Ka hopena o ka diode carbide silicon mana kiʻekiʻe ma ka PIN Photodetector

Ka hopena o ka diode silicon carbide mana kiʻekiʻe ma luna oMea ʻike kiʻi PIN

ʻO ka diode PIN silicon carbide mana kiʻekiʻe kekahi o nā wahi wela i ke kahua o ka noiʻi ʻana i nā mea mana. ʻO ka diode PIN kahi diode kristal i kūkulu ʻia ma ke kāwili ʻana i kahi papa o ka semiconductor intrinsic (a i ʻole semiconductor me ka haʻahaʻa o ka haumia) ma waena o ka ʻāpana P + a me ka ʻāpana n +. ʻO ka i ma PIN kahi pōkole Pelekania no ke ʻano o "intrinsic", no ka mea hiki ʻole ke ola i kahi semiconductor maʻemaʻe me ka ʻole o nā haumia, no laila ua hui pū ʻia ka papa I o ka diode PIN i ka noi me kahi liʻiliʻi o nā haumia P-type a i ʻole N-type. I kēia manawa, hoʻohana nui ka diode PIN silicon carbide i ka ʻano Mesa a me ka ʻano mokulele.

Ke ʻoi aku ka alapine hana o ka diode PIN ma mua o 100MHz, ma muli o ka hopena mālama o kekahi mau mea lawe a me ka hopena manawa transit ma ka papa I, nalowale ka diode i ka hopena hoʻoponopono a lilo i mea impedance, a loli kona waiwai impedance me ka voltage bias. Ma ka bias ʻole a i ʻole ka bias reverse DC, kiʻekiʻe loa ka impedance ma ka ʻāpana I. Ma ka bias mua DC, hōʻike ka ʻāpana I i kahi kūlana impedance haʻahaʻa ma muli o ka injection mea lawe. No laila, hiki ke hoʻohana ʻia ka diode PIN ma ke ʻano he mea impedance loli, ma ke kahua o ka microwave a me ka mana RF, pono pinepine e hoʻohana i nā mea hoʻololi e hoʻokō i ka hoʻololi hōʻailona, ​​​​ʻoi aku hoʻi ma kekahi mau kikowaena hoʻomalu hōʻailona alapine kiʻekiʻe, loaʻa i nā diode PIN nā mana hoʻomalu hōʻailona RF kiʻekiʻe, akā hoʻohana nui ʻia i ka hoʻololi pae, modulation, palena a me nā kaapuni ʻē aʻe.

Hoʻohana nui ʻia ka diode silicon carbide mana kiʻekiʻe i ke kahua mana ma muli o kona mau ʻano kū'ē voltage kiʻekiʻe, hoʻohana nui ʻia e like me ka paipu rectifier mana kiʻekiʻe.ʻO ka diode PINLoaʻa iā ia kahi volta hoʻopau koʻikoʻi kiʻekiʻe VB, ma muli o ka papa doping i haʻahaʻa ma waena e lawe ana i ka hāʻule volta nui. ʻO ka hoʻonui ʻana i ka mānoanoa o ka zone I a me ka hoʻemi ʻana i ka doping concentration o ka zone I hiki ke hoʻomaikaʻi maikaʻi i ka volta hoʻopau hoʻihoʻi o ka diode PIN, akā ʻo ke alo o ka zone I e hoʻomaikaʻi i ka hāʻule volta mua VF o ka hāmeʻa holoʻokoʻa a me ka manawa hoʻololi o ka hāmeʻa i kekahi ʻano, a hiki i ka diode i hana ʻia me ka mea silicon carbide ke hana no kēia mau hemahema. ʻO ka Silicon carbide he 10 mau manawa o ke kahua uila haki koʻikoʻi o ka silicon, i hiki ai ke hoʻemi ʻia ka mānoanoa o ka silicon carbide diode I zone i hoʻokahi hapaʻumi o ka paipu silicon, me ka mālama ʻana i kahi volta haki kiʻekiʻe, me ka conductivity thermal maikaʻi o nā mea silicon carbide, ʻaʻohe pilikia hoʻoheheʻe wela maopopo, no laila ua lilo ka diode silicon carbide mana kiʻekiʻe i mea hoʻoponopono koʻikoʻi loa ma ke kahua o nā mea uila mana hou.

Ma muli o kona kahe liʻiliʻi loa o ke kahe leaka hoʻohuli a me ka neʻe kiʻekiʻe o ka mea lawe, he mea hoihoi nui nā diode silicon carbide i ke kahua o ka ʻike photoelectric. Hiki i ke kahe leaka liʻiliʻi ke hōʻemi i ke kahe pouli o ka mea ʻike a hōʻemi i ka walaʻau; Hiki i ka neʻe kiʻekiʻe o ka mea lawe ke hoʻomaikaʻi maikaʻi i ka ʻike o ka silicon carbide.Mea ʻike PIN(PIN Photodetector). ʻO nā ʻano mana kiʻekiʻe o nā diode silicon carbide e hiki ai i nā mea ʻike PIN ke ʻike i nā kumu kukui ikaika a hoʻohana nui ʻia ma ke kahua ākea. Ua nānā nui ʻia ka diode silicon carbide mana kiʻekiʻe ma muli o kona mau ʻano maikaʻi loa, a ua hoʻomohala nui ʻia kāna noiʻi.