Green Tea Program


Structural Characterization Facilities

Optical Spectroscopy

Optical characterization of the electronic transitions of materials by absorption and emission techniques in the ultraviolet, visible, and near infrared regions


  • Perkin-Elmer Lambda 9 and Varian Cary 17 spectrophotometers; SLM 8000C emission spectrometer;
  • Pulsed and cw Nd:YAG lasers(Quantel model Y660A and Quantronix model 114); argon-ion and dye lasers; other lasers spanning the UV to near infrared wavelengths
  • Infrared and raman Spectroscopy
  • Quantitative/qualitative analysis of materials for determining bond types/molecular structure. Visible and near IR sources are available for Raman excitation
  • Perkin-Elmer 1760 FTIR; FT-Raman is accomplished with a Nd:YAG laser and a Raman sample compartment attached to the FTIR instrument
  • Spex triplemate monochromator, Innova 70 Laser, EGG PARC, OMA III Detector; Spectra physics 10 mW He-Ne laser 

Luminescence Spectrometry

  • Luminescence spectrometer capable of measuring fluorescence, phosphorescence, chemiluminescence and bioluminescence
  • Circular dichroism polarimetry
  • State-of-the-art NMR facility
  • 200, 250 & 500 MHz:  single and multidimensional characterization of materials in solution
  • 300 MHz spectrometer exclusive for characterization of solids
  • Gel Permeation Chromatography (GPC)
  • Waters GPC with R.I and UV detectors that can operate at room or higher temperatures
  • Dynamic and static light scattering equipments for particle size and molecular weight measurements

Other Facilities

  • Electrochemistry
  • Princeton Applied Research Model 263 Potentiostat, Voltalab Potentiostat for redox studies on materials

Thermal analysis Laboratory 

  • Instruments for complete thermal analysis (capable of operating from liquid nitrogen temperature to about 500°C)
  • Differential Scanning Calorimetry (DSC)
  • Thermogravimetric Analyzer (TGA)
  • Thermomechanical Analyzer (TMA)           
  • Dynamic Mechanical Analyzer (DMA)
  • Dielectric Analyzer (DEA)
  • Differential Photocalorimeter (DPC)

Morphological Characterization Facilities

  • Scanning probe microscopy (sub-nanometer resolution images of surfaces   including biological molecules)
  • Electrostatic force and scanning tunneling microscopy
  • Near-field scanning optical microscopy
  • Scanning and transmission electron microscopy

Surface Analysis

  • X-Ray Photoelectron Spectroscopy (XPS)
  • Ultraviolet photoelectron spectroscopy
  • Secondary–Ion Mass spectrometry (SIMS)

Resources at Prof. Braunhut’s Laboratories

  • Over 1,500 square feet of  newly renovated laboratory space (2006)
  • Biochemistry lab and three exclusive positive pressure tissue culture labs
  • 4 X 4 ft. laminar flow hoods and one, 2 foot fume hood.
  • 4 CO2 incubators
  • Nikon inverted scope
  • Mettler balances, centrifuges and pH meters
  • Coulter counters, electrophoretic equipment and power packs.
  • Radioactive use area with Geiger counter, shields and PE thermal cycler.
  • Water baths, 2 inverted scopes, 2 coulter counter, -70 and -20 freezer and four refrigerators
  • Facilities in collaboration with the Biology Department
  • Fully staffed animal facility to house mice, rats and hamsters (USDA regulated)
  • Animal facility is equipped with surgical rooms, sterilizing facilities scheduled light-dark room for mice, isolators for nude mice
  • Powerful Mac computer and PCs equipped with densitometry software
  • Instron tensimetry measurement devices
  • Autoclaves and dissecting microscopes equipped with camera attachments
  • Beckman epics XL flow cytometer
  • Applied Biosystems 1700 chemiluminescent microarray analyzer
  • Leica TCS SP2 AOBS confocal microscope
  • Picker Gemini 320KV Industrial x-ray unit