ACS Applied Nano Materials最新文献

{"title":"Self-Delivery Nanomedicine for Targeted Antibacterial and Anti-inflammatory Therapy of Subcutaneous Skin Infection","authors":"Jinxiu Liu,&nbsp;Wei He,&nbsp;Zhongjia Liu,&nbsp;Hangfei He,&nbsp;Huixuan Gan,&nbsp;Min Hu,&nbsp;Xiaolei Zhao,&nbsp;Guolie Xie,&nbsp;Bingcheng Chang* and Ning Guo*,&nbsp;","doi":"10.1021/acsanm.4c0658510.1021/acsanm.4c06585","DOIUrl":"https://doi.org/10.1021/acsanm.4c06585https://doi.org/10.1021/acsanm.4c06585","url":null,"abstract":"<p >Antibiotic treatment for bacterial infections is often hindered by low bioavailability and significant side effects. Meanwhile, the excessive production of reactive oxygen species (ROS) in infectious sites exacerbates tissue damage and delays the wound healing progress. Nanomedicine offers a promising solution through enhancing antibiotic delivery and scavenging harmful ROS. Herein, we prepare a carrier-free antibacterial nanomedicine (termed as NEP) based on the self-assembly of nitrofural (NIT), epigallocatechin-3-gallate (EGCG), and phenylboric acid (PBA) via noncovalent bonds and formation of borate ester bonds between EGCG and PBA. NEP improves the biosafety and bioavailability of NIT and EGCG, while PBA enhances bacterial targeting. Moreover, NEP ensures the release of NIT to kill bacteria and EGCG to mitigate oxidative stress at the infection sites. Both in vitro and in vivo assays demonstrate the enhanced sterilization and anti-inflammatory effect of NEP. Therefore, the integration of NIT, EGCG, and PBA in a self-delivery system synergistically improves the antibacterial efficacy of NIT, anti-inflammatory capacity of EGCG, and bioavailability of both drugs, which offers a safer and more efficient treatment for subcutaneous skin infections.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 13","pages":"6288–6300 6288–6300"},"PeriodicalIF":5.3,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143767168","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}

{"title":"Ultraviolet to Near-Infrared Polarization-Sensitive Photodetectors Based on (Phenethylammonium)2PbI4/PdSe2 Nanosheet Heterojunctions","authors":"Haiting Zhang,&nbsp;Wenyao Wu,&nbsp;Xuanqi Zhong,&nbsp;Ruihuan Zhang,&nbsp;Chaoyang Li,&nbsp;Tianchen Ji,&nbsp;Liping Liu,&nbsp;Xiaoxian Song*,&nbsp;Zhang Zhang*,&nbsp;Ning Chen,&nbsp;Jingjing Zhang,&nbsp;Zijie Dai,&nbsp;Yunxia Ye,&nbsp;Xudong Ren and Jianquan Yao,&nbsp;","doi":"10.1021/acsanm.4c0723310.1021/acsanm.4c07233","DOIUrl":"https://doi.org/10.1021/acsanm.4c07233https://doi.org/10.1021/acsanm.4c07233","url":null,"abstract":"<p >Two-dimensional (2D) Ruddlesden–Popper perovskites have demonstrated significant potential in high-performance optoelectronic devices due to their exceptional optoelectronic properties and remarkable stability. However, research on photodetection in 2D perovskite/PdSe₂ nanosheet heterojunction structures remains limited. In this work, a stable photodetector with high responsivity based on a heterostructure of 2D perovskite (PEA)₂PbI₄ and PdSe₂ nanosheets is demonstrated. The device performance reveals that photodetectors fabricated with 191 nm-thick (PEA)₂PbI₄ and 2.5 nm-thick PdSe₂ nanosheets provide broadband detection from ultraviolet to near-infrared regions and offer tunable photoresponse profiles. Specifically, under 532 nm illumination and a 1 V bias, the device achieves a responsivity of 1.81 A/W and a specific detectivity of 5.53 × 10¹¹ Jones. The device also demonstrates ultrafast transient response speeds at the microsecond scale, outperforming a single PdSe₂ nanosheet by approximately 2 orders of magnitude. Furthermore, it maintains excellent stability with less than 5% photocurrent degradation after continuous cycling over thousands of illumination cycles. Notably, owing to the in-plane lattice asymmetry of PdSe₂, the device exhibits high sensitivity to linearly polarized visible light, achieving linear dichroism ratios (<i>I</i>_max/<i>I</i>_min) of 1.05 and 1.12 at 405 and 532 nm, respectively. The capability of linear polarization imaging at visible wavelengths was achieved through the self-constructed imaging platform. This work holds significant implications for advancing research in 2D material heterojunctions, nanomaterial-based optoelectronics, and high-performance photodetectors.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 13","pages":"6350–6360 6350–6360"},"PeriodicalIF":5.3,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143767408","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}

