Wahi a ka hui physicists pūnaewele i hōʻike hou aku nei ua hoʻomohala ka poʻe noiʻi Finnish i kahi photodetector silicon ʻeleʻele me kahi kūpono quantum waho o 130%, ʻo ia ka manawa mua i ʻoi aku ka maikaʻi o nā mea photovoltaic ma mua o ka palena theoretical o 100%, i manaʻo ʻia e nui loa. hoʻomaikaʻi i ka pono o nā mea ʻike photoelectric, a hoʻohana nui ʻia kēia mau mea i nā kaʻa, nā kelepona paʻalima, nā wati akamai a me nā mea lapaʻau.
ʻO ka mea nānā kiʻi he mea ʻike hiki ke ana i ka māmā a i ʻole ka ikehu electromagnetic ʻē aʻe, e hoʻohuli i nā kiʻi kiʻi i kahi au uila, a ʻo nā kiʻi i hoʻopaʻa ʻia e hana i nā lua electron-hole.Aia ka photodetector i ka photodiode a me ka phototransistor, a pēlā aku. Hoʻohana ʻia ka quantum efficiency e wehewehe i ka pākēneka o nā photon i loaʻa e kekahi mea e like me ka photodetector i loko o kahi lua electron-hole, ʻo ia hoʻi, ua like ka quantum efficiency me ka helu o nā electrons photogenerated i puʻunaue ʻia e. ka helu o nā kiʻi i hana ʻia.
Ke hoʻopuka ka photon i kahi electron i kahi kaapuni o waho, ʻo 100% ka hana kuantum o waho o ka hāmeʻa (i manaʻo mua ʻia ʻo ia ka palena theoretical).Ma ka noiʻi hou loa, ua loaʻa i ka photodetector ʻeleʻele ka maikaʻi a hiki i ka 130 pakeneka, ʻo ia hoʻi, hoʻokahi hanana photon e hoʻopuka ma kahi o 1.3 electrons.
Wahi a nā mea noiʻi o ke Kulanui ʻo Aalto, ʻo ka mea huna ma hope o kēia holomua nui ʻo ia ke kaʻina hana hoʻonui i ka lawe ʻana i loko o ka nanostructure kūʻokoʻa o ka photodetector silika ʻeleʻele, i hoʻoulu ʻia e nā photons kiʻekiʻe.Ma mua, ʻaʻole i hiki i nā ʻepekema ke ʻike i ke ʻano i nā mea maoli no ka mea ʻo ka hele ʻana o ka uila a me ka nalo optical i hōʻemi i ka helu o nā electrons i hōʻiliʻili ʻia."ʻAʻohe hui hou ʻana o kā mākou mau mea nanostructured a ʻaʻohe noʻonoʻo noʻonoʻo, no laila hiki iā mākou ke hōʻiliʻili i nā mea lawe uku hoʻonui nui ʻia," wahi a ke alakaʻi noiʻi ʻo Professor Hera Severn.
Ua hōʻoia ʻia kēia ʻoihana e ka Institute of Physical Technology o ka German National Metrology Society (PTB), ka lawelawe ana i ka pololei a hilinaʻi loa ma ʻEulopa.
Hoʻomaopopo ka poʻe noiʻi e hiki i nā mea ʻepekema ke hoʻomaikaʻi nui i ka hana o nā mea ʻike photoelectric.
"Ua hoʻoulu nui kā mākou mea ʻike, ʻoi aku ka nui o nā wahi o ka biotechnology a me ka nānā ʻana i nā kaʻina hana ʻoihana," wahi a Kauka Mikko Juntuna, Luna Nui o ElfysInc, kahi hui nona ke Kulanui ʻo Aalto.Ua hōʻike ʻia ua hoʻomaka lākou e hana i ia mau mea ʻike no ka hoʻohana ʻana i ka ʻoihana.
Ka manawa hoʻouna: Jul-11-2023