Ita ce madawwamin tushen kuzari na kyauta. Thermal motsi na graphene aka tuba zuwa wutar lantarki

Masana kimiyya a Jami'ar Arkansas sun kirkiro wani tsarin da zai iya samar da wutar lantarki daga motsin zafi na graphene. Mai samar da makamashi da aka gina akan sa yana da damar yin aiki na tsawon lokaci tsawon lokacin da duk wannan zai kasance a yanayin zafi na yau da kullun - aƙalla wannan ka'idar ce da aka haɓaka shekaru uku da suka gabata.

Graphene makamashi janareta. Wataƙila ba don inji ba, amma ga microsensors - a. Nan gaba

Graphene “sheet” ne na atom ɗin carbon da ke haɗe ta ɗaiɗai ɗaya da biyu. Atom ɗin an jera su a cikin hexagons kuma suna samar da tsarin lebur ɗin zarra ɗaya mai kauri, wanda ke ba graphene yawan kaddarorin ban mamaki. Ɗayan su shine motsi na thermal wanda ke haifar da wrinkles da deformations akan takardar graphene.

Graphene a ƙarƙashin TEAM 0.5 na'ura mai ba da hanya tsakanin hanyoyin sadarwa na lantarki wanda wata ƙungiya ta haɓaka a Jami'ar California, Berkeley. Matsakaicin rawaya su ne carbon atom, baƙar fata suna cikin hexagons. Idan kuna tunanin baƙar fata yana nuni zuwa hagu, jira ƴan daƙiƙa, gwada gano ratsin carbon rawaya zuwa gefen dama, ko loda hoton a cikin editan hoto kuma da sauri juya shi 90-180 digiri. A cikin IrfanView, ana iya yin haka ta latsa maɓallin R(c) NCEM, Jami'ar California, Berkeley.

Masana kimiyya a Jami'ar Arkansas sun buga wani ka'idar shekaru uku da suka gabata wanda ya nuna cewa za'a iya amfani da canza siffar saman graphene don samar da makamashi. Wannan ya ci karo da lissafin Richard Feynman, amma ya zamana cewa graphene a zafin daki na iya haifar da canjin yanayi.

Graphene mai lalacewa sannu a hankali ya haifar da ƙarancin mitar wutar lantarki, kuma tsarin da masana kimiyya suka kirkira ya canza shi zuwa pulsating direct current (DC) kuma ya ƙara haɓaka shi (source). Wannan yana da mahimmanci saboda na'urorin lantarki suna aiki da kyau a ƙananan mita.

Wataƙila abin da ya fi dacewa shi ne cewa resistor da aka yi amfani da shi a cikin tsarin bai yi zafi ba yayin aiki. Tun da makamashi ya fito ne daga canza motsi na thermal zuwa wutar lantarki, an kiyaye ma'auni. Idan wutar lantarki ta ƙare, ya kamata resistor ya huce.

Bayan gina hoton da aka shirya wanda ke tabbatar da cewa ka'idar tana aiki a aikace (PoC), Masana kimiyya yanzu suna aiki akan yiwuwar adana makamashin da aka samar a cikin tsarin a cikin capacitor. Kamar dai a cikin raye-rayen da ke ƙasa (kore - caji mara kyau, ja - ramuka, tabbataccen caji):

Mataki na gaba shine rage shi duka kuma gina akan wafer silicon. Idan ya yi nasara, kuma idan yana yiwuwa a haɗa miliyoyin irin waɗannan tsarin a cikin microcircuit guda ɗaya, zai iya aiki a matsayin janareta na wutar lantarki kusan marar mutuwa.

Ita ce madawwamin tushen kuzari na kyauta. The thermal motsi na graphene aka canza zuwa wutar lantarki