Electronic Materials Letters最新文献_第8页

2D Layered (CH3NH3)3Sb2ClxI9−x Lead-Free Perovskite for Weak Light Detection 用于弱光探测的二维层状 (CH3NH3)3Sb2ClxI9-x 无铅过氧化物

IF 2.1 4区材料科学

Electronic Materials Letters Pub Date : 2024-01-25 DOI: 10.1007/s13391-023-00480-x

Amit Kumar Pathak, Sudip Mukherjee, Sudip K. Batabyal

{"title":"2D Layered (CH3NH3)3Sb2ClxI9−x Lead-Free Perovskite for Weak Light Detection","authors":"Amit Kumar Pathak, Sudip Mukherjee, Sudip K. Batabyal","doi":"10.1007/s13391-023-00480-x","DOIUrl":"10.1007/s13391-023-00480-x","url":null,"abstract":"<div><p>Weak light detection is a current research topic and chlorine-containing lead-free perovskite materials are promising. In this research work, Cl-incorporated methylammonium Sb mixed halide perovskite (CH<sub>3</sub>NH<sub>3</sub>)<sub>3</sub> (Sb)<sub>2</sub>(Cl)<sub>X</sub> I<sub>(9−X)</sub> derivatives were investigated for weak light detection. We have devised a solution-processable slow crystal growth (SCG) to fabricate 2D layered (CH<sub>3</sub>NH<sub>3</sub>)<sub>3</sub> (Sb)<sub>2</sub>(Cl)<sub>X</sub> I<sub>(9−X)</sub> lead-free perovskite microcrystals. SCG facilitate only 1.51 atomic percent chlorine incorporation confirmed in FESEM-EDS analysis and band gap 1.98 eV determines the SCG grown lead-free perovskite molecular formula to be (CH<sub>3</sub>NH<sub>3</sub>)<sub>3</sub> (Sb)<sub>2</sub>(Cl)<sub>X</sub> I<sub>(9−X)</sub>. FTO/ (CH<sub>3</sub>NH<sub>3</sub>)<sub>3</sub> (Sb)<sub>2</sub>(Cl)<sub>X</sub> I<sub>(9−X)</sub> PMCs/FTO self-powered photodetector detect 400 nm, 1µW cm<sup>−2</sup> weak optical signal. (CH<sub>3</sub>NH<sub>3</sub>)<sub>3</sub> (Sb)<sub>2</sub>(Cl)<sub>X</sub> I<sub>(9−X)</sub> respond to weak optical signals in the 300–600 nm wavelength range. Also, (CH<sub>3</sub>NH<sub>3</sub>)<sub>3</sub> (Sb)<sub>2</sub>(Cl)<sub>X</sub> I<sub>(9−X)</sub> exhibit a high reflectance (> 70%) for the wavelength above 600 nm with its inherent thermodynamic stability is a candidate for use as a reflective layer in tandem solar cells.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":536,"journal":{"name":"Electronic Materials Letters","volume":"20 4","pages":"425 - 431"},"PeriodicalIF":2.1,"publicationDate":"2024-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139552128","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 by Electrolysis of Iron-Based Fluoride as Cathode Materials for Lithium Ion Batteries 通过电解合成作为锂离子电池阴极材料的铁基氟化物

IF 2.1 4区材料科学

Electronic Materials Letters Pub Date : 2024-01-10 DOI: 10.1007/s13391-023-00478-5

