GaAs PV — TRISOLEGY

GaAs PV

Triple-junction and IMM technology, radiation-hardened. BOL efficiency up to 32%. Flight-proven across every orbit regime.

TJ32 Triple-Junction GaAs Solar Cell

Overview

TypeTriple-junction GaAs solar cell

SubstrateGe

Base MaterialGaInP / GaAs / Ge

AR-CoatingTiOx / Al₂O₃

Typical Size39.8 × 60.4 mm
40 × 80 mm
Other sizes can be customized

Thickness85 ± 20 μm
150 ± 20 μm
180 ± 20 μm

Mass/Area≤ 40 mg/cm²
≤ 70 mg/cm²
≤ 84 mg/cm²

Temperature Coefficients (20℃–80℃)

Jsc Temp Coeff11.0 μA/cm²/℃

Voc Temp Coeff−6.0 mV/℃

Jm Temp Coeff10.0 μA/cm²/℃

Vm Temp Coeff−6.3 mV/℃

Typical Electrical Performance (AM0, 1353 W/m², 25℃)

32%BOL Efficiency

Typical Performance Data — TJ32

Parameter	BOL	1E14	5E14	1E15
Efficiency η_bare (%)	32.0	30.4	28.3	26.9
Short Circuit J_sc (mA/cm²)	19.0	18.8	18.4	17.9
Open Circuit V_oc (V)	2.70	2.60	2.49	2.44
Current @ Max. Power J_m (mA/cm²)	18.3	18.2	17.8	17.1
Voltage @ Max. Power V_m (V)	2.37	2.26	2.15	2.13

TJ30 Triple-Junction GaAs Solar Cell

Overview

TypeTriple-junction GaAs solar cell

SubstrateGe

Base MaterialGaInP / GaAs / Ge

AR-CoatingTiOx / Al₂O₃

Typical Size40 × 80 mm
67.6 × 138.1 mm
Other sizes can be customized

Thickness40 ± 10 μm
85 ± 20 μm
150 ± 20 μm
180 ± 20 μm

Mass/Area≤ 24 mg/cm²
≤ 50 mg/cm²
≤ 79 mg/cm²
≤ 95 mg/cm²

Temperature Coefficients (20℃–80℃)

Jsc Temp Coeff12.0 μA/cm²/℃

Voc Temp Coeff−5.6 mV/℃

Jm Temp Coeff9.0 μA/cm²/℃

Vm Temp Coeff−5.8 mV/℃

Typical Electrical Performance (AM0, 1353 W/m², 25℃)

30%BOL Efficiency

Typical Performance Data — TJ30

Parameter	BOL	1E14	5E14	1E15
Efficiency η_bare (%)	30.0	28.8	27.0	25.8
Short Circuit J_sc (mA/cm²)	17.5	17.4	16.8	16.3
Open Circuit V_oc (V)	2.75	2.64	2.58	2.53
Current @ Max. Power J_m (mA/cm²)	16.6	16.4	16.0	15.5
Voltage @ Max. Power V_m (V)	2.45	2.38	2.28	2.25

Triple-Junction GaAs Solar CICs -TJ32 CIC

Cover-glass Interconnect Cells — Structural Features

Structural Features

Substrate MaterialGe

Base MaterialGaInP / GaAs / Ge

AR CoatingTiOx / Al₂O₃

Coverglass Thickness120 μm
Other thickness / ITO coverglass available

Size40.1 × 80.1 mm
67.7 × 138.2 mm
Other sizes can be customized

Thickness300 ± 25 μm

Average Weight≤ 115 mg/cm²

Service OrbitLEO · MEO · GEO

Key Components

Bypass ProtectionSi Diode

Bypass Diode

Forward Voltage (+2.5A)	< 1.0 V
Reverse Current (−4.5V)	< 0.7 mA

Interconnector

Type	Pull Test @ 45°
Silver	> 1.6 N
Kovar (silver coated)	> 1.6 N

Electrical Parameters @ AM0

1353 W/m² · T = 25℃

Parameter	Value
Efficiency η_bare (%)	32
Open Circuit V_oc (V)	2.70
Short Circuit J_sc (mA/cm²)	18.8
Current @ Max. Power J_m (mA/cm²)	18.2
Voltage @ Max. Power V_m (V)	2.36

Triple-Junction GaAs Solar CICs -TJ30 CIC

Cover-glass Interconnect Cells — Structural Features

Structural Features

Substrate MaterialGe

Base MaterialGaInP / GaAs / Ge

AR CoatingTiOx / Al₂O₃

Coverglass Thickness120 μm
Other thickness / ITO coverglass available

Size40.1 × 80.1 mm
67.7 × 138.2 mm
Other sizes can be customized

Thickness300 ± 25 μm

Average Weight≤ 115 mg/cm²

Service OrbitLEO · MEO · GEO

Key Components

Bypass ProtectionSi Diode

Bypass Diode

Forward Voltage (+2.5A)	< 1.0 V
Reverse Current (−4.5V)	< 0.7 mA

Interconnector

Type	Pull Test @ 45°
Silver	> 1.6 N
Kovar (silver coated)	> 1.6 N

Electrical Parameters @ AM0

1353 W/m² · T = 25℃

Parameter	Value
Efficiency η_bare (%)	30
Open Circuit V_oc (V)	2.74
Short Circuit J_sc (mA/cm²)	17.4
Current @ Max. Power J_m (mA/cm²)	16.5
Voltage @ Max. Power V_m (V)	2.44

Thermal Properties

CIC Thermal Absorption & Temperature Gradient

CIC Absorption Coefficient

≤ 0.89Absorption Coefficient

CIC Emissivity Coefficient

0.92Emissivity Coefficient

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GaAs PV

TJ32 Triple-Junction GaAs Solar Cell

Overview

Temperature Coefficients (20℃–80℃)

TJ30 Triple-Junction GaAs Solar Cell

Overview

Temperature Coefficients (20℃–80℃)

Triple-Junction GaAs Solar CICs -TJ32 CIC

Structural Features

Key Components

Electrical Parameters @ AM0

Triple-Junction GaAs Solar CICs -TJ30 CIC

Structural Features

Key Components

Electrical Parameters @ AM0

Thermal Properties

CIC Absorption Coefficient

CIC Emissivity Coefficient

Triple-Junction GaAs Solar Cells & CICs

Ready to discuss your mission requirements?