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Ternary hybrid systems of P3HT-CdSe-WS2 nanotubes for photovoltaic applications

TitoloTernary hybrid systems of P3HT-CdSe-WS2 nanotubes for photovoltaic applications
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2014
AutoriBruno, A., Borriello Carmela, Haque S.A., Minarini Carla, and Di Luccio Tiziana
RivistaPhysical Chemistry Chemical Physics
Volume16
Paginazione17998-18003
ISSN14639076
Abstract

Hybrid heterojunctions of conjugated polymers and inorganic nanomaterials are a promising combination for obtaining high performance solar cells (SC). In this work we have explored new possible uses of the WS2 nanotubes (NTs) both as the only acceptor material blended with a polymer and in ternary systems mixed with a polymer and quantum dots (QDs). In particular we have spectroscopically investigated binary blends of poly(3-hexylthiophene) (P3HT) and WS2 NTs, P3HT and CdSe QDs, and ternary blends of P3HT, CdSe QDs and WS2 NTs. We report fluorescence quenching effects of the QD signal in the P3HT-CdSe-WS2 system with the increase of NT concentration. Static and time-resolved fluorescence studies reveal efficient resonant energy transfer from the QDs to the NTs upon photoexcitation. The evidence of energetic interaction between WS2 NTs and QDs opens new fields of application of WS2 NTs and holds very promising potential for improving charge transfer phenomena in the active layer of hybrid solar cells. This journal is © the Partner Organisations 2014.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84905492837&doi=10.1039%2fc4cp00594e&partnerID=40&md5=02f703d3cd99edef7addb5e0452cde09
DOI10.1039/c4cp00594e
Citation KeyBruno201417998