And how is it going to affect the exciton formation and recombination processes? Please comment on this.
I have no distinct knowledge of the topic, but this paper seems to investigate exactly your problem. Good luck!
http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.83.4654
Concerning the effect of the phonons on the exciton recombination process, this clearly depends on the QD type.
For exemple, in InGaAs semiconductor QDs, the exciton recombination is not coupled to the matrix phonons, which leads to transform limited emission linewidth (See Kuhlmann et al. Nat Phys 2013 for example).
In CdSe/ZnS QDs however, the exciton can be coupled to acoustic and optical phonons of the QD materials, which limits its coherence time: the emission consists of a zero phonon line (ZPL) and phonon assisted replica, shifted in energy by phonon energy (See Louyer et al. App Phys Lett 2010 for example).
So, I would say that there is no general answer to whether phonons affect the exciton recombination or not, it depends on the system studied.
The exciting laser source can't provide the exciton as well as lattice in different temperatures, until that there will be a problem. since i am very young out of curiosity i am telling. If not so please direct me.
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