{"title":"Experimental and Theoretical Study of the Electronic Structure and Optical and Mechanical Properties of Th3P4-Type Hf3N4 Thin Films for Applications in Infrared Windows","authors":"Yuhe Liu,&nbsp;Kunlun Wang,&nbsp;Xuesi Zhang,&nbsp;Xiqiang Yin and Yong Wang*,&nbsp;","doi":"10.1021/acsanm.5c0050810.1021/acsanm.5c00508","DOIUrl":"https://doi.org/10.1021/acsanm.5c00508https://doi.org/10.1021/acsanm.5c00508","url":null,"abstract":"<p >Although the metastable phases of group IVB nitrides (M₃N₄, M = Ti, Zr, or Hf) are highly desirable, since they were predicted to have unique semiconducting and exceptional mechanical properties, the challenge in their fabrication still hampered the research and applications. In this work, we have successfully synthesized Th₃P₄-type Hf₃N₄ nanocrystalline thin films by high-power impulse magnetron sputtering and have conducted a joint experimental and theoretical study to investigate the electronic structure and optical and mechanical properties. We experimentally find that Th₃P₄-type Hf₃N₄ has a direct bandgap of about 2.53 eV, which is consistent with the theoretical value of 2.25 eV calculated by the Heyd-Scuseria-Ernzerhof (HSE06) functional. Its unique infrared optical properties of high transmittance (&gt;98%) and relatively low refractive index (∼2.5) enable it to serve as the antireflection film for Si infrared windows. Meanwhile, both experimental and computational results show that Th₃P₄-type Hf₃N₄ possesses high hardness (∼21 GPa) and exhibits notable mechanical isotropy. Additionally, Th₃P₄-type Hf₃N₄ thin films possess excellent hydrophobicity and good thermal stability. These superior properties make Th₃P₄-type Hf₃N₄ a promising candidate as an antireflective and protective coating for Si infrared windows. This work paves a way for the low-cost preparation of metastable Th₃P₄-type Hf₃N₄ nanocrystalline thin films and further promotes the understanding of promising Th₃P₄-type Hf₃N₄.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 13","pages":"6671–6678 6671–6678"},"PeriodicalIF":5.3,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143767406","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}

{"title":"Nanoporous Perfluoroalkyl and Sulfonic Acid-Functionalized Covalent Organic Frameworks with Enhanced Proton Conduction for Proton-Exchange-Membrane Fuel Cells","authors":"Yihan Du,&nbsp;Yiming Yang,&nbsp;Zhen Shan,&nbsp;Xuran Xu*,&nbsp;Hao Xu,&nbsp;Boying He,&nbsp;Yichen Liu,&nbsp;Xue Zhang,&nbsp;Bingqing Xu* and Gen Zhang*,&nbsp;","doi":"10.1021/acsanm.5c0084010.1021/acsanm.5c00840","DOIUrl":"https://doi.org/10.1021/acsanm.5c00840https://doi.org/10.1021/acsanm.5c00840","url":null,"abstract":"<p >The proton-conducting materials serve as the key components of proton-exchange membrane fuel cells, significantly influencing their overall practical performance. Nafion is the predominant commercial proton-conducting material, known for its superior proton conductivity. However, its practical use is limited by high costs, disordered nanoscale pores, and restricted thermal stability. In this contribution, we developed a bottom-up self-assembly strategy to construct perfluoroalkyl- and sulfonic acid-functionalized covalent organic frameworks (COFs) using hydrazine ligation. The effects of fluorine chains of varying lengths on hydrophobicity and proton conductivity were systematically investigated. COF-F<i>x</i>-SO₃ exhibits a Nafion-like structure, enabling proton conduction through its nanoscale ordered channels. At a 97% relative humidity (RH) and 90 °C, the highest intrinsic proton conductivity is 7.7 × 10^–3 S cm^–1, which significantly surpasses that of nonfluorinated COFs. Moreover, the anhydrous proton conductivity of fluorinated COFs at 140 °C reaches 1.93 × 10^–2 S cm^–1 after doping with phosphoric acid, which is 1 orders of magnitude higher than that of nonfluorinated COFs. This work illustrates the practical feasibility of the nanoconfined effect in enhancing proton conduction and highlights the potential of Nafion-like COFs as proton-conducting materials.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 13","pages":"6747–6754 6747–6754"},"PeriodicalIF":5.3,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143767407","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}

