Science and Technology of Advanced Materials最新文献_第8页

Formation of electron traps in semiconducting polymers via a slow triple-encounter between trap precursor particles. 通过陷阱前体粒子之间缓慢的三重相遇，在半导体聚合物中形成电子陷阱。

IF 5.5 3区材料科学

Science and Technology of Advanced Materials Pub Date : 2024-01-31 eCollection Date: 2024-01-01 DOI: 10.1080/14686996.2024.2312148

Mohammad Sedghi, Camilla Vael, Wei-Hsu Hu, Michael Bauer, Daniele Padula, Alessandro Landi, Mirko Lukovic, Matthias Diethelm, Gert-Jan Wetzelaer, Paul W M Blom, Frank Nüesch, Roland Hany

{"title":"Formation of electron traps in semiconducting polymers via a slow triple-encounter between trap precursor particles.","authors":"Mohammad Sedghi, Camilla Vael, Wei-Hsu Hu, Michael Bauer, Daniele Padula, Alessandro Landi, Mirko Lukovic, Matthias Diethelm, Gert-Jan Wetzelaer, Paul W M Blom, Frank Nüesch, Roland Hany","doi":"10.1080/14686996.2024.2312148","DOIUrl":"10.1080/14686996.2024.2312148","url":null,"abstract":"Already in 2012, Blom et al. reported (Nature Materials 2012, 11, 882) in semiconducting polymers on a general electron-trap density of ≈3 × 1017 cm-3, centered at an energy of ≈3.6 eV below vacuum. It was suggested that traps have an extrinsic origin, with the water-oxygen complex [2(H2O)-O2] as a possible candidate, based on its electron affinity. However, further evidence is lacking and the origin of universal electron traps remained elusive. Here, in polymer diodes, the temperature-dependence of reversible electron traps is investigated that develop under bias stress slowly over minutes to a density of 2 × 1017 cm-3, centered at an energy of 3.6 eV below vacuum. The trap build-up dynamics follows a 3rd-order kinetics, in line with that traps form via an encounter between three diffusing precursor particles. The accordance between universal and slowly evolving traps suggests that general electron traps in semiconducting polymers form via a triple-encounter process between oxygen and water molecules that form the suggested [2(H2O)-O2] complex as the trap origin.","PeriodicalId":21588,"journal":{"name":"Science and Technology of Advanced Materials","volume":"25 1","pages":"2312148"},"PeriodicalIF":5.5,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10868412/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139741938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Fully printed non-contact touch sensors based on GCN/PDMS composites: enabling over-the-bottom detection, 3D recognition, and wireless transmission. 基于 GCN/PDMS 复合材料的全印刷非接触式触摸传感器：实现底部检测、三维识别和无线传输。

IF 5.5 3区材料科学

Science and Technology of Advanced Materials Pub Date : 2024-01-29 eCollection Date: 2024-01-01 DOI: 10.1080/14686996.2024.2311635

Bingxiang Li, Xianbin Zheng, SeHyun Kim, Xuhao Wang, Fuhao Jiang, Rong Li, Sang Woo Joo, Chenhao Cong, Xinlin Li

{"title":"Fully printed non-contact touch sensors based on GCN/PDMS composites: enabling over-the-bottom detection, 3D recognition, and wireless transmission.","authors":"Bingxiang Li, Xianbin Zheng, SeHyun Kim, Xuhao Wang, Fuhao Jiang, Rong Li, Sang Woo Joo, Chenhao Cong, Xinlin Li","doi":"10.1080/14686996.2024.2311635","DOIUrl":"10.1080/14686996.2024.2311635","url":null,"abstract":" The rapid advancement in intelligent bionics has elevated electronic skin to a pivotal component in bionic robots, enabling swift responses to diverse external stimuli. Combining wearable touch sensors with IoT technology lays the groundwork for achieving the versatile functionality of electronic skin. However, most current touch sensors rely on capacitive layer deformations induced by pressure, leading to changes in capacitance values. Unfortunately, sensors of this kind often face limitations in practical applications due to their uniform sensing capabilities. This study presents a novel approach by incorporating graphitic carbon nitride (GCN) into polydimethylsiloxane (PDMS) at a low concentration. Surprisingly, this blend of materials with higher dielectric constants yields composite films with lower dielectric constants, contrary to expectations. Unlike traditional capacitive sensors, our non-contact touch sensors exploit electric field interference between the object and the sensor's edge, with enhanced effects from the low dielectric constant GCN/PDMS film. Consequently, we have fabricated touch sensor grids using an array configuration of dispensing printing techniques, facilitating fast response and ultra-low-limit contact detection with finger-to-device distances ranging from 5 to 100 mm. These sensors exhibit excellent resolution in recognizing 3D object shapes and accurately detecting positional motion. Moreover, they enable real-time monitoring of array data with signal transmission over a 4G network. In summary, our proposed approach for fabricating low dielectric constant thin films, as employed in non-contact touch sensors, opens new avenues for advancing electronic skin technology.","PeriodicalId":21588,"journal":{"name":"Science and Technology of Advanced Materials","volume":"25 1","pages":"2311635"},"PeriodicalIF":5.5,"publicationDate":"2024-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10868416/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139741939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Synthesis of millimeter-scale ZIF-8 single crystals and their reversible crystal structure changes 毫米级 ZIF-8 单晶的合成及其晶体结构的可逆变化

