Nanografi Nanotechnology

In electronics, solders are main material to connect electrical components to substrates which are generally printed circuit boards. Although they are cheap, they are not effective if long term performance is considered since solders have low resistivity to corrosion relatively. Since corrosion reduce reliability, the cost of advanced technological systems such as RADAR, SONAR, LIDAR and more increase. In addition, small signals can be lost, and in huge data transfer, some of the data can be lost also especially which may lead catastrophic failures in critical systems. For instance, surface to air missiles can be launched to target which is not exist if the data coming from detection systems is noisy. Therefore, corrosion protection is necessary, and  silver conductive adhesive paste  is an essential candidate to replace PbSn solders due to its resistivity to corrosion. Silver conductive adhesive paste provide not only noisy reduction but also electromagnetic interference whi...

Conductive adhesive paste is the glue form of conductive adhesive, and more advantageous than soldering processes. Since it is more flexible than solder, it is able to cope with vibrations better, and its curing temperature is below the soldering temperature which is important when soldering temperature can be harmful for substrates, so conductive adhesive paste is excellent way for electrical connections on temperature-sensitive substrates, and components.  Silver conductive adhesive paste  is the most conductive one in  conductive adhesives , and circuit resistivity 8.0x10 -6 Ω cm for highly conductive paste. Therefore, it is commonly used in applications in which low electrical resistance needed.                                                                              ...

Carbon nanotubes  called cylindrical nanostructured allotropes of carbon with a one atom thick, and the diameter depends on the purpose of applications. Carbon nanotubes have extraordinary properties in mechanics and electrics, especially stiffness and strength. Its qualities make carbon nanotubes valuable for nanotechnology, electronics, optics, and fields of material science. Number of walls classify the carbon nanotubes as single-walled,  double-walled , triple walled, and  multi walled . Multi-walled means there are multiple nanotubes inside the other nanotubes with different diameters, and there is nothing inside the nanotubes in the case of single-walled nanotube.              Figure 1: Schematic representation of Single Walled Carbon Nanotube (SWCNT) and Multi Walled Carbon Nanotube (MWCNT)                               https://www.researchgate.net/p...

Carbon atoms bounded together to form repeated hexagon patterns is called  Graphene , and it is considered as 2-d crystal structure. Due to its shape, it has unique properties such as both the strongest, and the lightest material in the world, most conductive, and transparent. Although the graphene is expensive and relatively hard to manufacture, effective and inexpensive graphene derivatives can be produced.  Graphene oxide (GO)  is one of these, and it is oxidized form of graphene, so one can make graphene via dispersion of graphene oxide in water and also other solvents.  Graphene oxide  is not a good conductor even it is considered as electrical insulator, but functionalization can be done depending on the application such as optoelectronics, bio-devices, and drug-delivery systems.                                                   ...