Ka October 15th, bafuputsi Univesithing ea Theknoloji ea Chalmers ea Sweden ba atlehile ho theha mofuta o mocha oa khalase e tsitsitseng le e tšoarellang e nang le lisebelisoa tse ka 'nang tsa e-ba teng ho akarelletsa le meriana, li-skrini tse tsoetseng pele tsa digital le theknoloji ea lisele tsa letsatsi.Phuputso e bontšitse hore mokhoa oa ho kopanya limolek'hule tse ngata (ho fihlela ho tse robeli ka nako) li ka hlahisa thepa e sebetsang hantle joaloka lisebelisoa tse ntle ka ho fetisisa tsa ho etsa likhalase tse tsejoang hona joale.
Khalase, e tsejoang hape e le "amorphous solid", ke thepa e se nang sebopeho se laetsoeng ka nako e telele-ha e etse likristale.Ka lehlakoreng le leng, lisebelisoa tsa kristale ke lisebelisoa tse nang le mekhoa e hlophisitsoeng haholo le e pheta-phetoang.
Lintho tseo re atisang ho li bitsa "khalase" bophelong ba letsatsi le leng le le leng li itšetlehile haholo ka silika, empa khalase e ka etsoa ka lisebelisoa tse ngata tse fapaneng.Ka hona, bafuputsi ba lula ba thahasella ho fumana litsela tse ncha tsa ho khothaletsa lisebelisoa tse fapaneng ho theha boemo bona ba amorphous, bo ka lebisang ho nts'etsopele ea likhalase tse ncha tse nang le thepa e ntlafetseng le lisebelisoa tse ncha.Phuputso e ncha e sa tsoa hatisoa koranteng ea saense ea "Science Advances" e emela mohato oa bohlokoa bakeng sa lipatlisiso.
Joale, ka ho kopanya limolek'hule tse ngata tse fapaneng, ka tšohanyetso re ile ra bula monyetla oa ho etsa lisebelisoa tse ncha le tse betere tsa khalase.Ba ithutang ka limolek’hule tsa lintho tse phelang baa tseba hore ho sebelisa motsoako oa limolek’hule tse peli kapa tse tharo tse fapaneng ho ka thusa ho etsa khalase, empa ke ba fokolang ba ka lebellang hore ho eketsa limolek’hule tse ngata ho tla finyella liphello tse babatsehang joalo,” sehlopha sa bafuputsi se ile sa etella pele lipatlisiso.Moprofesa Christian Müller ho tsoa Lefapheng la Khemistri le Boenjiniere ba Lik'hemik'hale oa Univesithi ea Ulms o boletse.
Liphetho tse ntle ka ho fetisisa bakeng sa lisebelisoa life kapa life tsa ho etsa likhalase
Ha mokelikeli o pholile ntle le kristale, khalase e thehoa, mokhoa o bitsoang vitrification.Tšebeliso ea motsoako oa limolek'hule tse peli kapa tse tharo ho khothalletsa sebopeho sa khalase ke khopolo e hōlileng.Leha ho le joalo, phello ea ho kopanya palo e kholo ea limolek'hule matla a ho etsa khalase e fumane tlhokomelo e fokolang.
Bafuputsi ba lekile motsoako oa limolek'hule tse ka bang robeli tse fapaneng tsa perylene, tseo feela li nang le brittleness e phahameng - tšobotsi ena e amana le boiketlo boo thepa e etsang khalase ka eona.Empa ho kopanya limolek'hule tse ngata hammoho ho lebisa phokotsong e kholo ea brittleness le ho theha khalase e matla haholo ea pele e nang le brittleness e tlase haholo.
“Ho robeha ha khalase eo re e entseng liphuputsong tsa rōna ho tlaase haholo, e leng se bontšang bokhoni bo botle ka ho fetisisa ba ho etsa likhalase.Ha rea lekanngoa feela le lintho tse phelang empa le lipolymer le thepa ea tlhaho (joalo ka khalase ea tšepe e ngata).Liphetho li betere ho feta likhalase tse tloaelehileng.Bokhoni ba ho bopa likhalase tsa khalase ea lifensetere ke e 'ngoe ea liqapi tse ntle ka ho fetisisa tseo re li tsebang," ho boletse Sandra Hultmark, seithuti sa bongaka Lefapheng la K'hemistri le Boenjiniere ba Lik'hemik'hale ebile e le sengoli se ka sehloohong sa thuto.
Eketsa bophelo ba sehlahisoa 'me u boloke lisebelisoa
Lisebelisoa tsa bohlokoa bakeng sa likhalase tsa tlhaho tse tsitsitseng haholoanyane ke mahlale a bonts'itsoeng joalo ka li-skrini tsa OLED le mahlale a ka nchafalitsoeng a matla joalo ka lisele tsa solar.
Li-OLED li entsoe ka likarolo tsa khalase tsa limolek'hule tsa tlhaho tse ntšang khanya.Haeba li tsitsitse haholoanyane, li ka eketsa ho tšoarella ha OLED mme qetellong ho tšoarella ha pontšo, "ho hlalositse Sandra Hultmark.
Kopo e 'ngoe e ka ruang molemo ka khalase e tsitsitseng haholoanyane ke lithethefatsi.Lithethefatsi tsa Amorphous li qhibiliha ka potlako, tse thusang ho monya motsoako o sebetsang ka potlako ha o kenngoa.Ka hona, lithethefatsi tse ngata li sebelisa mefuta ea lithethefatsi tse etsang khalase.Bakeng sa lithethefatsi, ke habohlokoa hore vitreous material e se ke ea khanya ha nako e ntse e ea.Ha moriana o entsoeng ka khalase o tsitsitse haholoanyane, nako e telele ea bophelo ba moriana.
"Ka khalase e tsitsitseng haholoanyane kapa lisebelisoa tse ncha tsa ho etsa likhalase, re ka eketsa bophelo ba tšebeletso ea lihlahisoa tse ngata, kahoo re boloka mehloli le moruo," ho boletse Christian Müller.
"The vitrification ea Xinyuanperylene motsoako ka ultra-low brittleness" e hatisitsoe koranteng ea saense "Science Advances".
Nako ea poso: Dec-06-2021