NanotechnologyPub Date : 2025-03-27DOI: 10.1088/1361-6528/adc608
Francesco Amato, Martina Fazi, Leonardo Giaccari, Sara Colecchia, Giordano Perini, Valentina Palmieri, Massimiliano Papi, Pietro Altimari, Alessandro Motta, Mauro Giustini, Robertino Zanoni, Andrea Giacomo Marrani
{"title":"Isolation by dialysis and characterization of luminescent oxidized carbon nanoparticles from graphene oxide dispersions: A facile novel route towards a more controlled and homogeneous substrate with a wider applicability.","authors":"Francesco Amato, Martina Fazi, Leonardo Giaccari, Sara Colecchia, Giordano Perini, Valentina Palmieri, Massimiliano Papi, Pietro Altimari, Alessandro Motta, Mauro Giustini, Robertino Zanoni, Andrea Giacomo Marrani","doi":"10.1088/1361-6528/adc608","DOIUrl":"https://doi.org/10.1088/1361-6528/adc608","url":null,"abstract":"<p><p>Graphene Oxide (GO) is a two-dimensional (2D) nanomaterial largely exploited in many fields. Its preparation, usually performed from graphite in an oxidant environment, generally affords two-dimensional layers with a broad size distribution, with overoxidation easily occurring.
Here, we investigate the formation, along the Hummers synthesis of GO, of carbon nanoparticles isolated from GO and characterized through morphological and spectroscopic techniques. The purification methodology here applied is based on dialysis and results highly advantageous, since it does not involve chemical processes, which may lead to modifications in the composition of GO layers. Using a cross-matched characterization approach among different techniques, such as XPS, cyclic voltammetry and fluorescence spectroscopy, we demonstrate that the isolated carbon nanoparticles are constituted by layers that are highly oxidized at the edges and are stacked due to π-π interaction among their aromatic basal planes and H-bonded via their oxidized groups. These results, while representing a step forward in the comprehension of the structure of long-debated carbon debris in GO, strongly point to the introduction of dialysis as an indispensable step toward the preparation of more controlled and homogeneous GO layers and to its use for the valorization of low molecular weight GO species as luminescent carbon nanoparticles.
.</p>","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143730995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NanotechnologyPub Date : 2025-03-27DOI: 10.1088/1361-6528/adc00c
Aswin L N Kondusamy, Wenhao Liu, Joy Roy, Xiangyu Zhu, Connor V Smith, Xinglu Wang, Chadwin Young, Moon J Kim, Robert M Wallace, William G Vandenberghe, Bing Lv
{"title":"Bismuth oxychloride as a<i>van der Waals</i>dielectric for 2D electronics.","authors":"Aswin L N Kondusamy, Wenhao Liu, Joy Roy, Xiangyu Zhu, Connor V Smith, Xinglu Wang, Chadwin Young, Moon J Kim, Robert M Wallace, William G Vandenberghe, Bing Lv","doi":"10.1088/1361-6528/adc00c","DOIUrl":"10.1088/1361-6528/adc00c","url":null,"abstract":"<p><p>Two-dimensional (2D) semiconductors have received a lot of attention as the channel material for the next generation of transistors and electronic devices. On the other hand, insulating 2D gate dielectrics, as possible materials for gate dielectrics in transistors, have received little attention. We performed an experimental study on bismuth oxychloride, which is theoretically proposed to have good dielectric properties. High-quality bismuth oxychloride single crystals have been synthesized, and their high single crystallinity and spatial homogeneity have been thoroughly evidenced by x-ray diffraction, Raman spectroscopy, x-ray photoelectron spectroscopy, transmission electron microscopy (TEM), and scanning TEM studies. We then mechanically exfoliated high-quality BiOCl crystals to fabricate metal-insulator-metal (MIM) capacitors and measured the dielectric properties at various frequencies and different thicknesses. We found that BiOCl exhibits an out-of-plane static dielectric constant up to 11.6, which is 3 times higher than 2D hexagonal boron nitride making it a suitable candidate for 2D dielectrics. We also carried out cross-section TEM studies to look into the MIM interface and provide some future directions for their integration with metal-dielectric interfaces and possibly with other 2D devices.</p>","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143624696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NanotechnologyPub Date : 2025-03-26DOI: 10.1088/1361-6528/adc555
