E ai ki te rīpoata i roto i te putanga hou o Science, he rōpū rangahau e whakahaerehia ana e te Whare Wānanga o Tōkyo i Iapani, kua angitū te hanga i tētahi nanotube semiconductor molybdenum disulfide (MoS₂) he wiri kotahi, he mōrahi i runga i te 1 nanometer anake, e tata ana ki te rau mano te whanui o te huruhuru o te tangata, mā te whakamahi i ngā nanotubes boron nitride (BN) hei tauira. E whakaarohia ana ko te pūnaha nanotube semiconductor iti rawa i te ao i tenei wā. Ko te angitūtanga kāore i te whakau i ngā pānga ariā i mahia i ngā tau tekau ki muri e pā ana ki ngā āhuatanga hiko o ngā rauemi ultra-wīwī, engari he rautaki hou hoki mō te whakawhanake i ngā taputapu hiko hanga tau kāinga ki muri.
I tatauhia e ngā nanotubes kār.bona he pānui rōhita mō tā rātou kaha nōhanga me te mana hiko. Heoi, ko ngā rerekētanga iti i tō rātou pūnaha āka me mau nānā i ngā araiuma hāngai, me te whakaputa i ngā wero mō ngā tono transistor. I te taha kē, ko te MoS₂ he rauemi e pā ana ki te mana hiko kāore e taea ai te whakapā, he rahi te awhinatanga mō ngā taputapu hiko semiconductor, ngā pūrongo teitei-kī, me ngā rangahau pānga tahapū. Heoi anō, ka tīhoro ngā mōrahi o ngā nanotube, kāore e taea te whakatairanga i ngā pūnaha tinana me te raruraru pokanga teitei. Na reira, ko te whakaputa i ngā MoS₂ nanotubes ultra-wīwī me ngā pūnaha tohu kua pānuitia e noho ana hei wero nui i te mātauranga rauemi.
Ki te whakawhiti i tēnei whakawehi, ka whakahaerehia e te rōpū rangahau ngā whakautu matū i roto i te mokowā pātea o ngā BN nanotubes, e whakatū ana i ngā MoS₂ nanotubes he wiri kotahi, he mōrahi i runga i te 1 nanometer anake me tētahi pūnaha āka kua pānuitia. I kī ngā kairangahau ko tēnei mokowā kua herea e taea ai te whakawhanake i ngā MoS₂ nanotubes ultra-wīwī e kore e taea te hanga i tetahi atu, i te mea hoki e pakaru ana i te whakaritenga āka me te whakaputa i ngā rauemi rawa e taea ai te pānuitia.
I kitea i te rangahau ko te pōtae takahanga e heke ana i te wā e iti ana te mōrahi o te nanotube, e whakau ana i tētahi pūhunga ariā i whakatakotoria 25 tau ki muri.
Ko ngā tikanga hanga nanotube paerewa e puta ana i ngā nanotubes wiri maha me ngā mōrahi nui iho i te 10 nanometers, ā, he uaua te whakahaere i ngā pūnaha āka. I te tau i raro, ahakoa he tino iti ngā rerekētanga i te pūnaha, ka pā he tino kino ki te whakahaere pūrae i ngā rauemi. Ko te whakatutuki i te whakahaere pūnaha āka i te taumata atomi he tino mea nui mō ngā tono taputapu i ngā rā kei te heke mai.
Ka haere tonu ngā hangarau semiconductor i tenei wa e pā ana ki ngā uaua e pā ana ki te pupuri i te tino pūnaha i te wā e iti ana ngā taputapu, me ngā hapa e tino pā ana ki ngā tau e iti ana. Ko ngā nanotubes kār.bona e pā ana ki te wero wēnā. Ko ngā MoS₂ nanotubes pea e tuku ana i ngā pānga i te whakahaere āhua me te whakamārama pūnaha āka, me te tuku i tētahi ara hou mō te hanga i ngā pānga semiconductor iti rawa.
Ko te angitūtanga ka noho tonu hei tawhiti mai i te tono practical. Ko ngā nanotubes i whakaputahia inaianei he torutoru rau nanometers te roa. E whakaaro ana te rōpū rangahau ki te whānui i tō rātou roa ki te rōrahi o 1 micrometer, e 1,000 nanometers, me te tirohia mēnā ka taea te whakamahi i te tikanga kotahi ki te hanga i ētahi atu rauemi nanotube kore-ahua, tae atu ki ngā rauemi parekura me ngā rauemi superconductor.