IiWindows zinegalelo elifikelela kwi-60% yamandla alahlekileyo kwizakhiwo.Kwimozulu eshushu, iifestile zifudumala ngaphandle, zikhupha amandla okushisa kwisakhiwo.Xa kubanda ngaphandle, iifestile zitshisa ngaphakathi, kwaye zikhupha ubushushu kwindawo engaphandle.Le nkqubo ibizwa ngokuba yi-radiative cooling.Oku kuthetha ukuba iifestile azisebenzi ekugcineni isakhiwo sishushu okanye sipholile njengoko kufuneka sibe njalo.

Ngaba kunokwenzeka ukuphuhlisa iglasi ekwazi ukulayita okanye ukucima oku kupholisa kwemitha ngokwayo ngokuxhomekeke kubushushu bayo?Impendulo nguewe.

Umthetho we-Wiedemann-Franz uthi ukuba ngcono ukuhanjiswa kombane kwizinto eziphathekayo, kungcono ukuqhutyelwa kwe-thermal.Nangona kunjalo, izinto ze-vanadium dioxide zihlukile, ezingawuthobeli lo mthetho.

Abaphandi bongeza umgca omncinci we-vanadium dioxide, i-compound eguqukayo ukusuka kwi-insulator ukuya kumqhubi malunga ne-68 ° C, ukuya kwelinye icala leglasi.I-Vanadium dioxide (VO2)yimathiriyeli esebenzayo eneempawu zenguqu zesigaba se-thermal.I-morphology yayo inokuguqulwa phakathi kwe-insulator kunye nesinyithi.Iziphatha njenge-insulator kwiqondo lobushushu begumbi kunye nanjenge-conductor yentsimbi kumaqondo obushushu angaphezu kwama-68°C.Oku kubangelwa ukuba isakhiwo sayo se-athomu sinokutshintshwa ukusuka kwisakhiwo sekristale yegumbi ukuya kwisakhiwo sesinyithi kumaqondo okushisa angaphezu kwama-68 ° C, kwaye utshintsho lwenzeka ngaphantsi kwe-nanosecond ye-1, eyinzuzo kwizicelo ze-elektroniki.Uphando olunxulumeneyo lukhokelele abantu abaninzi ukuba bakholelwe ukuba i-vanadium dioxide inokuba yinto eguqukayo kwishishini le-elektroniki elizayo.

Abaphandi kwiyunivesithi yaseSwitzerland bandise ubushushu besigaba se-vanadium dioxide ukuya ngaphezulu kwe-100 ° C ngokongeza i-germanium, into enqabileyo yesinyithi, kwifilimu ye-vanadium dioxide.Baye baphumelela kwizicelo ze-RF, besebenzisa i-vanadium diokside kunye ne-phase-change switching technology ukwenza i-ultra-compact, izihluzi zefrikhwensi ezinokutya okwesihlandlo sokuqala.Olu didi lutsha lwesihluzi lufanelekile ngakumbi kuluhlu lwamaza osasazo olusetyenziswa ziinkqubo zonxibelelwano lwasemajukujukwini.

Ukongezelela, iimpawu ezibonakalayo ze-vanadium dioxide, ezifana ne-resistivity kunye ne-infrared transmittance, ziya kutshintsha kakhulu ngexesha lenkqubo yokuguqulwa.Nangona kunjalo, izicelo ezininzi ze-VO2 zifuna ukuba ubushushu bube kufuphi nobushushu begumbi, njengale: iifestile ezihlakaniphileyo, ii-infrared detectors, njl., kunye ne-doping inokunciphisa ngokufanelekileyo iqondo lokushisa lokutshintsha kwesigaba.Into ye-Doping tungsten kwifilimu ye-VO2 inokunciphisa iqondo lokutshintsha kwesigaba sefilimu ukuya kwindawo ejikeleze ubushushu begumbi, ngoko ke i-tungsten-doped VO2 inethemba elibanzi losetyenziso.

Iinjineli zeHongwu Nano zafumanisa ukuba ubushushu besigaba sokutshintsha kwevanadium dioxide bunokulungiswa nge-doping, uxinzelelo, ubungakanani bengqolowa, njl njl. Izinto ze-doping zingaba yi-tungsten, tantalum, niobium kunye ne-germanium.I-Tungsten doping ithathwa njengeyona ndlela isebenzayo yedoping kwaye isetyenziswa ngokubanzi ukulungisa ubushushu besigaba sokutshintsha.I-Doping ye-1% ye-tungsten inokunciphisa ubushushu besigaba senguqu ye-vanadium dioxide films nge-24 °C.

Ukucaciswa kwesigaba esicocekileyo se-nano-vanadium dioxide kunye ne-tungsten-doped vanadium dioxide enokuthi ibonelelwe yinkampani yethu kwisitokhwe ngolu hlobo lulandelayo:

1. I-Nano vanadium diokside powder, i-undoped, isigaba esicocekileyo, iqondo lokushisa lokutshintsha kwesigaba yi-68 ℃

2. Vanadium diokside doped nge 1% tungsten (W1% -VO2), iqondo lotshintsho lwesigaba 43℃

3. Vanadium diokside doped nge 1.5% tungsten (W1.5% -VO2), iqondo lotshintsho lwesigaba 32℃

4. Vanadium diokside doped nge 2% tungsten (W2% -VO2), iqondo lotshintsho lwesigaba 25℃

5. Vanadium diokside doped nge 2% tungsten (W2% -VO2), iqondo lotshintsho lwesigaba 20℃

Ukukhangela phambili kwikamva elikufutshane, ezi festile ezihlakaniphile ezine-tungsten-doped vanadium dioxide zingafakelwa kwihlabathi jikelele kwaye zisebenze unyaka wonke.