Facilities

Micro Raman Spectrometer Coupled with Four Probe Surface Probe Microscopy

Raman Spectrometer

    • Micro-Raman Spectrometer (Renishaw inVia)
    • Excitations 325, 488, 514.5 and 785 nm
    • Detection Limit 200-1700 nm Raman Imaging for 100 nm resolution (Point Source : Slow Scan) and 600 nm resolution (Line Source : Fast Scan)
    • Temperature 77-600 K on Raman Stage (LN2 Cooled)

Surface Probe Microscopy (SPM)

    • Four Probe with Independent Tuning Fork Feed Back ( MV4000, Nanonics, Israel)
    • One probe with Beam Bounce Feed Back
    • Max Scanning Range 150x150x150 micrometer
    • Tip Enhance Raman Spectroscopy (TERS)
    • Near-Field Scanning Optical Microscopy with Single Photon Detector
    • Conductance Mapping, Kelvin Probe Microscopy, Magnetic Force Microscopy
    • Thermal Scanning
    • Nanoindentation
    • Nano-delivery (Gas, Liquid)
    • 1E-7 mbar (ion pump and Turbo pump)
    • Temperature -25-300 oC on SPM Stage (Thermoelectric Cooled)

CVD Chamber for Vapour-Liquid-Solid Growth

    • MFC controlled Gas Injection Port.
    • Pressure : 0.001-1200 mBar (Strain Gauge Sensor) Max.
    • Temperature 1473 K

Three Zone Tube Furnace

    • (80 O.D x 74 ID. x 1400 L) mm fused quartz tube;
    • Max. Temperature 1475 K;
    • Three zones: (660mm in total), each zone 220mm heating length

Thermal Evaporation Unit

    • Resistive Heating
    • Diffusion pump backed by rotary pump
    • Digital Thickness Monitor
    • Chamber Vacuum 1 x 10-6

Double Barrier LB trough

Used for monolayer and multilayer deposition of organic tailored thin films for microelectronics, sensor applications.

Exposure Facility for Gas Sensing (EFGS)

    • Resistance based Gas Sensor Studies
    • Indigenously designed
    • Sensors in various forms can be tested (nanostructures, thin films, thick films, devices etc)
    • Testing upto 600 oC in dynamic mode
    • MFC based gas switching facility controlled through PLC circuitry
    • Upto 6 gas flows can be flown simultaneously with completely electro-pneumatic opening/closing of valves
    • Automated data acquisition (resistance, RGA profiles)

Exposure Facility for Chemical Sensing

    • Resistance/capacitive based Chemical Sensor Studies
    • Indigenous designed
    • Sensors in various forms can be tested (nanostructures, thin films, thick films, devices etc)
    • Testing upto 400 oC in static mode

Micro Probe Station for Optoelectronic Measurements