Intraphase microstructure–understanding the impact on organic solar cell performance

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dc.contributor.authorScholes, FHen_AU
dc.contributor.authorEhlig, Ten_AU
dc.contributor.authorJames, Men_AU
dc.contributor.authorLee, KHen_AU
dc.contributor.authorDuffy, Nen_AU
dc.contributor.authorScully, ADen_AU
dc.contributor.authorSingh, TBen_AU
dc.contributor.authorWinzenberg, KNen_AU
dc.contributor.authorKemppinen, Pen_AU
dc.contributor.authorWatkins, SEen_AU
dc.date.accessioned2014-06-26T00:32:15Zen_AU
dc.date.available2014-06-26T00:32:15Zen_AU
dc.date.issued2013-12-05en_AU
dc.date.statistics2014-06-26en_AU
dc.description.abstractA comprehensive study of the effect of intraphase microstructure on organic photovoltaic (OPV) device performance is undertaken. Utilizing a bilayer device architecture, a small molecule donor (TIPS-DBC) is deposited by both spin-coating and by thermal evaporation in vacuum. The devices are then completed by thermal evaporation of C60, an exciton blocking layer and the cathode. This bilayer approach enables a direct comparison of device performance for donor layers in which the same material exhibits subtle differences in microstructure. The electrical performance is shown to differ considerably for the two devices. The bulk and interfacial properties of the donor layers are compared by examination with photoelectron spectroscopy in air (PESA), optical absorption spectroscopy, charge extraction of photo-generated charge carriers by linearly increasing voltage (photo-CELIV), time-resolved photoluminescence measurements, X-ray reflectometry (XR), and analysis of dark current behavior. The observed differences in device performance are shown to be influenced by changes to energy levels and charge transport properties resulting from differences in the microstructure of the donor layers. Importantly, this work demonstrates that in addition to the donor/acceptor microstructure, the intraphase microstructure can influence critical parameters and can therefore have a significant impact on OPV performance. © 2013, Wiley-VCH Verlag GmbH & Co. KGaAen_AU
dc.identifier.citationScholes, F. H., Ehlig, T., James, M., Lee, K. H., Duffy, N., Scully, A. D., Singh, T. B., Winzenberg, K. N., Kemppinen, P., & Watkins, S. E. (2013). Intraphase microstructure–understanding the impact on organic solar cell performance. Advanced Functional Materials, 23(45), 5655-5662. doi:10.1002/adfm.201300726en_AU
dc.identifier.govdoc5393en_AU
dc.identifier.issn1616-301Xen_AU
dc.identifier.issue45en_AU
dc.identifier.journaltitleAdvanced Functional Materialsen_AU
dc.identifier.pagination5655-5662en_AU
dc.identifier.urihttps://doi.org/10.1002/adfm.201300726en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/5718en_AU
dc.identifier.volume23en_AU
dc.language.isoenen_AU
dc.publisherWiley-V C H Verlag GMBHen_AU
dc.subjectSolar cellsen_AU
dc.subjectOrganic solar cellsen_AU
dc.subjectMicrostructureen_AU
dc.subjectPhotovoltaic cellsen_AU
dc.subjectX-ray lasersen_AU
dc.subjectSpectroscopyen_AU
dc.titleIntraphase microstructure–understanding the impact on organic solar cell performanceen_AU
dc.typeJournal Articleen_AU
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