Reem Mahmoud, François Gitzhofer, Nicolas Abatzoglou
{"title":"Micron Size Graphene Sheets Synthesis by Methane Pyrolysis in an RF-ICP Thermal Plasma Reactor.","authors":"Reem Mahmoud, François Gitzhofer, Nicolas Abatzoglou","doi":"10.1088/1361-6528/adc555","DOIUrl":"https://doi.org/10.1088/1361-6528/adc555","url":null,"abstract":"<p><p>Bottom-up synthesis of free-standing graphene using thermal plasma technology often results in flakes with smaller lateral dimensions (hundreds of nanometers) compared to top-down and substrate-based approaches (reaching centimeters in size) [1]. This limitation in size restricts the applicability of graphene in various applications. This study investigates a method to overcome this limitation by studying the reactor's quenching effect on the plasma plume exiting an RF-ICP thermal plasma torch. Local gas phase chemistry and graphene morphology were investigated during methane (CH4) pyrolysis in argon plasma. Natural quenching suppression led to a production of few-layer (2-5 layers), near-micrometer-sized un-supported graphene sheets (~2.8µm perimeter) with less crumpling and a projected area of (2-5)×105 nm². Raman, TEM, TGA, and XPS analysis confirmed the high quality of the synthesized graphene. Sp2 carbon composition in the sample was calculated using the D parameter obtained from the differentiated C KLL Auger peak in the XPS spectrum. A correlation between the gas phase chemistry and the graphene morphology demonstrated the significant effect of plasma reactor natural quenching and recirculation on the graphene synthesis and offers a potential for controlling the structure of unsupported graphene. The current study provides valuable insights that can pave the way for the development of reactors with a definite control over the morphology of synthesized graphene.
.</p>","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143710654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NanotechnologyPub Date : 2025-03-26DOI: 10.1088/1361-6528/adc582
Siti Noorhazirah Kamarudin, Kwan Yiew Lau, Noor Azlinda Ahmad, Nur Azalia Azrin, Chee Wei Tan, Nor Hidayah Rahim, Kuan Yong Ching, Ahmad Basri Abdul Ghani, Nur Amira Nor Arifin
{"title":"Influence of calcined nanomagnesia on the structure and dielectric properties of polypropylene/ethylene-octene copolymer blend.","authors":"Siti Noorhazirah Kamarudin, Kwan Yiew Lau, Noor Azlinda Ahmad, Nur Azalia Azrin, Chee Wei Tan, Nor Hidayah Rahim, Kuan Yong Ching, Ahmad Basri Abdul Ghani, Nur Amira Nor Arifin","doi":"10.1088/1361-6528/adc582","DOIUrl":"https://doi.org/10.1088/1361-6528/adc582","url":null,"abstract":"<p><p>Polymer blends have attracted significant research interest due to their potential use as power cable insulating materials. Specifically, polypropylene (PP) blends offer improved dielectric properties over conventional crosslinked polyethylene insulating materials attributable to PP's high melting temperatures, hence high rated voltages. Despite numerous promising findings have been reported regarding the potential application of PP blends as power cable insulating materials, there have been relatively less investigations into the dielectric effects of incorporating nanofillers into PP blends. The current work therefore explores the influence of calcined magnesia (MgO) nanofiller on the structure and dielectric properties of PP blended with ethylene-octene copolymer (EOC). Nanofiller-wise, calcination of MgO does not significantly affect the structure of MgO, albeit that water-related molecules are removed from MgO. Upon adding the calcined MgO to the PP/EOC blend, the breakdown performance of the PP/EOC/MgO blend nanocomposites becomes jeopardized, especially under the DC field. This is primarily attributed to the presence of residue water molecules within the PP/EOC/MgO blend nanocomposites, even after MgO calcination. Although the addition of the calcined MgO to the PP blend does not result in favorable dielectric properties, the findings suggest that nanostructuration of PP blends could be further explored to pave the way for the development of nanostructured PP blends for use in advanced power cable insulation applications.</p>","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143730990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NanotechnologyPub Date : 2025-03-26DOI: 10.1088/1361-6528/adc554
