Triple-Junction GaAs Solar CICs (40mm x 80mm)

Triple-Junction GaAs Solar CICs (40mm x 80mm)

MINDWAY adopt GaInP/GaAs/Ge substrate material and TiOₓ/Al₂O₃ anti-reflection coating, equipped with KFG120 coverglass and Si bypass diode, suitable for various orbital space applications including LEO, MEO and GEO.

Typical Performance Data：

◼ Orbit：LEO, MEO, GEO；

◼ Strong adaptability to space environment、long life and high reliability in all orbits；

◼ Al honeycomb substrates + CFRP layers、PCBs and Al substrates can be customized；

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Product Description
Specification
Product Advantage

Product Description

MINDWAY 40mm×80mm Triple-Junction GaAs Solar CICs (with precise dimensions of 40.1₀⁺⁰·⁰⁵mm × 80.1₀⁺⁰·⁰⁵mm) adopt GaInP/GaAs/Ge substrate material and TiOₓ/Al₂O₃ anti-reflection coating, equipped with KFG120 coverglass and Si bypass diode, featuring both high efficiency and high reliability, suitable for various orbital space applications including LEO, MEO and GEO. The core efficiency of the product reaches 30%-32%, with 1MeV electron irradiation resistance. The pull force of both silver and silver-plated Kovar interconnectors is more than 1.6N, with a cell thickness of 150±20μm, CICs thickness of 300±25μm, and average weight of ≤115 mg/cm², balancing lightweight and structural stability. It supports customization of various substrates including Al honeycomb+CFRP, PCBs and Al, with a maximum power-to-mass ratio of 125 W/kg, a delivery cycle of only 1 month, and a service life of 8 years for LEO orbit and 15 years for GEO orbit, making it a core space solar product with high adaptability and cost-effectiveness.

Typical Applications

Multi-orbit Satellite Core Power Supply

As the core power source for LEO/MEO/GEO satellites, it provides stable and continuous power output for satellite on-board systems, suitable for communication, remote sensing, navigation and other mainstream satellite platforms.

Small/Mini Satellite Special Power Solutions

40mm×80mm compact size (30.18cm² cell area) and lightweight design are perfectly adapted to the size and weight constraints of small satellites, cube satellites and micro satellites, with high integration compatibility.

High-reliability Space Missions

Ideal for military, aerospace exploration and other critical space missions with strict requirements for radiation resistance, thermal stability and long-term reliability, ensuring power system safety in extreme space environments.

Customized Satellite Solar Panel Assemblies

Serves as the core power unit of satellite solar panels, matching three types of substrates (Al honeycomb+CFRP/PCBs/Al) for customized assembly, applicable to high-performance, general-purpose and high-structural-strength satellite panel solutions.

Low-Altitude & Near-Space Aerospace Equipment

With excellent environmental adaptability and efficient power conversion, it can be extended to near-space airships, high-altitude drones and other aerospace equipment with high power and reliability requirements.

