodes through interfacial transport regulation rather than bulk passivation. The engineered NHGO layer integrates nanoscale porosity with nitrogen-doped graphene domains, enabling rapid Zn<ce:sup loc=\"post\">2+</ce:sup> transport while moderating electronic conductivity at the Zn surface. This decoupling of ion and electron transport promotes uniform subsurface Zn deposition and suppresses surface-localized plating, dendrite formation, and hydrogen evolution. As a result, the NHGO-coated Zn anode exhibits markedly enhanced interfacial stability, delivering long-term dendrite-free cycling in Zn//Zn symmetric cells and improved reversibility in Zn//Cu configurations. Structural and surface analyses reveal that the ultrathin coating maintains intimate contact with the Zn surface while preserving transport selectivity throughout extended cycling. This work demonstrates a surface-engineering strategy in which nanoscale control of charge transport pathways enables stable metal–electrolyte interfaces, offering a broadly applicable framework for regulating electrochemical reactions at reactive metal surfaces.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"34 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148357157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Synergistic modulation of surface and spatial charges in 3D chitosan/2D MoS2 heterogeneous nanofluidics for high-efficiency osmotic energy conversion 三维壳聚糖/二维二硫化钼非均相纳米流体中表面和空间电荷的协同调节及其高效渗透能转换

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2026-06-24 DOI: 10.1016/j.apsusc.2026.167663

Xiao Geng, Shuqi Hu, Zhenxu Hao, Jiayao Chen, Ling Liu, Ridong He, Yanfang Gao

{"title":"Synergistic modulation of surface and spatial charges in 3D chitosan/2D MoS2 heterogeneous nanofluidics for high-efficiency osmotic energy conversion","authors":"Xiao Geng, Shuqi Hu, Zhenxu Hao, Jiayao Chen, Ling Liu, Ridong He, Yanfang Gao","doi":"10.1016/j.apsusc.2026.167663","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.167663","url":null,"abstract":"The transition to a sustainable energy critically depends on efficient technologies for harvesting renewable energy sources. Nanofluidics reverse electrodialysis technique has emerged as a promising platform for directly converting osmotic energy into electricity, a process fundamentally constrained by the trade-off between ion selectivity and permeability. Here, we report a heterogeneous nanofluidic membrane composed of a porous three-dimensional network of quaternized chitosan (QCS) and a two-dimensional (2D) molybdenum disulfide (MoS<ce:inf loc=\"post\">2</ce:inf>) layer. The core of our strategy lies in the coordinated construction of asymmetric ion transport channels by adjusting the surface charge density of the 2D MoS<ce:inf loc=\"post\">2</ce:inf> and the spatial charge density of the 3D chitosan membrane network. This customized structure significantly enhances ion transport controlled by charge, achieving high selectivity of up to 0.9, while also improving ion transport efficiency and permeability.Therefore, this heterogeneous nanofluidic membrane achieves an output power density of 31.3 W/m<ce:sup loc=\"post\">2</ce:sup> and a conversion efficiency of 41.3% in salt lake/river water systems. The generated electrical energy successfully powers electronic devices. Both experimental and theoretical calculations confirm that the synergistic effect between the two-dimensional surface charge and the three-dimensional spatial charge plays a crucial role in regulating the selective ion diffusion, thereby synergistically promoting excellent energy conversion performance.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"12 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148356497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

An economically scalable sponge-based evaporator with multiscale gradient pores and lowered enthalpy for solar-powered water production via efficient steam generation 一种经济可扩展的海绵蒸发器，具有多尺度梯度孔和低焓，通过有效的蒸汽产生用于太阳能产水

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2026-06-24 DOI: 10.1016/j.apsusc.2026.167661

