A high dielectric constant non-fullerene acceptor for efficient bulk-heterojunction organic solar cells

2018 ◽  
Vol 6 (2) ◽  
pp. 395-403 ◽  
Author(s):  
Xi Liu ◽  
Boming Xie ◽  
Chunhui Duan ◽  
Zhaojing Wang ◽  
Baobing Fan ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Solar Cells ◽  
Organic Solar Cells ◽  
High Dielectric Constant ◽  
Bulk Heterojunction ◽  
Relative Dielectric Constant ◽  
High Dielectric

A non-fullerene acceptor with a high relative dielectric constant (εr) over 9 is developed. It offers an efficiency of 8.5%, which is the best result for organic solar cells employing high εr materials. Further research should focus on morphology optimization to make high εr practically useful in devices.

Ring-perfluorinated non-volatile additives with a high dielectric constant lead to highly efficient and stable organic solar cells

2019 ◽  
Vol 7 (16) ◽  
pp. 4716-4724 ◽  
Author(s):  
Jiyeon Oh ◽  
Sungwoo Jung ◽  
Mingyu Jeong ◽  
Byongkyu Lee ◽  
Jungho Lee ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Solar Cells ◽  
Organic Solar Cells ◽  
High Dielectric Constant ◽  
Polymer Additives ◽  
Highly Efficient ◽  
New Processing ◽  
High Dielectric

With the increasing concern for discovering a new processing additive, the effects of polymer additives (PS, PS-b-PPFS and PPFS) were thoroughly investigated for OSCs.

scholarly journals Utilizing Wide Band Gap, High Dielectric Constant Nanoparticles as Additives in Organic Solar Cells

2015 ◽  
Vol 119 (42) ◽  
pp. 23883-23889 ◽  
Author(s):  
Ryan S. Gebhardt ◽  
Pengfei Du ◽  
Akshit Peer ◽  
Mitch Rock ◽  
Michael R. Kessler ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
High Dielectric Constant ◽  
Wide Band ◽  
Wide Band Gap ◽  
High Dielectric

High-Dielectric Constant Side-Chain Polymers Show Reduced Non-Geminate Recombination in Heterojunction Solar Cells

2014 ◽  
Vol 4 (10) ◽  
pp. 1301857 ◽  
Author(s):  
Namchul Cho ◽  
Cody W. Schlenker ◽  
Kristina M. Knesting ◽  
Patrick Koelsch ◽  
Hin-Lap Yip ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Solar Cells ◽  
High Dielectric Constant ◽  
Side Chain ◽  
Geminate Recombination ◽  
Heterojunction Solar Cells ◽  
High Dielectric

Cancellation Effect in Three-Phases TiO2/(PVDF+Fe3O4) Composites

2012 ◽  
Vol 463-464 ◽  
pp. 431-434 ◽  
Author(s):  
Hong Qiang Shan ◽  
Xin Ming Wang ◽  
Wei Ping Li
Keyword(s):  
Dielectric Constant ◽  
Synergistic Effect ◽  
Composite System ◽  
High Dielectric Constant ◽  
Relative Dielectric Constant ◽  
Dielectric Measurement ◽  
Low Loss ◽  
Measurement Results ◽  
High Dielectric ◽  
Multiphase Composite

In order to obtain the high dielectric constant and low loss materials by using the two main methods for synergy, the 3-phases TiO2/(PVDF+Fe3O4) composites with the fixed Fe3O4 fraction have been prepared by using a simple blending and hot-molding technique. The dielectric measurement results show that no synergistic effect but a cancellation effect has been found here, corresponding to the decrease of dielectric constant and conductivity. The value of the relative dielectric constant dropped to the original level of polymer matrix. The reasons for the counter result are present here. It is helpful and reference for the proper choice for multiphase composite system.

Research on Mechanical Design with Beidou GPS Navigation Antenna Design Terminal

2013 ◽  
Vol 345 ◽  
pp. 416-420
Author(s):  
Guo Zhi Chen ◽  
Guo Tong Chen ◽  
Jian Sun ◽  
Jing Miao
Keyword(s):  
Dielectric Constant ◽  
Microstrip Antenna ◽  
High Dielectric Constant ◽  
Mechanical Design ◽  
Relative Dielectric Constant ◽  
Satellite Navigation ◽  
Microwave Dielectric Ceramics ◽  
Microwave Dielectric ◽  
Dielectric Ceramics ◽  
High Dielectric

With advances in technology and machinery manufacturing technology, the satellite navigation system plays a more and more important role in the modern society. People demand increasingly for satellite navigation. Satellite navigation is increasingly used in military systems, so military and civilian value is higher and higher. For the satellite signal reception, microstrip antenna plays an indispensable role. As the mechanical design of microstrip antenna is simple, easy manufacture, low cost, smaller size, lighter weight, with the overall unity of active devices and integrated circuit, etc. The successful development of high dielectric constant ceramic material enables the area of microstrip antenna to narrow several times. Microwave dielectric ceramics material has some merits such as high dielectric constant, thermal stability and excellent characteristics of small dielectric loss. Different dielectric constant substrate can be prepared through changing and doping modification of process parameters, including the relative dielectric constant of microwave dielectric ceramics for more than a few dozens which can be used for different microwave frequencies. Those are important reasons for promoting the development of microstrip antenna.

Effect of the Difference in Dielectric Constant of the Phases on Dielectric Property of the Composites

2015 ◽  
Vol 814 ◽  
pp. 137-143
Author(s):  
Hao Zhou ◽  
Qing Meng Zhang ◽  
Qun Tang ◽  
Hang Cui ◽  
Yao Hua Xu ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Dielectric Properties ◽  
High Dielectric Constant ◽  
Dielectric Breakdown ◽  
Breakdown Strength ◽  
Ferroelectric Properties ◽  
Relative Dielectric Constant ◽  
Practical Application ◽  
The Difference ◽  
High Dielectric

The composites have a great use in practical application. In common, the phases in composite have different relative dielectric constant and in order to reveal how the phases with different permittivity affect the composite’s dielectric properties, the experiments were carried out using inorganic and organic composite with different dielectric constant phases to make that clear. The barium niobate-based SiO2system glass–ceramic and fillers-epoxy resin composites were chosen, and the dielectric properties were tested to compare the difference of those composites. The results show that the existence of high dielectric constant phases in composites can improve the permittivity of composites and make the composites present ferroelectric properties, while the dielectric loss can also increased, and the difference in dielectric constant of the phases can decrease the dielectric breakdown strength.

Enhanced performance of supercapacitors by constructing a “mini parallel-plate capacitor” in an electrode with high dielectric constant materials

2020 ◽  
Vol 8 (32) ◽  
pp. 16661-16668
Author(s):  
Huayao Tu ◽  
Shouzhi Wang ◽  
Hehe Jiang ◽  
Zhenyan Liang ◽  
Dong Shi ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Carbon Fiber ◽  
Parallel Plate ◽  
Sandwich Structure ◽  
High Dielectric Constant ◽  
Parallel Plate Capacitor ◽  
Plate Capacitor ◽  
Fiber Metal ◽  
High Dielectric ◽  
Mini Plate

The carbon fiber/metal oxide/metal oxynitride layer sandwich structure is constructed in the electrode to form a mini-plate capacitor. High dielectric constant metal oxides act as dielectric to increase their capacitance.

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