Hybrid NanoStructure Research Lab in Physics, Korea Univ.

Experimental Instruments

Keithley 237 High Voltage Source-Measure Unit
	This applies current (voltage) and measures voltage (current) to obtain DC conductivity.

Keithley 2000 Digital Multimeter
	This measures voltage or current.

Keithley 224 Programmable Current Source
	This applies current to obtain DC conductivity.

Keithley 182 Sensitive Voltmeter
	This measures nanovoltage to obtain thermoelectric power.

Janis Closed Cycle Refrigerator
	This makes temperature change from room temperature to 10 K through repetitive compression and expansion of He gas to obtain temperature dependences of DC conductivity and thermoelectric power.

Lakeshore DRC91-CA Temperature Controller
	This measures temperature and keeps temperature constant by using built-in heater.

Quadtech 7600 Precision RLC Meter
	This applies AC voltage or current in the frequency range of 10 Hz to 2 MHz, measures impedance to obtain AC dielectric constant and conductivity, and converts impedance to resistance, inductance, and capacitance.

Deltadesign 9059 Temperature Chamber
	This makes temperature change from room temperature to 78 K by using liquid nitrogen (LN2) to obtain temperature dependence of AC dielectric constant and conductivity.

Lakeshore 330 Autotuning Temperature Controller
	This measures temperature and keeps temperature constant by using bulit-in heater, although the function of heater is less stable compared to Lakeshore DRC91-CA.

Tektronix TDS3032 Digital Phosphor Oscilloscope
	This is used for various purposes as a digital oscilloscope with storage function.

Laurell WS-200-4T2 Spin Coater
	This makes the luminescent layer with thickness of the order of 100 nm to fabricate organic LED devices.

Branson 2210 Sonicator
	This is mainly used to clean ITO glasses to fabricate organic LED devices.

Fisher Isotemp 281A Vacuum Oven
	Vacuum range : ~ 1×10-3 Torr Temperature range : ~ 350 ℃

Vacuum Deposition System
	This is mainly used to make electrodes on the surface of samples through vacuum deposition of metals by thermal evaporation.

Keithley 248 High Voltage Supply
	This applies high voltage needed in various experiments.

Hewlett-Packard 8719ES S-parameter Vector Network Analyzer
	This measures S-parameters in the frequency range of 50 MHz to 13.5 GHz to obtain electromagnetic interference shielding efficiency and to evaluate electric permittivity and magnetic permeability of the materials.

Hewlett-Packard 83017A Microwave System Amplifier
	This is used for high shielding efficiency measurement for electromagnetic interference. Frequency Range : 500 MHz ~ 26.5 GHz System Dynamic Range : 40 dB

Hewlett-Packard 87421A Power Supply
	This is a power supply for the microwave system amplifier.

Hewlett-Packard 85052D 3.5mm Calibration Kit
	This is a full 2-port calibration kit which is used for more exact measurement.

Electro-Metrics 2107A SE Test Fixture
	This is a coaxial line holder of the flange type which is used for the electromagnetic interference shielding efficiency measurement of planar materials. Frequency Range : 50 MHz ~ 1.5 GHz

2-Ports Flanged Coaxial Line Holder
	This is also a coaxial line holder of the flange type which is used for the electromagnetic interference shielding efficiency measurement of planar materials. This has more wide frequency range than the Electro-Metrics 2107A SE Test Fixture. Frequency Range : 50 MHz ~ 19 GHz

Maury Microwave 2653S10 10cm Beadless Airline
	This is a coaxial line holder used for the microwave response measurement of washer type materials. This is applied for the electromagnectic interference, permeablility, permittivity etc. Frequency Range : 50 MHz ~ 19 GHz

Maury Microwave X101A6 X-Band Waveguide
	This is a X-band wavegide used for the microwave response measurement. Frequency Range : 8 GHz ~ 12 GHz