Specification

Parameter Category	Specific Parameters	Specifications/Details
Basic Material & Coating	Substrate Material	Ge
	Base Material	GaInP/GaAs/Ge
	Anti-Reflection (AR) Coating	TiOₓ/Al₂O₃
Mechanical & Dimension Data	CICs Size	40.1₀⁺⁰·⁰⁵mm × 80.1₀⁺⁰·⁰⁵mm
	Cell Area	30.18 cm²
	Cell Thickness	150±20μm
	CICs Thickness	300±25μm
	Interconnector Thickness	30μm
	Average Weight	≤115 mg/cm²
	Coverglass Type	KFG120 (custom thickness/ITO optional)
Coverglass Thickness	120μm
Bypass Protection	Si Diode
Applicable Orbit	Service Orbit	LEO, MEO, GEO
Typical Cell Performance (AM0:1353W/m², 25℃)	Bare Cell Efficiency (η bare) - 30%	30%
	Bare Cell Efficiency (η bare) - 32%	32%
	Open Circuit Voltage (Voc) - 30%	2.74 V
	Open Circuit Voltage (Voc) - 32%	2.70 V
	Short Circuit Current (Jsc) - 30%	17.4 mA/cm²
	Short Circuit Current (Jsc) - 32%	18.7 mA/cm²
	Max Power Current (Jm) - 30%	16.4 mA/cm²
	Max Power Current (Jm) - 32%	17.9 mA/cm²
	Max Power Voltage (Vm) - 30%	2.42 V
	Max Power Voltage (Vm) - 32%	2.37 V
Radiation Performance (1MeV Electron Irradiation, EOL/BOL Ratios)	Voc/Voc0 (@1E14 e/cm²) - 30%	0.96
	Voc/Voc0 (@1E14 e/cm²) - 32%	0.96
	Voc/Voc0 (@5E14 e/cm²) - 30%	0.94
	Voc/Voc0 (@5E14 e/cm²) - 32%	0.92
	Voc/Voc0 (@1E15 e/cm²) - 30%	0.92
	Voc/Voc0 (@1E15 e/cm²) - 32%	0.90
	Isc/Isc0 (@1E14 e/cm²) - 30%	0.99
	Isc/Isc0 (@1E14 e/cm²) - 32%	0.99
	Isc/Isc0 (@5E14 e/cm²) - 30%	0.96
	Isc/Isc0 (@5E14 e/cm²) - 32%	0.97
	Isc/Isc0 (@1E15 e/cm²) - 30%	0.93
	Isc/Isc0 (@1E15 e/cm²) - 32%	0.94
Pmp/Pmp0 (@1E14 e/cm²) - 30%	0.96
Pmp/Pmp0 (@1E14 e/cm²) - 32%	0.95
Pmp/Pmp0 (@5E14 e/cm²) - 30%	0.90
Pmp/Pmp0 (@5E14 e/cm²) - 32%	0.89
Pmp/Pmp0 (@1E15 e/cm²) - 30%	0.86
Pmp/Pmp0 (@1E15 e/cm²) - 32%	0.84
Bypass Diode Performance	Forward Voltage (@+2.5A)	1.0 V
Bypass Diode Performance	Reverse Current (@-4.5V)	<0.7 mA
Interconnector Performance	Silver Interconnector Pull Force (45° Single-Point)	>1.6N
Interconnector Performance	Silver-Coated Kovar Interconnector Pull Force (45° Single-Point)	>1.6N
Thermal Performance	Light Absorption Coefficient	≤0.89
	Temperature Coefficient Calibration Range	20℃~80℃
	Short Circuit Jsc Temp Coeff (30%)	12.0 μA/cm²/℃
	Short Circuit Jsc Temp Coeff (32%)	11.0 μA/cm²/℃
	Open Circuit Voc Temp Coeff (30%)	-5.6 mV/℃
	Open Circuit Voc Temp Coeff (32%)	-6.0 mV/℃
	Max Power Jm Temp Coeff (30%)	9.0 μA/cm²/℃
	Max Power Jm Temp Coeff (32%)	10.0 μA/cm²/℃
Max Power Vm Temp Coeff (30%)	-5.8 mV/℃
Max Power Vm Temp Coeff (32%)	-6.3 mV/℃
Matching Solar Panel - Substrate Customization	Substrate Types	Al honeycomb+CFRP, PCBs, Al
	Power per Mass (Al honeycomb+CFRP)	88~125 W/kg
	Power per Mass (PCBs)	65 W/kg
	Power per Mass (Al)	38 W/kg
	Mass per Area (Al honeycomb+CFRP)	2.0~3.2 kg/m²
	Mass per Area (PCBs)	3.5 kg/m²
	Mass per Area (Al)	7.3 kg/m²
Matching Solar Panel - Reliability & Delivery	Service Life (LEO)	8 years
	Service Life (GEO)	15 years
	Environmental Adaptability	Strong space environment adaptability, high reliability for all orbits
	Delivery Cycle	1 month

Product Advantage

1

1. High Efficiency Dual-Grade Performance
AM0 test conditions (1353W/m², 25℃) deliver 30%/32% bare cell conversion efficiency, with excellent electrical performance including open circuit voltage up to 2.74V and short circuit current up to 18.7mA/cm², meeting diverse power demand scenarios.
2

2. Superior Radiation Resistance
Optimized for space irradiation environments, it maintains high EOL/BOL performance ratios under 1MeV electron irradiation: Pmp/Pmp0 remains 0.86/0.84 even at 1E15 e/cm² fluence, ensuring stable operation in high-radiation orbital space.
3

Lightweight & Robust Mechanical Structure
Ultra-light design with average weight ≤115mg/cm²; 45° single-point pull force of silver and silver-coated Kovar interconnectors >1.6N, CICs thickness 300±25μm with Si diode bypass protection, balancing light weight and structural reliability.
4

Excellent Thermal Stability
Low light absorption coefficient (≤0.89), calibrated temperature coefficient for key electrical parameters in 20℃~80℃ range, with dedicated temperature gradients for 30%/32% efficiency grades, adapting to extreme orbital temperature fluctuations.
5

High Customization Flexibility
Support customization of KFG120 coverglass (different thickness/ITO optional); matching satellite solar panels offer Al honeycomb+CFRP, PCBs, Al substrate customization, meeting personalized integration requirements.
6

High Adaptability & Reliable Service Life
Compatible with LEO/MEO/GEO multi-orbit applications, with 8-year service life for LEO and 15-year for GEO; strong space environment adaptability, matching the full life cycle of satellite missions.
7

Efficient Delivery & Mature Supporting
1-month fast delivery cycle for matching solar panels; power-to-mass ratio up to 88~125W/kg for Al honeycomb+CFRP substrate, providing high-performance and cost-effective space power solutions.