Mingming Du, Zheng Fang, Hongyue Liu, Qiyun Li, Anxian Peng, Huimei Chen, Yitong Liu, Jinwen Zhan, Rongjun Yan
{"title":"Significantly boosted photocatalytic hydrogen evolution by Pd-TiO2/ZnIn2S4 nanowires heterojunction under simulated sunlight.","authors":"Mingming Du, Zheng Fang, Hongyue Liu, Qiyun Li, Anxian Peng, Huimei Chen, Yitong Liu, Jinwen Zhan, Rongjun Yan","doi":"10.1088/1361-6528/adc554","DOIUrl":"https://doi.org/10.1088/1361-6528/adc554","url":null,"abstract":"<p><p>In this work, Pd-TiO2/ZnIn2S4 nanowires (Pd-Ti-Nws/ZIS) heterostructures catalysts were prepared and applied to photocatalytic hydrogen evolution under simulated sunlight. The results revealed that the hydrogen production rate of Pd-Ti-Nws-40/ZIS was as high as 66.62 mmol·g-1·h-1, which was 20.5 and 418 times as much as that of pure ZIS and Pd-Ti-Nws, respectively. After 5 cycles, the hydrogen production of the photocatalyst can still reach about 60 mmol within 120 min. According to the results of photochemistry and XPS, Pd-Ti-Nws/ZIS meets the S-scheme heterojunction system, which is beneficial to inhibit the recombination of photogenerated holes and electrons and increase carrier transport rate through the S-scheme heterojunction. Under light radiation, Pd-Ti-Nws is positively charged due to the accumulation of holes, and ZIS is negatively charged due to the accumulation of electrons with higher reducing power. Moreover, Pd nanoparticles obviously improve the response range and intensity of the catalyst to sunlight. Therefore, the photocatalytic hydrogen production rate obviously increased. This work provides a reasonable method for designing efficient catalysts for photocatalytic hydrogen production.</p>","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143710660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NanotechnologyPub Date : 2025-03-25DOI: 10.1088/1361-6528/adc4ee
Chen Zhang, Ruipeng Hou, Shufang Chang, Rong Wu, Shunhang Wei
{"title":"Bi4Ti3O12 nanosheets loaded with Rh as special cocatalysts enhancing visible-light driven water splitting activity of ZnIn2S4 nanosheets.","authors":"Chen Zhang, Ruipeng Hou, Shufang Chang, Rong Wu, Shunhang Wei","doi":"10.1088/1361-6528/adc4ee","DOIUrl":"https://doi.org/10.1088/1361-6528/adc4ee","url":null,"abstract":"<p><p>Cocatalysts generally serve as active sites accelerating carrier separation. However, when the hydrophilicity of photocatalyst itself is poor, the trapped electrons or holes on cocatalysts are difficult to react with reactants quickly. In this work, Bi4Ti3O12 nanosheets with excellent hydrophilicity was prepared and then thermally deposited Rh on their surface (Bi4Ti3O12(Rh)), and finally in-suit grew ZnIn2S4 on the surface of Bi4Ti3O12(Rh). Based on the results of photocatalytic performance and materials characterization, it was found that the Bi4Ti3O12(Rh) in the photocatalytic system could be considered as a special cocatalyst rather than formed heterojunction with the ZnIn2S4. Under visible-light irradiation, the Rh acted as an electron trapping site to conduct photogenerated electrons trapping from ZnIn2S4 to the surface of Bi4Ti3O12. This process not only further accelerated carrier separation, but also facilitated electrons reacting with water due to the excellent hydrophilicity of Bi4Ti3O12(Rh), thereby achieving enhanced photocatalytic H2 production performance in the absence of sacrificial agents.</p>","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143710313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NanotechnologyPub Date : 2025-03-25DOI: 10.1088/1361-6528/adc4f1
Elena Filonenko, Polina Kuzhir, Sergei Malykhin
{"title":"Fluorescence dynamics of color centers in diamond needles.","authors":"Elena Filonenko, Polina Kuzhir, Sergei Malykhin","doi":"10.1088/1361-6528/adc4f1","DOIUrl":"https://doi.org/10.1088/1361-6528/adc4f1","url":null,"abstract":"<p><p>This study presents a detailed investigation into the fluorescence properties of color centers in single-crystal diamond needles (SCDNs) synthesized via chemical vapor deposition. Using steady-state and time-resolved photoluminescence techniques, we identified color centers with zero-phonon lines at 389 nm, 468 nm, 575 nm (NV⁰), 637 nm (NV⁻), and 738 nm (SiV⁻).
