Icho chitubu chekusingaperi chesimba remahara. Thermal mafambiro egraphene anoshandurwa kuita magetsi

Masayendisiti epaYunivhesiti yeArkansas akagadzira hurongwa hunogona kugadzira magetsi kubva mukupisa kwe graphene. Jenareta yesimba yakavakirwa pahwaro hwayo ine mukana wekushanda kwenguva yakareba Inguva yakareba sei izvi zvese zvichange zviri patembiricha yakajairika - zvirinani iyi idzidziso yakagadzirwa makore matatu apfuura.

Graphene simba jenareta. Zvichida kwete zvemichina, asi ye microsensors - hongu. Mune ramangwana

Graphene i "shiti" remaatomu ecarbon akabatanidzwa ne single and double bond. Maatomu akarongwa mumativi ane hexagoni uye anoita chimiro chakati sandara atomu imwe yakakora, izvo zvinopa graphene huwandu hwezvinhu zvinoshamisa. Imwe yacho ndeyekupisa kwekufamba kunokonzera kuunyana uye deformations pa graphene sheet.

Graphene pasi pe TEAM 0.5 transmission electron maikorosikopu yakagadzirwa nechikwata chepaUniversity of California, Berkeley. Ma vertice eyero maatomu ecarbon, maburi matema ari mukati me hexagons. Kana iwe uchifunga kuti dema riri kunongedzera kuruboshwe, mira zvishoma, edza kuronda yero kabhoni mutsara kumucheto kwekurudyi, kana kurodha mufananidzo mupepeti wemufananidzo uye nekukasira kutenderedza 90-180 madhigirii. MuIrfanView, izvi zvinogona kuitwa nekudzvanya bhatani reR(c) NCEM, University of California, Berkeley.

Masayendisiti epaYunivhesiti yeArkansas akaburitsa dzidziso makore matatu apfuura yakaratidza kuti kushandura chimiro chepamusoro pegraphene kunogona kushandiswa kugadzira simba. Izvi zvaipesana nekuverenga kwaRichard Feynman, asi zvakazoitika kuti graphene patembiricha yemumba inogona kuburitsa ikozvino inochinja.

Zvishoma nezvishoma kutsvedza graphene yakakonzera yakaderera-frequency alternating ikozvino, uye sisitimu yakagadziridzwa nemasaenzi yakaishandura kuita pulsating yakananga ikozvino (DC) uye yakawedzera kuikudza (mabviro). Izvi zvakakosha nekuti zvemagetsi zvinoshanda zvakanyanya pane yakaderera frequency.

Zvichida zvakanyanya zvinopesana ndezvekuti resistor inoshandiswa muhurongwa haina kupisa panguva yekushanda. Sezvo simba rakabva pakushandura mafambiro ekupisa kuva magetsi, chiyero chakachengetwa. Kana magetsi apera, resistor inofanira kutonhora pasi.

Mushure mekuvaka dhiyabhorosi-yakagadzirwa inoratidza kuti dzidziso inoshanda mukuita (PoC), Masayendisiti iye zvino ari kushanda pamusoro pekugona kuchengetedza simba rinogadzirwa muhurongwa mune capacitor. Sezvakangoita mune animation iri pazasi (girinhi - negative charges, tsvuku - maburi, positive charge):

Nhanho inotevera ndeyekuita miniaturize zvese uye kuvaka pane silicon wafer. Kana ikabudirira, uye kana zvichibvira kubatanidza miriyoni yakadaro masisitimu mune imwe microcircuit, inogona kushanda seinenge isingafi generator yemagetsi.

Icho chitubu chekusingaperi chesimba remahara. Iko kupisa kwekufamba kwegraphene kunoshandurwa kuita magetsi