Mmetụta nke diode silicon carbide dị elu naIhe nchọpụta foto PIN
Diode PIN silicon carbide dị elu abụrụla otu n'ime ihe ndị na-eme ka nchọpụta ngwaọrụ ike dịkwuo mma. Diode PIN bụ diode kristal e ji mee ihe site n'ịtinye oyi akwa nke semiconductor intrinsic (ma ọ bụ semiconductor nwere obere ihe na-adịghị ọcha) n'etiti mpaghara P+ na mpaghara n+. I dị na PIN bụ mkpọbiri Bekee maka ihe "intrinsic", n'ihi na ọ gaghị ekwe omume inwe semiconductor dị ọcha na-enweghị ihe ruru unyi, yabụ oyi akwa I nke diode PIN dị na ngwa ahụ na-agwakọta ya na obere ihe ruru unyi P ma ọ bụ ụdị N. Ugbu a, diode PIN silicon carbide na-ejikarị usoro Mesa na nhazi ụgbọelu eme ihe.
Mgbe ugboro ọrụ nke diode PIN karịrị 100MHz, n'ihi mmetụta nchekwa nke ndị na-ebu ibu ole na ole na mmetụta oge njem na oyi akwa I, diode ahụ na-efunahụ mmetụta ndozi ma ghọọ ihe mgbochi, uru mgbochi ya na-agbanwekwa na voltaji bias. Na enweghị bias ma ọ bụ DC reverse bias, impedance na mpaghara I dị elu nke ukwuu. Na DC reward bias, mpaghara I na-egosi ọnọdụ impedance dị ala n'ihi injection onye na-ebu ibu. Ya mere, enwere ike iji diode PIN dị ka ihe mgbochi mgbanwe, na mpaghara nke microwave na njikwa RF, ọ na-adịkarị mkpa iji ngwaọrụ mgbanwe iji nweta mgbanwe mgbaàmà, karịsịa na ụfọdụ ebe njikwa mgbaàmà ugboro ugboro dị elu, diode PIN nwere ikike njikwa mgbaàmà RF dị elu, mana a na-ejikwa ya nke ukwuu na mgbanwe usoro, modulation, mmachi na sekit ndị ọzọ.
A na-ejikarị diode silicon carbide dị ike eme ihe n'ọhịa ike n'ihi njirimara iguzogide voltaji dị elu, nke a na-ejikarị eme ihe dị ka tube rectifier dị ike.Diode PINnwere voltaji mgbawa dị elu nke VB, n'ihi obere oyi akwa doping i dị n'etiti na-ebu mbelata voltaji bụ isi. Ịbawanye ọkpụrụkpụ nke mpaghara I na ibelata njupụta doping nke mpaghara M nwere ike imeziwanye voltaji mgbawa azụ nke diode PIN nke ọma, mana ọnụnọ nke mpaghara M ga-eme ka mbelata voltaji gaa n'ihu VF nke ngwaọrụ ahụ dum na oge mgbanwe nke ngwaọrụ ahụ ruo n'ókè ụfọdụ, diode ejiri ihe silicon carbide mee nwere ike imezu ụkọ ndị a. Silicon carbide okpukpu iri nke ubi eletriki mgbawa dị mkpa nke silicon, ka ọkpụrụkpụ mpaghara silicon carbide diode I wee nwee ike ibelata ruo otu ụzọ n'ụzọ iri nke tube silicon, ebe ọ na-ejigide voltaji mgbawa dị elu, yana ezigbo conductivity okpomọkụ nke ihe silicon carbide, agaghị enwe nsogbu mgbasa okpomọkụ doro anya, yabụ diode silicon carbide dị elu aghọwo ngwaọrụ rectifier dị oke mkpa n'ọhịa nke eletrọniki ike nke oge a.
N'ihi obere mmiri ozuzo azụ ya na nnukwu mbugharị ya, diode silicon carbide nwere nnukwu mmasị n'ọhịa nchọpụta fotoelectric. Obere mmiri ozuzo nwere ike ibelata mmiri ozuzo gbara ọchịchịrị nke ihe nchọpụta ahụ ma belata mkpọtụ; Mbugharị dị elu nwere ike ime ka mmetụta nke silicon carbide dịkwuo mma nke ọma.ihe nchọpụta PIN(PIN Photodetector). Àgwà dị ike nke silicon carbide diodes na-enye ndị na-achọpụta PIN ohere ịchọpụta isi iyi ọkụ siri ike ma a na-ejikarị ha eme ihe n'ọhịa mbara igwe. A lebara diode silicon carbide dị ike anya n'ihi àgwà ya dị mma, a mekwara nnyocha ya nke ọma.
Oge ozi: Ọktoba-13-2023