Gulu la ofufuza ku North Carolina State University, akugwira ntchito ndi khungu la photovoltaic (OPV) kampani ya NextGen Nano, yawonetsa momwe kuwonjezera ma cell owonekera owoneka bwino (OSCs) m'mabotolo amalola alimi kupanga magetsi komanso kulima letesi, ndikuchepetsa mphamvu zowonjezera kutentha. Zotsatira zake zidzakhazikitsa maziko opangira magetsi muulimi wowonjezera wowonjezera kutentha.
Kafukufuku, wofalitsidwa mu Malipoti Am'manja Sayansi Yathupi, idapeza kuti letesi yofiira imatha kulimidwa m'mabotolo okhala ndi ma OSC omwe amasefa kutalika kwa kuwala komwe kumagwiritsidwa ntchito popanga mphamvu ya dzuwa. Izi zikuwonetsa kuthekera kogwiritsa ntchito magalasi owonekera a dzuwa m'mabotolo kuti akwaniritse zofuna zawo zamagetsi, osachepetsa zokolola.
Pakadutsa masiku 30, magulu anayi a letesi adakula m'mitundu yosiyanasiyana pogwiritsa ntchito zosefera za OSC. Izi zikuphatikiza gulu loyang'anira lomwe limayatsidwa kuwala koyera koyera. Palibe kusiyana kwakukulu pakulemera kwatsopano kapena klorophyll pakati pamagulu olamulira ndi magulu oyesera omwe adapezeka, ndikuwonetsa kuti kuchotsa magawo owala owala omwe amafunikira kuti apange magetsi sikukhudza kukula kwa mbewuyo. Ma wavelengths omwe adakolola atha kugwiritsidwa ntchito kupatsa mphamvu zowunikira zamagetsi, kasamalidwe ka matenthedwe ndi njira zothirira zofunikira pakulima wowonjezera kutentha.
"Malo osungira zobiriwira amagwiritsidwa ntchito kulima mbewu chifukwa amakulitsa kwambiri zokolola m'malo omwe siabwinobwino, pomwe amachepetsa kugwiritsa ntchito madzi ndi mankhwala ophera tizilombo poyerekeza ndi ulimi wamba," adatero Doctor Carr Ho, wasayansi wofufuza ku NextGen Nano. "Koma kutentha kwa galasi sikutenthetsa bwino mafuta, chifukwa chake kuyenera kutentha ndi mpweya wabwino ziyenera kukhazikitsidwa kuti zithandizire kukhalabe bwino. Pamodzi ndi kuyatsa kowonjezera, izi zimabweretsa zowononga zazikulu, zosasinthika zamagetsi.
"Ndi kafukufukuyu, asayansi ku NCSU apeza njira yolimitsira wowonjezera kutentha popanda mphamvu zazikulu zomwe zimakhudzana ndi chikhalidwe chawo," adatero Ho. “Pogwiritsa ntchito ma OSC okhala ndi zokutira zowoneka bwino ndi kapangidwe kake, olima amatha kuyendetsa magetsi, magetsi ndi katundu wotenthetsera wowonjezera kutentha kuti azigwiritsa ntchito kwambiri magetsi.
Kugwiritsa ntchito zokutira kwa DBR sikuti kumangopereka mwayi wowonjezera kupanga magetsi koma itha kugwiritsidwanso ntchito kuchepetsa kutentha kwanyengo. Tikuwonetsa kuti pa wowonjezera kutentha ku Sacramento, California, kuchuluka kwa maola omwe kutentha kotenthedwa kumatha kuchepetsedwa kuchokera ku 280 mpaka 82 h mukamagwiritsa ntchito ma OSC omwe ali ndi DBR yolinganiza kuwunikira NIR. Ngakhale izi sizikhala ndi vuto lalikulu pakufuna mphamvu zamagetsi, zikuyembekezeka kukonza kukolola kwa mbewu.
Pomaliza, kugwiritsa ntchito ma elekitirodi a OSC omwe amathanso kugwira ntchito ngati zokutira zotsika-ε adawonetsedwa kuti amachepetsa kwambiri kutentha kwanyumba. Kuphatikiza kukhudzidwa kocheperako komwe kumawonekera pakukolola kwazomera, kuphatikiza pakupanga magetsi ndikuwongolera kayendedwe ka matenthedwe pogwiritsa ntchito ST-OSC, zikuwonetsa kuti kuphatikiza ma OSC ndi malo obiriwira ndi njira yodalirika yokwaniritsira ulimi wokhazikika wowonjezera kutentha.
“Kafukufuku wowonjezereka akufunika kuti ma OSC athe kukulitsa zokolola m'mabotolo. Koma kafukufuku wothandizidwa ndi NextGen Nano akuwonetsa kuti kuphatikiza ma OSC kulima wowonjezera kutentha ndi njira yodalirika yopezera ulimi wokhazikika komanso wowonjezera kutentha. "
Kuphatikiza pa kuthandizira kwa pepalali, NextGen Nano yapanga chida chovomerezeka cha OPV chomwe chingagwiritsidwe ntchito m'badwo wotsatira wa mphamvu ya dzuwa. Tekinoloje iyi imapangidwa ndi ma biopolymers osinthika, olimba, okonda dziko lapansi ndi cholinga chobwezeretsa maselo achizolowezi oyenda dzuwa opangidwa kuchokera ku poizoni-zitsulo zolemera, monga lead perovskites.
Zowunikira pakuwonjezera kutentha zimadalira malo ndi mbewu. Ngakhale kuti letesi imawonetsedwa kuti ikukula bwino pansi pa ST-OSCs, imadziwika kuti ndi mbewu yolekerera mthunzi.7 Kwa mbewu zomwe zimafuna kuyatsa kwambiri, zida zina za ST-OSC ndi zigawo zina zingafunike. Malo owonjezera kutentha adzawunikiranso cheza cha tsiku ndi tsiku cholowa mu wowonjezera kutentha komanso zosowa ndi kuzirala kwa danga. M'chigawo chino, timalingalira za kapangidwe ka ST-OSC kamene kamakhudza kupanga mbewu, kupanga magetsi, komanso kutentha kwa malowo.
Pepala lathunthu lofufuzira limapezeka pama Cell Reports webusaiti. Kuti mumve zambiri pazotsatira zina za NextGen Nano, pitani patsamba la kampaniyo http://nextgen-nano.co.uk/.