Journal of the Ceramic Society of Japan最新文献_第7页

High-mobility rutile SnO2 epitaxial films grown on (1−100) α-Al2O3 高迁移率金红石SnO2(1−100)α-Al2O3<

4区材料科学

Journal of the Ceramic Society of Japan Pub Date : 2023-10-01 DOI: 10.2109/jcersj2.23035

Binjie Chen, Jinghuang Lin, Bin Feng, Yuichi Ikuhara, Hiromichi Ohta

{"title":"High-mobility rutile SnO2 epitaxial films grown on (1−100) α-Al2O3","authors":"Binjie Chen, Jinghuang Lin, Bin Feng, Yuichi Ikuhara, Hiromichi Ohta","doi":"10.2109/jcersj2.23035","DOIUrl":"https://doi.org/10.2109/jcersj2.23035","url":null,"abstract":"Tin dioxide (SnO2) is a semiconductor with significant potential for use in the electronic industry, including sensors, transparent electrodes, and thin film transistors among other purposes. To realize these applications, the synthesis of high-quality thin films is a prerequisite. Here, we show the epitaxial growth of SnO2 films on (1100) α-Al2O3 (M-sapphire) by pulsed laser deposition method. The epitaxial relationship was clarified to be (001)[100]SnO2 || (1100)[0001] α-Al2O3 with 4-fold symmetry, consistent with that grown on (001) TiO2 single crystal. Orthorhombic distortion was absent, possibly owing to a combination of high strain relaxation due to a large lattice mismatch along [0001] α-Al2O3, coupled with a negligible mismatch-induced strain absence along [1120] α-Al2O3. The mobility increases up to ∼57 cm2 V−1 s−1 with increasing film thickness while the density of states (DOS) effective mass keeps a constant around the theoretical value of ∼0.3 m0. Furthermore, the trend of carrier concentration versus mobility is analogous to those of single crystal SnO2, thereby indicating the applicability of M-sapphire substrates in facilitating the epitaxial growth of high-quality SnO2 films.","PeriodicalId":17246,"journal":{"name":"Journal of the Ceramic Society of Japan","volume":"2013 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135372809","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}

引用次数: 0

Electronic and atomic structures of Shockley-partial dislocations in CdX (X = S, Se and Te) CdX (X = S, Se和Te)中Shockley-partial位错的电子和原子结构

4区材料科学

Journal of the Ceramic Society of Japan Pub Date : 2023-10-01 DOI: 10.2109/jcersj2.23055

Sena Hoshino, Tatsuya Yokoi, Yu Ogura, Katsuyuki Matsunaga

{"title":"Electronic and atomic structures of Shockley-partial dislocations in CdX (X = S, Se and Te)","authors":"Sena Hoshino, Tatsuya Yokoi, Yu Ogura, Katsuyuki Matsunaga","doi":"10.2109/jcersj2.23055","DOIUrl":"https://doi.org/10.2109/jcersj2.23055","url":null,"abstract":"II–VI semiconductors, including Cd compounds, become brittle under light illumination. This phenomenon is known as the photoplastic effect (PPE) and is thought to arise from interactions between glide dislocations and photoexcited carriers. The present study investigated atomic structures of 30° Shockley-partial dislocations with and without excess carriers in CdX (X = S, Se and Te), by density-functional-theory (DFT) calculations. It was found that both Cd and anion cores favor unreconstructed atomic structures when excess carriers are absent. In the presence of excess carriers, on the other hand, reconstructed atomic structures were more stable at the anion cores while the unreconstructed ones were still energetically more favorable at the Cd cores. It is thus expected that only the anion cores change their atomic structures by light illumination, which can retard glide-dislocation motion by forming like-atom bonds. Analyses of local densities of states (LDOSs) revealed that the reconstructed Cd and anion cores form shallow and deep defect states within the band gaps, respectively. This determines the possible atomic reconstructions at the dislocation cores in the presence of excess carriers excited by external light.","PeriodicalId":17246,"journal":{"name":"Journal of the Ceramic Society of Japan","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135372982","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}

引用次数: 0

Additive manufacturing using highly concentrated nanocolloids of metal hydroxide salts towards structured metals and metal oxides 增材制造使用高度浓缩的纳米胶体金属氢氧化物盐对结构金属和金属氧化物

