Ngo-Okthoba 15, abacwaningi eChalmers University of Technology eSweden badale ngempumelelo uhlobo olusha lwengilazi eqinile futhi ehlala isikhathi eside ngezicelo ezingenzeka kubandakanya nomuthi, izikrini ze-DIGICAL ezithuthukile. Ucwaningo lubonise ukuthi indlela yokuxuba ama-molecule amaningi (kuze kube ayisishiyagalombili ngesikhathi) kungakhiqiza impahla eyenza kahle njengoba ama-ejenti ahamba phambili ekwenza ama-glass akha ama-ejenti ahamba phambili awela ama-agents ahamba phambili.
Ingilazi, eyaziwa nangokuthi "Amorphous SOGEL", iyinto ebonakalayo ngaphandle kwesakhiwo eside esidala - ayikhi amakristalu. Ngakolunye uhlangothi, izinto ze-crystalline ziyizinto zokwakha ezinamaphethini a-oreasy futhi aphindaphindwayo.
Izinto ezivame ukusibiza ngokuthi "ingilazi" empilweni yansuku zonke zisekelwe ku-silica, kepha ingilazi ingenziwa ngezinto eziningi ezahlukahlukene. Ngakho-ke, abacwaningi bahlala benentshisekelo yokuthola izindlela ezintsha zokukhuthaza izinto ezahlukahlukene ukuthi bakhe lesi simo se-amorphous, esingaholela ekuthuthukisweni kwezibuko ezintsha nezicelo ezintsha. Ucwaningo olusha muva nje olushicilelwe kwi-Science Journal "Science Advances" lubonisa igxathu elibalulekile phambili kocwaningo.
Manje, ngokuxuba ama-molecule amaningi ahlukene, sasivuselela ngokuzumayo amandla okudala izinto zengilazi ezintsha nezingcono. Labo abafunda ama-molecule ezi-organic bayazi ukuthi ukusebenzisa ingxube yama-molecule amabili noma amathathu ahlukene kungasiza ekwenzeni ingilazi, kodwa bambalwa abangalindela ukuthi ukwengeza ama-molecule amaningi azofinyelela imiphumela emihle kangaka, "iqembu locwaningo laholela ocwaningweni. USolwazi Christian Müller ovela eMnyangweni weChemistry kanye nobunjiniyela bamakhemikhali be-ULMS University.
Imiphumela emihle kakhulu kunoma iyiphi impahla ekwakheka ingilazi
Lapho uketshezi luphola ngaphandle kwe-crystallization, kwakhiwa ingilazi, inqubo ebizwa ngokuthi i-vitrification. Ukusetshenziswa kwengxube yama-molecule amabili noma amathathu ukukhuthaza ukwakheka kwengilazi kungumqondo ovuthiwe. Kodwa-ke, umphumela wokuxubana inani elikhulu lama-molecule emandleni okusiza ingilazi uthole ukunakwa okuncane.
Abaphenyi bahlole ingxube yama-molekyuli ahlukene ayisishiyagalombili ahlukene, okukodwa ane-brittleness ephezulu - lesi sici sihlobene nokukhululeka lapho izinto ezibonakalayo zingilazi. Kepha ukuxuba ama-molecule amaningi ndawonye kuholela ekwehlisweni okukhulu kwe-brittleness futhi kwakha ingilazi eqinile kakhulu enobunzima obuphansi.
"Ubucwebe bengilazi esilwenzile ocwaningweni lwethu luphansi kakhulu, olumele ikhono elihle kakhulu elakha ingilazi. Asikalinganinga kuphela noma yiziphi izinto eziphilayo kuphela kepha futhi nama-polymers nezinto zokwakha i-inorganic (ezifana nengilazi yensimbi eningi). Imiphumela ingcono kakhulu kunengilazi ejwayelekile. Ikhono elakhelwe ingilazi lewindi lingenye yezindlela ezinhle kakhulu zeglasi esaziyo, "kusho uSandra Hulkmark, umfundi odokotela eMnyangweni weChemistry kanye nobunjiniyela bamakhemikhali kanye nombhali wokuhola ocwaningweni.
Nweba impilo yomkhiqizo bese ugcine izinsiza
Izicelo ezibalulekile ze-Organ Glass Ezinzile zibonisa ubuchwepheshe obufana nezikrini ezinama-oled kanye nobuchwepheshe bukagini obuvuselelekayo obufana namangqamuzana e-organic solar.
"Ama-Oleds akhiwa izingqimba zezingilazi zokukhanyisa ama-molecule ezi-organic. Uma zizinzile, kungakhuphula ukuqina kwama-oled futhi ekugcineni ukuqina kwesibonisi, "kuchaza uSandra Hulkmark.
Olunye uhlelo lokusebenza olungazuza kusuka ku-Stage ezinzile yizidakamizwa. Izidakamizwa ze-Amorphoous zincibilika ngokushesha, okusiza ukudonsa ngokushesha isithako esisebenzayo lapho kuncishisiwe. Ngakho-ke, izidakamizwa eziningi zisebenzisa amafomu enze izidakamizwa. Ezidakamizweni, kubalulekile ukuthi izinto ze-vitreous zingakhazimula ngokuhamba kwesikhathi. Lapho zizinza khona izidakamizwa ze-glass, isikhathi eside ishelufu yomuthi.
"Nge-Glass Ezinzile noma ingilazi entsha yokwenza izinto zokwakha, singanweba impilo yenkonzo yenani elikhulu lemikhiqizo, ngaleyo ndlela sisindise izinsiza kanye nomnotho," kusho uChristian Müller.
"Ukuvinjwa kwe-voinyruanperylenenenene inhlanganisela nge-ultra-low brittleness" kushicilelwe e-Science Journal "Science inqubekela phambili".
Isikhathi sePosi: Dec-06-2021