产品 信息 磷化镓 (GaP)是制作半导体发光器件的重要材料。其晶体是橙色透明的,具有闪锌矿结构,晶格常数为5.45?,解理面为{110}面,禁带宽度为2.26eV。与砷化镓不同,磷化镓是一种间接带隙材料。当引入能形成等电子陷阱的杂质后,其发光效率会大大提高,并且能根据引入杂质的不同而发出不同颜色的光。例如在磷化镓中掺入氮则发绿光,掺入锌-氧对则发红光,因此磷化镓是制作可见光发光二极管和数码管等光电显示器件的重要材料。 用于太阳能电池转换率高的InGaAsP/InP等半导体中。发光二极管大量用于控制灯、显示仪表或面发光元件等,发光二极管所用磷化物半导体有GaP、GaAsP等。红色发光二极管使用GaP或GaAsP等。
GaP wafers for LPE
Conductivity Type | n-type | p-type | |
Growth method / Dopant | LEC/S | LEC/Si | LEC/Zn |
Carrier concentration (cm-3) | *(1>÷20) x 1017 | (1÷10) x 1018 | |
Resistivity (Ω x cm) | 0,250÷0,100 | 0,04÷0,02 | |
Mobility (cm2/V x sec) | 150÷101 | ≥40 | |
EPD average (cm-2) | ≤1 x 105 | ||
Diameter (mm)** | 50.8±0.2 | ||
Standard thickness ** (*m) | 290±10 | ||
Orientation** | (111) | ||
Surface quality | front side - as cut | ||
Bow | <10 | ||
TTV | <10 | ||
GaP wafers for MOCVD
Conductivity Type | n-type | |
Growth method / Dopant | LEC/S | |
Carrier concentration (cm-3) | (5÷20) x 1017 | |
Resistivity (Ω x cm) | 0.10÷0.04 | |
Mobility (cm2/V x sec) | ≥50 | |
EPD average (cm-2) | ≤1 x 105 | |
Diameter (mm)* | 50.8±0.2 | 76.2±0.2 |
Standard thickness * (*m) | 300±20 | 350±20 |
Orientation* | (100)*** | |
Surface quality | front side - epi-ready | |
Bow | <10 | <15 |
TTV | <7 | <15 |
GaP wafers for optics
Conductivity Type | n-type | |
Growth method / Dopant | LEC/undoped | |
Carrier concentration (cm-3) | <2 x 1016 | |
Mobility (cm2/V x sec) | ≥180 | |
EPD average (cm-2) | ≤2 x 105 | |
Absorption coefficient (cm-1) | 1.93 (D=580 nm) | |
Diameter (mm)* | 50.8±0.2 | 76.2±0.2 |
Standard thickness * (*m) | ≥300 | ≥500 |
Orientation | (100)/(111) | |
Surface quality | front side - optically polished/as cut |
Semi-insulating GaP wafers
Conductivity Type | i-type | |
Growth method / Dopant | LEC/Cr/Ni/Mn | |
Resistivity (Ω x cm) | ≥106 | |
EPD average (cm-2) | ≤2 x 105 | |
Diameter (mm) | 50.8±0.2 | 76.2±0.2 |
Standard thickness * (*m) | 300±20 | 350±20 |
Orientation | (100)/(111) | |
Mis-orientation | 0-10º toward any plane upon request | 0-5º toward any plane upon request |
Surface quality | front side - epi-ready | |
Bow | <10 | <15 |
TTV | <10 | <15 |
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