Haɓaka ingancin ƙwayoyin rana don samun 'yancin kai daga tushen makamashin mai shine babban abin da aka fi mayar da hankali a cikin binciken ƙwayar rana. Tawagar da masanin kimiyyar lissafi Dr. Felix Lang na jami'ar Potsdam ke jagoranta, tare da Farfesa Lei Meng da Farfesa Yongfang Li daga kwalejin kimiyyar kasar Sin dake nan birnin Beijing, sun yi nasarar hada perovskite da na'urorin daukar kwayoyin halitta, don samar da wata kwayar tandem mai amfani da hasken rana, wadda ta kai matakin da ya dace, kamar yadda aka ruwaito a mujallar kimiyya ta Nature.
Wannan dabarar ta ƙunshi haɗakar abubuwa biyu waɗanda ke ɗaukar gajeriyar raƙuman raƙuman ruwa da tsayi-musamman, yankuna shuɗi/kore da ja/infrared na bakan — don haka inganta amfani da hasken rana. A al'adance, mafi inganci abubuwan jan hankali na jan / infrared a cikin sel na hasken rana sun fito ne daga kayan al'ada kamar silicon ko CIGS (indium gallium selenide jan karfe). Koyaya, waɗannan kayan yawanci suna buƙatar yanayin aiki mai girma, yana haifar da babban sawun carbon.
A cikin littafinsu na baya-bayan nan a cikin Nature, Lang da abokan aikinsa sun haɗu da fasahohin ƙwayoyin hasken rana guda biyu masu ban sha'awa: perovskite da ƙwayoyin hasken rana, waɗanda za'a iya sarrafa su a ƙananan yanayin zafi kuma suna da ƙarancin tasirin carbon. Samun ingantaccen inganci na 25.7% tare da wannan sabon haɗin gwiwa aiki ne mai wahala, kamar yadda Felix Lang ya lura, wanda ya bayyana, "An sami nasarar wannan nasarar ta hanyar haɗa manyan ci gaba guda biyu kawai." Nasara ta farko ita ce haɗakar sabon jan/infrared mai shayar da kwayar halitta ta Meng da Li, wanda ke ƙara ƙarfin ɗaukarsa zuwa cikin kewayon infrared. Lang ya kara da cewa, "Duk da haka, tandem hasken rana Kwayoyin sun fuskanci gazawa saboda perovskite Layer, wanda ke fama da hasara mai yawa lokacin da aka tsara shi don shawo kan sassan blue da kore na hasken rana.
Lokacin aikawa: Dec-12-2024