Environmentally benign fabrication processes for high-performance polymeric semiconductors

2017 ◽  
Vol 5 (11) ◽  
pp. 2745-2757 ◽  
Author(s):  
Jangwhan Cho ◽  
Seong Hoon Yu ◽  
Dae Sung Chung
Keyword(s):  
High Performance ◽  
Environmentally Friendly ◽  
Environmentally Benign ◽  
Manufacturing Processes ◽  
Review Reports

This review reports on the development of polymeric semiconductors through environmentally friendly manufacturing processes, especially for transistor applications.

Green and facile preparation of graphene/resveratrol/polyaniline composites for high-performance supercapacitors

2021 ◽  
Vol 45 (7) ◽  
pp. 3581-3588
Author(s):  
Zhaokun Wang ◽  
Licong Jiang ◽  
Hongwei Pan ◽  
Yongyin Cui ◽  
Chengzhong Zong
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Environmentally Friendly ◽  
Reduced Graphene ◽  
Facile Preparation ◽  
Polyaniline Composites

A novel and environmentally-friendly resveratrol (RA) was used as an effective reagent for the preparation of reduced graphene oxide (rGO).

Construction and mechanistic understanding of high-performance all-air-processed perovskite solar cells via mixed-cation engineering

2021 ◽  
Author(s):  
Wenyuan Zhang ◽  
Lang He ◽  
Yuanchao Li ◽  
Dongyan Tang ◽  
Xin Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Manufacturing Processes ◽  
Mixed Cation ◽  
Mechanistic Understanding

All-air-processed perovskite solar cells (PSCs) have attracted increasing attention due to low cost and simplified manufacturing processes. At present, to fabricate efficient and stable PSCs in the air is expected....

scholarly journals Potentials of Vitrified and Elastic Bonded Fine Grinding Worms in Continuous Generating Gear Grinding

2021 ◽  
Vol 5 (1) ◽  
pp. 4
Author(s):  
Maximilian Schrank ◽  
Jens Brimmers ◽  
Thomas Bergs
Keyword(s):  
High Performance ◽  
Manufacturing Processes ◽  
Fine Grinding ◽  
Gear Grinding ◽  
Profile Line ◽  
Grinding Tool ◽  
Process Behavior ◽  
Hard Finishing ◽  
Tooth Flank ◽  
Process Strategy

Continuous generating gear grinding with vitrified grinding worms is an established process for the hard finishing of gears for high-performance transmissions. Due to the increasing requirements for gears in terms of power density, the required surface roughness is continuously decreasing. In order to meet the required tooth flank roughness, common manufacturing processes are polish grinding with elastic bonded grinding tools and fine grinding with vitrified grinding tools. The process behavior and potential of the different bonds for producing super fine surfaces in generating gear grinding have not been sufficiently scientifically investigated yet. Therefore, the objective of this report is to evaluate these potentials. Part of the investigations are the generating gear grinding process with elastic bonded, as well as vitrified grinding worms with comparable grit sizes. The potential of the different tool specifications is empirically investigated independent of the grain size, focusing on the influence of the bond. One result of the investigations was that the tooth flank roughness could be reduced to nearly the same values with the polish and the fine grinding tool. Furthermore, a dependence of the roughness on the selected grinding parameters could not be determined. However, it was found out that the profile line after polish grinding is significantly dependent on the process strategy used.

Development of Fully Biobased High-Performance Bis-Benzoxazine under Environmentally Friendly Conditions

2018 ◽  
Vol 6 (4) ◽  
pp. 5485-5494 ◽  
Author(s):  
Lloyd R. V. Kotzebue ◽  
Jéssica R. de Oliveira ◽  
Joane B. da Silva ◽  
Selma E. Mazzetto ◽  
Hatsuo Ishida ◽  
...  
Keyword(s):  
High Performance ◽  
Environmentally Friendly

Layer-dependent photocatalysts of GaN/SiC-based multilayer van der Waals heterojunctions for Hydrogen Evolution

2021 ◽  
Author(s):  
Bojun Peng ◽  
Liang Xu ◽  
Jian Zeng ◽  
Xiaopeng Qi ◽  
Youwen Yang ◽  
...  
Keyword(s):  
Band Gap ◽  
Hydrogen Evolution ◽  
High Performance ◽  
Van Der Waals ◽  
Environmentally Friendly ◽  
Wide Band ◽  
Two Dimensional ◽  
Wide Band Gap ◽  
Van Der Waals Heterostructures ◽  
Composite Photocatalysts

The development of non-precious, high-performance and environmentally friendly wide band gap semiconductor composite photocatalysts is highly desirable. Here we report two-dimensional (2D) GaN/SiC-based multilayer van der Waals heterostructures for hydrogen...

Tiefbohren von thermoplastischen Kunststoffen*/Single-lip deep hole drilling of thermoplastics

2016 ◽  
Vol 106 (05) ◽  
pp. 336-340
Author(s):  
D. Prof. Biermann ◽  
M. Kirschner
Keyword(s):  
Process Optimization ◽  
High Performance ◽  
Hole Drilling ◽  
Manufacturing Processes ◽  
Metallic Materials ◽  
Deep Hole ◽  
Deep Hole Drilling

Hochleistungskunststoffe gewinnen stetig an industrieller Bedeutung und ersetzen in zahlreichen Anwendungen metallische Werkstoffe. Um dieser Entwicklung auch aus fertigungstechnischer Sicht gerecht zu werden, ist die parallele Optimierung von relevanten Fertigungsverfahren unumgänglich. Das Institut für spanende Fertigung ISF der Technischen Universität Dortmund nimmt sich aktuell einer dieser Herausforderungen an und beschäftigt sich mit der Prozessoptimierung des Einlippentiefbohrens thermoplastischer Kunststoffe.   High-performance plastics are steadily gaining ground in the industry, replacing metallic materials in numerous applications. To keep pace with this development in manufacturing, a synchronous optimization of relevant manufacturing processes is crucial. The Institute of Machining Technology currently deals with one of these challenges, focusing on the process optimization of single-lip deep hole drilling of thermoplastics.

scholarly journals Synthesis of dibromo ketones by the reaction of the environmentally benign H2O2-HBr system with oximes

2012 ◽  
Vol 10 (2) ◽  
pp. 360-367 ◽  
Author(s):  
Alexander Terent’ev ◽  
Igor Krylov ◽  
Vera Vil’ ◽  
Zhanna Pastukhova ◽  
Sergey Fastov ◽  
...  
Keyword(s):  
Carbonyl Group ◽  
Environmentally Friendly ◽  
Environmentally Benign ◽  
Dibromo Ketones

AbstractIt was found that oximes undergo deoximation in the presence of the H2O2aq-HBraq system to form ketones and bromo ketones. This reaction provided the basis for the synthesis of dibromo ketones in yields varying from 40% to 94%. This method is environmentally friendly, sustainable, and easy to perform. The results of this investigation extend the potential of the use of oximes for the protection of carbonyl group, thus offering the ability to perform not only conventional deoximation but also the subsequent bromination of ketones. The reaction is easily scaled up and dibromo ketones can be prepared in gram amounts.

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