Yuancen Liu, Leitao Wei, Xinxi Fu, Qian Liu, Yonghua Chen

{"title":"An economically scalable sponge-based evaporator with multiscale gradient pores and lowered enthalpy for solar-powered water production via efficient steam generation","authors":"Yuancen Liu, Leitao Wei, Xinxi Fu, Qian Liu, Yonghua Chen","doi":"10.1016/j.apsusc.2026.167661","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.167661","url":null,"abstract":"Although interfacial solar evaporation presents a viable approach to alleviate water scarcity, the absence of cost-effective and scalable evaporators remains a critical barrier to implementation. Herein, we developed an economically scalable sponge-based evaporator (CAP) with multiscale gradient pores and lowered enthalpy for solar-powered water production via efficient steam generation. CAP was fabricated by cross-linking ultralow-cost carbon black (CB) into a sponge framework using sodium alginate-Ca<ce:sup loc=\"post\">2</ce:sup>⁺, where the CB serves as the photothermal conversion material. Under 1 kW m⁻<ce:sup loc=\"post\">2</ce:sup> irradiation, CAP achieved an exceptional evaporation rate of 1.69 kg m⁻<ce:sup loc=\"post\">2</ce:sup>h⁻<ce:sup loc=\"post\">1</ce:sup> with a photothermal conversion efficiency of 96.2%. This outstanding performance originates from the synergistic effect between CB’s excellent broadband light absorption and the sponge framework ’s unique gradient pore structure. Particularly, an optimized CB/SA mass ratio of 0.8:1 successfully constructed hierarchical capillary networks enabling efficient water transport and low evaporation enthalpy. Mechanical tests and cycling experiments confirmed CAP’s structural stability. Furthermore, the evaporator demonstrated superior performance in seawater desalination, heavy metal removal, and organic dye wastewater purification. These findings indicate that CAP possesses significant application potential, providing a feasible pathway toward scalable implementation of solar evaporation technology.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"59 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148356498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Deep learning potential–driven insights into CF4 plasma etching of surface-terminated Si (0001) face of 4H-SiC 深度学习潜力驱动的CF4等离子体蚀刻4H-SiC表面端Si（0001）面的研究

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2026-06-23 DOI: 10.1016/j.apsusc.2026.167653

Yuncai Jiang, Zixian Li, Delin Kong, Shuangying Lei, Zaifa Zhou

{"title":"Deep learning potential–driven insights into CF4 plasma etching of surface-terminated Si (0001) face of 4H-SiC","authors":"Yuncai Jiang, Zixian Li, Delin Kong, Shuangying Lei, Zaifa Zhou","doi":"10.1016/j.apsusc.2026.167653","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.167653","url":null,"abstract":"Understanding the etching mechanisms of silicon carbide (SiC) is crucial for the development of high-precision plasma-based microfabrication. In this work, A deep potential model was constructed to simulate CF<ce:inf loc=\"post\">4</ce:inf> plasma etching of the terminated Si (0001) face of 4H-SiC. The effects of key parameters such as CF<ce:inf loc=\"post\">4</ce:inf> incident energy, incidence angle, O/H ratio, and etching duration on the overall etching behavior were systematically investigated. The research results reveal that surface terminations strongly affect cluster formation and etching efficiency, with –OH terminations inducing early cluster formation and –F-OH terminations slightly delaying it. The optimal O:H ratio for efficient etching is identified as 1:1 at a total fraction of 25%, balancing the formation of reactive species while minimizing inhibitory clusters. Extended etching simulations demonstrate that excessive oxygen or hydrogen would result in large oxygen-rich clusters or leave unreacted carbon chains, both of which hinder etching. Furthermore, density functional theory calculations indicate that hydrogen-containing clusters exhibit more positive adsorption energies and readily decompose into smaller fragments, facilitating cluster removal and sustaining active surface sites, thereby stabilizing and enhancing etching efficiency. This study provides a mechanistic understanding of 4H-SiC plasma etching and highlights the critical roles of surface terminations.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"54 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148312120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Structure and etching behavior of metallic-target sputtered α-MoO3 interlayers for piezotronic ZnO thin film transfer 压电ZnO薄膜转移金属靶溅射α-MoO3中间层的结构和刻蚀行为

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2026-06-23 DOI: 10.1016/j.apsusc.2026.167635

Yeomin Yoon, Minsu Kang, Sanghun Kim, Sua Han, Hae Jin Kim, Hyun Ho Lee, Dong Hun Kim

