Home R & D Chem Investigating Photophysical Processes in Rubrene-DBP Films

Investigating Photophysical Processes in Rubrene-DBP Films

Investigating Photophysical Processes in Rubrene-DBP Films

🔍 This study explores the photophysical processes in films composed of the Rubrene-DBP system. The focus is on the rise time of the DBP emission signal, which is calculated using specific analysis software and mathematical equations.

Diving into the world of Rubrene-DBP films! 🎬 Learn how researchers investigated photophysical behaviors, employing UV-visible spectra, time-resolved emission data, and femtosecond transient absorption. Unraveling rise times and more! 🔬🌟 #Photophysics #Research”

📊 Rubrene (97%) and DBP solutions were prepared in toluene.

📊 Films were created by spin coating Rubrene-DBP mixture on ZrO2 coated FTO substrate.

📊 DBP concentration varied from 0% to 1.5% in mole fraction in toluene.

📊 Characterization methods included UV-visible absorption and emission spectra analysis.

📊 Time-resolved emission spectra (TRES) were monitored through time-correlated single-photon counting (TCSPC).

📊 Femtosecond transient absorption measurements utilized a laser system with pump and probe beams.

📊 The rise time of DBP emission signal was calculated using specialized analysis software and an exciplex function.

In this research, the focus was on understanding the photophysical behaviors of films composed of the Rubrene-DBP system. These films were prepared through spin coating a mixture of Rubrene and DBP solutions in toluene onto a substrate coated with ZrO2. Variations in DBP concentration were introduced, and the resulting films were characterized through various spectroscopic techniques, including UV-visible absorption and emission spectra analysis. Time-resolved emission spectra (TRES) were monitored using time-correlated single-photon counting (TCSPC) techniques. The study also employed femtosecond transient absorption measurements, utilizing a laser system with both pump and probe beams. Of particular interest was the rise time of the DBP emission signal, which was calculated using specialized software and an exciplex function, shedding light on the temporal behavior of the photophysical processes.

Directing Singlet Excited Energy Flow in Rubrene-Perylene Dye (DBP) Films

  • Jishnudas Chakkamalayath and Prashant V. Kamat*
  • Film Preparation: Rubrene-DBP solution
  • Variations Explored: DBP concentration changes
  • Spectral Characterization: UV-visible, emission spectra
  • Temporal Insights: Rise time calculations
  • Advanced Techniques: TCSPC, femtosecond absorption

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