{"title":"High-Throughput Preparation of Size-Tunable BiFeO3 Nanoislands with Topological Polar Structures for High-Density Memory","authors":"Wenhai Zhao,&nbsp;Mi Zhao,&nbsp;Jianbo Ding,&nbsp;Tong Zhang,&nbsp;Yang He,&nbsp;Jiyang Xie,&nbsp;Liang Wu,&nbsp;Wanbiao Hu,&nbsp;Qingming Chen and Ji Ma*,&nbsp;","doi":"10.1021/acsanm.5c0033310.1021/acsanm.5c00333","DOIUrl":"https://doi.org/10.1021/acsanm.5c00333https://doi.org/10.1021/acsanm.5c00333","url":null,"abstract":"<p >Topological polar structures found in ferroelectric nanoislands hold great promise for next-generation information storage devices due to their unique properties and potential for high-density data storage. However, traditional fabrication methods, such as electron-beam lithography, face significant challenges in achieving reproducibility and consistent domain structures with low cost, limiting their practical application. In this study, we proposed a high-throughput synthesis approach to enhance the research efficiency of topological ferroelectric domains in BiFeO₃ nanoislands. By designing a temperature gradient during the film growth process, we successfully obtained self-assembled BiFeO₃ nanoislands with various sizes (150–800 nm) as well as domain structures featuring temperature gradients. The topological ferroelectric domain configurations evolve gradually from Solomon rings-like to 4-fold, and eventually, multifold center-type domain with the nanoisland size increasing, while the smaller nanoisland shows a higher conduction. Our findings reveal the relationships between temperature, size, density, and ferroelectric domain configuration, providing valuable insights into the formation and growth mechanisms of BiFeO₃ nanoislands and precise control of topological ferroelectric domains.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 13","pages":"6583–6590 6583–6590"},"PeriodicalIF":5.3,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143767412","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}

{"title":"Ruthenium-Based Nanoplatform for Glioblastoma Multiforme Therapy: Synergistic Photothermal/Photodynamic Effects Combined with Ferroptosis and Endoplasmic Reticulum Stress","authors":"Ganfeng Li,&nbsp;Bin Deng,&nbsp;Lianghao Huang,&nbsp;Ping Fan,&nbsp;Fengyu Yin,&nbsp;Yixuan Tang,&nbsp;Xingdao Fu,&nbsp;Yurong Huang,&nbsp;Xi Yang,&nbsp;Qixing Tan*,&nbsp;Gang Huang* and Xing Chen*,&nbsp;","doi":"10.1021/acsanm.4c0730110.1021/acsanm.4c07301","DOIUrl":"https://doi.org/10.1021/acsanm.4c07301https://doi.org/10.1021/acsanm.4c07301","url":null,"abstract":"<p >Glioblastoma multiforme (GBM) is difficult to surgically remove, leading to a high recurrence risk. Phototherapy targets residual cells postsurgery; however, the photosensitizers with low molar absorption coefficients and susceptibility to photodegradation attenuated the phototherapeutic efficacy. The treatment effectiveness for GBM has been limited owing to tumor heterogeneity and drug resistance; it is urgently needed to develop an effective chemotherapy strategy to improve the median survival of GBM patients. Herein, a multifunctional phototherapy nanoplatform (Fe₃O₄@PDA@Ru) has been developed, where iron oxide nanoparticles (Fe₃O₄) serve as the core and polydopamine (PDA) and methoxy polyethylene glycol amine (mPEG-NH₂) as the shell, loaded with a Ru-based photosensitizer ([Ru(bpy)₂(PYIP)]Cl₂). Fe₃O₄@PDA@Ru could generate singlet oxygen and a stable photothermal effect under irradiation. Fe₃O₄@PDA@Ru underwent internalization via clathrin-dependent and caveolae-mediated endocytic pathways, with subsequent multiorganelle localization in the cytoplasm. Fe₃O₄@PDA@Ru synergistically inhibited tumor growth and activated ferroptosis and endoplasmic reticulum (ER) stress by inactivation of glutathione peroxidase 4 (GPX4), consumption of glutathione (GSH), accumulation of lipid peroxide, and upregulation of activating transcription factor 6 (ATF6). These findings offered a promising strategy to enhance PTT and PDT by promoting ferroptosis and ER stress in GBM therapy.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 13","pages":"6391–6402 6391–6402"},"PeriodicalIF":5.3,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143767431","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}