Photoluminescence excitation spectroscopy conducted at room temperature revealed the complex electronic structure of some of these centers, paving the way for further investigation into their fluorescence properties. Lifetime measurements were performed for each center, with the 389 nm one exhibiting the longest decay time (~30 ns), which is advantageous for enhancing quantum coherence, improving photon emission efficiency, and reducing power consumption. Altogether, these findings highlight the potential of SCDNs for quantum applications and confirm their promise as a platform for next-generation photonic and quantum devices.
.</p>","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143710621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NanotechnologyPub Date : 2025-03-25DOI: 10.1088/1361-6528/adc4ed
Nguyen Nhat Anh Phan, Inayat Uddin, Hai Yen Le Thi, Nobuyuki Aoki, Hye Jung Kim, Kenji Watanabe, Takashi Taniguchi, Muhammad Atif Khan, Gil-Ho Kim
{"title":"Electrostatic control of transconductance oscillations in MoS<sub>2</sub>/WSe<sub>2</sub>heterostructure.","authors":"Nguyen Nhat Anh Phan, Inayat Uddin, Hai Yen Le Thi, Nobuyuki Aoki, Hye Jung Kim, Kenji Watanabe, Takashi Taniguchi, Muhammad Atif Khan, Gil-Ho Kim","doi":"10.1088/1361-6528/adc4ed","DOIUrl":"https://doi.org/10.1088/1361-6528/adc4ed","url":null,"abstract":"<p><p>The progression of quantum phenomena aligns closely with the miniaturization of nano-semiconductor transistors. This necessitates innovative quantum structures beyond traditional transistor types. Investigating electrostatically defined nanoscale devices within two-dimensional (2D) semiconductor heterostructures, particularly van der Waals heterostructures offers advantages like large-scale uniformity and flexibility. Here, we focus on the charge transport of a MoS<sub>2</sub>/WSe<sub>2</sub>encapsulated heterostructure controlled by a split-gate configuration, revealing a distinctive step-like current profile at a low temperature of 77 K. The observed distinguishable regimes in the current highlight the impact of quantum confinement induced by reduced lateral dimensions coupled with precise electrostatic confinement controlled by gate voltages. The temperature dependence of the device is also investigated to understand the role of thermal effects on the observed electrostatic-controlled transconductance oscillations phenomenon. This study contributes to a deeper understanding of electrostatic effects in 2D transition metal dichalcogenide heterostructures in narrow regimes. It holds promise for developing future integrated electronic devices based on 2D semiconducting nanomaterials with tailored confinement and enhanced functionalities.</p>","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143710448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NanotechnologyPub Date : 2025-03-25DOI: 10.1088/1361-6528/adc4eb
Ahmed M Kamal El-Sagheir, Aya M Soliman, Alaa Elsaghir, Momen M Thabet, Ahmed Faried Abdel Hakiem, Ahmed S Aboraia
