Sunish Sugunan
- Courses1
- Reviews1
- School: University of Saskatchewan
- Campus:
- Department: Chemistry
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Location:
Saskatoon, SK - Dates at University of Saskatchewan: December 2010 - December 2010
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Biography
University of Saskatchewan - Chemistry
Experience
University of Saskatchewan
PhD Student
Spectroscopy and photophysics of molecules relevant to dye-sensitized solar cells.
Instrumental experience:
Hands on working experience on picosecond Time Correlated Single Photon Counting, nanosecond laser flash photolysis setup, steady state absorption spectrophotometer and spectrofluorimeters and ellipsometer. Familiar with working on a homemade single molecule fluorescence microscopy setup, confocal fluorescence microscope system, picosecond fluorescence upconversion setup, HPLC, GCMS, GC, atomic absorption and atomic emission spectrophotometers, capillary electrophoresis and linear scan stripping voltammetry.
Education
Mahatma Gandhi University
MSc
Chemistry
Publications
Determination of oxygen permeabilities in thin polymer films using quenching of upconverted fluorescence in porphyrins
Canadiaan Journal of Chemistry, NRC research press, Canada
Proof-of-principle was demonstrated for a method of measuring the oxygen diffusion properties of thin polymer films based on quenching of the delayed upconverted fluorescence from a metalloporphyrin. The method developed was simple, highly sensitive and efficient for sensing oxygen diffusion through polymer membranes which has applications in food wrappers, protective barriers for air sensitive materials, pressure sensitive paints etc.
Determination of oxygen permeabilities in thin polymer films using quenching of upconverted fluorescence in porphyrins
Canadiaan Journal of Chemistry, NRC research press, Canada
Proof-of-principle was demonstrated for a method of measuring the oxygen diffusion properties of thin polymer films based on quenching of the delayed upconverted fluorescence from a metalloporphyrin. The method developed was simple, highly sensitive and efficient for sensing oxygen diffusion through polymer membranes which has applications in food wrappers, protective barriers for air sensitive materials, pressure sensitive paints etc.
Photophysics of Untethered ZnTPP–Fullerene Complexes in Solution
Journal of Physical Chemistry A, American Chemical Society
The spectroscopy and dynamic behavior of the self-assembled, electronically excited zinc tetraphenylporphyrin (ZnTPP) plus fullerene (C60) model system in solution has been examined using steady state fluorescence quenching, nanosecond time-correlated single photon counting, picosecond fluorescence upconversion, and picosecond transient absorption methods. The results are of of critical importance in the successful operation of optoelectronic switches, devices for artificial photo-synthesis and organic solar photovoltaic cells.
Determination of oxygen permeabilities in thin polymer films using quenching of upconverted fluorescence in porphyrins
Canadiaan Journal of Chemistry, NRC research press, Canada
Proof-of-principle was demonstrated for a method of measuring the oxygen diffusion properties of thin polymer films based on quenching of the delayed upconverted fluorescence from a metalloporphyrin. The method developed was simple, highly sensitive and efficient for sensing oxygen diffusion through polymer membranes which has applications in food wrappers, protective barriers for air sensitive materials, pressure sensitive paints etc.
Photophysics of Untethered ZnTPP–Fullerene Complexes in Solution
Journal of Physical Chemistry A, American Chemical Society
The spectroscopy and dynamic behavior of the self-assembled, electronically excited zinc tetraphenylporphyrin (ZnTPP) plus fullerene (C60) model system in solution has been examined using steady state fluorescence quenching, nanosecond time-correlated single photon counting, picosecond fluorescence upconversion, and picosecond transient absorption methods. The results are of of critical importance in the successful operation of optoelectronic switches, devices for artificial photo-synthesis and organic solar photovoltaic cells.
Mechanisms of Low-Power Noncoherent Photon Upconversion in Metalloporphyrin−Organic Blue Emitter Systems in Solution
Journal of Physical Chemistry A, American Chemical Society
The mechanisms of noncoherent photon upconversion (converting the lower energy end of the solar spectrum to the higher energy region) in solution have been investigated for two model systems. The results are proven to be highly important in developing highly efficient solar cells.
