Please use this identifier to cite or link to this item: https://doi.org/10.1039/c4ta00289j
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dc.titleA work-function tunable polyelectrolyte complex (PEI:PSS) as a cathode interfacial layer for inverted organic solar cells
dc.contributor.authorLin, Z.
dc.contributor.authorChang, J.
dc.contributor.authorZhang, J.
dc.contributor.authorJiang, C.
dc.contributor.authorWu, J.
dc.contributor.authorZhu, C.
dc.date.accessioned2014-10-07T04:23:18Z
dc.date.available2014-10-07T04:23:18Z
dc.date.issued2014-06-07
dc.identifier.citationLin, Z., Chang, J., Zhang, J., Jiang, C., Wu, J., Zhu, C. (2014-06-07). A work-function tunable polyelectrolyte complex (PEI:PSS) as a cathode interfacial layer for inverted organic solar cells. Journal of Materials Chemistry A 2 (21) : 7788-7794. ScholarBank@NUS Repository. https://doi.org/10.1039/c4ta00289j
dc.identifier.issn20507496
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/81925
dc.description.abstractHigh-efficiency inverted polymer solar cells (PSCs) with a polyelectrolyte complex, polyethylenimine:poly(styrenesulfonate) (PEI:PSS), as the cathode interfacial layer for efficient electron extraction are demonstrated. By introducing the negatively charged PSS- as the counter ions into PEI, the imine protonation could be tuned, leading to tunable work-function of the PEI:PSS coated ITO. The incorporation of PSS in PEI enhances the photocurrent and power conversion efficiency (PCE) of the devices, due to an improved electron extraction at the PEI:PSS-active-layer interfaces. Furthermore, a TiOx-PEI:PSS combined interfacial layer further enhances the cell performance and eliminates the need for light-soaking treatment for TiO x, owing to the improved hole-blocking and surface-state passivation in the interfacial layer. The achieved high cell performance, better stability, low-cost materials, and low-temperature solution processes of the TiO x-PEI:PSS interfacial layers demonstrate a promising cathode configuration for realizing efficient and long lifetime PSCs. This journal is © the Partner Organisations 2014.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1039/c4ta00289j
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentCHEMISTRY
dc.contributor.departmentELECTRICAL & COMPUTER ENGINEERING
dc.description.doi10.1039/c4ta00289j
dc.description.sourcetitleJournal of Materials Chemistry A
dc.description.volume2
dc.description.issue21
dc.description.page7788-7794
dc.description.codenJMCAE
dc.identifier.isiut000335924100024
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