ETD

Archivio digitale delle tesi discusse presso l'Università di Pisa

Tesi etd-06202019-152508


Tipo di tesi
Tesi di laurea magistrale
Autore
VALENTINI, SIMONE
Indirizzo email
sin.val91@hotmail.it
URN
etd-06202019-152508
Titolo
Optical study and characterization of new organic molecoules for solar collectors and sensing applications
Dipartimento
CHIMICA E CHIMICA INDUSTRIALE
Corso di studi
CHIMICA INDUSTRIALE
Relatori
relatore Prof. Pucci, Andrea
controrelatore Dott. Lessi, Marco
Parole chiave
  • LSC
  • cation sensor
  • dye sensor
Data inizio appello
22/07/2019
Consultabilità
Non consultabile
Data di rilascio
22/07/2089
Riassunto
So, when the molecule finally arrives at the lowest vibrational level of the S1 electronic state (after only 10-12 s) fluorescence is emitted. Fluorescence usually takes place in 10-10 to 10-8 s, depending on many factors as the environment of the chromophore, the presence of dynamic quenching, or energy transfer. If the molecule fluoresces, it returns to one of many different higher vibrational levels of the S0 state. It is worthy to highlight that photons emitted by fluorescence have a lower energy than the initial excitation photons due to the competition at different energy levels between radiative and non-radiative decay pathways during electron descent ot the ground state as previously discussed. This energy gap is called the Stokes shift.
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