{"title":"First-Principles Investigation of MoS2/MoSe2-Janus XMoSiZ2 (X = S, Se, Te; Z = N, P) Heterostructures as Photocatalysts for Water Splitting","authors":"Yuan Zhao,&nbsp;Zheng Dai,&nbsp;Xixi Jia and Lina Bai*,&nbsp;","doi":"10.1021/acsanm.5c0026610.1021/acsanm.5c00266","DOIUrl":"https://doi.org/10.1021/acsanm.5c00266https://doi.org/10.1021/acsanm.5c00266","url":null,"abstract":"<p >Developing photocatalysts is one of the effective approaches to improve the production efficiency of renewable hydrogen energy. Based on density functional theory, the potential of MoS₂/MoSe₂-Janus XMoSiZ₂ (X = S, Se, Te; Z = N, P) van der Waals (vdW) heterostructures as photocatalysts is predicted. The MoS₂–TeMoSiN₂ (S–Te), MoSe₂–SMoSiP₂ (Se–S), and MoSe₂–SeMoSiP₂ (Se–Se) heterostructures exhibit a Z-type charge transfer mechanism, with a broad light absorption range, high solar-to-hydrogen conversion efficiency, and carrier mobility. Meanwhile, the S–Te heterostructure can spontaneously and stably catalyze water splitting, demonstrating its potential as a high-performance photocatalyst. For the heterostructure composed of a Janus monolayer, the interface coupling characteristics can be effectively modulated by regulating the intrinsic and interfacial dipole, as well as the interfacial atomic electronegativity difference. The findings suggest that MoS₂/MoSe₂-Janus XMoSiZ₂ vdW heterostructures are potential high-performance photocatalysts and provide critical theoretical support for the analysis of interfacial characteristics of heterostructures containing the Janus monolayer.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 13","pages":"6563–6574 6563–6574"},"PeriodicalIF":5.3,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143767434","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}

{"title":"Nanofibrillar, Heteroatom-Rich Triphenylamine-Based Conjugated Microporous Polymers for Selective Dye Capture and Iodine Uptake","authors":"Soumitra Sau,&nbsp;Sibu Manna,&nbsp;Suman Karmakar,&nbsp;Krishnendu Maity and Suman Kalyan Samanta*,&nbsp;","doi":"10.1021/acsanm.5c0057010.1021/acsanm.5c00570","DOIUrl":"https://doi.org/10.1021/acsanm.5c00570https://doi.org/10.1021/acsanm.5c00570","url":null,"abstract":"<p >Developing effective materials for eliminating harmful contaminants is crucial for environmental remediation. In this study, we explore two triphenylamine-based conjugated microporous polymers, <b>PTPA-IDT</b> and <b>PTPA-DMQ</b>, by incorporating <i>s</i>-indaceno[1,2-<i>b</i>:5,6-<i>b</i>′]-dithiophene-4,9-dione (IDT) and <i>N</i>,<i>N</i>-dimethyl quinacridone (DMQ) units into the polymer backbone for the first time, which serve as an efficient multifunctional platform for the adsorption of dyes and iodine. By altering the core building block, we successfully tuned their porous properties and morphological features which in turn enhanced their adsorption capabilities. <b>PTPA-IDT</b>, characterized by its nanofiber-like morphology and higher surface area, demonstrated impressive removal capabilities for methylene blue (<b>MB</b>) and rhodamine B (<b>RhB</b>) dyes from polluted water, achieving maximum adsorption capacities of 241.5 mg/g and 125.3 mg/g, respectively. Interestingly, <b>PTPA-DMQ</b> demonstrates rapid adsorption kinetics for <b>MB</b> with a pseudo-first-order rate constant of 0.031 s^–1 and exhibits remarkable selectivity for <b>MB</b> over <b>RhB</b> in a mixture, as supported by DFT calculations revealing that <b>RhB</b> adsorption is thermodynamically unfavorable. Furthermore, both CMPs effectively removed iodine vapor, showcasing a promising iodine uptake capacity of 3.87 and 3.24 g/g for <b>PTPA-IDT</b> and <b>PTPA-DMQ</b>, respectively. Recyclability tests revealed that the CMPs exhibit excellent reusability for the dyes and iodine adsorption, maintaining their adsorption capability effectively through the sixth cycle without significant loss. Our findings indicate that these low-cost, metal-free synthetic CMPs hold significant potential for treating polluted water and capturing iodine effectively.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 13","pages":"6692–6702 6692–6702"},"PeriodicalIF":5.3,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143767413","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}

