Za'a iya amfani da sabbin semiconductor na bakin ciki da taushi don yin ƙananan danano optoelectronic na'urorin
roperties, kaurin nanometer kaɗan, kyawawan kaddarorin gani… Mai ba da rahoto ya koya daga Jami'ar Fasaha ta Nanjing cewa ƙungiyar masu bincike na farfesa na Sashen kimiyyar lissafi na makarantar sun shirya wani ƙwaƙƙwaran ƙwaƙƙwaran ƙwaƙƙwaran gubar iodide crystal mai girma biyu. , kuma ta hanyar shi don cimma ka'idodin kaddarorin gani na kayan aikin ƙarfe na sulfide mai girma biyu, wanda ke ba da sabon ra'ayi don kera ƙwayoyin hasken rana damasu daukar hoto.An buga sakamakon a cikin sabuwar mujallar kasa da kasa Advanced Materials.
“Mafi girman bakin ciki gubar iodide nanosheets da muka shirya a karon farko, fasahar fasaha shine 'tsarin kauri mai kauri mai kauri mai girma PbI2 lu'ulu'u biyu', wanda wani abu ne mai kauri mai kauri mai kauri na 'yan nanometers kawai. ”Sun Yan, marubucin farko na takarda kuma dan takarar digiri na uku a Jami'ar Fasaha ta Nanjing, ya ce sun yi amfani da hanyar warware matsalar don haɗawa, wanda ke da ƙarancin buƙatun kayan aiki kuma yana da fa'ida mai sauƙi, sauri da inganci, kuma yana iya biyan bukatun. buƙatun manyan-yanki da shirye-shiryen kayan haɓaka mai girma.Nanosheets gubar iodide da aka haɗa suna da siffar triangular na yau da kullun ko siffar hexagonal, matsakaicin girman 6 microns, ƙasa mai santsi da kyawawan kaddarorin gani.
Masu binciken sun haɗu da wannan ultra-bakin nanosheet na gubar iodide tare da sulfides na ƙarfe na canji na nau'i biyu, wanda aka tsara ta hanyar wucin gadi, an tattara su tare, kuma sun sami nau'o'in heterojunctions daban-daban, saboda an tsara matakan makamashi ta hanyoyi daban-daban, don haka gubar iodide na iya samun tasiri daban-daban. a kan na gani yi na daban-daban biyu-girma mika mulki karfe sulfides.Wannan tsarin bandeji na iya inganta ingantaccen haske, wanda ke taimakawa samar da na'urori irin su diodes masu fitar da haske da lasers, waɗanda aka yi amfani da su a cikin nuni da haske, kuma ana iya amfani da su a fagen na'urar gano hotona'urorin photovoltaic.
Wannan nasara tana fahimtar ƙa'idodin kaddarorin gani na kayan mizani na ƙarfe sulfide mai girma biyu ta hanyar ultra-bakin ciki gubar iodide.Idan aka kwatanta da na'urorin optoelectronic na gargajiya bisa tushen kayan siliki, wannan nasarar tana da halaye na sassauci, micro da nano.Sabili da haka, ana iya amfani da shi don shirye-shiryen sassauƙa da haɗin kaioptoelectronic na'urorin.Yana da fa'idar aikace-aikace mai fa'ida a fagen haɗaɗɗun micro da nano optoelectronic na'urorin, kuma yana ba da sabon ra'ayi don kera ƙwayoyin hasken rana, masu gano hoto da sauransu.
Lokacin aikawa: Satumba-20-2023