Photodetector e ncha e phahameng ea kutloisiso

Photodetector e ncha e phahameng ea kutloisiso

Haufinyane tjena, sehlopha sa lipatlisiso ho Chinese Academy of Sciences (CAS) se ipapisitseng le polycrystalline gallium-rich Gallium oxide Materials (PGR-GaOX) se ile sa etsa tlhahiso ea lekhetlo la pele leano le lecha la moralo bakeng sa kutlo e phahameng le lebelo le phahameng la karabelo e phahameng ea photodetector ka sebopeho se kopantsoeng sa pyroelectric. le liphello tsa photoconductivity, 'me lipatlisiso tse nepahetseng li ile tsa hatisoa ho Advanced Materials. Li-detectors tsa photoelectric tse nang le matla a phahameng (bakeng sa mahlaseli a kotsi a tebileng (DUV) ho ea ho lihlopha tsa X-ray) li bohlokoa likarolong tse fapaneng, ho kenyeletsoa tšireletso ea naha, meriana, le saense ea indasteri.

Leha ho le joalo, lisebelisoa tsa morao-rao tsa semiconductor tse kang Si le α-Se li na le mathata a ho lutla ho hoholo ha hona joale le ho fokotseha ha X-ray, ho leng thata ho finyella litlhoko tsa ho lemoha ts'ebetso e phahameng. Ka lehlakoreng le leng, lisebelisoa tsa semiconductor gallium oxide tse semiconductor tse pharaletseng (WBG) li bonts'a monyetla o moholo oa ho lemoha matla a phahameng a photoelectric. Leha ho le joalo, ka lebaka la leraba le ke keng la qojoa la boemo bo tebileng ka lehlakoreng la thepa le khaello ea moralo o sebetsang mohahong oa sesebelisoa, ho thata ho lemoha kutloisiso e phahameng le lebelo le phahameng la ho arabela ka matla a matla a photon detectors a thehiloeng holim'a li-semiconductors tse ngata tsa lekhalo. Ho rarolla mathata ana, sehlopha sa lipatlisiso Chaena se entse pyroelectric photoconductive diode (PPD) e thehiloeng ho PGR-GaOX ka lekhetlo la pele. Ka ho kopanya sebopeho sa pyroelectric effect le photoconductivity effect, ts'ebetso ea ho lemoha e ntlafatsoa haholo. PPD e bontšitse kutlo e phahameng ho DUV le X-rays ka bobeli, ka litefiso tsa karabelo ho fihla ho 104A/W le 105μC×Gyair-1/cm2, ka ho latellana, ka makhetlo a fetang 100 ho feta li-detectors tse fetileng tse entsoeng ka thepa e tšoanang. Ho phaella moo, phello ea pyroelectric ea interface e bakoang ke polar symmetry ea sebaka sa ho fokotseha ha PGR-GaOX e ka eketsa lebelo la karabo ea detector ka linako tse 105 ho 0.1ms. Ha ho bapisoa le li-photodiodes tse tloaelehileng, mokhoa oa boipheliso oa PPDS o hlahisa phaello e phahameng ka lebaka la masimo a pyroelectric nakong ea ho fetoha ha leseli.

Ntle le moo, PPD e ka sebetsa ka mokhoa oa leeme, moo phaello e itšetlehileng haholo ka matla a leeme, 'me phaello e phahameng haholo e ka finyelloa ka ho eketsa matla a leeme. PPD e na le monyetla o moholo oa ts'ebeliso ts'ebelisong e tlase ea matla le lits'ebetso tse matlafatsang tsa ho nahana ka kutlo e phahameng. Mosebetsi ona ha o fane feela ka bopaki ba hore GaOX ke thepa e tšepisang ea matla a phahameng a photodetector, empa hape e fana ka leano le lecha la ho lemoha ts'ebetso e phahameng ea li-photodetectors tsa matla a phahameng.