{"title":"Hollow CoFeSe Nanocubes Supported on NiCoSe Nanosheet-Decorated Ni Foam as Electrocatalysts for Water Splitting","authors":"Mengyuan Xie,&nbsp;Hui Ding,&nbsp;Tingting Huang,&nbsp;Juan Xiao,&nbsp;Ying Wang,&nbsp;Li Zhang* and Guancheng Xu*,&nbsp;","doi":"10.1021/acsanm.5c0042410.1021/acsanm.5c00424","DOIUrl":"https://doi.org/10.1021/acsanm.5c00424https://doi.org/10.1021/acsanm.5c00424","url":null,"abstract":"<p >Transition metal selenides (TMSes) derived from Prussian blue analogues (PBAs) exhibit significant potential as electrocatalysts in water electrolysis. Nevertheless, their low active site utilization, insufficient catalytic activity, and poor stability severely constrain their practical application. In this study, two-dimensional (2D) NiCo-layered double hydroxide (LDH) grown on nickel foam (NF) was employed as the support, and three-dimensional (3D) hollow CoFe PBA was synthesized on its surface via a one-step method. After selenization, a bimetallic selenide (Co₂Fe)Se₄/(CoNi)(Se₂)₂/NF hollow nanocubes (CoFeSe/NiCoSe/NF-H) with a heterointerface and multilevel structure was successfully prepared. Due to the electron transfer mechanism at the heterointerface and the full exposure of active sites facilitated by the hierarchical structure, CoFeSe/NiCoSe/NF-H exhibits efficient bifunctional electrocatalytic activities for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) with overpotentials of 82 mV (η₁₀) and 288 mV (η₁₀₀) in 1 M KOH, respectively. Additionally, it achieves a current density of 10 mA cm^–2 at 1.52 V during the overall water splitting. The study presents a valuable approach to enhancing the performance of PBA-derived nanoscale electrocatalytic materials through heterostructure formation and morphology engineering.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 13","pages":"6626–6634 6626–6634"},"PeriodicalIF":5.3,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143767411","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}

{"title":"Directly Laser-Patterned TiSe2–TiO2 Lateral-Junction for High-Performance Ultraviolet Photodetection","authors":"Guangjian Liu,&nbsp;Jinzhi Luo,&nbsp;Huifeng Zhang,&nbsp;Linfeng Fei,&nbsp;Jiaren Yuan,&nbsp;Xiaxia Liao* and Yangbo Zhou*,&nbsp;","doi":"10.1021/acsanm.5c0027810.1021/acsanm.5c00278","DOIUrl":"https://doi.org/10.1021/acsanm.5c00278https://doi.org/10.1021/acsanm.5c00278","url":null,"abstract":"<p >Two-dimensional (2D) ultraviolet (UV) photodetectors have attracted enormous interest due to their potential applications in the wide fields of biology, healthcare, and space science. Here, by applying a focused laser beam for direct patterning, we demonstrate local oxidation in metallic 1T TiSe₂ that converts it to rutile TiO₂, a wide band gap semiconductor. The formed TiSe₂–TiO₂ lateral heterojunction can act as a photodetector, exhibiting high responsivity (&gt;180 A/W) in the UV wavelength region. Furthermore, we observe a superlinear photoresponse in such demonstrated photodetector. Our work provides a methodology to build high-performance 2D photodetectors using focused laser irradiation, thus enriching the methods available for developing prototypes of low-dimensional optoelectronic devices in the future.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 12","pages":"6106–6114 6106–6114"},"PeriodicalIF":5.3,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143714095","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}