4区材料科学

Journal of the Ceramic Society of Japan Pub Date : 2023-10-01 DOI: 10.2109/jcersj2.23119

Naoki Tarutani, Miki Asanome, Kenji Okada, Masahide Takahashi, Takuo Minato, Masahiro Sadakane, Kiyofumi Katagiri, Kei Inumaru

{"title":"Additive manufacturing using highly concentrated nanocolloids of metal hydroxide salts towards structured metals and metal oxides","authors":"Naoki Tarutani, Miki Asanome, Kenji Okada, Masahide Takahashi, Takuo Minato, Masahiro Sadakane, Kiyofumi Katagiri, Kei Inumaru","doi":"10.2109/jcersj2.23119","DOIUrl":"https://doi.org/10.2109/jcersj2.23119","url":null,"abstract":"Additive manufacturing by vat-photopolymerization is important technique to prepare designed objects because of its features of availability, low cost, low energy consumption, and high-speed printing. One of the major challenges of this technique is how to expand the chemical composition towards metals and ceramics in addition to organic compounds. In this paper, we report synthesis of highly concentrated nanocolloids of nickel hydroxide acrylate and use them for vat-photopolymerization. Epoxide-mediated basification induced formation of dispersed nickel hydroxide acrylate monolayer/bilayer nanoparticles (diameter of 2.31 nm). The concentration of nanocolloid was prepared as 2.5 mol L−1 (Ni basis), which corresponds to 43 wt % and 30 vol %. The concentrated nanocolloids enabled to produce objects through vat-photopolymerization by using commercially available 3D printers. Addition of small quantity of organic cross-linker efficiently interconnect nanoparticles to form bulky objects. Owing to the organic moiety of nickel hydroxide salt nanoparticles, metal/carbon composites formed by heat-treatment without any reduction gas supply. Further heat-treatment led metal oxide bulky object with macroporous structure.","PeriodicalId":17246,"journal":{"name":"Journal of the Ceramic Society of Japan","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135372635","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}

引用次数: 0

Grain boundary modification of Li3PO4 and Li3BO3 in garnet-type solid electrolyte for suppressing Li dendrite growth Li3PO4和Li 3 & lt; / sub> BO 3 & lt; / sub>在石榴石型固体电解质中抑制锂枝晶生长

4区材料科学

Journal of the Ceramic Society of Japan Pub Date : 2023-10-01 DOI: 10.2109/jcersj2.23069

Daisuke Mori, Miho Sato, Sou Taminato, Nobuyuki Imanishi, Kota Suzuki, Masaaki Hirayama

{"title":"Grain boundary modification of Li3PO4 and Li3BO3 in garnet-type solid electrolyte for suppressing Li dendrite growth","authors":"Daisuke Mori, Miho Sato, Sou Taminato, Nobuyuki Imanishi, Kota Suzuki, Masaaki Hirayama","doi":"10.2109/jcersj2.23069","DOIUrl":"https://doi.org/10.2109/jcersj2.23069","url":null,"abstract":"Li ionic conductors that are stable to lithium metal with high ionic conductivity are required as solid electrolytes for all-solid-state lithium metal batteries with high energy density. Lithium dendrite growth leading to short-circuit is one of the major issues to solve for developing practical batteries using lithium metal electrodes. We have introduced Li3PO4 (LPO) and Li3BO3 (LBO) as a grain boundary phase in the garnet-type lithium ionic conductor, Li6.25Ga0.25La3Zr2O12 (LGLZ), by co-sintering. The lattice parameters, sinterability, elemental distribution, particle morphology, and electrochemical properties have been investigated. The sinterability has decreased with the introduction of LPO and LBO, while no significant change in the ionic conductivity is observed. The LGLZ with LPO was unstable to Li metal and did not exhibit the improvement of Li plating/stripping. Meanwhile, the LBO introduction into the grain boundary as a functional core increased the critical current density of the short circuit. Li dendrite growth could be suppressed by modifying the grain boundaries of the sintered body.","PeriodicalId":17246,"journal":{"name":"Journal of the Ceramic Society of Japan","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135372796","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}

引用次数: 0

Synthesis of high-performance La0.6Sr0.4CoO3−δ nano-powder prepared via an acetic–acrylic method 高性能La0.6Sr0.4CoO3 - δ醋酸-丙烯酸法制备纳米粉体