IF 5.5 3区材料科学

Science and Technology of Advanced Materials Pub Date : 2024-01-19 DOI: 10.1080/14686996.2023.2292485

Azhar Alowasheeir, Nagy L. Torad, Toru Asahi, Saad M. Alshehri, Tansir Ahamad, Yoshio Bando, Miharu Eguchi, Yusuke Yamauchi, Yukana Terasawa, Minsu Han

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Antibacterial and osteogenic thin film on Ti-6Al-4V surface formed by passivation process in copper hydroxide solution 氢氧化铜溶液中的钝化工艺在 Ti-6Al-4V 表面形成的抗菌和成骨薄膜

IF 5.5 3区材料科学

Science and Technology of Advanced Materials Pub Date : 2024-01-10 DOI: 10.1080/14686996.2024.2303327

Masaya Shimabukuro, Miki Morinobu, A. Tsuchiya, Ryo Kishida, Masakazu Kawashita, Kunio Ishikawa

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Emerging trends in research and development on earth abundant materials for ammonia degradation coupled with H2 generation 用于氨降解和产生 H2 的地球丰富材料的研发新趋势

IF 5.5 3区材料科学

Science and Technology of Advanced Materials Pub Date : 2024-01-09 DOI: 10.1080/14686996.2023.2301423

Zakiullah Zaidi, Kamlesh, Yesleen Gupta, Sandeep Singhai, Manish Mudgal, Archana Singh

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Highly-selective layer-by-layer membrane modified with polyethylenimine and graphene oxide for vanadium redox flow battery 用于钒氧化还原液流电池的聚乙烯亚胺和氧化石墨烯改性高选择性逐层膜

IF 5.5 3区材料科学

Science and Technology of Advanced Materials Pub Date : 2024-01-04 DOI: 10.1080/14686996.2023.2300697

Saidatul Sophia Sha’rani, Mohamed Mahmoud Nasef, Nurfatehah Wahyuny Che Jusoh, Eleen Dayana Mohamed Isa, Roshafima Rasit Ali

引用次数: 0

Site-activatable targeting of macromolecular alendronate for accelerated fracture healing 大分子阿仑膦酸钠加速骨折愈合的位点可激活靶向

IF 5.5 3区材料科学

Science and Technology of Advanced Materials Pub Date : 2023-11-21 DOI: 10.1080/14686996.2023.2286218

Makoto Matsui, Yuka Kaihara, Yuto Honda, Nobuhiro Nishiyama, Yutaka Miura

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Vacuum-powered soft actuator with oblique air chambers for easy detachment of artificial dry adhesive by coupled contraction and twisting 真空驱动的软驱动器，斜气室，通过耦合收缩和扭转，容易脱离人工干胶

3区材料科学

Science and Technology of Advanced Materials Pub Date : 2023-11-09 DOI: 10.1080/14686996.2023.2274818

Seung Hoon Yoo, Minsu Kim, Han Jun Park, Ga in Lee, Sung Ho Lee, Moon Kyu Kwak

{"title":"Vacuum-powered soft actuator with oblique air chambers for easy detachment of artificial dry adhesive by coupled contraction and twisting","authors":"Seung Hoon Yoo, Minsu Kim, Han Jun Park, Ga in Lee, Sung Ho Lee, Moon Kyu Kwak","doi":"10.1080/14686996.2023.2274818","DOIUrl":"https://doi.org/10.1080/14686996.2023.2274818","url":null,"abstract":"A gecko foot-inspired, mushroom-shaped artificial dry adhesive exploiting intermolecular forces between microstructure and surface has drawn research attention for its strong adhesive force. However, the high pull-off strength corresponding to the adhesive force matters when detaching fragile substrates. In this study, we present a vacuum-powered soft actuator with the dry adhesive, embeds oblique air chambers. The soft actuator performs coupled contraction and twisting by applying negative pneumatic pressure inward and exhibits not only high pull-off strength but also easy detachment. This effective detachment can be achieved thanks to twisting motion of soft actuator. The detachment performances of the actuator models are assessed using a 6-DOF robot arm. Results show that the soft actuators exhibit remarkable pull-off strength decrement from ~ 20 N cm−2 to ~ 2 N cm−2 due to the twisting. Finally, to verify a feasible application of this study, we utilize the inherent compliance of the actuators and introduce a glass transfer system for which a glass substrate on a slope is gripped by the flexibility of the soft actuators and delivers to the destination without any fracture.","PeriodicalId":21588,"journal":{"name":"Science and Technology of Advanced Materials","volume":" 39","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135191551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Structural, mechanical, electronic and optical properties of N-decorated single-walled silicon carbide nanotube photocatalyst for hydrogen evolution via water splitting: a DFT study 氮修饰单壁碳化硅纳米管光催化剂水裂解析氢的结构、机械、电子和光学性质:DFT研究

