Mmetụta nke silicon carbide diode dị elu na PIN Photodetector
Silicon carbide PIN diode nwere ikike dị elu bụ otu n'ime ebe na-ekpo ọkụ na ngalaba nyocha ngwaọrụ ike. PIN diode bụ diode kristal wuru site na sandwiching oyi akwa nke semiconductor intrinsic (ma ọ bụ semiconductor nwere obere ntinye nke adịghị ọcha) n'etiti mpaghara P+ na mpaghara n+. The i na PIN bụ abbreviation nke bekee maka ihe pụtara "intrinsic", n'ihi na ọ gaghị ekwe omume ịdị adị semiconductor dị ọcha na-enweghị adịghị ọcha, ya mere I oyi akwa nke PIN diode na ngwa na-ejikọta ya na obere P. -ụdị ma ọ bụ N-ụdị adịghị ọcha. Ugbu a, silicon carbide PIN diode na-anabata usoro Mesa na nhazi ụgbọ elu.
Mgbe ugboro ole PIN diode na-arụ ọrụ karịrị 100MHz, n'ihi mmetụta nchekwa nke ndị na-ebu ole na ole na oge ntụgharị na oyi akwa I, diode na-efunahụ mmetụta mmezi ahụ wee ghọọ ihe mgbochi, ọnụ ahịa impedance ya na-agbanwe na voltaji ele anya. Na efu eleghi anya ma ọ bụ DC na-atụgharị uche, mgbochi na mpaghara m dị oke elu. Na nhụsianya na-aga n'ihu nke DC, mpaghara I na-egosi ọnọdụ mgbochi dị ala n'ihi ịgba ọgwụ mgbochi ụgbọelu. Ya mere, enwere ike iji PIN diode mee ihe dị ka ihe na-agbanwe agbanwe, n'ọhịa nke microwave na njikwa RF, ọ na-adịkarị mkpa iji ngwaọrụ ntụgharị iji nweta ngbanwe mgbaàmà, karịsịa na ụfọdụ ebe nchịkwa mgbaàmà dị elu, PIN diodes nwere elu karịa. Ikike njikwa akara ngosi RF, mana ejirikwa ya n'ọtụtụ ebe na ngbanwe oge, mgbanwe, mmachi na sekit ndị ọzọ.
A na-eji silicon carbide diode dị elu mee ihe n'ọhịa ike n'ihi njirimara nguzogide voltaji ya, nke a na-ejikarị dị ka tube rectifier dị elu. The PIN diode nwere elu reverse oké egwu ndakpọ voltaji VB, n'ihi ala doping i oyi akwa n'etiti na-ebu isi voltaji dobe. Ịbawanye ọkpụrụkpụ nke mpaghara m na ibelata ntinye doping nke mpaghara m nwere ike imeziwanye voltaji ndakpọ nke PIN diode, mana ọnụnọ nke mpaghara m ga-emeziwanye voltaji na-ebugharị VF nke ngwaọrụ niile na oge ngbanwe nke ngwaọrụ ahụ. ruo n'ókè ụfọdụ, na diode mere nke silicon carbide ihe nwere ike ime ka ndị a erughi eru. Silicon carbide ugboro 10 dị oke egwu mmebi eletrik eletrik nke silicon, nke mere na silicon carbide diode I zone ọkpụrụkpụ nwere ike belata ka ọ bụrụ otu ụzọ n'ụzọ iri nke silicon tube, ebe ị na-ejigide voltaji ndakpọ dị elu, yana ezigbo ikuku ọkụ nke ihe silicon carbide. , A gaghị enwe nsogbu ikpo ọkụ ọkụ doro anya, ya mere silicon carbide diode dị elu aghọwo ngwaọrụ rectifier dị oke mkpa n'ọhịa nke eletrik eletrik nke oge a.
N'ihi obere mwepu azụ ya dị ugbu a yana nnukwu ihe na-ebu ibu, diodes silicon carbide nwere nnukwu mmasị na mpaghara nchọpụta fotoelectric. Obere ntapu nke ugbu a nwere ike ibelata oge ọchịchịrị nke ihe nchọta ma belata mkpọtụ; Mbugharị ụgbọ elu dị elu nwere ike imeziwanye nghọta nke ihe nchọpụta PIN nke silicon carbide (PIN Photodetector). Njirimara dị elu nke silicon carbide diodes na-enyere ndị na-achọpụta PIN aka ịchọpụta isi mmalite ọkụ siri ike ma na-eji ya eme ihe n'ọhịa. A na-elebara diode silicon carbide diode dị elu anya n'ihi njirimara ya mara mma, na nchọpụta ya emebekwara nke ukwuu.
Oge nzipu: Ọktoba 13-2023