{"title":"Structure and etching behavior of metallic-target sputtered α-MoO3 interlayers for piezotronic ZnO thin film transfer","authors":"Yeomin Yoon, Minsu Kang, Sanghun Kim, Sua Han, Hae Jin Kim, Hyun Ho Lee, Dong Hun Kim","doi":"10.1016/j.apsusc.2026.167635","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.167635","url":null,"abstract":"We investigated the growth and etching behaviors of α-MoO<ce:inf loc=\"post\">3</ce:inf> thin films deposited from a metallic Mo target using direct current sputtering to scale up for low-cost and large-area device manufacturing. These films act as sacrificial layers, enabling high-quality oxide film deposition at elevated temperatures and being selectively etchable in water. Surface morphology and crystallinity of α-MoO<ce:inf loc=\"post\">3</ce:inf> thin films depend strongly on deposition conditions. To achieve strong piezoelectric polarization, preferentially oriented ZnO thin films along the [0002] direction were deposited on<ce:hsp sp=\"0.25\"></ce:hsp>α-MoO<ce:inf loc=\"post\">3</ce:inf> sacrificial layers at high temperatures. However, deposition above 560 °C caused interfacial reactions that led to secondary phase formation and α-MoO<ce:inf loc=\"post\">3</ce:inf>, depletion, hindering transfer processes. Minimizing these reactions enabled successful transfer of ZnO films onto flexible substrates via environmentally friendly water-assisted etching. Charge carrier transport in transferred ZnO thin films with maintained unidirectional growth onto flexible substrates could be modulated by applied external strain and the mechanism was discussed in terms of the piezotronic effect. These results demonstrate that sputter-grown α-MoO<ce:inf loc=\"post\">3</ce:inf> thin films can serve as effective, water-etchable sacrificial layers for high-temperature deposition and transfer of functional oxide films with high crystallinity, paving the way for durable and high-performance flexible electronic devices.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"38 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148312162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Formation and protection of an Eu-Ir surface compound below hexagonal boron nitride 六方氮化硼下Eu-Ir表面化合物的形成与保护

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2026-06-22 DOI: 10.1016/j.apsusc.2026.167568

Alaa Mohammed Idris Bakhit, Khadiza Ali, Anna A. Makarova, Frederik Schiller

{"title":"Formation and protection of an Eu-Ir surface compound below hexagonal boron nitride","authors":"Alaa Mohammed Idris Bakhit, Khadiza Ali, Anna A. Makarova, Frederik Schiller","doi":"10.1016/j.apsusc.2026.167568","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.167568","url":null,"abstract":"The intercalation of europium (Eu) offers an opportunity to tailor magnetic and electronic properties at interfaces, yet its behavior beneath protective 2D overlayers remains poorly understood. Here, Eu intercalation below a monolayer of hexagonal boron nitride (hBN) on Ir(111) was systematically investigated by varying the Eu deposited amount and substrate temperature. Eu was chosen for its tunable valence state and potential for ferromagnetic ordering. The structural and electronic properties were examined using low-energy electron diffraction (LEED), scanning tunneling microscopy (STM), X-ray photoelectron spectroscopy (XPS), and angle-resolved photoemission spectroscopy (ARPES). Three superstructures were identified with respect to Ir(111) substrate by LEED: (5 <mml:math altimg=\"si77.svg\" display=\"inline\"><mml:mo>×</mml:mo></mml:math><mml:math altimg=\"si78.svg\" display=\"inline\"><mml:mi>M</mml:mi></mml:math>) superstructure at 0.12 ML surface coverage, preserving the hBN/Ir(111) Moiré pattern with unidirectional Eu ordering; (5 × 2) superstructure at 0.9 ML where excess Eu adopts a tri-valent state and forms an alloy with Ir; and <mml:math altimg=\"si3.svg\" display=\"inline\"><mml:mrow><mml:mrow><mml:mo>(</mml:mo><mml:msqrt><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msqrt><mml:mo>×</mml:mo><mml:msqrt><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msqrt><mml:mo>)</mml:mo></mml:mrow><mml:mi>R</mml:mi><mml:mn>30</mml:mn><mml:mo>°</mml:mo></mml:mrow></mml:math> superstructure at the highest preparation temperature and 0.3 ML consistent with 2D surface phase EuIr<ce:inf loc=\"post\">2</ce:inf> alloy formation with di-valent Eu. The intercalation pathway is attributed to grain boundaries and structural defects in the hBN overlayer, emphasizing hBN quality in controlling intercalation. The protective role of the hBN layer was evaluated by air exposure, resulting in a 20% protection.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"23 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148311785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Electrostatic and ionic shielding of Ag nanowires by graphene nanoscrolls for electrochemical applications 石墨烯纳米卷对银纳米线静电和离子屏蔽的电化学应用

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2026-06-21 DOI: 10.1016/j.apsusc.2026.167614

Sudais Ahmed, Tingyi Wang, Weijie Tang, Haitao Huang, Shuhong Lin, Sheng Lin, Chunyang Miao, Kaushik Mallick, Linfei Lai

