Uvod in uporaba ozadja enostenskih ogljikovih nanocevk
Single-walled Carbon Nanotubes (SWCNTs) are tubular structures formed by closely curling a Single layer of graphene, and their diameter dimensions are usually between 0.4 and 2 nanometers. Single-walled carbon nanotubes possess an extremely high carrier mobility. With an ultra-high carrier mobility of 5cm²/V·s, an astonishing elastic modulus of approximately 1TPa, and an outstanding thermal conductivity of 3500W/m·K, this material holds significant potential in industries such as new energy vehicles and flexible electronics. Since scientists successfully synthesized this material for the first time in 1993, SWCNTs have attracted extensive attention in the scientific community due to their excellent electrical conductivity and so spodbujali napredek raziskav na različnih naprednih področjih aplikacij.
Edinstvene lastnosti enostenskih ogljikovih nanocevk
"Mehanske lastnosti"
The carbon atoms inside single-walled carbon nanotubes are closely connected by CC covalent bonds, and this structure endows it with excellent axial strength, toughness and elastic modulus. The experimental results show that its Young's modulus is as high as 1TPa, comparable to that of diamond and far exceeding that of steel by five times. Meanwhile, single-walled Ogljikove nanocevke imajo presenetljivo osno moč, ki je več kot stokrat od jekla . Poleg tega lahko njegova elastičnost doseže 5% do 12%, kar je 60 -krat večjo kot jeklo, kar v celoti prikazuje njegovo odlično žilavost in prilagodljivost .
Električna zmogljivost
Single-walled carbon nanotubes exhibit outstanding electrical properties due to their unique helical tubular structure. Theoretical analysis shows that the way electrons are transported within them is similar to ballistic transport, which endows single-walled carbon nanotubes with extraordinary current-carrying capacity. Unlike other substances, single-walled carbon nanotubes can flexibly regulate their Prevodnost s spreminjanjem kiralnega kota in premera in doseganjem natančnega nadzora nad velikostjo energijske vrzeli . Imajo izjemno veliko zmogljivost za nošenje toka in prikazujejo neprimerljivo superiornost .
Toplotna zmogljivost
Carbon nanotubes not only perform well in the field of electrical conductivity, but also have excellent thermal properties. Similar to excellent thermal conductors such as graphite and diamond, carbon nanotubes also possess outstanding axial heat conduction capabilities, making them ideal thermal conductive materials. Its axial thermal conductivity is as high as 6600 W/m·K, which Lahko je celo primerljiva z enoslojno grafenom . pri sobni temperaturi je toplotna prevodnost ene same enostenske ogljikove nanocevke blizu 3500 w/m · K, kar je veliko več kot pri diamantu in grafitu ., ki je toplotna uspešnost v vertikalni smeri relacijsko relativno nizka {{8}
Optična zmogljivost
Enostenske ogljikove nanocevke kažejo edinstvene optične lastnosti zaradi svoje značilne strukture . znanstveniki so preučevali njegove optične lastnosti z različnimi tehnikami, kot so Ramanova spektroskopija, fluorescenčna spektroskopija in ultravioleta-vizija, ki je bila v višini, ki je bila v višini, infraring-vira-vira-vira, ki je bila v višini, infrarirani spektrosopiji. {5} (RBM) se pojavi na približno 200nm, ki zagotavlja učinkovit pristop za mikrostrukturno analizo ogljikovih nanocevk in identifikacijo enostenskih ogljikovih nanocevk .. Poleg