Windows e kenya letsoho hoo e ka bang 60% ea matla a lahlehileng meahong.Boemong ba leholimo bo chesang, lifensetere li futhumatsoa ka ntle, li hlahisa matla a mocheso mohahong.Ha ho bata ka ntle, lifensetere lia futhumala ho tsoa ka hare, ’me li ntša mocheso tikolohong e ka ntle.Ts'ebetso ena e bitsoa "radiative cooling".Sena se bolela hore lifensetere ha li atlehe ho boloka mohaho o futhumetse kapa o pholile kamoo o lokelang ho ba kateng.

Na ho ka khoneha ho etsa khalase e ka bulelang kapa ea tima phello ee ea ho pholisa ka mahlaseli ka botsona ho latela mocheso oa eona?Karabo ke e.

Molao oa Wiedemann-Franz o bolela hore ho ntlafala ha motlakase oa thepa, ho ntlafatsa mocheso oa mocheso.Leha ho le joalo, thepa ea vanadium dioxide ke mokhelo, e sa mameleng molao ona.

Bafuputsi ba kentse lesela le tšesaane la vanadium dioxide, motsoako o fetohang ho tloha ho insulator ho ea ho conductor hoo e ka bang 68 ° C, ho ea lehlakoreng le leng la khalase.Vanadium dioxide (VO2)ke sesebelisoa se sebetsang se nang le litšobotsi tse tloaelehileng tsa phetoho ea karolo e susumetsoang ke mocheso.Morpholoji ea eona e ka fetoloa lipakeng tsa insulator le tšepe.E sebetsa joalo ka insulator mochesong oa kamore le joalo ka conductor ea tšepe mochesong o kaholimo ho 68°C.Sena se bakoa ke taba ea hore sebopeho sa eona sa athomo se ka fetoloa ho tloha mohahong oa kristale oa mocheso oa kamoreng ho ea mohahong oa tšepe ka mocheso o ka holimo ho 68 ° C, 'me phetoho e etsahala ka tlase ho 1 nanosecond, e leng molemo bakeng sa lisebelisoa tsa elektronike.Lipatlisiso tse amanang le tsona li entse hore batho ba bangata ba lumele hore vanadium dioxide e ka fetoha sesebelisoa sa phetoho bakeng sa indasteri ea nakong e tlang ea elektroniki.

Bafuputsi univesithing ea Switzerland ba ile ba eketsa mocheso oa phallo ea vanadium dioxide ho ea holimo ho 100 ° C ka ho eketsa germanium, thepa e sa tloaelehang ea tšepe, filiming ea vanadium dioxide.Ba entse khatelo-pele lits'ebetsong tsa RF, ba sebelisa vanadium dioxide le theknoloji ea ho fetola phasewete ho theha li-filter tsa maqhubu a ultra-compact, tse fetolehang ka lekhetlo la pele.Mofuta ona o mocha oa filthara o loketse haholo mefuta ea maqhubu a sebelisoang ke litsamaiso tsa puisano tsa sebaka.

Ho phaella moo, thepa ea 'mele ea vanadium dioxide, e kang resistivity le transmittance infrared, e tla fetoha haholo nakong ea phetoho.Leha ho le joalo, lits'ebetso tse ngata tsa VO2 li hloka hore mocheso o be haufi le mocheso oa kamore, joalo ka: lifensetere tse bohlale, li-detectors tsa infrared, joalo-joalo, le doping li ka fokotsa mocheso oa phetoho ea mohato ka katleho.Doping tungsten element ka filimi ea VO2 e ka fokotsa mocheso oa phetoho ea filimi ho ea ho mocheso oa kamore, kahoo VO2 ea tungsten-doped e na le menyetla e pharaletseng ea ts'ebeliso.

Lienjineri tsa Hongwu Nano li fumane hore mocheso oa phallo ea vanadium dioxide o ka fetoloa ka doping, khatello ea maikutlo, boholo ba lijo-thollo, joalo-joalo Lintho tsa doping e ka ba tungsten, tantalum, niobium le germanium.Tungsten doping e nkoa e le mokhoa o sebetsang ka ho fetisisa oa doping 'me o sebelisoa haholo ho fetola mocheso oa phetoho ea mohato.Doping 1% tungsten e ka fokotsa mocheso oa phetoho ea karolo ea lifilimi tsa vanadium dioxide ka 24 °C.

Litlhaloso tsa pure-phase nano-vanadium dioxide le tungsten-doped vanadium dioxide tseo k'hamphani ea rona e ka fanang ka tsona ho tsoa setokong ke tse latelang:

1. Nano vanadium dioxide phofo, e sa koaloang, mohato o hloekileng, mocheso oa phetoho ea mohato ke 68 ℃

2. Vanadium dioxide e nang le 1% tungsten (W1% -VO2), mocheso oa phetoho ea mohato ke 43℃

3. Vanadium dioxide e nang le 1.5% tungsten (W1.5% -VO2), mocheso oa phetoho ea mohato ke 32℃

4. Vanadium dioxide e nang le 2% tungsten (W2% -VO2), mocheso oa phetoho ea mohato ke 25 ℃

5. Vanadium dioxide e nang le 2% tungsten (W2% -VO2), mocheso oa phetoho ea mohato ke 20 ℃

Ha re lebeletse bokamoso bo haufi, lifensetere tsena tse bohlale tse nang le vanadium dioxide e entsoeng ka tungsten li ka kenngoa lefatšeng lohle ’me tsa sebetsa selemo ho pota.