Houpūoko whakaahua tairongo teitei
Nō nā tata nei, i whakaarohia e tētahi rōpū rangahau i te Chinese Academy of Sciences (CAS) i runga i ngā Rauemi Waikura Gallium-whai-kōhatu polycrystalline (PGR-GaOX) mō te wā tuatahi tētahi rautaki hoahoa hou mō te tairongo teitei me te tere urupare teitei.pūoko whakaahuamā roto i ngā pānga pyroelectric me te photoconductivity hononga hononga, ā, i whakaputaina te rangahau e tika ana ki roto i te Advanced Materials. Teitei-pūngaongā pūoko whakaahua-hiko(mō ngā roopu hihi-X hohonu (DUV) ki ngā roopu hihi-X) he mea nui i roto i ngā momo mara, tae atu ki te haumarutanga ā-motu, te rongoā, me te pūtaiao ahumahi.
Heoi, ko ngā rauemi semiconductor o nāianei pēnei i te Si me te α-Se he raruraru o te nui o te rerenga me te iti o te tauwehenga mimiti hihi-X, he uaua ki te whakatutuki i ngā hiahia o te kimi mahi-teitei. He rerekē, ko ngā rauemi semiconductor āputa whānui (WBG) gallium oxide e whakaatu ana i te kaha nui mō te kimi hiko-whakaata teitei-pūngao. Heoi, nā te mahanga taumata hohonu e kore e taea te karo i te taha rauemi me te kore o te hoahoa whai hua i runga i te hanganga taputapu, he uaua ki te whakatutuki i ngā taputapu kite photon teitei te aro me te tere urupare teitei i runga i ngā semiconductors āputa whānui-roopu. Hei whakatika i ēnei wero, kua hangaia e tētahi rōpū rangahau i Haina he diode photoconductive pyroelectric (PPD) i runga i te PGR-GaOX mō te wā tuatahi. Mā te hono i te pānga pyroelectric atanga me te pānga photoconductivity, ka tino pai ake te mahi kimi. I whakaatuhia e te PPD te aro nui ki te DUV me ngā hihi-X, me ngā reiti urupare tae atu ki te 104A/W me te 105μC×Gyair-1/cm2, ia, neke atu i te 100 ngā wā teitei ake i ngā taputapu kite o mua i hangaia mai i ngā rauemi rite. Hei tāpiritanga, ko te pānga pyroelectric atanga i puta mai i te ōritetanga porowhita o te rohe whakahekenga PGR-GaOX ka taea te whakanui ake i te tere urupare o te pūoko mā te 105 ngā wā ki te 0.1ms. Ki te whakatauritea ki ngā photodiode tikanga, ka nui ake ngā hua o te aratau PPDS whaiaro-whakakaha nā ngā mara pyroelectric i te wā e whakawhiti ana te mārama.
Hei tāpiritanga, ka taea e te PPD te mahi i roto i te aratau whakahāngai, ina whakawhirinaki te whakanui ki te ngaohiko whakahāngai, ā, ka taea te whakatutuki i te whakanui tino teitei mā te whakanui ake i te ngaohiko whakahāngai. He nui te kaha o te PPD ki te whakamahi i roto i ngā pūnaha whakarei whakaahua iti te whakapaunga pūngao me te tairongo teitei. Ehara i te mea ko tēnei mahi anake e whakaatu ana he pūmanawa whai hua a GaOX.pūoko whakaahua kaha teiteirauemi, engari e whakarato ana hoki i tētahi rautaki hou mō te whakatinana i ngā taputapu whakaahua pūngao teitei mahi teitei.
Wā tuku: Hepetema-10-2024