Kenyelletso ea moloko oa boraro oa semiconductor GaN le theknoloji e amanang le epitaxial

1. Li-semiconductors tsa moloko oa boraro

Theknoloji ea semiconductor ea moloko oa pele e ile ea ntlafatsoa ho latela lisebelisoa tsa semiconductor tse kang Si le Ge. Ke motheo oa lisebelisoa bakeng sa nts'etsopele ea li-transistors le theknoloji e kopanetsoeng ea potoloho. Lisebelisoa tsa semiconductor tsa moloko oa pele li ile tsa rala motheo oa indasteri ea elektronike lekholong la bo20 la lilemo 'me ke lisebelisoa tsa motheo bakeng sa theknoloji e kopanetsoeng ea potoloho.

Lisebelisoa tsa semiconductor tsa moloko oa bobeli li kenyelletsa haholo-holo gallium arsenide, indium phosphide, gallium phosphide, indium arsenide, aluminium arsenide le metsoako ea tsona ea ternary. Lisebelisoa tsa semiconductor tsa moloko oa bobeli ke motheo oa indasteri ea tlhahiso-leseling ea optoelectronic. Motheong ona, ho entsoe liindasteri tse amanang le tsona tse kang mabone, pontšo, laser, le photovoltaics. Li sebelisoa haholo ho theknoloji ea sejoale-joale ea tlhahisoleseling le indastering ea ponts'o ea optoelectronic.

Lisebelisoa tsa moemeli oa lisebelisoa tsa semiconductor tsa moloko oa boraro li kenyelletsa gallium nitride le silicon carbide. Ka lebaka la lekhalo le pharaletseng la sehlopha, lebelo le phahameng la elektronike saturation drift, conductivity e phahameng ea mocheso, le matla a maholo a ho senyeha ha tšimo, ke lisebelisoa tse loketseng bakeng sa ho lokisa lisebelisoa tsa elektroniki tse nang le matla a phahameng, maqhubu a phahameng le tahlehelo e tlase. Har'a tsona, lisebelisoa tsa motlakase tsa silicon carbide li na le melemo ea matla a phahameng a matla, tšebeliso e tlase ea matla, le boholo bo nyane, 'me li na le tebello e pharaletseng ea ts'ebeliso ea likoloi tse ncha tsa matla, li-photovoltaics, lipalangoang tsa terene, data e kholo le likarolo tse ling. Lisebelisoa tsa RF tsa Gallium nitride li na le melemo ea maqhubu a phahameng, matla a phahameng, bandwidth e pharaletseng, tšebeliso e tlaase ea matla le boholo bo fokolang, 'me e na le tebello e pharaletseng ea tšebeliso ea puisano ea 5G, Inthanete ea Lintho, radar ea sesole le masimo a mang. Ho phaella moo, lisebelisoa tsa motlakase tse thehiloeng ho gallium nitride li 'nile tsa sebelisoa haholo sebakeng sa motlakase o tlaase. Ntle le moo, lilemong tsa morao tjena, lisebelisoa tse ntseng li hlaha tsa gallium oxide li lebelletsoe ho theha tlatsetso ea tekheniki le mahlale a teng a SiC le GaN, 'me a be le menyetla ea ts'ebeliso libakeng tse tlase-tlase le tse phahameng haholo.

Ha ho bapisoa le lisebelisoa tsa semiconductor tsa moloko oa bobeli, lisebelisoa tsa semiconductor tsa moloko oa boraro li na le bophara bo pharaletseng ba bandgap (bophara ba bandgap ba Si, thepa e tloaelehileng ea thepa ea semiconductor ea moloko oa pele, e ka bang 1.1eV, bophara ba bandgap ba GaAs, e tloaelehileng. lisebelisoa tsa thepa ea semiconductor ea moloko oa bobeli, e ka bang 1.42eV, le bophara ba bandgap GaN, thepa e tloaelehileng ea thepa ea semiconductor ea moloko oa boraro, e ka holimo ho 2.3eV), ho hanyetsa mahlaseli a matla, ho hanyetsa ka matla ho senyeha ha masimo a motlakase, le ho hanyetsa mocheso o phahameng. Lisebelisoa tsa semiconductor tsa moloko oa boraro tse nang le bophara ba li-bandgap tse pharaletseng li loketse ka ho khetheha bakeng sa tlhahiso ea lisebelisoa tsa elektronike tse thibelang mahlaseli a kotsi, tse phahameng-frequency, tse matla le tse phahameng tsa ho kopanya. Ts'ebeliso ea bona ho lisebelisoa tsa maqhubu a seea-le-moea sa microwave, li-LED, lasers, lisebelisoa tsa motlakase le mafapha a mang li hohetse tlhokomelo e kholo, 'me ba bonts'itse litebello tse pharalletseng tsa nts'etsopele ea likhokahano tsa mehala, marang-rang a bohlale, lipalangoang tsa terene, likoloi tse ncha tsa motlakase, lisebelisoa tsa elektroniki tsa bareki, le ultraviolet le blue. - lisebelisoa tse khanyang tse tala [1].