Zengzeng Zheng, Jin Shi, Xujie Xiao, Xu Li, Jingkang Chen, Chengfei Zhu

{"title":"Synthesis by Electrolysis of Iron-Based Fluoride as Cathode Materials for Lithium Ion Batteries","authors":"Zengzeng Zheng, Jin Shi, Xujie Xiao, Xu Li, Jingkang Chen, Chengfei Zhu","doi":"10.1007/s13391-023-00478-5","DOIUrl":"10.1007/s13391-023-00478-5","url":null,"abstract":"<div><p>The hydrated iron fluoride (Fe<sub>3</sub>F<sub>8</sub>·2H<sub>2</sub>O) with mixed valence cations is successfully synthesized through a rapid electrolytic synthesis route for the first time using low-concentration HF solution as fluorine source and cheap carbon steel as iron source. By controlling the value of current density, submicron structured hydrated iron fluoride with different grain sizes is obtained. The thermal behavior of Fe<sub>3</sub>F<sub>8</sub>·2H<sub>2</sub>O under air atmosphere is studied. The product cooling to room temperature after heat treatment is FeF<sub>2.2</sub>(OH)<sub>0.8</sub>·0.33H<sub>2</sub>O, which is determined by X-ray diffraction (XRD), X-ray photoelectron spectra (XPS), Fourier transform infrared spectrometer (FT-IR), and thermogravimetry/differential scanning calorimetry (TG/DSC). The evaluation of the electrochemical performance of FeF<sub>2.2</sub>(OH)<sub>0.8</sub>·0.33H<sub>2</sub>O as a cathode for lithium batteries shows that it has an initial discharge capacity as high as 580 mAh g<sup>−1</sup> in a wide voltage range of 1.0–4.5 V at a current density of 20 mA g<sup>−1</sup>, but the cycle performance is not very satisfactory, only 170 mAh g<sup>−1</sup> after 50 cycles.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":536,"journal":{"name":"Electronic Materials Letters","volume":"20 3","pages":"306 - 316"},"PeriodicalIF":2.1,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13391-023-00478-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139423465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

N-Doped Porous Carbon Encapsulated MnFe2O4 Nanoparticles as Advanced Anodes for Li-Ion Batteries 掺杂 N 的多孔碳封装 MnFe2O4 纳米粒子作为锂离子电池的先进阳极

IF 2.1 4区材料科学

Electronic Materials Letters Pub Date : 2024-01-02 DOI: 10.1007/s13391-023-00477-6

Taolin Zhao, Xinlei Zhang, Zezheng Liu, Qingyuan Gu, Xiaoyu Jin, Saihu Xie, Shuai Liu

{"title":"N-Doped Porous Carbon Encapsulated MnFe2O4 Nanoparticles as Advanced Anodes for Li-Ion Batteries","authors":"Taolin Zhao, Xinlei Zhang, Zezheng Liu, Qingyuan Gu, Xiaoyu Jin, Saihu Xie, Shuai Liu","doi":"10.1007/s13391-023-00477-6","DOIUrl":"10.1007/s13391-023-00477-6","url":null,"abstract":"<div><p>Transition metal oxide MnFe<sub>2</sub>O<sub>4</sub> is considered a promising anode material for Li-ion batteries owing to its high theoretical specific capacity. However, this material has two bottleneck problems, i.e., poor conductivity and serious volume expansion during cycling. In this work, MnFe<sub>2</sub>O<sub>4</sub> nanoparticles were successfully encapsulated in the matrix of N-doped porous carbon via a sol–gel method. As a result, the N-doped carbon matrix enhances the electronic conductivity of the composites. The special porous structure increases the contact area between the electrode material and the electrolyte and facilitates the rapid infiltration of the electrolyte. At a calcination temperature of 400 °C, the MnFe<sub>2</sub>O<sub>4</sub>/C composite shows a high initial discharge specific capacity of 1207.0 mAh g<sup>−1</sup> at 0.2 A g<sup>−1</sup> and retains a reversible specific capacity of 1100.1 mAh g<sup>−1</sup> after 200 cycles. The simple design of metal oxide nanomaterials encapsulated in N-doped porous carbon provides a new direction for improving the electrochemical performance of electrode materials for Li-ion batteries.</p><h3>Graphical Abstract</h3><p>A brief abstract: MnFe<sub>2</sub>O<sub>4</sub> nanoparticles were successfully encapsulated in the matrix of N-doped porous carbon via a sol–gel method. At a calcination temperature of 400 °C, the MnFe<sub>2</sub>O<sub>4</sub>/C composite shows a high initial discharge specific capacity of 1207.0 mAh g<sup>−1</sup> at 0.2 C and retains a reversible specific capacity of 1100.1 mAh g<sup>−1</sup> after 200 cycles.</p>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":536,"journal":{"name":"Electronic Materials Letters","volume":"20 3","pages":"317 - 325"},"PeriodicalIF":2.1,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139078184","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

