Lub hnub ci cell siv nyob rau hauv lub qhov rais fais fab muaj ib tug lifespan ntawm 30 xyoo

Lub hnub ci zog yog qhov pheej yig tshaj plaws ntawm lub zog tsim los ntawm noob neej txij li Kev Lag Luam Kev Lag Luam. Los ntawm kev siv cov cuab yeej no ntawm lub qhov rais, koj lub tsev yuav dhau los ua lub zog cog.

Txawm hais tias silicon tseem yog huab tais ntawm lub hnub ci vaj huam sib luag, nws tsis yog pob tshab. Rau lub qhov rais-phooj ywg hnub ci vaj huam sib luag, cov kws tshawb fawb tau tshawb nrhiav cov ntaub ntawv organic lossis carbon-based. Qhov kev sib tw ntsib pab pawg Forrest yog yuav ua li cas los tiv thaiv cov khoom siv hluav taws xob hloov hluav taws xob zoo heev los ntawm kev degrading sai heev thaum siv.

Qhov zoo thiab qhov tsis zoo ntawm cov ntaub ntawv no nyob hauv cov molecules uas thauj cov duab tsim hluav taws xob mus rau cov electrodes, cov ntsiab lus nkag ntawm circuits uas siv los yog khaws cov hnub ci zog. Cov ntaub ntawv no feem ntau hu ua" non-fullerene receptors" kom paub qhov txawv ntawm lawv los ntawm qhov muaj zog dua tab sis tsis muaj txiaj ntsig"fullerene receptors" ua los ntawm nanoscale carbon mesh. Hnub ci hlwb ua los ntawm sulfur-doped non-fullerene txais tuaj yeem ua tiav 18% kev ua haujlwm zoo ib yam li silicon, tab sis lawv lub neej kev pabcuam tsis ntev.

& quot; Non-fullerene receptors muaj kev ua haujlwm siab heev, tab sis muaj cov ntawv cog lus tsis muaj zog uas tau yooj yim dissociated nyob rau hauv high-zog photons, tshwj xeeb tshaj yog ultraviolet [ultraviolet] photons uas muaj ntau nyob rau hauv tshav ntuj," Assistant Research Scientist hauv Hluav Taws Xob Engineering thiab Computer Science ntawm University of Michigan Li Yongxi tau hais. Tus sau phau ntawv Nature Communications.

Los ntawm kev kawm txog qhov tsis zoo ntawm cov hnub ci uas tsis muaj kev tiv thaiv, pab pawg pom tau tias lawv tsuas yog xav tau kev txhawb nqa hauv ob peb qhov chaw. Ua ntej, lawv yuav tsum tau thaiv cov kab hluav taws xob ultraviolet. Txog rau qhov kawg no, lawv ntxiv ib txheej ntawm zinc oxide, cov khoom siv tshuaj pleev thaiv hnub, rau sab ntawm lub iav uas tig mus rau lub hnub.

Lub thinner zinc oxide txheej nyob ze ntawm lub teeb-absorbing cheeb tsam pab ua lub hnub ci tsim hluav taws xob rau cov electrode. Hmoov tsis zoo, nws kuj tau rhuav tshem lub teeb pom kev tsis yooj yim, yog li pab pawg tau ntxiv cov txheej txheem carbon-raws li cov khoom hu ua IC-SAM ua qhov tsis zoo.

Tsis tas li ntawd, cov electrodes uas kos qhov zoo them" qhov" (qhov tseem ceeb ntawm qhov chaw tawm los ntawm electrons) rau hauv Circuit Court kuj tuaj yeem cuam tshuam nrog lub teeb absorbers. Txhawm rau tiv thaiv sab ntawd, lawv ntxiv lwm txheej tsis, uas yog lub ntsej muag zoo li lub pob football.

Pab neeg no tau sim lawv cov kev tiv thaiv tshiab nyob rau hauv simulated hnub ci ntawm qhov sib txawv, los ntawm lub teeb ntawm 1 hnub mus rau 27 hnub, thiab kub li 150 degrees Fahrenheit. Los ntawm kev kawm yuav ua li cas kev ua tau zoo poob rau hauv cov xwm txheej no, pab pawg tau txiav txim siab tias lub hnub ci tseem tuaj yeem ua haujlwm ntawm 80% kev ua haujlwm tom qab 30 xyoo.

Forrest pom yav tom ntej ntawm cov cuab yeej no" los rau ntawm lub qhov rais ze koj." Nws pab neeg tau nce pob tshab ntawm lub module rau 40%. Lawv ntseeg tias lawv tuaj yeem ncav cuag 60% pob tshab.

Lawv kuj tseem ua haujlwm kom nce kev ua tau zoo los ntawm 10% ua tiav nyob rau hauv lub translucent module ntawm daim ntawv tshaj tawm kom ze rau 15% uas ntseeg tau tias muaj peev xwm ua tau siab transparency. Txij li cov khoom tuaj yeem ua kua, cov nqi tsim khoom yuav tsum tau qis dua.