{"title":"Electrostatic and ionic shielding of Ag nanowires by graphene nanoscrolls for electrochemical applications","authors":"Sudais Ahmed, Tingyi Wang, Weijie Tang, Haitao Huang, Shuhong Lin, Sheng Lin, Chunyang Miao, Kaushik Mallick, Linfei Lai","doi":"10.1016/j.apsusc.2026.167614","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.167614","url":null,"abstract":"Silver nanowires (AgNWs) have been extensively investigated as key candidates for emerging next-generation flexible electronics. However, the large surface area of AgNWs networks renders them vulnerable to corrosion, oxidation and thermally induced coalescence, limiting their practical applications. Here, an organic solvent-assisted lyophilization (OSAL) strategy is developed to induce the self-assembly of reduced graphene oxide rGO into reel-like nanostructures (rGONS) with AgNWs encapsulated to form a robust Ag@rGONS hybrid architecture. The confinement provided by rGO effectively suppresses AgNWs oxidation and coalescence which endows Ag@rGONS composite enhanced thermal stability and corrosion resistance. Multiphysics simulations further reveal that the conductive rGONS shell acts as an electrostatic and ionic shield, redistributing the interfacial electric field and inhibiting chloride-ion accumulation on the Ag surface, thereby reducing the driving force for anodic dissolution. Ag@rGONS has shown superior resistance against thermal and humidity-induced degradation with 3% resistance increase compared to 42% for pristine AgNWs, and maintains stable electrochemical performance over 800 cycles without detectable oxidation. Moreover, a supercapacitor fabricated from Ag@rGONS, PEDOT:PSS and carbon black delivers 94.4% of its initial capacitance after 2000 cycles. This work demonstrates a versatile strategy for stabilizing metal nanomaterials in 2D nanoscrolls for flexible electronics.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"103 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148311789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Volatile acid doping of PEDOT:PSS enhances photovoltaic performance in organic solar cells 挥发性酸掺杂PEDOT:PSS提高了有机太阳能电池的光伏性能

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2026-06-20 DOI: 10.1016/j.apsusc.2026.167610

Xianpeng Meng, Zhaoming Zhang, Aisheng Wang, Guanghao Wei, Jiwei Li, Chenlong Dong, Cheng Qian, Xin Zhang, Jianan Zhang, Xuan Chang, Liguo Zhang, Chenghang Zhao, Jiang He, Jing Guo, Tingwei He, Dehua Yang, Jianhui Chen, Xuning Zhang

{"title":"Volatile acid doping of PEDOT:PSS enhances photovoltaic performance in organic solar cells","authors":"Xianpeng Meng, Zhaoming Zhang, Aisheng Wang, Guanghao Wei, Jiwei Li, Chenlong Dong, Cheng Qian, Xin Zhang, Jianan Zhang, Xuan Chang, Liguo Zhang, Chenghang Zhao, Jiang He, Jing Guo, Tingwei He, Dehua Yang, Jianhui Chen, Xuning Zhang","doi":"10.1016/j.apsusc.2026.167610","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.167610","url":null,"abstract":"Poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) is a widely used hole-transport layer in organic solar cells (OSCs), yet its performance is often constrained by an insulating PSS-rich surface and a high density of interfacial traps that limit charge extraction. Herein, we report a mild interfacial engineering strategy using a volatile acid, bis(trifluoromethanesulfonyl)imide (BisTS), to modulate the surface composition, electronic structure, and interfacial properties of PEDOT:PSS. During film formation, BisTS disrupts the strong electrostatic coupling between PEDOT and PSS chains, inducing a surface reconstruction from a PSS-rich to a PEDOT-rich state. This reconstruction reduces surface polarity and lowers the interfacial trap density, as evidenced by X-ray photoelectron spectroscopy and electrical measurements. Meanwhile, the volatile nature of BisTS ensures minimal residual dopant after thermal annealing. Ultraviolet photoelectron spectroscopy reveals an optimized work function alignment with the photoactive layer, facilitating hole extraction. Consequently, BisTS-modified devices achieve a power conversion efficiency of 18.16% with a fill factor of 77.51%, representing a notable improvement over the control device (17.05%). This work establishes volatile acid doping as an effective and residue-free approach for interfacial modulation in organic photovoltaics, offering new insights into the rational design of conductive polymer interfaces.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"17 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148311793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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