Efficient and Selective Oxygen Evolution Reaction in Seawater Electrolysis with Electrochemically Synthesized Amorphous-like NiFeS 电化学合成的非晶态类镍铁合金在海水电解中的高效和选择性氧气进化反应

IF 2.1 4区材料科学

Electronic Materials Letters Pub Date : 2023-12-19 DOI: 10.1007/s13391-023-00476-7

Daegeon Choi, Sangwoo Ryu

{"title":"Efficient and Selective Oxygen Evolution Reaction in Seawater Electrolysis with Electrochemically Synthesized Amorphous-like NiFeS","authors":"Daegeon Choi, Sangwoo Ryu","doi":"10.1007/s13391-023-00476-7","DOIUrl":"10.1007/s13391-023-00476-7","url":null,"abstract":"<div><p>For the heterogeneous alloy catalysts of water electrolysis, it has been reported that conductivity can be improved through structural modifications by introducing other elements like chalcogens. Transition metal sulfides can induce numerous lattice defects due to their unique interface formation, thereby promoting abundant active sites and facilitating electron/ion movement. In this study, we report the enhanced electrochemical activity of NiFeS formed on nickel foam (NiFeS@NF) for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) during the water electrolysis, especially, the seawater electrolysis. NiFeS@NF synthesized through a one-step electrochemical deposition had an amorphous-like highly porous structure with the aggregates of spherical nanoparticles attached to nickel foam. Compared to NiFe@NF, NiFeS@NF catalysts demonstrated a reduced overpotential by ~32 mV and ~96 mV for OER and HER, respectively, at 100 mA cm<sup>−2</sup> and secured electrochemical stability over 24 h. Moreover, bifunctional seawater electrolysis using NiFeS@NF as both electrodes demonstrated the reduced overpotential by ~80 mV with durability over time. This facile synthesis method for anion doping and the enhanced and selective electrolysis of seawater without producing Cl<sub>2</sub> gas holds promise for the creation of high-performance electrocatalysts applicable in a wide range of hydrogen energy-related fields.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":536,"journal":{"name":"Electronic Materials Letters","volume":"20 2","pages":"173 - 182"},"PeriodicalIF":2.1,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138743322","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

A Stepped Mesh Host for Lithium Metal Batteries Inspired by Transmission Electron Microscopy Sampling Grids 受透射电子显微镜取样网格启发的锂金属电池阶梯式网格主机

IF 2.1 4区材料科学

Electronic Materials Letters Pub Date : 2023-12-16 DOI: 10.1007/s13391-023-00474-9

Jeongmin Kim, Mihyun Kim, Minki Kim, Jinseok Hong, Seung Won Moon, Seung-Ho Yu, Seung-Yong Lee

{"title":"A Stepped Mesh Host for Lithium Metal Batteries Inspired by Transmission Electron Microscopy Sampling Grids","authors":"Jeongmin Kim, Mihyun Kim, Minki Kim, Jinseok Hong, Seung Won Moon, Seung-Ho Yu, Seung-Yong Lee","doi":"10.1007/s13391-023-00474-9","DOIUrl":"10.1007/s13391-023-00474-9","url":null,"abstract":"<div><p>With the growing demand for high-energy-density rechargeable batteries, lithium metal anodes have reemerged as a promising alternative to conventional graphite anodes in lithium-ion batteries. Lithium metal boasts exceptional energy storage characteristics, yet its practical application has been impeded by dendritic growth issues. Extensive research has explored various solutions, including electrode engineering through surface modification and 3D structural hosts, which often involve intricate designs and processes. This study introduces an effective approach to govern lithium metal nucleation and growth, leveraging the synergistic effects of a lithiophilic layer and surface energy diversification. Inspired by the structure of standard copper mesh grids used in transmission electron microscopy (TEM), we illustrate how subtle topographic modifications can provide a viable path to anode-free lithium metal batteries. This research represents a significant stride towards accelerated advancements in lithium metal batteries, promising higher energy density and enhanced safety for energy storage solutions.</p></div>","PeriodicalId":536,"journal":{"name":"Electronic Materials Letters","volume":"20 6","pages":"767 - 774"},"PeriodicalIF":2.1,"publicationDate":"2023-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138687371","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

