Broadband Dielectric Spectroscopy (BDS)

Advanced characterization of molecular dynamics and charge transport using a Novocontrol Alpha AN Analyzer with Quatro Cryo-system.

• Frequency Range: 3 µHz to 20 MHz, with Keysight E4991B RF extension up to 3 GHz.
• Temperature Range: Cryogenic (-160°C) to High Temperature (+1200°C) with oven option.
• Impedance Range: 0.01 Ω to 10¹⁴ Ω, for conductors to insulators.
• Precision: Loss tangent (tan δ) accuracy better than 10^-4.

UV-VIS Spectroscopy

High-accuracy absorption and transmission analysis using a Motras Scientific MS UV Plus double-beam system.

• Wavelength Range: 180 nm to 1100 nm.
• Optics: Double-beam, Czerny-Turner mounting with a 1200 lines/mm holographic grating.
• Detection: Dual Silicon Photodiode detectors with ±0.05 nm accuracy.
• Modules: Scan Spectrum, Quantization, Kinetics, and DNA/Protein analysis.

Ferroelectric (PE Loop) Testing

Dual-system facility for comprehensive ferroelectric characterization from bulk to thin films.

• High Voltage (Bulk): Radiant Technologies Precision Multiferroic II, expandable to 10 kV.
• Thin Film System: aixACCT Systems Easy Check FE Loop Tracer, optimized for thin-film-on-substrate samples.
• Capabilities: Hysteresis, Leakage, PUND, Fatigue, I-V, and C-V measurements.

Advanced Transport Measurement

Full-spectrum characterization using dedicated modules, automated with our PICA software.

• Low-Resistance: Keithley 6221 / 2182A using Delta Mode to measure from 10 nΩ to 100 MΩ.
• Mid-Resistance: Keithley 2400 SMU in a 4-wire setup for 1 Ω to 200 MΩ.
• High-Resistance: Keithley 6517B Electrometer for ultra-high resistance up to 10¹⁵ Ω.

Pyroelectric Measurement

Measures the pyroelectric coefficient (p) by detecting current during a precise, linear temperature ramp.

• Core Equation: I = p ⋅ A ⋅ (dT/dt).
• Key Instruments: Keithley 6517B Electrometer for femtoampere-level current detection.
• Precision Control: LakeShore 340 Controller for stable ramps (80 K - 340 K).

Advanced Dielectric Measurements

Unique capabilities to probe coupling phenomena in advanced materials.

• Magnetodielectric Studies: LCR Meter (Keysight E4980A) combined with a 14 Tesla PPMS to measure dielectric properties as a function of T and B field.
• Laser-Assisted Studies: Integrates a laser source with dielectric, transport, and pyroelectric systems to characterize photoconductivity and photo-ferroelectric effects.

Environment Control

Pfeiffer HiCube Vacuum Station & LakeShore 350/340 Controllers for temperature control (5-370K).

High-Field Studies

Access to a Physical Property Measurement System (PPMS) for studies up to 14T.