Ultrathin inverted perovskite hnub ci hlwb ua tiav 20.2 feem pua ​​​​ntawm kev ua haujlwm

Cov kws tshawb fawb Suav tau tsim cov hnub ci ultralight raws li perovskite nyias zaj duab xis raws li 3-micrometer-thick polymer. Lub cell lub zog hloov dua siab tshiab efficiency yog hais tias yuav muab piv rau cov pa thickness perovskite hlwb.

Cov kws tshawb fawb ntawm Peking University hauv Suav teb tau tsim ib qho ultrathin perovskite hnub ci cell raws li Parylene C. Parylene C yog chlorinated poly (paraxylylene) polymer nrog kub tsis kam, tsis tshua muaj ya raws permeability thiab zoo heev hluav taws xob thiab lub cev muaj zog.

Lawv siv cov khoom lag luam muaj nyob hauv 3-micron-thick parylene C thiab embedded rau hauv lub hnub ci cell los ntawm flip transfer (FOT) cov txheej txheem. Lawv thov hais tias qhov no ua kom lub smoothness ntawm lub polymer nto. Lawv kuj tso parylene C rau ntawm cov iav ua ntej ntxuav siv tshuaj vapor deposition (CVD).

Tsis tas li ntawd, cov kws tshawb fawb tau siv 210-nanometer-thick zirconium (Zr), titanium (Ti), thiab gallium-doped indium oxide (ITGZO) ua cov pob tshab conductive oxide (TCO) electrode rau lub hnub ci cell. Siv cov tshuab ntsuas hluav taws xob ntsuas hluav taws xob (SEM), lawv piv cov xovtooj ntawm kev ua haujlwm nrog cov khoom siv ntsuas raws li parylene F, lwm cov polymer, thiab iav-substrate cell tsis muaj cov polymer.

Cov kws tshawb fawb tau hais tias: "Cov zaj duab xis perovskite overlaid ntawm Parylene F muaj kev tiv thaiv tsis zoo, ntau lub pinholes ntawm lub ntsej muag zaj duab xis, thiab cov voids interfacial ntawm lub embedded hauv qab interface, uas yuav ua rau tsub nqi tsub zuj zuj thiab detrimental ntaus ntawv ua tau zoo. C ua tiav tib zaj duab xis tsim uniformity raws li cov iav-raws li cov yeeb yaj kiab, raws li pov thawj los ntawm qhov ploj ntawm qhov chaw pinholes thiab interfacial voids. "

Parylene C-raws li photovoltaic cell ua tiav lub zog hloov dua siab tshiab ntawm 20.2 feem pua, uas cov kws tshawb fawb hais tias yog piv rau cov tuab tuab ntawm perovskite hlwb.

Lawv xaus lus: "Vim yog lub zog hloov pauv hloov pauv tau zoo (PCE) thiab lub teeb yuag ntawm lub cuab yeej siv Parylene C substrate ntawm 6.67 g / m², lub zog ntawm ib chav tsev qhov hnyav nce mus txog 30.3 W / g, uas qhia tau hais tias kev siv Parylene. C Lin C nyias zaj duab xis muaj kev cia siab zoo rau kev ua haujlwm siab, ultra-thin, thiab ultra-light solar cells.

Cov kws tshawb fawb nthuav tawm lawv qhov kev tshawb pom hauv tsab xov xwm "Ultralight thiab Flexible Perovskite Solar Cells" tsis ntev los no tau tshaj tawm hauv Science Tuam Tshoj: Cov Khoom.