The In-Situ TEM Isothermal Aging Evolution in a µ-Cu/NiAu/Sn/Cu Solder Joint for Full Intermetallic Compounds Interconnects of Flexible Electronics 用于柔性电子全金属间化合物互连的 µ-Cu/NiAu/Sn/Cu 焊点的原位 TEM 等温老化演化

IF 2.1 4区材料科学

Electronic Materials Letters Pub Date : 2023-12-12 DOI: 10.1007/s13391-023-00475-8

Jinhong Liu, Xinyi Jing, Jieshi Chen, Kyung-Wook Paik, Peng He, Shuye Zhang

{"title":"The In-Situ TEM Isothermal Aging Evolution in a µ-Cu/NiAu/Sn/Cu Solder Joint for Full Intermetallic Compounds Interconnects of Flexible Electronics","authors":"Jinhong Liu, Xinyi Jing, Jieshi Chen, Kyung-Wook Paik, Peng He, Shuye Zhang","doi":"10.1007/s13391-023-00475-8","DOIUrl":"10.1007/s13391-023-00475-8","url":null,"abstract":"<div><p>A structure composed of various Cu–Ni–Sn IMCs would develop from severe Joule heat and excessive elemental diffusion under high-density current in the solder joints of flexible printed circuit (FPC). Herein, we firstly observed the evolution of a Cu<sub>6</sub>Sn<sub>5</sub> + Cu<sub>3</sub>Sn/(Ni,Cu)<sub>3</sub>Sn<sub>4</sub> hybrid structure in a µ-Cu/NiAu/Sn/Cu solder joint for full intermetallic compounds (IMCs) interconnect of flexible electronics under isothermal aging condition by in-situ TEM. The joint was divided into two regions, the IMC type on the right region remained unchanged with dwell time prolonging, while the ratio of Cu<sub>3</sub>Sn on the left region at various dwell times fitted the JMAK model when the kinetic parameter n picked 1.5, indicating that grain boundary diffusion was the predominant mechanism for transporting Cu atoms. The nucleation and growth of Cu<sub>3</sub>Sn grains were finished in the Cu<sub>6</sub>Sn<sub>5</sub> layer. The nucleation of a Cu<sub>3</sub>Sn grain with a spherical cap shape was firstly captured by HRTEM, and Cu<sub>3</sub>Sn grains underwent a transformation from columnar to equiaxed when the dwell time was increased, making the morphology of Cu<sub>3</sub>Sn grains in a µ-Cu/NiAu/Sn/Cu solder joint significantly different from the situation in larger solder joints. This study is expected to provide an in-depth study of the microstructural evolution of micro Cu/NiAu/Sn/Cu solder joints under aging condition and thereby expand their application in the microelectronic industry.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":536,"journal":{"name":"Electronic Materials Letters","volume":"20 3","pages":"352 - 361"},"PeriodicalIF":2.1,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138628639","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

4H to 3C Polytypic Transformation in Al+ Implanted SiC During High Temperature Annealing Al+注入SiC高温退火过程中4H到3C多型转变

IF 2.1 4区材料科学

Electronic Materials Letters Pub Date : 2023-12-02 DOI: 10.1007/s13391-023-00473-w

