1. Louis McNamara Chemistry and Biochemistry University of Mississippi
SPECTROSCOPIC INVESTIGATION OF THE EFFECTS OF ENVIRONMENT ON NEWLY DEVELOPED EMISSIVE MATERIALS
Louis McNamara
Chemistry and Biochemistry
University of Mississippi

2. Compounds
ccc-pincer complex
Poly-PDIB-SSQ nanostructures
DSC’s

3. Set up for changes in environment
Pulse valve
Gas Inlet
Pressure Gauge
Slide (w/ sample)
Fluorescence
Valve
Objective
Light Source
Mirror
Mini-Turbo
Pump
CCD Camera

4. Set up for changes in environment
Pulse valve

5. Novel emissive pincer complexes
Hollis group (Miss. State)
Tunable and stable emissive materials in technologies such as lasers and displays
Complexes usually contain either Ni, Pd or Pt
Ln = Cl, Br, I or CO

6. Techniques and properties
Interested in tracking changes in PL quantum yield, PL lifetime, absorption, emission and photostability
Probe solids, liquids and pincer complexes with varying metals/ligands and in different atmospheres

7. Techniques and properties
Interested in tracking changes in PL quantum yield, PL lifetime, absorption, emission and photostability
Probe solids, liquids and pincer complexes with varying metals/ligands and in different atmospheres

8. Techniques and properties
Lifetimes tend to be longer and absorbance tends to be more red in solid state then when dissolved in methanol or DCM

9. Polymer Nanoarrays
Look at how aggregation affects the photophysics of semiconducting nanoarrays
Samples were spin coated onto slides after being dissolved in solutions of 1:0, 1:1, and 0:1 ratios methanol:chloroform

10. Polymer Nanoarrays
Look at how aggregation affects the photophysics of semiconducting nanoarrays
Samples were spin coated onto slides after being dissolved in solutions of 1:0, 1:1, and 0:1 ratios methanol:chloroform

11. Polymer Nanoarrays
Look at how aggregation affects the photophysics of semiconducting nanoarrays
Samples were spin coated onto slides after being dissolved in solutions of 1:0, 1:1, and 0:1 ratios methanol:chloroform

12. Sensitizer dyes for solar cells
The photophysics of sensitizer dyes will be examined in collaboration with the Delcamp
Fluorescence lifetimes are of primary interest
Look at lifetimes of dyes in solution and on TiO2 in order to determine the injection efficiencies

13. Acknowledgements