4区材料科学

Journal of the Ceramic Society of Japan Pub Date : 2023-10-01 DOI: 10.2109/jcersj2.23071

Hua Hu, Zhijun Liu, Zhangfa Huang, Baohua Cao, Ming Chen, Qin Wang, Wanbing Guan, Jun Yang, Jianxin Wang, Yu Su

{"title":"Synthesis of high-performance La0.6Sr0.4CoO3−δ nano-powder prepared via an acetic–acrylic method","authors":"Hua Hu, Zhijun Liu, Zhangfa Huang, Baohua Cao, Ming Chen, Qin Wang, Wanbing Guan, Jun Yang, Jianxin Wang, Yu Su","doi":"10.2109/jcersj2.23071","DOIUrl":"https://doi.org/10.2109/jcersj2.23071","url":null,"abstract":"A novel acetic-acrylic (AA) approach was developed to obtain La0.6Sr0.4CoO3−δ (LSC) using lanthanum oxide, acetate, and acrylic acid as the starting materials. We synthesized several LSC products with varying acrylic acid (L) and metal salt (M) molar ratios (L/M). The precursors and the final products were thoroughly characterized. When the L/M molar ratio is 0.9, the high-purity nano LSC powders were obtained by heating at 900 °C. The conductivity of LSC bulk sample was equal to 2534 and 2430 S cm−1 at 650 and 700 °C, respectively. This sintered LSC was used in a cathode with polarisation resistances (Rp) of 0.190 and 0.084 Ω·cm2 at 650 and 700 °C, respectively. It was observed that at 700 and 650 °C, the power density of an anode with a structure that might be defined as Ni-3YSZ/8YSZ/GDC/LSC-0.9 was 947 and 585 mW cm−2, respectively. Our results revealed that the high-performance LSC powders could be synthesized by the acetic-acrylic synthesis method, applicable to a large scale.","PeriodicalId":17246,"journal":{"name":"Journal of the Ceramic Society of Japan","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135372802","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}

引用次数: 0

Near-full compaction within only 30 min of total sintering time by shrinkage-rate-controlled flash sintering in 3 mol % Y2O3-doped ZrO2 polycrystal 在3mol % Y2O3掺杂ZrO2多晶体

4区材料科学

Journal of the Ceramic Society of Japan Pub Date : 2023-10-01 DOI: 10.2109/jcersj2.23041

Yuki Ishino, Masao Koike, Ayu Kodaira, Tomoharu Tokunaga, Takahisa Yamamoto

引用次数: 0

Dielectric properties of PNb9O25–GeNb18O47 ceramics PNb9O25-GeNb18O47陶瓷的介电性能

IF 1.1 4区材料科学

Journal of the Ceramic Society of Japan Pub Date : 2023-09-01 DOI: 10.2109/jcersj2.22158

Keisuke Shimamura, J. Fu

引用次数: 0

Effect of BaCl2 flux on low temperature synthesis of Ba3Si6O12N2:Eu phosphors from BaCN2 and SiO2 BaCl2通量对BaCN2和SiO2低温合成Ba3Si6O12N2:Eu荧光粉的影响

IF 1.1 4区材料科学

Journal of the Ceramic Society of Japan Pub Date : 2023-09-01 DOI: 10.2109/jcersj2.23094

H. Shibuya, Y. Masubuchi, M. Higuchi

引用次数: 0

Enhancing fluorescent nanocomposites: Strategies for interaction and interface modification of carbon dots with metal oxides 增强荧光纳米复合材料:碳点与金属氧化物的相互作用和界面修饰策略

IF 1.1 4区材料科学

Journal of the Ceramic Society of Japan Pub Date : 2023-09-01 DOI: 10.2109/jcersj2.23088

Kazumasa Suzuki

引用次数: 0

Radiation-induced synthesis of carbon-supported niobium oxide nanoparticle catalysts and investigation of heat treatment conditions to improve the oxygen reduction reaction activity 辐射诱导合成碳负载氧化铌纳米颗粒催化剂并研究热处理条件以提高氧还原反应活性

IF 1.1 4区材料科学

Journal of the Ceramic Society of Japan Pub Date : 2023-09-01 DOI: 10.2109/jcersj2.23039

Naoki Shinyoshi, S. Seino, Y. Uetake, T. Nagai, R. Monden, A. Ishihara, T. Nakagawa

引用次数: 0