High photoluminescence quenching of poly(3-hexylthiophene) (P3HT) is observed on preparing composites with multiwalled carbon nanotubes (MWCNT) and single walled carbon nanotubes (SWCNT) even in the presence of very minor quantities of carbon nanotubes. With the experimental findings, that include results from the UV–vis spectroscopy, photoluminescence spectroscopy, and time-resolved photoluminescence spectroscopy the nature of this photoluminescence quenching mechanism has been studied and found to be static quenching. The photoluminescence quenching of P3HT by MWCNT is more efficient in comparison to SWCNT. The nature of the photoluminescence quenching has been confirmed as static quenching without any dynamic contribution.
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Goutam et al. (2012) studied this question.
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