ngwaahịa

GaAs mkpụrụ

nkowa nkenke:

1.High ire ụtọ
2.High lattice matching (MCT)
3.Low dislocation njupụta
4.High infrared transmittance


Nkọwa ngwaahịa

Mkpado ngwaahịa

Nkọwa

Gallium Arsenide (GaAs) bụ ihe dị mkpa na tozuru okè otu III-Ⅴ semiconductor compound, a na-eji ya eme ihe n'ọhịa nke optoelectronics na microelectronics.A na-ekewa GaAs ụzọ abụọ: GaA nke ọkara mkpuchi na ụdị GaAs.A na-ejikarị GaAs na-ekpuchi ọkara iji mee sekit jikọtara ọnụ na MESFET, HEMT na HBT, nke a na-eji na radar, microwave na millimeter Communications ebili mmiri, kọmpụta dị elu na-agba ọsọ na nkwukọrịta eriri anya.Ụdị N-ụdị GaA bụ nke a na-ejikarị na LD, LED, nso lasers infrared, quantum ọma lasers ike dị elu na sel anyanwụ dị elu.

Njirimara

Crystal

Doped

Ụdị omume

Nleba anya nke mmiri cm-3

Njupụta cm-2

Uzo uto
Oke oke

GaAs

Ọ dịghị

Si

/

<5×105

LEC
HB
Dia3″

Si

N

> 5×1017

Cr

Si

/

Fe

N

~2×1018

Zn

P

> 5×1017

Nkọwa mkpụrụ osisi GaAs

Mkpụrụ GaAs na-ezo aka na mkpụrụ nke gallium arsenide (GaAs) kristal emere.GaAs bụ semiconductor mejupụtara nke gallium (Ga) na arsenic (As).

A na-ejikarị ihe ndị GaAs eme ihe n'ọhịa nke eletrọnịkị na optoelectronics n'ihi njirimara ha mara mma.Ụfọdụ isi ihe eji eme ihe GaAs gụnyere:

1. High electron ngagharị: GaAs nwere elu eletrọn ngagharị karịa ndị ọzọ nkịtị semiconductor ihe dị ka silicon (Si).Njirimara a na-eme ka mkpụrụ osisi GaA dabara adaba maka ngwa eletrọnịkị dị elu na-adị elu.

2. Direct band ọdịiche: GaAs nwere a kpọmkwem band ọdịiche, nke pụtara na oru oma ìhè emission nwere ike ime mgbe electrons na oghere recombine.Njirimara a na-eme ka mkpụrụ osisi GaA dị mma maka ngwa optoelectronic dị ka ọkụ na-emitting diodes (LEDs) na lasers.

3. Wide Bandgap: GaAs nwere bandgap sara mbara karịa silicon, na-enyere ya aka ịrụ ọrụ na okpomọkụ dị elu.Ngwongwo a na-enye ohere ngwaọrụ dabere na GaA ka ọ rụọ ọrụ nke ọma na gburugburu ebe okpomọkụ dị elu.

4. Mkpọtụ ụda: GaAs substrates na-egosipụta ọkwa ụda dị ala, na-eme ka ha dị mma maka ụda ụda ụda dị ala na ngwa eletrik ndị ọzọ nwere mmetụta.

A na-eji ihe ndị GaAs eme ihe na ngwa eletrọnịkị na optoelectronic, gụnyere transistor dị elu, sekit agbakwunyere microwave (ICs), mkpụrụ ndụ fotovoltaic, ihe nchọpụta foton, na sel anyanwụ.

Enwere ike ịkwadebe mkpụrụ ndị a site na iji usoro dị iche iche dị ka Metal Organic Chemical Vapor Deposition (MOCVD), Molecular Beam Epitaxy (MBE) ma ọ bụ Liquid Phase Epitaxy (LPE).Usoro uto a kapịrị ọnụ ejiri dabere na ngwa a chọrọ yana ogo achọrọ nke mkpụrụ GaAs.


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