Electronic, magnetic & optical materials · Semiconductors
CIGS photovoltaic absorber
CIGS photovoltaic absorber is a functional-material reference for electronic, magnetic, dielectric or optical selection. Device performance depends strongly on purity, defects, orientation and processing.
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01
Overview
- Material class
- Electronic, magnetic & optical materials
- Category
- Semiconductors
- Family
- CIGS semiconductor
- Product forms
- Wafer/crystal, Powder/ceramic, Thin film
Composition
| Constituent | Min | Max | Typical | Note |
|---|---|---|---|---|
| Formula / identity | Cu(In,Ga)Se2 | Doping and stoichiometry are application dependent |
02
Properties and conditions
Engineering properties
| Property | Value | Unit | Condition |
|---|---|---|---|
| Density | 5.5–5.8 | g/cm³ | Representative generic grade; verify supplier, condition and test method |
| Band gap | ~1.0–1.7 | eV | Representative generic grade; verify supplier, condition and test method |
| Thermal conductivity | Composition dependent | W/m·K | Representative generic grade; verify supplier, condition and test method |
| Absorption coefficient | High in visible spectrum | — | Representative generic grade; verify supplier, condition and test method |
| Processing temperature | Thin-film route dependent | °C | Representative generic grade; verify supplier, condition and test method |
| Electrical resistivity | Doping dependent | Ω·m | Representative generic grade; verify supplier, condition and test method |
Conditions
Undoped or representative functional grade
Condition carried forward from the Phase 1 record.
03
Processing and use
Processing
- Functional properties may vary by orders of magnitude with doping, grain boundaries, crystallographic orientation and defect chemistry.
Applications
- Power or microelectronics
- Sensors and actuators
- Optical or magnetic components
Selection considerations
- Do not combine bulk, thin-film and single-crystal values without identifying form and measurement direction.
04
Standards and related materials
Standards and designations
No standard designation is listed.
05
Sources and context
Sources
- Ioffe Institute — semiconductor material parametersManufacturer or public reference
Confirm the applicable specification, product form and condition before using values for design or procurement.
Supply and sustainability
High-purity and device-grade forms have specialized suppliers and qualification requirements.
Critical-element content, wafer yield, recovery and device lifetime are central to material impact.
Strategic context
Supports electronics, sensing, power conversion, photonics and high-field devices.