Self-Assembled Dense Colloidal Cu2/Te Nanodisk Networks in P3HT Thin Films with Enhanced Photocurrent
Abstract
The integration of colloidal nanocrystals with polymers adds optoelectronicfunctionalities to flexible and mechanically robust organic films. Inparticular, self-assembled structures of nanocrystals in polymers can actas functional components enhancing, for instance, transport or opticalproperties of the hybrid material. This study presents Cu2Te hexagonalnanodisks that assemble into ribbons with a face-to-face configuration inpoly(3-hexylthiophene-2,5-diyl) through a controlled solvent evaporationprocess. The ribbons form weaving patterns that create 3D networksfully embedded in the thin polymer film at high nanodisk concentration.The photoresponse of these composite films measured in a layeredvertical geometry demonstrates increased photocurrent with increasingnanocrystal loading. This study attributes this behavior to the presenceof networks of Cu2Te nanodisks that form a bulk heterojunction with thesemiconducting polymer, which improves exciton dissociation and theoverall photoelectric response.
Autore Pugliese
Tutti gli autori
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Arciniegas M.P.; Di Stasio F.; Li H.; Altamura D.; De Trizio L.; Prato M.; Scarpellini A.; Moreels I.; Krahne R.; Manna L.
Titolo volume/Rivista
Advanced functional materials
Anno di pubblicazione
2016
ISSN
1616-301X
ISBN
Non Disponibile
Numero di citazioni Wos
Nessuna citazione
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Numero di citazioni Scopus
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Settori ERC
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Codici ASJC
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