Enhanced charge extraction in inverted hybrid photovoltaic cells assisted by graphene nanoflakes

dc.contributor國立臺灣師範大學化學系zh_tw
dc.contributor.authorY.-M. Sungen_US
dc.contributor.authorF.-C. Hsuen_US
dc.contributor.authorD.-Y. Wangen_US
dc.contributor.authorI.-S. Wangen_US
dc.contributor.authorChia-Chun Chenen_US
dc.contributor.authorH.-C. Liaoen_US
dc.contributor.authorW.-F. Suen_US
dc.contributor.authorY.-F. Chenen_US
dc.date.accessioned2014-12-02T06:41:37Z
dc.date.available2014-12-02T06:41:37Z
dc.date.issued2011-11-21zh_TW
dc.description.abstractWe use graphene nanoflakes (GNFs) to greatly enhance the charge extraction out of a photoactive blend in inverted hybrid poly(3-hexylthiophene):(6,6)-phenyl C61butyric acid methyl ester (P3HT:PCBM)/ZnO-nanorod photovoltaic cells. Instead of a continuous film, solution processed GNFs with dimensions less than 200 nm � 200 nm are homogeneously scattered on top of the well-aligned ZnO-nanorods. Those GNFs play key roles, they serve as an electron drain to collect electron flow out to ZnO-nanorods, enhance the carrier mobility of the device and promote holes to drift toward the surface in contact with the cathode. As a result, there is a large enhancement in photocurrent and photovoltage of 35% and 27%, respectively, leading to an improved cell efficiency by up to about 100%.en_US
dc.description.urihttp://pubs.rsc.org/en/content/articlepdf/2011/jm/c1jm12571kzh_TW
dc.identifierntnulib_tp_C0301_01_079zh_TW
dc.identifier.issn0959-9428zh_TW
dc.identifier.urihttp://rportal.lib.ntnu.edu.tw/handle/20.500.12235/42363
dc.languageen_USzh_TW
dc.publisherRoyal Society of Chemistryen_US
dc.relationJournal of Materials Chemistry, 21(43), 17462-17467.en_US
dc.relation.urihttp://dx.doi.org/10.1039/C1JM12571Kzh_TW
dc.titleEnhanced charge extraction in inverted hybrid photovoltaic cells assisted by graphene nanoflakesen_US

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