Phello ea matla a phahameng a silicon carbide diode hoPIN Photodetector
Matla a phahameng a silicon carbide PIN diode esale e le e 'ngoe ea libaka tse hotspots lefapheng la lipatlisiso tsa lisebelisoa tsa matla. PIN diode ke kristale diode e hahiloeng ka sandwiching lesela la intrinsic semiconductor (kapa semiconductor e nang le khatello e tlase ea litšila) lipakeng tsa sebaka sa P+ le sebaka sa n+. The i in PIN ke khutsufatso ea Senyesemane bakeng sa moelelo oa "intrinsic", hobane ho ke ke ha khoneha ho ba teng semiconductor e hloekileng ntle le litšila, kahoo I layer ea PIN diode ts'ebelisong e batla e kopane le palo e nyane ea mofuta oa P kapa litšila tsa mofuta oa N. Hajoale, silicon carbide PIN diode e amohela haholo sebopeho sa Mesa le sebopeho sa sefofane.
Ha lebelo la ts'ebetso la PIN diode le feta 100MHz, ka lebaka la phello ea polokelo ea bajari ba 'maloa le phello ea nako ea ho tsamaea sebakeng sa I, diode e lahleheloa ke phello ea ho lokisoa' me e fetoha karolo ea impedance, 'me boleng ba eona ba impedance bo fetoha ka matla a leeme. Ka leeme la zero kapa DC reverse bias, impedance sebakeng sa I e phahame haholo. Ho khethollo ea pele ea DC, sebaka sa I se fana ka boemo bo tlase ba ho itšireletsa ka lebaka la ente ea sephethephethe. Ka hona, PIN diode e ka sebelisoa e le ntho e feto-fetohang ea ho thibela matla, tšimong ea microwave le taolo ea RF, hangata hoa hlokahala ho sebelisa lisebelisoa tsa ho fetola ho finyella phetoho ea matšoao, haholo-holo libakeng tse ling tsa taolo ea maqhubu a phahameng, li-PIN diode li na le matla a ho laola matshwao a RF, empa hape li sebelisoa haholo ho feto-fetoha, ho feto-fetoha ha maemo, ho fokotsa le lipotoloho tse ling.
silicon carbide diode ea matla a phahameng e sebelisoa haholo sebakeng sa motlakase ka lebaka la litšobotsi tsa eona tse phahameng tsa ho hanyetsa motlakase, haholo-holo e sebelisoang e le li-tube tse lokisang matla a phahameng. ThePIN diodee na le "voltage" ea VB e phahameng ka ho fetesisa, ka lebaka la "doping I layer" e tlase e nkileng phokotso e kholo ea motlakase. Ho eketsa botenya ba Zone I le ho fokotsa khatello ea doping ea libaka, nka ntlafatsa ka nepo matla a ho senyeha ha PIN diode, empa boteng ba sebaka seo ke tla ntlafatsa VF ea VF ea sesebelisoa kaofela le nako ea ho fetola sesebelisoa ho isa bohōleng bo itseng, 'me diode e entsoeng ka silicon carbide e ka etsa mefokolo ena. Silicon carbide makhetlo a 10 ho senyeha ha motlakase oa silicon, e le hore botenya ba silicon carbide diode I zone bo ka fokotsoa ho karolo ea leshome ea tube ea silicon, ha ho ntse ho bolokoa motlakase o mongata oa ho senya, hammoho le mocheso o motle oa thepa ea silicon carbide, ho ke ke ha e-ba le mathata a hlakileng a ho qhala mocheso, kahoo koloi ea morao-rao ea matla a matla a motlakase e fetoha matla a matla a silicon. lisebelisoa tsa elektronike.
Ka lebaka la ts'ebetso ea eona e nyane haholo ea ho lutla ha morao-rao le e tsamaisang thepa e phahameng, li-silicon carbide diode li na le khoheli e kholo lebaleng la tlhahlobo ea motlakase. Nako e nyane ea ho lutla e ka fokotsa maqhubu a lefifi a detector le ho fokotsa lerata; Ho tsamaea ho phahameng ho ka ntlafatsa kutloisiso ea silicon carbideMohloli oa PIN(PIN Photodetector). Litšobotsi tse matla tsa silicon carbide diode li nolofalletsa li-detectors tsa PIN ho lemoha mehloli e matla ea leseli 'me li sebelisoa haholo sebakeng sa sebaka. Matla a phahameng a silicon carbide diode e lebisitsoe tlhokomelo ho eona ka lebaka la litšobotsi tsa eona tse babatsehang, 'me lipatlisiso tsa eona le tsona li ntlafalitsoe haholo.
Nako ea poso: Oct-13-2023