Rekoata whakaahua silicon pango: te pai o te matūriki o waho tae atu ki te 132%

Hiraka pangopūoko whakaahuarekoata: te whai huatanga o te matūriki o waho tae atu ki te 132%

E ai ki ngā pūrongo pāpāho, kua whakawhanakehia e ngā kairangahau o Te Whare Wānanga o Aalto tētahi taputapu optoelectronic me te whai huatanga matūriki o waho tae atu ki te 132%. I tutuki tēnei mahi whakamiharo mā te whakamahi i te silicon pango nanostructured, he mea pea hei putanga nui mō ngā pūtau rā me ētahi atu.nga kaitirotiro whakaahuaMena he 100 ōrau te whai huatanga matūriki o waho o tētahi taputapu photovoltaic whakapae, ko te tikanga ka puta he irahiko i ia photon e pā ana ki a ia, ka kohia hei hiko mā roto i tētahi ara iahiko.

Ā, ehara i te mea ka eke noa tēnei taputapu hou ki te 100 ōrau te pai o te mahi, engari neke atu i te 100 ōrau. Ko te tikanga o te 132% he toharite o te 1.32 irahiko mō ia photon. E whakamahi ana i te silicon pango hei rauemi hohe, ā, he hanganga nano kōne me te poupou tōna e taea ai te mimiti i te mārama ultraviolet.

E mārama ana kāore e taea te hanga i te 0.32 irahiko tāpiri mai i te hau angiangi, nā te mea, e ai ki te ahupūngao kāore e taea te hanga pūngao mai i te hau angiangi, nō hea ēnei irahiko tāpiri?

Ko te kaupapa matua o te mahi a ngā rauemi photovoltaic te pūtake o tēnei katoa. Ina pā te photon o te māramatanga ki tētahi matū hohe, ko te silicon te tikanga, ka panaia te irahiko i roto i tētahi o ngā ngota. Engari i ētahi wā, ka taea e te photon pūngao-nui te panaia ngā irahiko e rua me te kore e takahi i ngā ture ahupūngao.

Kāore e kore he tino āwhina te whakamahi i tēnei āhuatanga ki te whakapai ake i te hoahoa o ngā pūtau rā. I roto i te maha o ngā rauemi optoelectronic, ka ngaro te whai huatanga i roto i ngā huarahi maha, tae atu ki te whakaatahia o ngā photon mai i te taputapu, te whakakotahi rānei o ngā irahiko ki ngā "kōhao" i mahue i roto i ngā ngota i mua i te kohikohinga e te ara iahiko.

Engari e ai ki te tīma a Aalto kua tangohia e rātou te nuinga o aua arai. He nui ake ngā photon e mimitihia ana e te silicon pango i ērā atu rauemi, ā, ka whakaitihia e ngā hanganga nano whakarara me te pou te whakakotahitanga o ngā irahiko i runga i te mata o te rauemi.

I te nuinga o te wā, nā ēnei whanaketanga kua taea ai e te whai huatanga o te irahiko ā-waho o te taputapu te eke ki te 130%. Kua manatokohia motuhaketia ngā hua o te tīma e te Whare Wānanga o te Ahupūngao ā-Motu o Tiamana, te PTB (German Federal Institute of Physics).

E ai ki ngā kairangahau, ka taea e tēnei whai huatanga o te hopu oro te whakapai ake i te mahi a tētahi taputapu whakaahua, tae atu ki ngā pūtau rā me ētahi atu pūoko mārama, ā, kei te whakamahia kētia te taputapu hou hei taputapu arumoni.