ʻEleʻele ʻeleʻele kiʻi kiʻi kiʻi kiʻi kiʻi: ʻoi aku ka maikaʻi o waho a hiki i 132%

Silika ʻeleʻelemea nānā kiʻimooolelo: ka pono quantum waho a hiki i ka 132%

Wahi a nā hōʻike media, ua hoʻomohala nā mea noiʻi ma ke Kulanui ʻo Aalto i kahi mea optoelectronic me kahi kūpono quantum waho a hiki i ka 132%.Ua hoʻokō ʻia kēia mea hiki ʻole ma ka hoʻohana ʻana i ke silika ʻeleʻele nanostructured, hiki ke lilo i mea hoʻokūkū nui no nā cell solar a me nā mea ʻē aʻe.nā mea nānā kiʻi.Inā he 100 pākēneka ka mana kuantum o waho o kahi mea photovoltaic hypothetical, ʻo ia hoʻi, ʻo kēlā me kēia photon e paʻi iā ia e hana i kahi electron, i hōʻiliʻili ʻia e like me ka uila ma o kahi kaapuni.

ʻAʻole hiki i kēia mea hou ke hoʻokō i ka 100 pakeneka pono, akā ʻoi aku ma mua o 100 pakeneka.132% 'o ia ho'i ka awelika o 1.32 electrons no ka photon.Hoʻohana ʻo ia i ka silika ʻeleʻele e like me ka mea hana a he cone a me ka columnar nanostructure e hiki ke hoʻopaʻa i ke kukui ultraviolet.

ʻIke loa ʻaʻole hiki iā ʻoe ke hana i 0.32 mau electrons ʻē aʻe mai loko mai o ka ea lahilahi, ma hope o nā mea a pau, ʻōlelo ka physics ʻaʻole hiki ke hana ʻia ka ikehu mai loko mai o ka ea lahilahi, no laila mai hea mai kēia mau electrons keu?

Hele mai nā mea a pau i ke kumu hana maʻamau o nā mea photovoltaic.Ke paʻi ke kiʻi kiʻi o ke kukui i kahi mea hana, ka mea maʻamau ke silika, kikeke ia i kahi electron mai kekahi o nā mana.Akā i kekahi mau hihia, hiki i kahi photon ikaika nui ke kīkēkē i ʻelua mau electrons me ka ʻole o ka uhai ʻana i nā kānāwai o ka physics.

ʻAʻohe mea kānalua ʻo ka hoʻohana ʻana i kēia ʻano mea hiki ke kōkua nui i ka hoʻomaikaʻi ʻana i ka hoʻolālā ʻana o nā cell solar.I ka nui o nā mea optoelectronic, nalowale ka pono ma nā ʻano he nui, e like me ka wā e ʻike ʻia ai nā photon mai ka hāmeʻa a i ʻole e hui hou nā electrons me nā "puka" i waiho ʻia i loko o nā ʻātoma ma mua o ka hōʻiliʻili ʻia ʻana e ke kaapuni.

Akā ʻōlelo ka hui o Aalto ua wehe nui lākou i kēlā mau pilikia.ʻOi aku ka nui o nā kiʻi kiʻi ʻeleʻele ma mua o nā mea ʻē aʻe, a ʻo nā nanostructure tapered a me columnar e hōʻemi i ka hoʻohui hou ʻana o electron ma ka ʻili o ka mea.

Ma ka holoʻokoʻa, ua hiki i kēia mau holomua ke hiki i ka quantum efficiency o waho o ka hāmeʻa a hiki i 130%.Ua hōʻoia kūʻokoʻa ʻia nā hopena o ka hui e ka National Metrology Institute o Kelemania, ka PTB (German Federal Institute of Physics).

Wahi a ka poʻe noiʻi, hiki i kēia hoʻopaʻa moʻoʻōlelo ke hoʻomaikaʻi i ka hana o kēlā me kēia photodetector, me nā pūnaewele lā a me nā mea ʻike kukui ʻē aʻe, a ke hoʻohana ʻia nei ka mea ʻike hou ma ke kālepa.