Mhedzisiro yeakakwira-simba silicon carbide diode paPIN Photodetector
Yakakwira-simba silicon carbide PIN diode yagara iri imwe yenzvimbo hotspots mumunda wekutsvagisa magetsi mudziyo. A PIN diode icrystal diode yakavakwa nesandwiching layer ye intrinsic semiconductor (kana semiconductor ine yakaderera kusvibiswa kwetsvina) pakati peP+ dunhu nen+ dunhu. Iyo i muPIN chidimbu cheChirungu chezvinoreva "mukati", nekuti hazvibviri kuvepo semiconductor yakachena isina tsvina, saka iyo I layer yePIN diode mukushandisa inosanganiswa nehuwandu hudiki hweP-mhando kana N-mhando yekusachena. Parizvino, iyo silicon carbide PIN diode inonyanya kutora Mesa chimiro uye ndege chimiro.
Kana iyo frequency yekushandisa yePIN diode ichipfuura 100MHz, nekuda kwekuchengetedza mhedzisiro yevatakuri vashoma uye yekufambisa nguva muganho I, iyo diode inorasikirwa nekugadzirisa maitiro uye inova chinhu che impedance, uye kukosha kwayo kwe impedance kunoshanduka neiyo bias voltage. Pane zero bias kana DC reverse bias, iyo impedance munharaunda yeI yakakwira zvakanyanya. MuDC kumberi kurerekera, iyo I dunhu rinopa yakaderera impedance mamiriro nekuda kwejekiseni rekutakura. Naizvozvo, iyo PIN diode inogona kushandiswa seyakasiyana impedance chinhu, mumunda we microwave uye RF kutonga, zvinowanzo fanira kushandisa zvigadziriso zvekuchinja kuti uwane masaini switch, kunyanya mune dzimwe yakakwirira-frequency chiratidzo chekudzora nzvimbo, maPIN diode ane epamusoro RF chiratidzo chekudzora masimba, asi zvakare anoshandiswa zvakanyanya muchikamu chekuchinja, modulation, kudzikisira uye mamwe maseketi.
Yepamusoro-simba silicon carbide diode inoshandiswa zvakanyanya mumunda wemagetsi nekuda kwehukuru hwayo hwekupikisa hunhu, inonyanya kushandiswa seyepamusoro-simba rectifier chubhu. ThePIN diodeine yakakwira reverse yakakosha breakdown voltage VB, nekuda kweiyo yakaderera doping i layer pakati inotakura main voltage donho. Kuwedzera kukora kwenzvimbo I uye nekudzikisira kusungirirwa kwedoping yenzvimbo ini ndinogona kunyatso kuvandudza reverse breakdown voltage yePIN diode, asi kuvepo kwenzvimbo ini ndichavandudza kumberi kwemagetsi kudonhedza VF yechishandiso chese uye nguva yekuchinja kwechishandiso kusvika pamwero wakati, uye diode yakagadzirwa nesilicon carbide zvinhu inogona kugadzirisa izvo zvinoshomeka. Silicon carbide kanokwana kagumi kuparara kwemagetsi esilicon, kuitira kuti iyo silicon carbide diode I zone ukobvu inogona kudzikiswa kusvika pachikamu chimwe chete chegumi chesilicon chubhu, ichichengeta yakakwira yekuparara kwemagetsi, pamwe chete nekunaka kwekupisa kwesilicon carbide zvinhu, hapazove nekujeka kwekupisa kupisa matambudziko, saka yakakwira-simba resimbi resilicon yemagetsi mota ine simba razvino. zvemagetsi.
Nekuda kweiyo diki diki reverse leakage ikozvino uye yakakwirira inotakura kufamba, silicon carbide diode ine kukwezva kukuru mumunda wekuona mafotoelectric. Diki yekudonha ikozvino inogona kuderedza yakasviba ikozvino ye detector uye kuderedza ruzha; Kufamba kwepamusoro kwekutakura kunogona kuvandudza kunzwisisika kwesilicon carbidePIN detector(Pin Photodetector). Iwo epamusoro-simba maitiro esilicon carbide diode anogonesa maPIN ma detectors kuona akasimba emwenje masosi uye anoshandiswa zvakanyanya mumunda wemuchadenga. Simba repamusoro silicon carbide diode yakabhadharwa nekuda kwehunhu hwayo hwakanaka, uye tsvakiridzo yayo yakagadziridzwa zvakanyanya.
Nguva yekutumira: Oct-13-2023