L. Kuebler, E. Hershkovitz, D. Kouzminov, H.-J. Gossmann, S. Charnvanichborikarn, C. Hatem, H. Kim, K. S. Jones

{"title":"4H to 3C Polytypic Transformation in Al+ Implanted SiC During High Temperature Annealing","authors":"L. Kuebler, E. Hershkovitz, D. Kouzminov, H.-J. Gossmann, S. Charnvanichborikarn, C. Hatem, H. Kim, K. S. Jones","doi":"10.1007/s13391-023-00473-w","DOIUrl":"10.1007/s13391-023-00473-w","url":null,"abstract":"<div><p>Polytypism in SiC has created interest and opportunity for device heterostructures and bandgap engineering in power electronic applications. As each SiC polytype possesses a different bandgap, electron mobility, and degree of anisotropy, unique interfaces can be created without changing its chemical composition. The 4H polytype is commonly used, but the 3C polytype offers high surface electron mobility with isotropic properties as the only cubic polytype. This has driven research on heteroepitaxy with limited success in traditional chemical vapor deposition chambers. Discussion on polytype control and stability has been restricted to bulk and epitaxial crystal growth, despite numerous reports of polytypic transformations occurring during other processing steps. This study revealed the polytypic transformation of 4H-SiC to 3C-SiC after high temperature annealing using high resolution cross-sectional transmission electron microscopy (TEM) and scanning transmission electron microscopy (STEM). Above 1750 °C, the surface significantly roughened under a reduced pressure of Ar, whereas surface planarity was maintained under Ar atmospheric pressure. The formation of 3C-SiC islands occurred adjacent to large surface pits through an epitaxial growth process for the reduced pressure condition only. Loss of SiC stoichiometry at the surface with Si enrichment and availability of on-axis terraces enabled 3C nucleation. 3C-SiC growth was retarded using a protective carbon cap (C-cap) where defect-free single crystal 3C-SiC has a coherent interface with the 4H-SiC substrate underneath. These findings demonstrate that the 3C polytype can be stable at high temperatures, encouraging the need for a better understanding of polytype stability and control.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":536,"journal":{"name":"Electronic Materials Letters","volume":"20 3","pages":"345 - 351"},"PeriodicalIF":2.1,"publicationDate":"2023-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138506846","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

Correction to: Manipulation of Hole and Exciton Distributions in Organic Light-Emitting Diodes with Dual Emission Layers 更正：操纵双发射层有机发光二极管中的空穴和激子分布

IF 2.1 4区材料科学

Electronic Materials Letters Pub Date : 2023-11-30 DOI: 10.1007/s13391-023-00471-y

Suk-Ho Song, Jae-In Yoo, Hyo-Bin Kim, Sung-Cheon Kang, Kanghoon Kim, Sung-Jae Park, Qun Yan, Jang-Kun Song

引用次数: 0

Contact Area of Electrification Materials Relating to Triboelectric Generators: A Comparative Study 摩擦发电机电气化材料接触面积的比较研究

IF 2.1 4区材料科学

Electronic Materials Letters Pub Date : 2023-11-25 DOI: 10.1007/s13391-023-00470-z

