Se photodetector ke eng

Ke eng aKe photodetector

Ka tsoelo-pele e potlakileng ea theknoloji ea morao-rao, li-photodetectors, e le sesebelisoa sa bohlokoa sa kutlo, butle-butle li fihlile ponong ea batho. Haholo-holo Si photodetector (silicon photodetector), ka ts'ebetso ea bona e phahameng le litebello tse pharaletseng tsa ts'ebeliso, li fumane tlhokomelo e kholo. Sengoliloeng sena se tla fana ka tlhaloso e tebileng empa e le bonolo ho e utloisisa ea melao-motheo, likarolo tsa sebopeho, likarolo tsa ts'ebeliso, le mekhoa ea nakong e tlang ea nts'etsopele ea li-silicon photodetectors bakeng sa motho e mong le e mong.

Molao-motheo oa motheo oa Si photodetectors o itšetlehile ka phello ea photoelectric. Ha photon e otla lisebelisoa tsa semiconductor, lipara tsa electron-hole lia etsoa, ​​​​tseo le tsona li etsang motlakase. Lisebelisoa tsa silicon li na le mekhoa e metle ea ho monya leseli, haholo-holo lihlopheng tse bonahalang le tse haufi le infrared, ka hona li loketse haholo ho sebelisoa e le lisebelisoa tsa motheo bakeng sa li-photodetectors. Molao-motheo oa ts'ebetso oa Si photodetectors o ka akaretsoa feela ka mehato e 'maloa: liketsahalo tsa photon, ho kenngoa ha photon, tlhahiso ea mochine le tlhahiso ea hona joale.

Mabapi le sebopeho sa li-photodetectors tsa silicon, hangata li arotsoe ka likarolo tse 'maloa tse kholo: lera le amohelang leseli, lera la phaello le lesela la electrode. Lesela le amohelang leseli le na le boikarabello ba ho monya leseli la ketsahalo le ho hlahisa bajari, ha karolo ea phaello e sebelisoa ho eketsa palo ea bajari, ka tsela eo e matlafatsa kutlo ea detector. Lera la electrode le na le boikarabelo ba ho bokella bajari le ho etsa lipontšo tsa hona joale. Sebopeho se entsoeng hantle se ka ntlafatsa ts'ebetso ea mochine, joalo ka ho ntlafatsa bokhoni ba ho fetola photoelectric le ho fokotsa lerata.

Mabaka a ts'ebeliso ea silicon photodetector a pharalletse haholo, a akaretsa likarolo tse ngata joalo ka puisano, ho nka litšoantšo le ho beha leihlo tikoloho. Puisanong ea optical, li-detectors tse thehiloeng ka silicon li sebelisoa ho amohela matšoao a optical le ho li fetola matšoao a motlakase ho netefatsa hore boitsebiso bo tsamaisoa ka potlako. Lefapheng la ho nka litšoantšo, Si photodetector e atisa ho sebelisoa lik'hamera tsa digital le lik'hamera tsa marang-rang ho thusa ho nka litšoantšo tse hlakileng. Si photodetector e ka boela ea sebelisoa ho lekola tikoloho, ho khetholla maemo a tikoloho ka ho beha leihlo liphetoho tsa leseli, joalo ka ho bona boteng ba lintho tse silafatsang.

Nakong e tlang, mekhoa ea nts'etsopele ea silicon photodetector e tla bonahala haholo-holo likarolong tse latelang. Mekhoa e mecha ea thepa e lebelletsoe ho ntlafatsa ts'ebetso ea li-detectors, joalo ka ts'ebeliso ea li-alloys tse ncha kapa lisebelisoa tse kopaneng ho eketsa bokhoni ba ho monya leseli le ho ntlafatsa ts'ebetso ea quantum. Ntlafatso ea moralo oa sebopeho le eona ke tataiso ea bohlokoa. Ka theknoloji ea microfabrication, miniaturization le kopanyo li ka finyelloa ho matlafatsa kutloisiso le lebelo la karabo eaphotodetector. Ka ho kopanya theknoloji e tsoetseng pele ea ho sebetsana le matšoao, tekanyo ea pontšo-ho-lerata ea mochine o ka ntlafatsoa le ho feta, ho netefatsa botsitso ba eona libakeng tse rarahaneng. Si photodetector, e le sesebelisoa sa bohlokoa sa sensor, butle-butle se fetola bophelo ba rona ka ts'ebetso ea bona e ntle haholo le tebello e pharaletseng ea ts'ebeliso. Ka tsoelopele e tsoelang pele ea thekenoloji, li-photodetectors tse thehiloeng ka silicon li tla bapala karolo ea bohlokoa mafapheng a mangata, ho tlisa menyetla e mengata ho bokamoso ba rona.