Mphamvu ya diode ya silicon carbide yamphamvu kwambiri pa PIN Photodetector

Mphamvu ya diode ya silicon carbide yamphamvu kwambiri paChowunikira Chithunzi cha PIN

Diode ya PIN ya silicon carbide yamphamvu kwambiri nthawi zonse yakhala imodzi mwa malo ofunikira kwambiri pa kafukufuku wa zida zamagetsi. Diode ya PIN ndi diode ya kristalo yopangidwa mwa kuyika wosanjikiza wa semiconductor yamkati (kapena semiconductor yokhala ndi zonyansa zochepa) pakati pa dera la P+ ndi dera la n+. I mu PIN ndi chidule cha Chingerezi cha tanthauzo la "mkati", chifukwa sizingatheke kukhala ndi semiconductor yoyera popanda zonyansa, kotero wosanjikiza wa I wa diode ya PIN mu ntchitoyo umasakanikirana pang'ono ndi zonyansa zamtundu wa P kapena N. Pakadali pano, diode ya PIN ya silicon carbide imagwiritsa ntchito kapangidwe ka Mesa ndi kapangidwe kake.

Pamene ma frequency ogwiritsira ntchito a PIN diode apitirira 100MHz, chifukwa cha zotsatira zosungira za zonyamulira zingapo komanso zotsatira za nthawi yodutsa mu gawo I, diode imataya mphamvu yokonzanso ndipo imakhala chinthu cha impedance, ndipo mtengo wake wa impedance umasintha ndi mphamvu ya bias. Pa zero bias kapena DC reverse bias, impedance mu gawo la I imakhala yokwera kwambiri. Mu DC forward bias, dera la I limakhala ndi vuto lotsika la impedance chifukwa cha jakisoni wa carrier. Chifukwa chake, PIN diode ingagwiritsidwe ntchito ngati chinthu chosinthira impedance, m'munda wa microwave ndi RF control, nthawi zambiri ndikofunikira kugwiritsa ntchito zida zosinthira kuti mukwaniritse kusintha kwa chizindikiro, makamaka m'malo ena owongolera chizindikiro chapamwamba, ma PIN diode ali ndi mphamvu zapamwamba zowongolera chizindikiro cha RF, komanso amagwiritsidwa ntchito kwambiri mu gawo losintha, kusintha, kuchepetsa ndi ma circuits ena.

Diode ya silicon carbide yamphamvu kwambiri imagwiritsidwa ntchito kwambiri pamagetsi chifukwa cha mphamvu zake zapamwamba zotsutsa magetsi, makamaka ngati chubu chowongolera magetsi champhamvu kwambiri.PIN diodeIli ndi mphamvu yayikulu yosinthira mphamvu yosinthira mphamvu ya VB, chifukwa cha doping i yomwe ili pakati yomwe imanyamula kutsika kwa mphamvu yayikulu. Kuonjezera makulidwe a dera I ndikuchepetsa kuchuluka kwa doping ya dera Nditha kukonza bwino mphamvu yosinthira mphamvu ya PIN diode, koma kukhalapo kwa dera I kudzawongolera kutsika kwa mphamvu ya VF ya chipangizo chonse komanso nthawi yosinthira ya chipangizocho pamlingo winawake, ndipo diode yopangidwa ndi zinthu za silicon carbide ikhoza kubweza zofooka izi. Silicon carbide nthawi 10 kuposa gawo lamagetsi losinthira mphamvu ya silicon, kotero kuti makulidwe a dera la silicon carbide diode I akhoza kuchepetsedwa kufika pa gawo limodzi mwa magawo khumi a chubu cha silicon, pomwe ikusunga mphamvu yayikulu yosinthira mphamvu, kuphatikiza ndi kutentha kwabwino kwa zinthu za silicon carbide, sipadzakhala mavuto owonekera otaya kutentha, kotero diode ya silicon carbide yamphamvu kwambiri yakhala chipangizo chofunikira kwambiri chosinthira mphamvu m'munda wamagetsi amakono.

Chifukwa cha mphamvu yake yaying'ono yobwerera m'mbuyo komanso kuyenda kwamphamvu kwa carrier, ma silicon carbide diode amakopa kwambiri pakuwunika kwa photoelectric. Mphamvu yaying'ono yotuluka imatha kuchepetsa mphamvu yakuda ya detector ndikuchepetsa phokoso; Kuyenda kwa carrier yayikulu kumatha kusintha bwino mphamvu ya silicon carbide.Chowunikira PIN(PIN Photodetector). Makhalidwe amphamvu kwambiri a ma silicon carbide diode amathandiza ma PIN detector kuzindikira magwero amphamvu a kuwala ndipo amagwiritsidwa ntchito kwambiri mumlengalenga. Silicon carbide diode yamphamvu kwambiri yakhala ikusamalidwa chifukwa cha makhalidwe ake abwino kwambiri, ndipo kafukufuku wake wapangidwanso kwambiri.