Aristeidis Repoulias, Irini Logothetis, Dimitra Matsouka, Savvas Vassiliadis

{"title":"Contact Area of Electrification Materials Relating to Triboelectric Generators: A Comparative Study","authors":"Aristeidis Repoulias, Irini Logothetis, Dimitra Matsouka, Savvas Vassiliadis","doi":"10.1007/s13391-023-00470-z","DOIUrl":"10.1007/s13391-023-00470-z","url":null,"abstract":"<div><p>Triboelectric generators (TEGs) stemming from the triboelectric phenomena, are promising for energy harvesting due to their high output power and efficiency. Analysis of the tribo material selection for TEGs has suggested that energy generation is linked to heterogeneous and homogeneous materials found at opposite ends of the triboelectric series. Current research has identified that the triboelectric phenomenon also exists from contact between identical tribo materials with the advancement of surface modification. However, a comparison of composite and identical homogeneous TEGs has yet to be reported. For this research, organic polymer membranes Polyamide-6 (PA6) and Polytetrafluoroethylene (PTFE) were evaluated. The membranes were cut into samples of varying dimensions to build three sets of TEGs for comparison. Two identical sets of four sampled TEGs were fabricated using the same membrane (i.e., PA6-PA6 and PTFE-PTFE); in contrast to a composite set of four sampled TEGs made from the two distinct membranes (i.e., PA6-PTFE). By repeatedly sampling the TEGs in sliding mode at a speed of 0.2 m/s and with a vertical force of 9.8 N an open circuit voltage (<i>V</i><sub><i>oc</i></sub>) was generated and recorded. As a result, the <i>V</i><sub><i>oc</i></sub> of the identical TEGs was compared to the <i>V</i><sub><i>oc</i></sub> of the composite TEG in which the tribo materials are located at opposite ends of the triboelectric series. It was also observed that the <i>V</i><sub><i>oc</i></sub> increased almost linear in relation to the surface area of the TEGs; thus, suggesting that the surface area of the TEG can influence significantly the <i>V</i><sub><i>oc</i></sub> to a great extent.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":536,"journal":{"name":"Electronic Materials Letters","volume":"20 3","pages":"283 - 292"},"PeriodicalIF":2.1,"publicationDate":"2023-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13391-023-00470-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138506847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of Sputtering Parameters and Their Effect on Structural and Electrical Properties of CAAC-IGZO Thin-Film Transistors 溅射参数优化及其对CAAC-IGZO薄膜晶体管结构和电学性能的影响

IF 2.1 4区材料科学

Electronic Materials Letters Pub Date : 2023-11-23 DOI: 10.1007/s13391-023-00472-x

Jae Yu Cho, Jaeseung Jo, Parag R. Patil, Yong Tae Kim, Deok-Yong Cho, Jin Hyeok Kim, Jaeyeong Heo

{"title":"Optimization of Sputtering Parameters and Their Effect on Structural and Electrical Properties of CAAC-IGZO Thin-Film Transistors","authors":"Jae Yu Cho, Jaeseung Jo, Parag R. Patil, Yong Tae Kim, Deok-Yong Cho, Jin Hyeok Kim, Jaeyeong Heo","doi":"10.1007/s13391-023-00472-x","DOIUrl":"10.1007/s13391-023-00472-x","url":null,"abstract":"<div><p>A c-axis aligned crystalline indium gallium zinc oxide (CAAC-IGZO) possesses unique properties beneficial for thin-film transistors (TFTs). In this study, we investigate the effect of oxygen ratio and radio frequency (RF) power on the structural, electrical, and operational characteristics of CAAC-IGZO thin films. Films were deposited on SiO<sub>2</sub> substrates using an RF sputtering system equipped with a target containing In, Ga, Zn, and O with a composition ratio of 1:1:1:4. The effect of oxygen percentage on the structural characteristics was analyzed by X-ray diffraction (XRD), transmission electron microscopy (TEM). The oxygen percentage in the film was found to play a crucial role in forming the CAAC-IGZO and orientation of the thin films. With increasing O<sub>2</sub> fraction, the (009)-preferred orientation of the films improved. X-ray absorption spectroscopy also validated the improved orientations of the CAAC-IGZO with high O<sub>2</sub> concentrations up to 70%. In terms of TFT performance, however, the device with 3.3% oxygen exhibited the best performance with a saturation mobility of 10.9 cm<sup>2</sup> V<sup>− 1</sup> s<sup>− 1</sup>. TFT devices were prepared at a low oxygen fraction (10%) with different RF power inputs from 100 to 250 W, where the device prepared with highest power (250 W) showed the best performance.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":536,"journal":{"name":"Electronic Materials Letters","volume":"20 4","pages":"372 - 380"},"PeriodicalIF":2.1,"publicationDate":"2023-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138506839","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