Nanomanufacturing and Metrology最新文献_第7页

Structure of the Charge-Transfer State in PM6/Y6 and PM6/Y6:YT Composites Studied by Electron Spin Echo Technique 电子自旋回波技术研究PM6/Y6和PM6/Y6:YT复合材料的电荷转移态结构

Nanomanufacturing and Metrology Pub Date : 2023-04-04 DOI: 10.3390/nanomanufacturing3020008

E. A. Lukina, Aina V. Kulikova, M. N. Uvarov, A. Popov, Minghao Liu, Yong Zhang, L. Kulik

{"title":"Structure of the Charge-Transfer State in PM6/Y6 and PM6/Y6:YT Composites Studied by Electron Spin Echo Technique","authors":"E. A. Lukina, Aina V. Kulikova, M. N. Uvarov, A. Popov, Minghao Liu, Yong Zhang, L. Kulik","doi":"10.3390/nanomanufacturing3020008","DOIUrl":"https://doi.org/10.3390/nanomanufacturing3020008","url":null,"abstract":"Nowadays, Y-shaped non-fullerene acceptors become increasingly important in organic photovoltaics (OPV). Their use in binary and ternary bulk heterojunction composites continuously pushes up the efficiency of OPV devices. However, the mechanism of OPV performance enhancement by the third component of a ternary composite is rarely understood. In the present work, pulse EPR technique was used to reveal the similarities and the differences of photoinduced charge separation process in binary PM6/Y6 and ternary PM6/Y6:Y-T composites, where PM6 is polymer donor, Y6 and Y-T are different non-fullerene acceptors. Out-of-phase electron spin echo signal was detected for both composites, which is the signature of the charge-transfer state (CT state) formed at the donor/acceptor interface upon exciton splitting. Nearly identical distribution of the distances between the electron and the hole constituting the CT state was obtained for these composites from the analysis of this signal. In both cases the average electron-hole distance was 3.5 nm. It implies that OPV efficiency increase with Y-T addition is not caused by the increased probability of CT state dissociation followed by free charge generation for PM6/Y6:Y-T composite.","PeriodicalId":52345,"journal":{"name":"Nanomanufacturing and Metrology","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85451262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Precision Measurement of Complex Optics Using a Scanning-Point Multiwavelength Interferometer Operating in the Visible Domain 使用扫描点多波长干涉仪在可见光域中进行复杂光学的精密测量

Nanomanufacturing and Metrology Pub Date : 2023-04-03 DOI: 10.1007/s41871-023-00191-9

M. Wendel

引用次数: 2

A Comparison of Wavelet Packet, Wavelet Leaders Multifractal, and p-Leader Multifractal Method in Chatter Detection 小波包、小波前导多重分形和p前导多重分形方法在颤振检测中的比较

Nanomanufacturing and Metrology Pub Date : 2023-03-27 DOI: 10.1007/s41871-023-00188-4

Zehui Zheng, Xiubing Jing, Yangyang Wang, Xiaofei Song, Huaizhong Li

引用次数: 0

Carbon Dot-Modified TiO2@SiO2 Aerogel as an Anode for Lithium-Ion Batteries 碳点修饰TiO2@SiO2气凝胶作为锂离子电池的阳极

Nanomanufacturing and Metrology Pub Date : 2023-03-20 DOI: 10.1007/s41871-023-00189-3

Zanyu Chen, Jiugang Hu, Kuixing Ding, Jun Tan, Hongshuai Hou, Xiaobo Ji

引用次数: 1

Design and Testing of a Novel Piezoelectric-Driven Microvibration Hammerhead 一种新型压电微振动锤头的设计与测试

Nanomanufacturing and Metrology Pub Date : 2023-03-20 DOI: 10.1007/s41871-023-00182-w

Zhiyong Guo, Zhemin Shen, Weidong Liu, Zhiqiang Zhang, Lifeng Zhang, Xuhao Wang

引用次数: 0

Preparation of Polycarbazole Nanofibers Using an Electric Field and the Investigation of Its Electrical Conductivity 电场法制备聚咔唑纳米纤维及其电导率研究