3区材料科学

Science and Technology of Advanced Materials Pub Date : 2023-11-06 DOI: 10.1080/14686996.2023.2271912

Yahaya Saadu Itas, Razif Razali, Salisu Tata, Mohammed Kolo, Hamid Osman, Abubakr M. Idris, Mayeen Uddin Khandaker

{"title":"Structural, mechanical, electronic and optical properties of N-decorated single-walled silicon carbide nanotube photocatalyst for hydrogen evolution via water splitting: a DFT study","authors":"Yahaya Saadu Itas, Razif Razali, Salisu Tata, Mohammed Kolo, Hamid Osman, Abubakr M. Idris, Mayeen Uddin Khandaker","doi":"10.1080/14686996.2023.2271912","DOIUrl":"https://doi.org/10.1080/14686996.2023.2271912","url":null,"abstract":"This work investigated the fundamental photocatalytic properties of nitrogen-doped single-walled silicon carbide nanotubes (N-doped SWSiCNTs) for hydrogen evolution for the first time. Investigations of the structural, mechanical, electronic, and optical properties of the studied systems were carried out using popular density functional theory implemented in quantum ESPRESSO and Yambo codes. Analysis of the structural properties revealed high mechanical stability with the 3.6% and 7.4% N-doped SWSiCNT. The calculated band gap of the N-doped SWSiCNT with 3.6% demonstrated a value of 2.56 eV which is within the photocatalytic range of 2.3 eV – 2.8 eV. The hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) potentials of the 3.6% N-doped SWSiCNT also showed good agreement with previous theoretical data. The studied material showed the best photocatalytic performance in both parallel and perpendicular directions by absorbing photons in the visible region. Therefore, the observed structural, mechanical, electronic and optical behaviors demonstrated by the 3.6% N-doped SWSiCNT exposed it as a better photocatalyst for hydrogen production under visible light.","PeriodicalId":21588,"journal":{"name":"Science and Technology of Advanced Materials","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135585023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Mesoporous bioactive glass nanoparticles with biomineralization activity for surgical hemorrhage control 具有生物矿化活性的介孔生物活性玻璃纳米颗粒用于外科出血控制

3区材料科学

Science and Technology of Advanced Materials Pub Date : 2023-11-06 DOI: 10.1080/14686996.2023.2279030

Shengyu Li, Xijin Wu, Jianglin Chen, Jinwei Wang, Lihong Gong, Jianyu Ni, Saifei Xi, Hong Zhang, Huiying Fu, Qiyang Shou

{"title":"Mesoporous bioactive glass nanoparticles with biomineralization activity for surgical hemorrhage control","authors":"Shengyu Li, Xijin Wu, Jianglin Chen, Jinwei Wang, Lihong Gong, Jianyu Ni, Saifei Xi, Hong Zhang, Huiying Fu, Qiyang Shou","doi":"10.1080/14686996.2023.2279030","DOIUrl":"https://doi.org/10.1080/14686996.2023.2279030","url":null,"abstract":"Bioactive glass nanoparticles (BGNs) are good bioactive materials for clinical treatment because of their unique composition and silica-oxygen network structure. Herein, we designed and reported a monodisperse mesoporous bioactive glass nanoparticles with biomineralization activity for surgical hemorrhage control. The results indicated that the BGNs have excellent biomineralization ability. In vivo and in vitro hemostasis studies suggested that BGNs has superior hemostatic properties to GZ (gauze) and GS (commercial gelatin sponge) and validated in vitro thrombosis, platelet adhesion, cytocompatibility and blood compatibility. The particles activated both endogenous and exogenous physiological coagulation pathways and could activate platelets and release Ca2+ to participate in the clotting pathway. Besides, the BGNs have good biocompatibility in vivo. These findings demonstrated the potential of small diameter mesoporous bioactive glass nanoparticles are likely useful for bleeding control as potential hemostatic agents.","PeriodicalId":21588,"journal":{"name":"Science and Technology of Advanced Materials","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135679832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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