Hiki ke hoʻohana ʻia nā mea semiconductor hou a palupalu e hana i nā mea micro a nano optoelectronic

Hiki ke hoʻohana ʻia nā mea semiconductor hou a palupalu e hana i ka micro anano optoelectronic mea hana

roperties, mānoanoa o nā nanometer wale nō, nā waiwai optical maikaʻi… Ua aʻo ka mea kākau moʻolelo mai Nanjing University of Technology ua hoʻomākaukau ka pūʻulu noiʻi o ke kaukaʻi o ke Keʻena physics o ke kula i kahi aniani kiʻekiʻe kiʻekiʻe ʻelua-dimensional lead iodide kristal. , a ma o ia mea e hoʻokō ai i ka hoʻoponopono ʻana i nā waiwai optical o nā mea hoʻololi metala sulfide ʻelua-dimensional, e hāʻawi ana i kahi manaʻo hou no ka hana ʻana i nā ʻāpana lā a menā mea nānā kiʻi. Ua paʻi ʻia nā hopena ma ka pukana hou loa o ka puke pai honua Advanced Materials.

"ʻO ka ultra-thin lead iodide nanosheets a mākou i hoʻomākaukau ai no ka manawa mua, ʻo ka huaʻōlelo ʻenehana ʻo 'atomic thick wide band gap two-dimensional PbI2 crystals', he mea semiconductor ultra-thin me ka mānoanoa o nā nanometer wale nō. ” Ua ʻōlelo ʻo Sun Yan, ka mea kākau mua o ka pepa a me ka moho kauka ma ke Kulanui o ʻenehana ʻo Nanjing, ua hoʻohana lākou i ke ʻano hoʻonā e synthesize, he haʻahaʻa haʻahaʻa loa nā pono o nā lako a loaʻa nā pono o ka maʻalahi, wikiwiki a maikaʻi, a hiki ke hoʻokō i ka nā pono o ka hoʻomākaukauʻana i nā mea nui a me nā mea kiʻekiʻe. ʻO nā nanosheets ke alakaʻi iodide i hoʻopaʻa ʻia he triangular a hexagonal maʻamau, ka nui awelika o 6 microns, ʻili laulima a me nā waiwai optical maikaʻi.

Ua hoʻohui nā mea noiʻi i kēia nanosheet ultra-thin o ke alakaʻi iodide me ʻelua-dimensional transition metal sulfides, hana ʻia, hoʻopaʻa pū ʻia, a loaʻa i nā ʻano heterojunctions like ʻole, no ka mea, ua hoʻonohonoho ʻia nā pae ikehu ma nā ʻano like ʻole, no laila hiki i ke alakaʻi iodide ke loaʻa nā hopena like ʻole. e pili ana i ka hana ʻike o nā ʻokoʻa ʻelua-dimensional transition metal sulfides. Hiki i kēia hui hui ke hoʻomaikaʻi maikaʻi i ka pono o ka luminous, e kūpono ana i ka hana ʻana o nā mea hana e like me nā kukui-emitting diodes a me nā lasers, i hoʻopili ʻia i ka hōʻike a me nā kukui, a hiki ke hoʻohana ʻia i ke kahua o nā photodetectors anā mea hana photovoltaic.

Hoʻomaopopo kēia hoʻokō i ka hoʻoponopono ʻana i nā waiwai optical o nā mea ʻelua-dimensional transition metal sulfide e ka ultra-thin lead iodide. Ke hoʻohālikelike ʻia me nā mea hana optoelectronic kuʻuna e pili ana i nā mea i hoʻokumu ʻia i ka silicon, loaʻa kēia hoʻokō i nā hiʻohiʻona o ka maʻalahi, micro a nano. No laila, hiki ke hoʻohana ʻia i ka hoʻomākaukau ʻana o ka maʻalahi a me ka hoʻohuinā mea hana optoelectronic. Loaʻa iā ia kahi manaʻo noiʻi ākea ma ke kahua o nā mea micro a me nano optoelectronic i hoʻohui ʻia, a hāʻawi i kahi manaʻo hou no ka hana ʻana i nā cell solar, photodetectors a pēlā aku.