{"title":"Synthesis and characterization of piroxicam and M (M= Pd (II), Ag (I)) complex nanoconjugates with orange quantum dots for enhanced antimicrobial and anticancer activity.","authors":"Ahmed M Kamal El-Sagheir, Aya M Soliman, Alaa Elsaghir, Momen M Thabet, Ahmed Faried Abdel Hakiem, Ahmed S Aboraia","doi":"10.1088/1361-6528/adc4eb","DOIUrl":"https://doi.org/10.1088/1361-6528/adc4eb","url":null,"abstract":"<p><p>Conjugation and loading of piroxicam and its metal complexes; Palladium(II) (PdL2) and Silver(I) (AgL) synthesized and characterized by different techniques including IR, UV-Vis spectroscopy, spectrofluorimetry, TEM, XRPD and Zeta potential analyses were achieved. OQDs nanoparticle showed good stability, encapsulation and loading efficiency and controlled release of loaded piroxicam and its metal complexes. Generally, new OQQs conjugates showed enhanced antimicrobial and anticancer activity. In vitro antimicrobial activity screening demonstrated that Ag(I)-OQDs conjugate displayed potent antibacterial effect that was 1.8-fold against E. coli higher than piroxicam (MIC= 31.85 µM), where Pd(II)-OQDs conjugate depicted the highest activity with MIC of 33.05 µM against P. aeruginosa. In case of G+ve bacteria, Ag conjugate had potent activity which was 2.3-fold on S. aureus higher than piroxicam (MIC= 43.12 µM), while Pd conjugate exerted promising activity that was 3.5-fold against E. faecalis higher than piroxicam (MIC= 74.57 µM). Ag conjugate showed the most promising antifungal activity with 2.5-folds more than piroxicam. The in vitro antiproliferative activity depicted that all synthesized conjugates showed better Cytotoxic effect than piroxicam, specifically Pd conjugate which had IC50 values with by 2-fold lower than piroxicam on human liver cancer cell line HepG2. While Pd and Ag conjugates showed 2.3 and 1.9-fold higher effect on human colon cancer cell line HT-29 compared to piroxicam.</p>","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143710667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NanotechnologyPub Date : 2025-03-25DOI: 10.1088/1361-6528/adc4f0
Jie Liu, Qiangqiang Qiao, Jinsen Zhang, Ziang Ren, Shihui Zuo, Yujing Liu, Jianmin Luo, Huadong Yuan, Nai Jianwei, Yao Wang, Xinyong Tao
{"title":"A first-principles study of Hoffmann-type ultra-wide bandgap semiconductor material.","authors":"Jie Liu, Qiangqiang Qiao, Jinsen Zhang, Ziang Ren, Shihui Zuo, Yujing Liu, Jianmin Luo, Huadong Yuan, Nai Jianwei, Yao Wang, Xinyong Tao","doi":"10.1088/1361-6528/adc4f0","DOIUrl":"https://doi.org/10.1088/1361-6528/adc4f0","url":null,"abstract":"<p><p>A novel Hoffman-type metal-organic framework ultra-wide bandgap semiconductor material, {Ni(DMA)2[Ni(CN)4]}(DMA denotes dimethylamine), has been predicted. The material has been named Ni-DMA-Ni, and its structure, stability, electronic, mechanical, optical, and transport properties have been investigated by first-principles simulations. The calculation results demonstrate that Ni-DMA-Ni exhibits excellent thermal and kinetic stability at room temperature, with a bandgap value as high as 4.89 eV and the light absorption capacity reaches 105 cm⁻¹ level in the deep ultraviolet region. The Young's modulus is 27.94 GPa, and the shear modulus is 10.82 GPa, indicating mechanical anisotropy. In addition, the construction of a two-probe device utilizing Ni-DMA-Ni to evaluate its transport properties revealed a negative differential resistance effect in its I-V characteristic curve. These unique properties highlight the potential application of the Ni-DMA-Ni material in the deep ultraviolet optoelectronic field. This study provides novel concepts and contributes significant insights to the research of Hoffman-type semiconductor materials in the field of optoelectronic devices.
.</p>","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143710205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}