Nanomanufacturing and Metrology Pub Date : 2023-03-17 DOI: 10.3390/nanomanufacturing3010007

S. H. Hosseini, Amir Abbas Kazemi, Seyed Arash Hosseini

{"title":"Preparation of Polycarbazole Nanofibers Using an Electric Field and the Investigation of Its Electrical Conductivity","authors":"S. H. Hosseini, Amir Abbas Kazemi, Seyed Arash Hosseini","doi":"10.3390/nanomanufacturing3010007","DOIUrl":"https://doi.org/10.3390/nanomanufacturing3010007","url":null,"abstract":"In conventional chemical and electrochemical oxidation methods, it is very difficult to control the active centers, and the average prepared polymers are short and wide. The use of an electric field creates the most stable intermediate form of active centers, as well as permitting a longer half-life. Therefore, this increases the physical resistance and electrical conductivity of the polymer. In this paper, polycarbazole nanofibers were prepared using an electric field, reporting on its influences on the polymerization of carbazole. Therefore, its electrical conductivity and some physical properties were investigated. We observed the nanofibers’ shape, increasing electrical conductivity, thermal resistance and a higher molecular weight with the synthesized polycarbazole under an electric field compared to the polymer synthesized in the same conditions in the absence of an electric field. First, we chemically synthesized polycarbazole at different times. Additionally, to find the optimizing conditions, we changed certain parameters, such as the ratio of the obtained molar of initiator to monomer, the oxidant, initiator and solvent, separately, and compared the obtained results. Then, we repeated this reaction in the best conditions and under different electric fields in constant time, allowing us to characterize the shape, mass and conductivity. Next, the polymerization was carried out at the best electric field in different times. Finally, the best time and amount of electric field for polymerization were determined. The electrical conductivity of polycarbazoles was studied with the four-probe method. The conductivity of the films oxidized using FeCl3 (dry) and protonated with p-toluenesulfonic acid (PTSA) at 3 h was higher than 8.9 × 10−4 S/cm under a 12 KV/m electric field. Additionally, the results showed an enhanced thermal resistance to ageing.","PeriodicalId":52345,"journal":{"name":"Nanomanufacturing and Metrology","volume":"76 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85562128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optical Frequency Comb Frequency-division Multiplexing Dispersive Interference Multichannel Distance Measurement 光频梳频分复用色散干扰多通道距离测量

Nanomanufacturing and Metrology Pub Date : 2023-03-16 DOI: 10.1007/s41871-023-00185-7

Xu Liang, Tengfei Wu, Jiarui Lin, Linghui Yang, Jigui Zhu

引用次数: 2

Silicon Vacancy Color Centers in 6H-SiC Fabricated by Femtosecond Laser Direct Writing 飞秒激光直写制备6H-SiC中硅空位色心

Nanomanufacturing and Metrology Pub Date : 2023-03-16 DOI: 10.1007/s41871-023-00186-6

Zhanqi Zhou, Zongwei Xu, Ying Song, Changkun Shi, Kunde Zhang, Bing Dong

引用次数: 0

Investigation of Nanoscale Scratching on Copper with Conical Tools Using Particle-Based Simulation 基于颗粒模拟的锥形刀具对铜的纳米刻划研究

Nanomanufacturing and Metrology Pub Date : 2023-03-14 DOI: 10.1007/s41871-023-00179-5

Anuj Sharma, S. Kulasegaram, E. Brousseau, K. Esien, Dan Read

引用次数: 1

Formation of Laser-Induced Periodic Surface Structures on Reaction-Bonded Silicon Carbide by Femtosecond Pulsed Laser Irradiation 飞秒脉冲激光辐照下反应键合碳化硅激光诱导周期表面结构的形成

Nanomanufacturing and Metrology Pub Date : 2023-03-10 DOI: 10.1007/s41871-023-00184-8

T. Meshram, Jiwang Yan

引用次数: 1